Quick connecting device for inner cone insulator and electric power maintenance equipment
By designing clamping arm assemblies and adjusting assemblies for inner cone insulators, rapid and reliable contact with the inner wall of the inner cone insulator is achieved, solving the problems of slow connection speed and poor versatility of inner cone insulators, and improving the efficiency and standardization of power equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIDIAN BAOJI ELECTRIC CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-14
AI Technical Summary
Existing technologies for internal cone insulators suffer from slow connection speeds, limited versatility and interchangeability, resulting in low maintenance efficiency for power equipment and failing to meet the demands for rapid construction and maintenance.
A quick-connection device including a clamping arm assembly and an adjustment assembly is designed. The clamping arm assembly achieves reliable contact with the inner wall of the inner cone insulator through the rotation of the first and second clamping arms and the contact finger structure. The adjustment assembly achieves quick opening and closing and adapts to inner cone insulators of different specifications through the cooperation of the insulating handle and the adjustment rod.
It improves the reliability and stability of inner cone insulator connections, is compatible with various specifications of inner cone insulators, saves maintenance costs, and improves the standardization and efficiency of maintenance operations.
Smart Images
Figure CN224123200U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution system technology, and in particular to a quick connection device for inner cone insulators and power maintenance equipment. Background Technology
[0002] With the continuous development of the power industry, the scale of power grid construction is also expanding, placing higher demands on the efficiency of power equipment installation and maintenance, especially in some dangerous high-voltage electrical equipment. In the power distribution system of gas-insulated switchgear and other power equipment, the inner cone insulator is an important component to ensure electrical insulation and connection. For example, when the gas-insulated switchgear requires circuit grounding, resistance measurement wiring, or circuit breaker mechanical characteristic testing at the operating site, the grounding wire needs to be connected through the inner cone insulator.
[0003] Because of their concave structure, inner cone insulators are not easily visible and cannot be easily and quickly connected to the grounding wire. Furthermore, the market offers various specifications of inner cone insulators, requiring the use of many different connection devices, making operation more cumbersome and resulting in poor consistency in maintenance equipment. In addition, existing technologies and traditional connection methods suffer from slow connection speeds, limited versatility and interchangeability, failing to meet the needs of rapid construction and maintenance.
[0004] Therefore, there is an urgent need for a quick connection device for inner cone insulators, suitable for important power supply sites, to improve work efficiency, shorten power outage time, and thus ensure the stable operation of the power distribution system. Utility Model Content
[0005] The purpose of this utility model is to provide a quick connection device for inner cone insulators and a power maintenance equipment.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] Quick-connection device for inner cone insulators includes:
[0008] A clamping arm assembly, comprising a first clamping arm, a second clamping arm, and a pivot pin, wherein the pivot pin is rotatably disposed in the middle portion of the first clamping arm and the middle portion of the second clamping arm, and the first clamping arm and the second clamping arm rotate relative to each other about the pivot pin as an axis; a first contact finger is provided at the top end of the first clamping arm, and a second contact finger is provided at the top end of the second clamping arm.
[0009] When the bottom ends of the first clamping arm and the second clamping arm tend to move closer together, the distance between the first and second contact fingers decreases; when the bottom ends of the first clamping arm and the second clamping arm tend to move further apart, the distance between the first and second contact fingers increases until both the first and second contact fingers abut against the inner wall of the inner cone insulator.
[0010] An adjustment assembly includes an adjustment rod and an insulating handle. One end of the adjustment rod is movably connected to the bottom end of the first clamping arm, and the other end of the adjustment rod is fixedly connected to the bottom end of the second clamping arm. The insulating handle is fixedly connected to the bottom end of the first clamping arm. The insulating handle is provided with an adjustment drive component, which can drive the adjustment rod to reciprocate axially relative to the bottom end of the first clamping arm.
[0011] As an optional technical solution for a quick connection device for an inner cone insulator, the adjusting rod is configured as a screw, which is slidably connected to the bottom end of the first clamping arm along the axial direction of the screw. The adjusting drive is configured as a nut, which is threadedly connected to the screw. The nut can rotate to bring the bottom end of the second clamping arm closer to or away from the bottom end of the first clamping arm.
[0012] As an optional technical solution for a quick connection device for an inner cone insulator, the nut is located between the bottom end of the first clamping arm and the bottom end of the second clamping arm.
[0013] As an optional technical solution for a quick connection device for an inner cone insulator, the nut is located on the side of the bottom end of the first clamping arm away from the bottom end of the second clamping arm, and the nut is rotatably connected to the bottom end of the first clamping arm about the screw as an axis.
[0014] As an optional technical solution for a quick connection device for inner cone insulators, the adjustment drive is a servo motor, which can control the distance between the bottom end of the first clamping arm and the bottom end of the second clamping arm.
[0015] As an optional technical solution for a quick connection device for an inner cone insulator, the adjustment assembly further includes a connector, the adjustment rod is inserted through the bottom end of the second clamping arm, and the connector is detachably connected to the adjustment rod and the second clamping arm respectively.
[0016] As an optional technical solution for a quick connection device for an inner cone insulator, a limiting head is provided at the end of the pin, the limiting head being used to prevent the first clamping arm and / or the second clamping arm from disengaging from the pin.
[0017] As an optional technical solution for a quick connection device for an inner cone insulator, the first contact finger and / or the second contact finger are configured as watch strap contact fingers.
[0018] The power maintenance equipment includes a maintenance end and a connecting wire, and further includes a quick connection device for an inner cone insulator as described in any of the above claims, wherein the two ends of the connecting wire are respectively connected to the adjusting rod and the maintenance end.
[0019] As an optional technical solution for power maintenance equipment, the maintenance terminal includes a grounding busbar and / or a resistance tester.
[0020] The beneficial effects of this utility model are:
[0021] This utility model provides a quick-connect device for inner cone insulators, comprising a clamping arm assembly and an adjusting assembly. The first and second clamping arms of the clamping arm assembly rotate relative to each other around a pivot pin. Contact finger structures are added to the contact portions of the first and second clamping arms with the inner cone insulator. These first and second contact fingers respectively form electrical contact with the inner cone insulator, improving the reliability of the quick-connect device's contact with the inner wall of the inner cone insulator. When the bottom ends of the first and second clamping arms tend to move closer together, the distance between the first and second contact fingers decreases until both fingers can simultaneously extend into the inner cone insulator. When the bottom ends of the first and second clamping arms tend to move further apart, the distance between the first and second contact fingers increases until both fingers abut against the inner wall of the inner cone insulator. The insulating handle in the adjustment assembly is fixed to the bottom end of the first clamping arm, making it convenient for workers to hold and quickly connect the device. One end of the adjustment rod is movably connected to the bottom end of the first clamping arm, and the other end is fixed to the bottom end of the second clamping arm. The insulating handle has an adjustment drive component that can drive the adjustment rod to reciprocate axially relative to the bottom end of the first clamping arm, thereby changing the distance between the bottom ends of the first and second clamping arms and achieving the switching of the opening and closing states of the first and second contact fingers in the clamping arm assembly. Furthermore, the relative expansion process of the first and second contact fingers can be controlled uniformly by the adjustment drive component to ensure that the first and second contact fingers can provide a continuous contact force with the inner cavity of the inner cone insulator, ensuring the standardization of maintenance operations and improving the stability of contact. By opening and closing the quick-connect device for inner cone insulators, it is possible to more easily and quickly contact the inner wall of the inner cone insulator. This enables the quick-connect device for inner cone insulators to quickly contact inner cone insulators of different inner diameters, such as #2, #3, and #4. It is compatible with various specifications of inner cone insulators on the market. Only one set of maintenance equipment is required for unified operation. It has strong versatility and interchangeability, saves maintenance costs, and further improves the standardization and efficiency of maintenance operations.
[0022] This utility model also discloses a power maintenance device, including a maintenance end and a connecting wire, and also includes the aforementioned quick-connect device for inner cone insulators. The two ends of the connecting wire are respectively connected to the adjusting rod and the maintenance end, meeting the needs of rapid construction and maintenance. When a series of operations such as circuit grounding, resistance measurement wiring, or circuit breaker mechanical characteristic testing are required at the site of power equipment operation, such as gas-insulated switchgear, the first and second contact fingers on the top of the quick-connect device for inner cone insulators simultaneously make reliable contact with the inner cavity of the inner cone insulator. Then, the connecting wire is fixed on the adjusting rod for easy connection, meeting the need to lead the connecting wire out from the inner cone insulator to achieve the requirements of circuit grounding and resistance measurement wiring. Attached Figure Description
[0023] Figure 1 This is a structural schematic diagram of a quick-connect device for an inner cone insulator provided in a specific embodiment of this utility model;
[0024] Figure 2 This is a schematic diagram of the operation of the power maintenance equipment provided in a specific embodiment of this utility model.
[0025] In the picture:
[0026] 100. Clamping arm assembly; 110. First clamping arm; 111. First contact finger; 120. Second clamping arm; 121. Second contact finger; 130. Shaft pin;
[0027] 200. Adjusting assembly; 210. Adjusting rod; 220. Nut; 230. Connecting piece;
[0028] 300, connecting wire; 400, grounding busbar; 500, inner cone insulator. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0033] like Figure 1 and Figure 2 As shown, this utility model discloses a quick-connect device for an inner cone insulator, including a clamping arm assembly 100 and an adjusting assembly 200. The clamping arm assembly 100 includes a first clamping arm 110, a second clamping arm 120, and a pivot pin 130. The pivot pin 130 rotatably passes through the middle of the first clamping arm 110 and the middle of the second clamping arm 120. The first clamping arm 110 and the second clamping arm 120 rotate relative to each other about the pivot pin 130. A first contact finger 111 is provided at the top of the first clamping arm 110, and a second contact finger 121 is provided at the top of the second clamping arm 120. Contact finger structures are added to the upper parts of the first clamping arm 110 and the second clamping arm 120 where they contact the inner cone insulator 500. Electrical contact is formed with the inner cone insulator 500 through the first contact finger 111 and the second contact finger 121, respectively, which improves the reliability of the quick-connect device's contact with the inner wall of the inner cone insulator 500.
[0034] When the bottom end of the first clamping arm 110 and the bottom end of the second clamping arm 120 tend to move closer together, the distance between the first contact finger 111 and the second contact finger 121 decreases until the first contact finger 111 and the second contact finger 121 can simultaneously extend into the inner cone insulator 500; when the bottom end of the first clamping arm 110 and the bottom end of the second clamping arm 120 tend to move further apart, the distance between the first contact finger 111 and the second contact finger 121 increases until both the first contact finger 111 and the second contact finger 121 abut against the inner wall of the inner cone insulator 500.
[0035] The adjustment assembly 200 includes an adjustment rod 210 and an insulating handle. One end of the adjustment rod 210 is movably connected to the bottom end of the first clamping arm 110, and the other end of the adjustment rod 210 is fixedly connected to the bottom end of the second clamping arm 120. The insulating handle is fixedly connected to the bottom end of the first clamping arm 110. The insulating handle is provided with an adjustment drive, which can drive the adjustment rod 210 to reciprocate axially relative to the bottom end of the first clamping arm 110, thereby changing the distance between the bottom ends of the first clamping arm 110 and the bottom ends of the second clamping arm 120, and achieving the switching of the opening and closing states of the first contact finger 111 and the second contact finger 121 in the clamping arm assembly 100. Furthermore, the relative expansion process of the first contact finger 111 and the second contact finger 121 can be controlled by the adjustment drive to always be uniform, so as to ensure that the first contact finger 111 and the second contact finger 121 can provide a continuous contact force with the inner cavity of the inner cone insulator 500, ensuring the standardization of maintenance operations and improving the stability of contact. By opening and closing the quick-connect device for the inner cone insulator, it is possible to more easily and quickly contact the inner wall of the inner cone insulator 500. This enables the quick-connect device for the inner cone insulator to quickly contact the inner cone insulator 500 products with different inner diameters, such as #2, #3, and #4. It is compatible with various specifications of inner cone insulators 500 on the market. Only one set of maintenance equipment is required for unified operation. It has strong versatility and interchangeability, saves maintenance costs, and further improves the standardization and efficiency of maintenance operations.
[0036] For example, both the first contact finger 111 and the second contact finger 121 can be specifically configured as watch strap contacts. The watch strap contacts may include an elastic watch strap, which forms electrical contact with the inner cone insulator 500, further ensuring the reliability of the contact between the quick-connect device for the inner cone insulator and the inner wall of the inner cone insulator 500. Except for the insulating handle, all components of the clamping arm assembly 100 and the adjusting assembly 200 in the quick-connect device for the inner cone insulator are made of conductive metal. The insulating handle can be made of insulating materials such as rubber or wood.
[0037] In this embodiment, the adjusting rod 210 is designed as a screw, which is slidably connected to the bottom end of the first clamping arm 110 along its axial direction. Correspondingly, the adjusting drive component is set as a nut 220, which is threadedly connected to the screw. The nut 220 can rotate to make the bottom end of the second clamping arm 120 approach or move away from the bottom end of the first clamping arm 110. Tightening the nut 220 makes the bottom end of the second clamping arm 120 move away from the bottom end of the first clamping arm 110. The first contact finger 111 and the second contact finger 121 expand relative to each other until they simultaneously contact the inner wall of the inner cone insulator 500. The operator can adjust the size by holding the insulating handle and rotating the nut 220. This allows the expansion distance of the quick connection device for the inner cone insulator to be adjusted so that the top contact finger part of the clamping arm assembly 100 can contact the inner cone insulators 500 of different specifications such as #2, #3, and #4. By continuing to tighten the nut 220, a reliable clamping is achieved between the top of the quick connection device for the inner cone insulator and the inner cavity of the inner cone insulator 500. For example, in order to ensure the stability and service life of the threaded adjustment structure, the nut 220 can be made of metal, and a knob shell made of insulating material can be fitted around the nut 220 to ensure the safety of the operator.
[0038] The steps for using the quick-connect device for inner cone insulators are as follows: First, manually reduce the angle between the first clamping arm 110 and the second clamping arm 120 to place the top contact finger portion of the clamping arm assembly 100 into the inner cavity of the inner cone insulator 500; then, bring the first contact finger 111 close to one side of the inner cavity of the inner cone insulator 500; subsequently, continuously adjust the corresponding positions of the screw and the nut 220 by rotating the nut 220 on the insulating handle, so that the angle between the first clamping arm 110 and the second clamping arm 120 changes, changing the distance between the first contact finger 111 and the second contact finger 121, so that the second contact finger 121 forms electrical contact with the other side of the inner cavity of the inner cone insulator 500; and by continuing to tighten the nut 220, the contact between the quick-connect device for inner cone insulators and the inner cavity of the inner cone insulator 500 becomes more reliable.
[0039] Specifically, the adjustment assembly 200 also includes a connector 230. The adjustment rod 210 passes through the bottom end of the second clamping arm 120. The connector 230 is detachably connected to both the adjustment rod 210 and the second clamping arm 120, facilitating stable assembly or storage. The connector 230 may be a fixing nut made of metal, positioned on one or both sides of the second clamping arm 120 to define the relative position of the second clamping arm 120 and the adjustment rod 210.
[0040] In one embodiment of this invention, the nut 220 is located between the bottom end of the first clamping arm 110 and the bottom end of the second clamping arm 120. The screw slides in a direction away from the bottom ends of the first clamping arm 110 and the second clamping arm 120 without any limiting obstruction. The relative position of the screw and the second clamping arm 120 can be changed axially by rotating the nut 220 on the inner side of the first clamping arm 110 near the second clamping arm 120, so that the clamping arm assembly 100 expands and can prevent it from retracting in the opposite direction, thus maintaining reliable clamping contact.
[0041] In another embodiment of this invention, the nut 220 is located on the side of the bottom end of the first clamping arm 110 away from the bottom end of the second clamping arm 120. The nut 220 and the bottom end of the first clamping arm 110 are rotatably connected by a screw as an axis. The nut 220 and the bottom end of the first clamping arm 110 are relatively fixed in the axial position of the screw, which can also stably control the expansion angle of the clamping arm assembly 100.
[0042] It is understandable that a limiting head is provided at the end of the pin 130. The limiting head is used to prevent the first clamping arm 110 and the second clamping arm 120 from disengaging from the pin 130, so as to ensure the assembly stability of the clamping arm assembly 100.
[0043] Optionally, the adjustment drive can also be a servo motor. The servo motor can more precisely control the distance between the bottom end of the first clamping arm 110 and the bottom end of the second clamping arm 120. It can also be remotely controlled in some scenarios or spaces where it is inconvenient for staff to adjust manually.
[0044] This utility model also discloses a power maintenance device, including a maintenance end and a connecting wire 300, and also includes the aforementioned quick-connect device for the inner cone insulator. The two ends of the connecting wire 300 are respectively connected to the adjusting rod 210 and the maintenance end, meeting the needs of rapid construction and maintenance. When a series of operations such as circuit grounding, resistance measurement wiring, or circuit breaker mechanical characteristic testing are required at the site of power equipment operation such as gas-insulated switchgear, the first contact finger 111 and the second contact finger 121 at the top of the quick-connect device for the inner cone insulator 500 installed inside the gas-insulator simultaneously make reliable contact with the inner cavity of the inner cone insulator 500. Then, the connecting wire 300 is fixed on the adjusting rod 210 for easy connection, meeting the need to lead the connecting wire 300 out from the inner cone insulator 500 to achieve circuit grounding and resistance measurement wiring requirements. The other end of the connecting wire 300 is connected to the grounding bar 400 of the switchgear, achieving rapid grounding of the lower opening of the gas-insulator. After a reliable connection is formed, the aforementioned tests and inspections can be performed.
[0045] Specifically, the maintenance end includes a grounding busbar 400 and a resistance tester. The grounding busbar 400 is installed at the bottom of the inside of the gas-filled cabinet, and a connecting wire 300 is led out from the adjusting rod 210 of the quick connection device for the inner cone insulator for grounding, so as to facilitate connection.
[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A quick-connect device for inner cone insulators, characterized in that, include: A clamping arm assembly (100) includes a first clamping arm (110), a second clamping arm (120), and a pivot pin (130). The pivot pin (130) is rotatably disposed in the middle of the first clamping arm (110) and the middle of the second clamping arm (120). The first clamping arm (110) and the second clamping arm (120) rotate relative to each other about the pivot pin (130). A first contact finger (111) is provided at the top end of the first clamping arm (110), and a second contact finger (121) is provided at the top end of the second clamping arm (120). When the bottom end of the first clamping arm (110) and the bottom end of the second clamping arm (120) tend to move closer together, the distance between the first contact finger (111) and the second contact finger (121) decreases; when the bottom end of the first clamping arm (110) and the bottom end of the second clamping arm (120) tend to move further apart, the distance between the first contact finger (111) and the second contact finger (121) increases until both the first contact finger (111) and the second contact finger (121) abut against the inner wall of the inner cone insulator (500). An adjustment assembly (200) includes an adjustment rod (210) and an insulating handle. One end of the adjustment rod (210) is movably connected to the bottom end of the first clamping arm (110), and the other end of the adjustment rod (210) is fixedly connected to the bottom end of the second clamping arm (120). The insulating handle is fixedly connected to the bottom end of the first clamping arm (110). The insulating handle is provided with an adjustment drive component, which can drive the adjustment rod (210) to reciprocate axially relative to the bottom end of the first clamping arm (110).
2. The quick-connect device for inner cone insulators according to claim 1, characterized in that, The adjusting rod (210) is configured as a screw, and the screw is slidably connected to the bottom end of the first clamping arm (110) along the axial direction of the screw. The adjusting drive is configured as a nut (220), and the nut (220) is threadedly connected to the screw. The nut (220) can rotate to make the bottom end of the second clamping arm (120) approach or move away from the bottom end of the first clamping arm (110).
3. The quick-connect device for inner cone insulators according to claim 2, characterized in that, The nut (220) is located between the bottom end of the first clamping arm (110) and the bottom end of the second clamping arm (120).
4. The quick-connect device for an inner cone insulator according to claim 2, characterized in that, The nut (220) is located on the side of the bottom end of the first clamping arm (110) away from the bottom end of the second clamping arm (120), and the nut (220) is rotatably connected to the bottom end of the first clamping arm (110) with the screw as the axis.
5. The quick-connect device for an inner cone insulator according to claim 1, characterized in that, The adjustment drive is a servo motor, which can control the distance between the bottom end of the first clamping arm (110) and the bottom end of the second clamping arm (120).
6. The quick-connect device for an inner cone insulator according to claim 1, characterized in that, The adjustment assembly (200) further includes a connector (230), the adjustment rod (210) passes through the bottom end of the second clamping arm (120), and the connector (230) is detachably connected to the adjustment rod (210) and the second clamping arm (120).
7. The quick-connect device for an inner cone insulator according to claim 1, characterized in that, The end of the pin (130) is provided with a limiting head, which is used to prevent the first clamping arm (110) and / or the second clamping arm (120) from disengaging from the pin (130).
8. The quick-connect device for an inner cone insulator according to claim 1, characterized in that, The first contact finger (111) and / or the second contact finger (121) are configured as watchband contact fingers.
9. Power maintenance equipment, characterized in that, It includes a maintenance end and a connecting wire (300), and also includes a quick connection device for an inner cone insulator as described in any one of claims 1-8, wherein the two ends of the connecting wire (300) are respectively connected to the adjusting rod (210) and the maintenance end.
10. The power maintenance equipment according to claim 9, characterized in that, The maintenance terminal includes a grounding bus (400) and / or a resistance tester.