Rapid plugging device for high-voltage emergency power taking

Abstract

The utility model relates to a high-voltage emergency power-taking rapid plugging device comprising an extension tube used for connecting a high-voltage power supply; the adapter is mounted between the extension tube and the fitting cover assembly; the insulating plug is arranged in the fitting cover assembly and is used for ensuring electrical safety; the fitting seat assembly is arranged at the periphery of the adapter and is used for fixing and protecting the adapter; the hardware fitting cover assembly is arranged on the periphery of the insulating plug and is used for being tightly matched with the hardware fitting seat assembly; the grounding wire assembly is connected between the extension tube and the fitting seat assembly and is used for ensuring grounding safety; and the double-thread screw assembly is used for connecting the extension pipe and the C-shaped sleeve. The high-voltage emergency power taking device has the advantages that the quick plugging function of high-voltage emergency power taking is realized, and compared with a traditional high-voltage power taking mode, the connection time is greatly shortened, and temporary power support can be quickly provided for important facilities in an emergency.

Description

Technical Field

[0001] This utility model relates to a high-voltage emergency power extraction quick-plug device, belonging to the field of power technology. Background Technology

[0002] In modern society, the stability of power supply is crucial. However, natural disasters (such as earthquakes, floods, typhoons, etc.), equipment failures, and human-caused accidents can lead to localized power outages. In such situations, an emergency measure capable of rapidly restoring power supply is needed. High-voltage emergency power supply quick-connect devices can quickly connect to backup power sources or other reliable power points in emergencies, providing temporary power support for critical facilities (such as hospitals, communication base stations, emergency command centers, etc.), ensuring the normal operation of critical equipment and meeting people's basic living needs.

[0003] Traditional high-voltage power extraction methods typically require complex electrical connection operations, including power outages, wiring, and debugging, which are time-consuming and cannot meet the requirements for rapid response in emergency situations. For example, when performing line maintenance or troubleshooting, manual wiring is required after a power outage, which not only affects the reliability of power supply but is also cumbersome and prone to human error. Traditional connection methods may have safety hazards such as poor contact and leakage, especially in emergency situations where operators may overlook safety details due to time constraints, increasing the risk of accidents. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a high-voltage emergency power extraction quick-plug device. The technical solution of this utility model is as follows:

[0005] A high-voltage emergency power supply quick-plug device, comprising:

[0006] Extension tube, used to connect to high-voltage power supply;

[0007] An adapter is installed between the extension tube and the hardware cover assembly;

[0008] An insulating plug is installed inside the hardware cover assembly to ensure electrical safety;

[0009] A fitting assembly is installed around the adapter head to secure and protect it.

[0010] A fitting cover assembly is installed around the insulating plug for tight fit with the fitting base assembly;

[0011] A grounding wire assembly is connected between the extension tube and the hardware base assembly to ensure grounding safety;

[0012] A double-ended screw assembly is used to connect the extension tube and the C-type sleeve.

[0013] The double-ended screw assembly includes a double-ended screw, a flat washer, a spring washer, and a connecting nut. One end of the double-ended screw is threaded onto the C-shaped sleeve, and the other end passes through the connecting plate inside the extension tube and is sequentially fitted with the flat washer, spring washer, and connecting nut. One end of the C-shaped sleeve is inserted into the extension tube.

[0014] The adapter includes an insulating component, a first copper core, a second copper core, and a third copper core. The first and third copper cores are sequentially lined inside the insulating component. The first and third copper cores are arranged in a stepped manner. The second copper core is coaxially arranged inside the first copper core. After the first, second, and third copper cores are assembled and sealed, they are injection molded using insulating rubber to form the insulating component.

[0015] The hardware assembly includes a main fixing block, a side fixing block, a fixing seat, a spring, a ball bearing, a fixing cover, and a fixing shell. The main fixing block is embedded in a groove around the adapter head. The side fixing block is disposed on one side of the main fixing block and is integrally formed with the main fixing block. One end of the fixing seat abuts against the side of the main fixing block. The fixing seat has a side fixing block mounting groove around its periphery, and the end of the side fixing block is inserted into the side fixing block mounting groove. The spring and the ball bearing are installed on the fixing seat. The fixing shell is fitted around the fixing seat and slides with the fixing seat through the spring. The ball bearing is installed in a corresponding conical hole on the fixing seat and is pushed by the fixing shell to assemble with the hardware cover assembly.

[0016] The fitting cover assembly includes a fitting cover base and a fitting cap installed around the periphery of the fitting cover base. The fitting cap is threadedly engaged with the fitting cover base and is tightened by rotating the internal thread. The insulating plug is installed inside the fitting cover base and is pressed by the fitting cover base. A ball groove that engages with the ball is provided on the periphery of the fitting cover base.

[0017] The grounding wire assembly includes a first grounding wire, a second grounding wire, a lug, a thermoplastic sleeve, and a cap bolt. The cap bolt is installed around the extension tube. One end of the first grounding wire and the second grounding wire are connected to the cap bolt, and the other end passes through the through hole of the main fixing block and is fitted with a lug. A thermoplastic sleeve is fitted between the first grounding wire and the second grounding wire.

[0018] The extension tube is made of EPDM rubber and has a shielding layer, an insulating layer and a conductive layer arranged from the outside to the inside.

[0019] The main fixing block, side fixing block, fixing seat, fixing cover and fixing shell are made of stainless steel or aluminum alloy.

[0020] The advantages of this utility model are:

[0021] Rapid connection and disconnection: This device enables rapid plug-and-play functionality for high-voltage emergency power supply, significantly reducing connection time compared to traditional high-voltage power extraction methods. It can quickly provide temporary power support to critical facilities in emergencies. For example, after a natural disaster, rescue workers can quickly use this device to connect to backup power sources, restoring power to critical facilities such as hospitals and communication base stations, thus buying valuable time for disaster relief efforts.

[0022] Enhanced safety: Effectively prevents safety hazards such as leakage and short circuits. Compared with traditional connection methods, it reduces the risk of accidents.

[0023] Highly adaptable: It can adapt to different high-voltage power systems and emergency scenarios, exhibiting high versatility and flexibility. It plays a vital role in both urban power grids and remote power emergency situations. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0025] Figure 2 yes Figure 1 A schematic diagram of the explosion structure. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0027] See Figure 1 and Figure 2 This utility model relates to a high-voltage emergency power supply quick-connect and disconnect device, comprising: an extension tube 1 for connecting to a high-voltage power supply; a converter 2 installed between the extension tube 1 and a hardware cover assembly 5; an insulating plug 3 installed inside the hardware cover assembly 5 to ensure electrical safety; a hardware base assembly 4 installed around the converter 2 for fixing and protecting the converter 2; the hardware cover assembly 5 installed around the insulating plug 3 for tight fit with the hardware base assembly 4; and a grounding wire assembly 6 connected between the extension tube 1 and the hardware base assembly 4 to ensure grounding safety.

[0028] The double-headed screw assembly 7 is used to connect the extension tube 1 and the C-type sleeve.

[0029] Based on the above component settings, the following was achieved:

[0030] Quick-plug function: The device is designed for quick plugging and unplugging, which means that high-voltage power can be quickly connected or disconnected in an emergency, improving the speed of emergency response.

[0031] Electrical safety: The use of insulating plug 3 ensures electrical safety, prevents current leakage and electric shock accidents, and protects the safety of operators and equipment.

[0032] Compact structure: The fitting base assembly 4 and the fitting cover assembly 5 fit together tightly, making the whole device compact and easy to install and transport.

[0033] Grounding safety: Grounding wire assembly 6 ensures good grounding and prevents injury to personnel and equipment from power surges caused by equipment failure or lightning strikes.

[0034] Fixture and protection: The hardware base assembly 4 is used to fix and protect the adapter 2, which helps to prevent the adapter from being damaged in high-pressure environments.

[0035] Durability: The connection stability and durability are enhanced by using the double-ended screw assembly 7 to connect the extension tube 1 and the C-type sleeve, making it suitable for high pressure and harsh environments.

[0036] Easy maintenance: Due to its reasonable structural design, each component is easy to disassemble and replace, making it convenient for daily maintenance and repair.

[0037] High adaptability: This device can adapt to different high-voltage power supplies and hardware configurations, and has good versatility and adaptability.

[0038] Easy to operate: Due to the ergonomic design, operators can more easily perform plugging and unplugging operations, reducing the difficulty of operation.

[0039] High safety: The entire device is designed with safety in mind, from electrical safety to grounding safety to structural stability, all to ensure safe use in high-voltage environments.

[0040] The double-ended screw assembly 7 includes a double-ended screw 7.1, a flat washer 7.2, a spring washer 7.3, and a connecting nut 7.4. One end of the double-ended screw 7.1 is threaded onto the C-shaped sleeve, and the other end passes through the connecting plate inside the extension tube 1 and is sequentially fitted with the flat washer 7.2, the spring washer 7.3, and the connecting nut 7.4. One end of the C-shaped sleeve is inserted into the extension tube 1.

[0041] The configuration of this double-ended screw assembly 7 achieves the following advantages;

[0042] Stable connection: The design of the double-ended screw 7.1 makes the connection between the C-type sleeve and the extension tube 1 more stable. The threaded connection provides strong fastening force and ensures stability under high pressure environment.

[0043] Anti-loosening design: The combination of flat washer 7.2, spring washer 7.3, and connecting nut 7.4 forms an anti-loosening system. Spring washer 7.3 provides preload to prevent the nut from loosening due to vibration or pressure changes.

[0044] Easy to adjust: The design of the double-ended screw 7.1 allows for fine-tuning during installation to ensure a precise fit between the C-type sleeve and the extension tube 1.

[0045] Quick installation: Since the double-ended screw 7.1 can be threaded at both ends simultaneously, it can speed up the installation process and improve work efficiency.

[0046] Sealing performance: One end of the C-type sleeve is inserted into the extension tube 1, and sealing measures may also be involved to prevent moisture and dust from entering and to protect the internal components from environmental influences.

[0047] The adapter 2 includes an insulating component 2.1, a first copper core 2.2, a second copper core 2.3, and a third copper core 2.4. The first copper core 2.2 and the third copper core 2.4 are sequentially lined inside the insulating component 2.1. The first copper core 2.2 and the third copper core 2.4 are arranged in a stepped manner. The second copper core 2.3 is coaxially arranged inside the first copper core 2.2. After the first copper core 2.2, the second copper core 2.3, and the third copper core 2.4 are assembled and sealed, they are injection molded using insulating rubber, which forms the insulating component 2.1.

[0048] The design of this adapter offers the following advantages:

[0049] Strong insulation performance: The use of insulating component 2.1 provides good electrical insulation, protecting operators and equipment from the risk of electric shock and short circuit.

[0050] Structural stability: The first copper core 2.2 and the third copper core 2.4 are arranged in a stepped shape. This design enhances the structural stability and makes the converter more reliable under high voltage conditions.

[0051] Coaxial design: The second copper core 2.3 is coaxially set inside the first copper core 2.2. This coaxial design helps to reduce electromagnetic interference and improve the stability and efficiency of signal transmission.

[0052] Integrated molding: The first copper core 2.2, the second copper core 2.3 and the third copper core 2.4 are assembled and sealed by injection molding of insulating rubber to form the insulating component 2.1. This integrated molding process improves production efficiency and ensures tight fit between components and overall sealing.

[0053] High voltage resistance: Due to the high conductivity of the copper core and the high insulation of the insulating rubber, this structure can withstand high voltage and is suitable for high voltage environments.

[0054] Corrosion and aging resistance: Insulating rubber materials typically have good corrosion and aging resistance, which allows the adapter to maintain stable performance under various environmental conditions.

[0055] The hardware assembly 4 includes a main fixing block 4.1, a side fixing block 4.2, a fixing seat 4.3, a spring 4.4, a ball bearing 4.5, a fixing cover 4.6, and a fixing shell 4.7. The main fixing block 4.1 is embedded in a groove around the adapter head 2. The side fixing block 4.2 is disposed on one side of the main fixing block 4.1 and is integrally formed with the main fixing block 4.1. One end of the fixing seat 4.3 abuts against the side of the main fixing block 4.1. The fixing seat 4.3 has a side fixing block mounting groove around its periphery, and the end of the side fixing block 4.2 is inserted into the side fixing block mounting groove. The spring 4.4 and the ball bearing 4.5 are installed on the fixing seat 4.3. The fixing shell 4.7 is fitted around the fixing seat 4.3 and slides with the fixing seat 4.3 through the spring 4.4. The ball bearing 4.5 is installed in a corresponding conical hole on the fixing seat 4.3.

[0056] The ball bearing 4.5 is pushed by the fixed housing 4.7 and is assembled with the hardware cover assembly 5.

[0057] The design of this hardware holder assembly achieves the following advantages:

[0058] Stability and strength: The main fixing block 4.1 and the side fixing block 4.2 are integrally molded, which improves the stability and strength of the overall structure.

[0059] Precise positioning: The end of the side fixing block 4.2 is inserted into the side fixing block mounting groove. This structure helps to precisely position the side fixing block and ensure the correct assembly between the adapter head 2 and the hardware seat assembly 4.

[0060] Assembly flexibility: The fixed housing 4.7 and the fixed base 4.3 are slidably engaged by the spring 4.4. This design provides assembly flexibility, allowing the components to be adjusted as needed.

[0061] Compact Design: The entire hardware assembly 4 is designed to be compact, reducing space requirements and contributing to the miniaturization and lightening of the overall device.

[0062] Easy to operate: The ball bearing 4.5 is pushed by the fixed housing 4.7. This design simplifies the assembly process with the hardware cover assembly 5, making operation easier.

[0063] Structural reliability: The overall structural design takes into account electrical safety and mechanical stability, which improves the reliability and durability of the device.

[0064] In the fitting assembly of this utility model, wherein,

[0065] The function of spring 4.4 is as follows:

[0066] Pop-out mechanism: When the fixed outer shell 4.7 is rotated, the spring 4.4 pops out, pushing the fixed outer shell 4.7 to move outward.

[0067] Fastening force provided: The spring force of spring 4.4 ensures that the retaining housing 4.7 can firmly press against the groove of the hardware cover 5.2, providing the necessary fastening force to prevent the components from loosening.

[0068] The function of ball bearing 4.5:

[0069] Ejection mechanism: As the spring 4.4 pops out, the fixed outer shell 4.7 ejects the ball 4.5, which plays a key ejection role in the ejection process.

[0070] Positioning and fixing: The ball bearing 4.5 presses against the groove of the hardware cover seat 5.2 to ensure precise positioning and fixing between the fixed housing 4.7 and the hardware cover assembly 5, preventing displacement caused by external force or vibration.

[0071] Combined effect:

[0072] Fastening and insulation: This design, through the synergistic action of spring 4.4 and ball bearing 4.5, ensures the fastening and insulation performance between the fixed housing 4.7 and the hardware cover assembly 5, thereby improving the safety and reliability of the entire high-voltage emergency power supply quick-connect device.

[0073] The fitting cover assembly 5 includes a fitting cover base 5.2 and a fitting cap 5.1 installed on the periphery of the fitting cover base 5.2. The fitting cap 5.1 is threadedly engaged with the fitting cover base 5.2 and is tightened by rotating the internal thread. The insulating plug 3 is installed inside the fitting cover base 5.2 and is pressed by the fitting cover base 5.2. A ball groove that mates with the ball 4.5 is provided on the periphery of the fitting cover base 5.2.

[0074] The structure of the hardware cover assembly 5 has the following advantages:

[0075] Threaded fastening: The hardware cap 5.1 and the hardware cover 5.2 are fastened by threaded engagement. This traditional threaded connection provides reliable fastening force and ensures the stability of the hardware cover assembly under high pressure.

[0076] Insulation performance: The insulating plug 3 is installed inside the hardware cover 5.2. The clamping of the hardware cover 5.2 enhances the insulation performance of the component, prevents current leakage, and ensures operational safety.

[0077] Compact structure: The hardware cap 5.1 is mounted on the periphery of the hardware cap base 5.2, making the entire hardware cap assembly 5 compact, saving space, and easy to integrate into a larger system.

[0078] Easy to install and maintain: The threaded design makes the installation and removal of the 5.1 hardware cap simple, facilitating routine inspection and maintenance.

[0079] Ball joint fit: The outer periphery of the hardware cover 5.2 is provided with ball grooves that mate with the ball 4.5. This design allows the ball 4.5 to precisely fit with the hardware cover 5.2, improving the accuracy and stability of the assembly.

[0080] The grounding wire assembly 6 includes a first grounding wire 6.1, a second grounding wire 6.2, a wire lug 6.3, a thermoplastic sleeve 6.4, and a cap bolt 6.5. The cap bolt 6.5 is installed on the periphery of the extension tube 1. One end of the first grounding wire 6.1 and the second grounding wire 6.2 is connected to the cap bolt 6.5, and the other end passes through the through hole of the main fixing block 4.1 and is fitted with the wire lug 6.3. The thermoplastic sleeve 6.4 is fitted between the first grounding wire 6.1 and the second grounding wire 6.2.

[0081] The cap bolt 6.5 is installed on the periphery of the extension pipe 1, which allows the grounding wire to be quickly connected and improves the efficiency of the grounding operation.

[0082] One end of the first grounding wire 6.1 and the second grounding wire 6.2 are connected to the cap bolt 6.5, and the other end passes through the through hole of the main fixing block 4.1 and is then installed with the wire lug 6.3. This structural design improves the stability and fixation of the grounding wire.

[0083] The use of wire lug 6.3 ensures a good electrical connection between the grounding wire and the equipment, improving the continuity and effectiveness of grounding.

[0084] The wire lugs 6.3 and cap bolts 6.5 are made of corrosion-resistant materials, which helps to maintain the long-term stability of the grounding system in harsh environments.

[0085] The extension tube is made of EPDM rubber and has a shielding layer, an insulating layer and a conductive layer arranged from the outside to the inside.

[0086] The main fixing block 4.1, side fixing block 4.2, fixing seat 4.3, spring 4.4, ball bearing 4.5, fixing cover 4.6 and fixing shell 4.7 are made of stainless steel or aluminum alloy.

[0087] The advantages of using ethylene propylene diene monomer (EPDM) rubber for the extension tube are:

[0088] High temperature resistance: EPDM rubber can withstand temperatures up to 150°C and still operate stably in continuous high temperature environments.

[0089] Chemical resistance: EPDM rubber has good resistance to most chemicals and can work stably in a variety of complex environments without being corroded by the medium.

[0090] Aging resistance: EPDM rubber exhibits extremely strong aging resistance under sunlight, air and high temperature conditions, and can maintain the stability and service life of the material for a long time.

[0091] Excellent mechanical properties: EPDM rubber has excellent tensile strength, flexural properties, elasticity and abrasion resistance, and can withstand high dynamic and static stress.

[0092] Weather resistance and abrasion resistance: EPDM rubber hoses have extremely strong weather resistance, resisting the erosion of harsh environments such as ultraviolet rays, wind, rain, and snow. At the same time, their excellent abrasion resistance effectively resists friction and wear.

[0093] Electrical insulation properties: EPDM rubber has excellent electrical insulation properties and corona resistance, and its electrical properties are superior to or close to those of styrene-butadiene rubber, chlorosulfonated polyethylene, polyethylene and cross-linked polyethylene.

[0094] The advantages of using stainless steel for the main fixing block 4.1, side fixing block 4.2, fixing base 4.3, fixing cover 4.6, and fixing shell 4.7 are as follows:

[0095] Corrosion resistance: Stainless steel has good corrosion resistance and is suitable for various environments, especially humid or chemically corrosive environments.

[0096] High strength and hardness: Stainless steel has high strength and hardness, which can withstand large mechanical loads and maintain structural stability and durability.

[0097] Good thermal and electrical conductivity: Stainless steel has good thermal and electrical conductivity, which helps with heat dissipation and grounding.

[0098] Aesthetically pleasing and easy to clean: The smooth stainless steel surface is easy to clean and maintain, keeping the equipment looking neat.

[0099] The working principle of this utility model is as follows:

[0100] Emergency power supply preparation: Install extension pipe 1 in advance at the spare outgoing bushing of the switch cabinet unit. Extension pipe 1 is used to connect to the high-voltage power supply.

[0101] Quick-plug connection: When emergency power is needed, the operator first removes the insulating plug 3 to expose the interface part of the adapter 2.

[0102] Insert the cable plug: Insert the quick-connect cable plug (i.e., the other end of extension tube 1) into the interface of adapter 2 to achieve electrical connection between the high-voltage power supply and the emergency equipment.

[0103] Rotary snap-lock fixing: The cable plug is secured by rotating the hardware cap 5.1, ensuring a stable connection between the plug and the adapter 2. The hardware cap 5.1 and the hardware cover 5.2 are threaded together and tightened by rotation.

[0104] Emergency power supply: Once the plug is in place, the emergency power supply will supply power to the equipment in need through the extension tube 1, the adapter 2 and the hardware cover assembly 5, to meet the emergency power needs of on-site operations.

[0105] Disconnect: After emergency power is supplied, the operator should unplug the cable quick plug from adapter 2 to disconnect from the emergency power supply.

[0106] Insulation sealing: Finally, put the insulation plug 3 back into its original position to perform insulation sealing, ensuring no current leakage and protecting the safety of equipment and personnel.

[0107] Grounding safety: Throughout the process, the grounding wire assembly 6 is connected between the extension tube 1 and the hardware base assembly 4 to ensure grounding safety and prevent injury to personnel and equipment caused by power surges due to equipment failure or lightning strikes.

[0108] Fixing and protection: The fitting assembly 4 is installed on the periphery of the adapter 2 to fix and protect the adapter 2, ensuring the stability and safety of the connection.

[0109] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-voltage emergency power extraction quick-plug device, characterized in that, include: Extension tube, used to connect to high-voltage power supply; An adapter is installed between the extension tube and the hardware cover assembly; An insulating plug is installed inside the hardware cover assembly to ensure electrical safety; A fitting assembly is installed around the adapter head to secure and protect it. A fitting cover assembly is installed around the insulating plug for tight engagement with the fitting base assembly; A grounding wire assembly is connected between the extension tube and the hardware base assembly to ensure grounding safety; A double-ended screw assembly is used to connect the extension tube and the C-type sleeve.

2. The high-voltage emergency power extraction quick-plug device according to claim 1, characterized in that, The double-ended screw assembly includes a double-ended screw, a flat washer, a spring washer, and a connecting nut. One end of the double-ended screw is threaded onto the C-shaped sleeve, and the other end passes through the connecting plate inside the extension tube and is sequentially fitted with the flat washer, spring washer, and connecting nut. One end of the C-shaped sleeve is inserted into the extension tube.

3. A high-voltage emergency power extraction quick-plug device according to claim 1 or 2, characterized in that, The adapter includes an insulating component, a first copper core, a second copper core, and a third copper core. The first and third copper cores are sequentially lined inside the insulating component. The first and third copper cores are arranged in a stepped manner. The second copper core is coaxially arranged inside the first copper core. After the first, second, and third copper cores are assembled and sealed, they are injection molded using insulating rubber to form the insulating component.

4. The high-voltage emergency power extraction quick-plug device according to claim 1, characterized in that, The hardware assembly includes a main fixing block, a side fixing block, a fixing seat, a spring, a ball bearing, a fixing cover, and a fixing shell. The main fixing block is embedded in a groove around the adapter head. The side fixing block is disposed on one side of the main fixing block and is integrally formed with the main fixing block. One end of the fixing seat abuts against the side of the main fixing block. The fixing seat has a side fixing block mounting groove around its periphery, and the end of the side fixing block is inserted into the side fixing block mounting groove. The spring and the ball bearing are installed on the fixing seat. The fixing shell is fitted around the fixing seat and slides with the fixing seat through the spring. The ball is installed in a corresponding conical hole on the fixed base, and is pushed by the fixed housing to assemble with the hardware cover assembly.

5. The high-voltage emergency power extraction quick-plug device according to claim 4, characterized in that, The fitting cover assembly includes a fitting cover base and a fitting cap installed around the periphery of the fitting cover base. The fitting cap is threadedly engaged with the fitting cover base and is tightened by rotating the internal thread. The insulating plug is installed inside the fitting cover base and is pressed by the fitting cover base. A ball groove that engages with the ball is provided on the periphery of the fitting cover base.

6. The high-voltage emergency power extraction quick-plug device according to claim 5, characterized in that, The grounding wire assembly includes a first grounding wire, a second grounding wire, a lug, a thermoplastic sleeve, and a cap bolt. The cap bolt is installed around the extension tube. One end of the first grounding wire and the second grounding wire are connected to the cap bolt, and the other end passes through the through hole of the main fixing block and is fitted with a lug. A thermoplastic sleeve is fitted between the first grounding wire and the second grounding wire.

7. The high-voltage emergency power extraction quick-plug device according to claim 6, characterized in that, The extension tube is made of EPDM rubber and has a shielding layer, an insulating layer and a conductive layer arranged from the outside to the inside.

8. The high-voltage emergency power extraction quick-plug device according to claim 6, characterized in that, The main fixing block, side fixing block, fixing seat, fixing cover and fixing shell are made of stainless steel or aluminum alloy.

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