Quick insertion device

Abstract

The utility model discloses a quick plug device, which comprises a conductive connecting seat, a conductive column, a post insulator, an insulating handguard and a fixing structure, the lower end of the conductive column is connected with the conductive connecting seat; the upper end of the post insulator is connected with the conductive connecting seat; the insulating handguard comprises an insulating sleeve, an operating part and an insulating connecting seat, the insulating connecting seat is connected with the upper surface of the conductive connecting seat and provided with a movable groove, the operating part is hinged to the movable groove, the two ends of the operating part are an operating end and a connecting end respectively, and the hinge point of the operating part and the insulating connecting seat is located between the operating end and the connecting end. The insulating sleeve is connected with the connecting end and is provided with an insulating groove, and the insulating groove faces the opening of the conductive column; the fixing structure is connected to the conductive connecting base, and when the operating piece rotates around the insulating connecting base to the position where the insulating sleeve makes contact with the fixing structure, the insulating sleeve is connected with the fixing structure. According to the invention, the overhead line cable access process can be simplified, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power maintenance tools, in particular to a quick-insertion device. Background Art

[0002] The upgrade or troubleshooting of power lines generally requires a long power outage. Due to the long power outage, it will cause inconvenience to nearby residents. Construction workers usually isolate the part of the line that needs to be constructed before construction. The non-construction part of the line can continue to be powered by a 10kV generator truck, achieving uninterrupted operation and reducing the impact of construction on nearby residents.

[0003] The access to the power supply connector of the generator truck is generally achieved using a cable access device. However, the existing cable access device is inconvenient to operate, and construction workers often need to spend a long time to carry out the power supply access work, which prolongs the time of the entire construction operation and has low construction efficiency. Moreover, the existing cable access device has poor safety performance and poses huge safety hazards. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a quick-insertion device.

[0005] The solution of the utility model to solve its technical problems is:

[0006] A quick-insert device, comprising:

[0007] Conductive connection seat;

[0008] A conductive column, the lower end of which is connected to the conductive connector;

[0009] A post insulator, wherein the upper end of the post insulator is connected to the conductive connection seat, and the extension direction of the post insulator is consistent with the extension direction of the conductive post;

[0010] An insulating hand guard, comprising an insulating sleeve, an operating member, and an insulating connecting seat, wherein the insulating connecting seat is connected to the upper surface of the conductive connecting seat, the insulating connecting seat is provided with a movable groove, the operating member is hinged to the groove wall of the movable groove, the two ends of the operating member are respectively an operating end and a connecting end, the hinge point between the operating member and the insulating connecting seat is located between the operating end and the connecting end, the insulating sleeve is connected to the connecting end, the insulating sleeve is provided with an insulating groove, the insulating groove is opened toward the conductive column, and when the operating member rotates around the insulating connecting seat, the conductive column enters and exits the insulating groove;

[0011] The fixed structure is connected to the conductive connection seat. When the operating member rotates around the insulating connection seat to a position where the insulating sleeve contacts the fixed structure, the insulating sleeve is connected to the fixed structure.

[0012] The present invention has at least the following beneficial effects: when power supply is not being maintained, the insulating sleeve is arranged on the outside of the conductive column to avoid the conductive column being exposed and reduce the risk of electric shock; before the power supply construction is carried out, the construction personnel pull the operating part to rotate the operating part and let the conductive column fall out of the insulating groove to expose the conductive column, and the conductive column can be connected to the power supply connector of the power supply equipment. The power supply equipment is quickly connected to the conductive column through the power supply connector, thereby quickly connecting with the high-voltage wire to ensure the power supply needs of nearby residents. The operation is simple and fast, which can solve the problem of inconvenient operation of the existing cable access device and improve construction efficiency; moreover, the insulating sleeve has an insulating effect, and the construction personnel do not need to directly touch the conductive column and the conductive connection seat during operation, which has good safety; in addition, due to the provision of a fixed structure, during the power supply construction, the insulating sleeve is connected and locked with the fixed structure, thereby preventing the insulating sleeve from rotating on its own and affecting the construction operation, further improving the safety of the construction process.

[0013] As a further improvement of the above technical solution, the quick-insertion device further includes:

[0014] The mounting support frame includes a vertical plate and a horizontal plate. The upper end of the vertical plate is connected to the horizontal plate, and the horizontal plate is connected to the lower end of the support insulator. The vertical plate is provided with a plurality of first mounting holes.

[0015] As a further improvement of the above technical solution, the upper end of the post insulator is provided with a first screw and a first nut, and the lower end of the post insulator is provided with a second screw and a second nut, the first screw is passed through the conductive connection seat, the first nut is cooperated with the first screw and is connected to the upper surface of the conductive connection seat, the second screw is passed through the horizontal plate, the second nut is cooperated with the second screw and is connected to the lower surface of the horizontal plate.

[0016] As a further improvement of the above technical solution, the conductive connecting seat includes a first connecting plate, a second connecting plate and a third connecting plate. The first connecting plate and the second connecting plate are both arranged horizontally, the conductive column and the insulating connecting seat are respectively connected to the first connecting plate, the support insulator is connected to the second connecting plate, and the third connecting plate is arranged at an angle. The upper end of the third connecting plate is connected to the first connecting plate, and the lower end of the third connecting plate is connected to the second connecting plate.

[0017] As a further improvement of the above technical solution, the angle between the third connecting plate and the first connecting plate is 135°.

[0018] As a further improvement of the above technical solution, the first connecting plate is provided with a second mounting hole, and the second mounting hole and the conductive column are respectively located at two ends of the first connecting plate along the length direction.

[0019] As a further improvement of the above technical solution, the fixed structure is a contact rod, the contact rod is made of ferromagnetic material, the insulating hand guard also includes a magnetic part, the magnetic part is connected to the inner wall of the insulating groove, when the operating part rotates around the hinge point with the insulating connecting seat to the position where the insulating sleeve contacts the contact rod, the insulating sleeve and the contact rod are magnetically connected through the magnetic part.

[0020] As a further improvement of the above technical solution, the conductive connection seat is provided with a screw hole, and the outer periphery of the contact rod is provided with an external thread structure, and the external thread structure is matched and connected with the screw hole.

[0021] As a further improvement of the above technical solution, a third screw and a third nut are provided at the lower end of the conductive column, and the conductive connection seat is provided with a through hole. The third screw is passed through the through hole and is connected with the third nut, and the third nut abuts against the lower surface of the conductive connection seat.

[0022] As a further improvement of the above technical solution, the conductive column is provided with a mesh structure, and the mesh structure is coated on the outer peripheral wall surface of the conductive column. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief description of the drawings required for describing the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also derive other design solutions and drawings based on these drawings without inventive effort.

[0024] Figure 1 This is a schematic structural diagram of the quick-insertion device of an embodiment of the utility model in a first state;

[0025] Figure 2 This is a schematic structural diagram of the quick-insertion device of an embodiment of the utility model in the second state;

[0026] Figure 3 This is a top view of the conductive connection seat of an embodiment of the utility model;

[0027] Figure 4 This is a front view of the conductive connection seat of an embodiment of the utility model;

[0028] Figure 5 This is a front view of a conductive column according to an embodiment of the present utility model;

[0029] Figure 6 This is a schematic structural diagram of an insulating connector according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic structural diagram of an insulating sleeve and an operating member according to an embodiment of the present utility model;

[0031] Figure 8 It is a schematic diagram of the internal structure of the insulating sleeve of an embodiment of the utility model.

[0032] Figure markings: 100, conductive connecting seat; 110, first connecting plate; 120, second connecting plate; 130, third connecting plate; 140, screw hole; 150, second mounting hole; 160, through hole; 200, conductive column; 210, third screw; 220, mesh structure; 300, pillar insulator; 310, first screw; 320, second screw; 400, insulating sleeve; 410, insulating slot; 420, magnetic part; 500, operating part; 510, connecting end; 520, operating end; 600, insulating connecting seat; 610, movable slot; 620, rotating rod; 700, contact rod; 800, installation support frame; 900, on-site bracket angle steel. DETAILED DESCRIPTION

[0033] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] In the description of the present invention, descriptions of directions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0035] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without inventive effort are all within the scope of protection of the present invention. The various technical features of the present invention may be combined interchangeably as long as they do not conflict with each other.

[0038] Reference Figures 1 to 8 The embodiment of the utility model proposes a quick-plug device, which is pre-installed in the circuit, has good safety performance, and can solve the problem of inconvenient operation of existing cable access devices. During the process of upgrading and renovating power lines or troubleshooting, it can ensure the power supply needs of nearby residents and improve construction efficiency.

[0039] The quick-connect device of this embodiment includes a conductive connection seat 100 , a conductive column 200 , a post insulator 300 , an insulating hand guard, and a fixing structure.

[0040] The conductive connection base 100 can provide an installation location for other components. The lower end of the conductive column 200 is connected to the conductive connection base 100 , and the upper end of the support insulator 300 is connected to the conductive connection base 100 .

[0041] It can be understood that the conductive column 200 and the conductive connection seat 100 are both made of conductive materials. During use, the support insulator 300 is connected to the high-voltage power pole, and the power supply connector of the power supply equipment is connected to the conductive column 200 to achieve quick access, and the power supply equipment and the high-voltage power pole are connected.

[0042] It can be understood that the extension direction of the post insulator 300 is consistent with the extension direction of the conductive column 200. In this embodiment, both are extended in the up-down direction, which is more conducive to on-site construction operations.

[0043] In this embodiment, the insulating hand guard includes an insulating sleeve 400 , an insulating connecting seat 600 and an operating member 500 .

[0044] Among them, the insulating connecting seat 600 is installed on the upper surface of the conductive connecting seat 100, and the insulating connecting seat 600 is provided with a movable groove 610. The operating member 500 is hinged to the groove wall of the movable groove 610. One end of the operating member 500 is the operating end 520, and the other end is the connecting end 510. The hinge point between the operating member 500 and the insulating connecting seat 600 is located between the operating end 520 and the connecting end 510. The construction personnel pull the operating end 520 to allow the operating member 500 to rotate around the hinge point between it and the insulating connecting seat 600.

[0045] In this embodiment, the insulating hand guard also includes a rotating rod 620, the two ends of which extend along the front-to-back direction. The rotating rod 620 is arranged in the movable groove 610, and the front and rear ends of the rotating rod 620 are respectively connected to the front and rear side walls of the movable groove 610.

[0046] It can be understood that the operating member 500 is rotatably connected to the rotating rod 620 to achieve an articulated connection with the insulating connecting seat 600. The position of the rotating rod 620 is the hinge point between the operating member 500 and the insulating connecting seat 600. The construction personnel pull the operating end 520, and the operating member 500 rotates around the rotating rod 620.

[0047] In this embodiment, the insulating sleeve 400 is connected to the connecting end 510 , and an insulating slot 410 is provided on the insulating sleeve 400 . The insulating slot 410 is opened toward the conductive column 200 . When the operating member 500 rotates around the rotating rod 620 , the conductive column 200 enters and exits the insulating slot 410 .

[0048] Specifically, when the operating member 500 is rotated to the vertical position, the conductive column 200 enters the insulating groove 410, that is, the insulating sleeve 400 is covered on the outside of the conductive column 200. At this time, the insulating sleeve 400 can provide protection for the conductive column 200. This state is referred to as the first state. Figure 1 shown.

[0049] When the operating member 500 rotates to the position where the conductive pillar 200 escapes from the insulating groove 410, this state is referred to as the second state. Figure 2 As shown, construction workers can connect the power supply connector of the power supply equipment to the conductive column 200. When the two ends of the cable line construction section to be constructed in the overhead line are conductively connected to the power supply connector of the power supply equipment through the quick-connect device of this embodiment, current flows through the bypass cable line formed by the power supply equipment, so that both ends of the construction section maintain power supply during the construction process, achieving non-stop construction work and ensuring the electricity needs of nearby residents. No current flows through the construction section, ensuring the personal safety of construction workers.

[0050] The entire access operation process is convenient and quick. Moreover, during the operation, the construction personnel do not need to touch the conductive column 200 and the conductive connection seat 100 with their hands. The insulating sleeve 400 has an insulating effect, and the operation process is also safer.

[0051] In this embodiment, the quick-insertion device also includes a fixed structure, which is connected to the conductive connection seat 100. When the operating part 500 rotates around the rotating rod 620 to the position where the insulating sleeve 400 contacts the fixed structure, the fixed structure can be connected to the insulating sleeve 400 and the position of the insulating sleeve 400 can be temporarily locked. During the construction process, the rotation of the insulating sleeve 400 and the operating part 500 can be avoided to affect the connection stability between the power supply connector of the power supply equipment and the conductive column 200, thereby further ensuring the safety of the construction process.

[0052] In this embodiment, the operating end 520 is provided with a ring structure, which facilitates operation by construction workers using their hands or insulating tools. By pulling the ring structure, the operating member 500 can be manipulated to rotate, thereby rotating the insulating sleeve 400. The provision of the ring structure can prevent the construction worker's hands or insulating tools from slipping off the operating member 500 during operation, making the construction process more efficient and safer.

[0053] In this embodiment, the insulating sleeve 400 is arranged on the front side of the operating member 500, that is, the conductive column 200 is arranged on the front side of the insulating connecting seat 600. The rotation of the operating member 500 will not be interfered with by the conductive column 200, thereby ensuring that the insulating sleeve 400 and the conductive column 200 can move smoothly relative to each other, and the conductive column 200 can smoothly enter and exit the movable groove 610.

[0054] In some embodiments, the fixed structure is a contact rod 700, which is made of a strong magnetic material, such as iron, iron alloy, ferrite, etc. The insulating hand guard also includes a magnetic part 420, such as a magnet, etc. The magnetic part 420 is installed on the inner wall of the insulating groove 410. When the construction personnel pull the operating end 520 of the operating part 500 to rotate the operating part 500 and allow the insulating sleeve 400 to contact the upper end of the contact rod 700, the insulating sleeve 400 and the upper end of the contact rod 700 are connected under the magnetic attraction of the magnetic part 420, thereby locking the position of the insulating sleeve 400 and preventing the insulating sleeve 400 from rotating during construction.

[0055] Especially in the case where the support insulator 300 is installed horizontally in some high-voltage power line arrangements, the conductive column 200 is also arranged horizontally. When the operating end 520 of the operating member 500 is pulled to rotate the insulating sleeve 400 to a position in contact with the contact rod 700, the magnetic member 420 locks the insulating sleeve 400, thereby preventing the insulating sleeve 400 from reversing under the action of gravity.

[0056] In some embodiments, the outer periphery of the contact rod 700 is provided with an external thread structure, and the conductive connection seat 100 is provided with a first thread. The external thread structure on the contact rod 700 cooperates with the hole wall of the screw hole 140 and is connected through threads.

[0057] With this arrangement, the height of the contact rod 700 extending upward from the upper surface of the conductive connection base 100 can be adjusted, so that the contact rod 700 is within the magnetic attraction range of the magnetic member 420 to achieve a position locking effect on the insulating sleeve 400.

[0058] In some embodiments, the quick-insert device further includes a mounting support frame 800 , which is used to mount the post insulator 300 on a high-voltage utility pole.

[0059] Specifically, the mounting support frame 800 includes a vertical plate and a horizontal plate. The upper end of the vertical plate is connected to the horizontal plate, and the horizontal plate is connected to the lower end of the post insulator 300. A plurality of first mounting holes are provided on the vertical plate.

[0060] The vertical and horizontal plates together form an "L" shape. When installing the quick-connect device, the vertical plate is securely connected to the field support angle steel 900 using bolts, nuts, and other fasteners to securely connect the post insulator 300 to the high-voltage utility pole. In this embodiment, a bolt is inserted through the first mounting hole in the vertical plate and the connection hole in the field support angle steel 900, and then locked with a nut. The nut and bolt head together securely clamp the vertical plate and the field support angle steel 900, thus achieving a stable connection between the post insulator 300 and the high-voltage utility pole.

[0061] In some embodiments, a first screw 310 is provided at the upper end of the post insulator 300. The first screw 310 is inserted through the conductive connection base 100. A first nut is also provided at the upper end of the post insulator 300. The first nut is coupled with the first connecting rod and abuts against the upper surface of the conductive connection base 100. A second screw 320 is provided at the lower end of the post insulator 300. The second screw 320 is inserted through the horizontal plate. A second nut is also provided at the lower end of the post insulator 300. The second nut is coupled with the second screw 320 and abuts against the lower surface of the horizontal plate.

[0062] It can be understood that the first connecting rod extends upward from the conductive connecting seat 100. When in use, the high-voltage cable can be connected to the support insulator 300 through the first connecting rod. The connection between the support insulator 300 and the cable is a conventional electrical connection in the field, and those skilled in the art should be clear about its principle.

[0063] In this embodiment, three first screws 310 are provided, and the three first screws 310 are arranged in the left-right direction, which can further improve the connection stability between the post insulator 300 and the conductive connection seat 100 and provide more power connection space for the cable.

[0064] The post insulator 300 is detachably mounted on the horizontal plate through the second screw 320 and the second nut, and is detachably mounted on the conductive connection seat 100 through the first screw 310 and the first nut. Construction personnel can replace post insulators 300 of different specifications according to actual on-site needs, which is more universal.

[0065] In some embodiments, the conductive connector 100 includes a first connecting plate 110, a second connecting plate 120, and a third connecting plate 130. The conductive posts 200 and the insulating connector 600 are respectively connected to the first connecting plate 110, the post insulator 300 is connected to the second connecting plate 120, and the fixing structure is mounted on the first connecting plate 110.

[0066] In this embodiment, the first connecting plate 110 and the second connecting plate 120 are both arranged horizontally, while the third connecting plate 130 is arranged at an angle, the upper end of the third connecting plate 130 is connected to the first connecting plate 110, and the lower end of the third connecting plate 130 is connected to the second connecting plate 120, that is, the height of the first connecting plate 110 is higher than the height of the second connecting plate 120.

[0067] With this arrangement, the cable connecting the support insulator 300 will not interfere with the connection between the power supply connector of the power supply equipment and the conductive column 200, which is more conducive to the rapid connection between the conductive column 200 and the power supply connector, thereby improving construction efficiency.

[0068] In this embodiment, the angle between the third connecting plate 130 and the first connecting plate 110 is 135°. This arrangement effectively reduces interference between the power cables and the power supply connector, and also facilitates the installation and connection between the first connecting plate 110 and the conductive post 200, and between the second connecting plate 120 and the post insulator 300.

[0069] In some embodiments, the first connecting plate 110 is provided with a plurality of second mounting holes 150. The second mounting holes 150 and the conductive posts 200 are respectively disposed at opposite ends of the length of the first connecting plate 110. It will be appreciated that the provision of the second mounting holes 150 facilitates on-site installation of the conductive connector 100, thereby further improving the stability of the quick-connect device during on-site installation.

[0070] In some embodiments, multiple second mounting holes 150 are provided, and the multiple second mounting holes 150 are arranged along the length of the first connecting plate 110. In this embodiment, there are two second mounting holes 150. In some embodiments, the contact rod 700 is positioned between the second mounting hole 150 and the conductive post 200, which facilitates on-site installation operations and prevents interference with on-site installation operations caused by the contact rod 700.

[0071] In some embodiments, a third screw 210 and a third nut are provided at the lower end of the conductive column 200, and a through hole 160 is provided on the first connecting plate 110 of the conductive connecting seat 100. The third screw 210 passes through the through hole 160 on the first connecting plate 110 and is connected with the third nut. The upper surface of the third nut abuts against the lower surface of the first connecting plate 110.

[0072] With this arrangement, the conductive post 200 can be removed from the conductive connection base 100 to facilitate replacement of the conductive post 200 that matches the power supply connector of the power supply equipment. The quick-plug device can continue to be used during future upgrades of the power supply equipment.

[0073] In some embodiments, the conductive column 200 is provided with a mesh structure 220, which is coated on the outer peripheral wall of the conductive column 200, thereby increasing the friction between the conductive column 200 and the power supply connector, thereby avoiding the separation between the power supply connector and the conductive column 200, and improving the stability of temporary power supply of the power supply equipment.

[0074] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A quick-insert device, characterized in that: include: Conductive connection seat; A conductive column, the lower end of which is connected to the conductive connector; A post insulator, wherein the upper end of the post insulator is connected to the conductive connection seat, and the extension direction of the post insulator is consistent with the extension direction of the conductive post; An insulating hand guard, comprising an insulating sleeve, an operating member, and an insulating connecting seat, wherein the insulating connecting seat is connected to the upper surface of the conductive connecting seat, the insulating connecting seat is provided with a movable groove, the operating member is hinged to the groove wall of the movable groove, the two ends of the operating member are respectively an operating end and a connecting end, the hinge point between the operating member and the insulating connecting seat is located between the operating end and the connecting end, the insulating sleeve is connected to the connecting end, the insulating sleeve is provided with an insulating groove, the insulating groove is opened toward the conductive column, and when the operating member rotates around the insulating connecting seat, the conductive column enters and exits the insulating groove; The fixed structure is connected to the conductive connection seat. When the operating member rotates around the insulating connection seat to a position where the insulating sleeve contacts the fixed structure, the insulating sleeve is connected to the fixed structure.

2. The quick-connect device according to claim 1, characterized in that: The quick-insertion device also includes: The mounting support frame includes a vertical plate and a horizontal plate. The upper end of the vertical plate is connected to the horizontal plate, and the horizontal plate is connected to the lower end of the support insulator. The vertical plate is provided with a plurality of first mounting holes.

3. The quick-connect device according to claim 2, characterized in that: The upper end of the post insulator is provided with a first screw and a first nut, and the lower end of the post insulator is provided with a second screw and a second nut, the first screw is passed through the conductive connection seat, the first nut is cooperated with the first screw and is connected to the upper surface of the conductive connection seat, the second screw is passed through the horizontal plate, the second nut is cooperated with the second screw and is connected to the lower surface of the horizontal plate.

4. The quick-connect device according to claim 1, wherein: The conductive connecting seat includes a first connecting plate, a second connecting plate and a third connecting plate. The first connecting plate and the second connecting plate are both arranged horizontally. The conductive column and the insulating connecting seat are respectively connected to the first connecting plate, the support insulator is connected to the second connecting plate, and the third connecting plate is arranged obliquely. The upper end of the third connecting plate is connected to the first connecting plate, and the lower end of the third connecting plate is connected to the second connecting plate.

5. The quick-connect device according to claim 4, characterized in that: The included angle between the third connecting plate and the first connecting plate is 135°.

6. The quick-connect device according to claim 4, characterized in that: The first connecting plate is provided with a second mounting hole, and the second mounting hole and the conductive column are respectively located at two ends of the first connecting plate along the length direction.

7. The quick-connect device according to claim 1, wherein: The fixed structure is a contact rod, which is made of ferromagnetic material. The insulating hand guard also includes a magnetic part, which is connected to the inner wall of the insulating groove. When the operating part rotates around the hinge point with the insulating connection seat to the position where the insulating sleeve contacts the contact rod, the insulating sleeve and the contact rod are magnetically connected through the magnetic part.

8. The quick-connect device according to claim 7, characterized in that: The conductive connection seat is provided with a screw hole, and the outer periphery of the contact rod is provided with an external thread structure, and the external thread structure is matched and connected with the screw hole.

9. The quick-connect device according to claim 1, wherein: A third screw and a third nut are provided at the lower end of the conductive column, and a through hole is provided in the conductive connection seat. The third screw passes through the through hole and is connected with the third nut, and the third nut abuts against the lower surface of the conductive connection seat.

10. The quick-connect device according to claim 1, characterized in that: The conductive column is provided with a mesh structure, and the mesh structure is coated on the outer peripheral wall surface of the conductive column.

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