Protection structure of high-voltage insulation switch

Abstract

The utility model provides a protection structure of a high-voltage insulation switch, which relates to the technical field of high-voltage insulation switches and comprises a fixed base, two mounting arc seats are arranged at the top of the fixed base, a mounting groove is formed in the center of the top of the fixed base, and an outer insulation shell is mounted between the two mounting arc seats. An arc extinguish chamber is arranged in the outer insulation shell, a conducting rod is arranged in the arc extinguish chamber, a movable block is installed on the conducting rod, neodymium iron boron permanent magnets are installed above and below the movable block, through the design of the neodymium iron boron permanent magnets and the manual-automatic integrated inserting mechanism, the neodymium iron boron permanent magnets are installed above and below the conducting rod in the arc extinguish chamber, and the manual-automatic integrated inserting mechanism is installed above and below the conducting rod in the arc extinguish chamber. When the switch cuts off a circuit and generates an electric arc, charged particles in the electric arc can rapidly move and stretch along a preset direction under the action of Lorentz force based on the strong magnetic field characteristic of the permanent magnet, so that the contact area and time of the electric arc and an arc extinguishing medium are greatly increased, and the electric arc can be extinguished in a shorter time.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure insulation switch technical field especially relates to a protection structure of high pressure insulation switch. BACKGROUND

[0002] High voltage insulation switch is rated voltage three thousand volts and above mainly used for breaking and closing electric circuit of electric appliance, high voltage switch manufacturing industry industry total output value increases year by year, and the same growth rate is all above ten percent, and the industry maintains the development speed of relatively fast.

[0003] According to the protection structure of high voltage insulation switch disclosed by Chinese patent document (authorized announcement number: CN210349666U), the linear motor is fixedly installed at the bottom of the inner cavity of the equipment base, and the output end of the linear motor is fixedly installed with a slider penetrating through one end and extending to the outside of the equipment base and being movably connected with the equipment base. The protection structure of the high voltage insulation switch, by setting a temperature sensor in the insulation sleeve, when the temperature around the high voltage switch is high, the temperature sensor will react, when the temperature exceeds a certain value, the temperature sensor will give an early warning and touch the switch of the electric push rod, so that the electric push rod is started, and the output end of the electric push rod drives the movable block to move up and down through the limiting plate, when the movable block moves down and is separated from the conducting rod, the left and right two conducting rods will be disconnected, so that the circuit is disconnected, avoiding the high voltage switch from being burned out due to high temperature continuous work, so that the equipment achieves the effect of high safety performance.

[0004] However, the above scheme still has the following deficiencies when implemented:

[0005] Although the high voltage insulation switch protection structure can realize overheating protection to a certain extent through temperature monitoring, there are obvious deficiencies in arc extinguishing and connection reliability. If the electric arc generated when the switch cuts off the circuit cannot be extinguished quickly, it will cause serious erosion to the contacts, insulation parts and other parts of the switch, greatly shorten the service life of the equipment, and even may cause disastrous accidents such as phase-to-phase short circuit, and at the same time, its connector depends on electric plug-in, once encountering electric failure or power failure scene, it cannot be operated flexibly, which seriously affects the emergency repair and maintenance efficiency of power system.

[0006] Therefore, we propose a protection structure of high voltage insulation switch. Utility model content

[0007] The utility model discloses a high pressure insulation switch protection structure, including fixed base, the top of fixed base is equipped with two installation arc -shaped seat, the top of fixed base is equipped with the installation slot in the center, two installation arc -shaped seat between installation outer insulation casing, the inside of outer insulation casing is equipped with arc extinguishing chamber, the inside of arc extinguishing chamber is equipped with conducting rod, the movable block is installed on conducting rod, the upper and lower of movable block all install neodymium iron boron permanent magnet.

[0008] In order to realize above-mentioned purpose, the utility model adopts the following technical scheme:

[0009] A protection structure of high voltage insulation switch, including fixed base, the top of fixed base is equipped with two installation arc -shaped seat, the top of fixed base is equipped with the installation slot in the center, two installation arc -shaped seat between installation outer insulation casing, the inside of outer insulation casing is equipped with arc extinguishing chamber, the inside of arc extinguishing chamber is equipped with conducting rod, the movable block is installed on conducting rod, the upper and lower of movable block all install neodymium iron boron permanent magnet.

[0010] The left side of the top of fixed base is also equipped with hand -self -contained plug -in mechanism, the hand -self -contained plug -in mechanism includes screw rod, the input end of screw rod is installed with drive motor, the junction of screw rod is equipped with sliding connection seat, the top of sliding connection seat is equipped with connecting block, the top of connecting block is equipped with connecting plate, the junction of connecting plate is installed with connecting piece, the right side of connecting piece is equipped with limit plate, the right side of limit plate is equipped with plug -in head, the left side of connecting piece is also installed with triangular sliding seat, the outside of triangular sliding seat is installed with three straight line limit light axes, two sides of three straight line limit light axes are respectively equipped with second arc -shaped fixed seat and first arc -shaped fixed seat, the left side of triangular sliding seat is also installed with push rod.

[0011] As the preferred scheme of the utility model, the right side of the conducting rod and outside the outer insulation casing is also installed with a connecting port, the left side of the conducting rod is also equipped with a plug-in port, the junction of the movable block is also equipped with an electric push rod, and the electric push rod is fixed between the mounting shell and the outer insulation casing.

[0012] As the preferred scheme of the utility model, the plug-in head is plugged into the plug-in port for use, and the diameter of the limit plate is greater than the diameter of the outer insulation casing, thereby forming a limit barrier.

[0013] As the preferred scheme of the utility model, the drive motor is used to drive the screw rod to rotate, the sliding connection seat and the screw rod are threadedly connected, and the connecting block and the sliding connection seat are fixedly connected.

[0014] As the preferred scheme of the utility model, the connecting plate is fixedly connected with the connecting block, the connecting block is connected and fixed with the sliding connecting seat through a plurality of bolts, and then detachable is realized, the connecting plate is fixedly connected with the connecting piece, and the connecting piece is fixedly connected with the limiting plate.

[0015] As the preferred scheme of the utility model, the triangular sliding seat is fixedly connected with the connecting piece, the push rod is fixedly connected with the triangular sliding seat, the three straight line limiting light shafts are fixed between the second arc-shaped fixed seat and the first arc-shaped fixed seat, the triangular sliding seat is slidingly connected with the three straight line limiting light shafts, the second arc-shaped fixed seat is installed on the left side wall of the fixed base, and the first arc-shaped fixed seat is installed on the top of the outer insulating shell.

[0016] As the preferred scheme of the utility model, the material of the push rod is rubber, and the outer surface of the neodymium-iron-boron permanent magnet is coated with an ultrathin ceramic thermal insulation layer.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] In the utility model, the neodymium-iron-boron permanent magnet and the hand-automatic integrated plug-in mechanism are designed, the neodymium-iron-boron permanent magnet is installed on the upper and lower conductive rods in the arc extinguishing chamber, when the switch cuts off the circuit to generate an arc, based on the powerful magnetic field characteristics of the permanent magnet, the charged particles in the arc will rapidly move and lengthen along the preset direction under the action of the Lorentz force, greatly increasing the contact area and time of the arc and the arc extinguishing medium, so that the arc can be extinguished in a shorter time, effectively reducing the erosion of the arc on the contact and the insulating parts, significantly prolonging the service life of the equipment, reducing the risk of phase-to-phase short circuit and other accidents, and ensuring the stable operation of the power system.

[0019] The driving motor of the hand-automatic integrated plug-in mechanism drives the screw rod to rotate, drives the sliding connecting seat, the connecting block, the connecting plate, the connecting piece and the plug-in head to move cooperatively, realizes the quick automatic plug-in of the plug-in head and the plug-in port, is convenient and efficient to operate, saves the labor and time cost, meets the daily quick installation and maintenance demand of the power system, when an emergency such as electric fault or power failure occurs, the operator can manually push the push rod, the plug-in head is stably separated from the plug-in port by means of the clever cooperation of the triangular sliding seat and the straight line limiting light shaft, the whole process is flexible and reliable, does not need to rely on power driving, effectively solves the problem that the traditional electric plug-in connector cannot be operated under the sudden condition, greatly improves the emergency repair efficiency of the power system, and ensures the timeliness of power supply. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model provides a kind of main body structure schematic diagram of the protection structure of high-voltage insulating switch.

[0021] Figure 2 A hand-automatic plug-in mechanism main body schematic view of the protection structure of the high-voltage insulation switch is provided in the utility model.

[0022] Figure 3 A main body front view sectional view schematic view of the protection structure of the high-voltage insulation switch is provided in the utility model.

[0023] Figure 4 A top view sectional view schematic view of the protection structure of the high-voltage insulation switch is provided in the utility model.

[0024] Legend: 1, fixed base; 2, installation arc-shaped seat; 3, outer insulation shell; 4, arc extinguishing chamber; 5, conductive rod; 6, connecting port; 7, movable block; 8, electric push rod; 9, neodymium iron boron permanent magnet; 10, plug-in port; 11, plug; 12, limiting plate; 13, connecting piece; 14, connecting plate; 15, installation groove; 16, driving motor; 17, screw rod; 18, sliding connection seat; 19, connecting block; 20, triangular sliding seat; 21, first arc-shaped fixed seat; 22, second arc-shaped fixed seat; 23, straight limiting optical shaft; 24, push rod. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, and all the other embodiments obtained by the person skilled in the art without creative labor based on the embodiments in the utility model belong to the protection scope of the utility model.

[0026] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below in conjunction with the related utility model, and several embodiments of the utility model are given, however, the utility model can be realized in many different forms, and is not limited to the embodiments described in the text, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intervening element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intervening element, and the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs, the terms used herein in the specification expressly set forth below specify the purpose of describing specific embodiments and are not intended to limit the application, the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] Embodiment

[0030] As Figures 1-4 The utility model provides a technical scheme: fixed base 1 as the basic support part of whole protection structure, plays the key role of bearing other components, it adopts high strength metal material, has good stability and compression resistance, can be stably placed whole high voltage insulation switch device under complex working environment, such as transformer substation place.

[0031] Its top designs two installation arc shape seat 2, the radian of these two arc shape seats is accurately calculated, and the shape of outer insulation shell 3 is perfectly adapted, ensures that outer insulation shell 3 does not appear to shake or shift after installation, guarantees the compactness of overall structure.

[0032] At the center of fixed base 1 top, set up an installation groove 15, the size and depth of this installation groove 15 are also determined according to the installation demand of internal component, is used to accommodate some auxiliary fixed parts or wiring channel, provides the convenient condition for the regular laying of internal line.

[0033] Outer insulation shell 3 selects high-quality insulation material, such as high-strength ceramic or special rubber composite material, this material not only has very high insulation performance, can effectively block high-voltage current leakage, guarantee the personal safety of operating personnel, and has certain weather resistance, can resist wind, sun, rain and other erosion in outdoor harsh environment.

[0034] Its inside is closely placed arc extinguishing chamber 4, arc extinguishing chamber 4 is one of the core functional areas of whole high voltage insulation switch, and the conductive rod 5 is as the key path of current transmission, adopts high-conductivity metal material, such as copper alloy, to ensure that the current can pass smoothly, reduces energy loss.

[0035] The right side of conductive rod 5 and the outside of outer insulation shell 3 are also provided with a connecting port 6.

[0036] The movable block 7 is accurately installed on the conductive rod 5, the movable block 7 can move flexibly on the conductive rod 5, and the accuracy of movement is crucial for subsequent switch operation, and the neodymium-iron-boron permanent magnet 9 is installed above and below the movable block 7, the neodymium-iron-boron permanent magnet 9 is famous for its super strong magnetism, compared with the traditional permanent magnet, it can generate a stronger magnetic field, and provides strong support for arc control.

[0037] The screw rod 17 is made of high-strength alloy steel and serves as the transmission core of the manual-automated plug-in mechanism, has good rigidity and wear resistance, and is provided with the driving motor 16 at the input end. The driving motor 16 is selected from a motor type with high efficiency and accurate control of the rotating speed, and can accurately drive the screw rod 17 to rotate according to different operation requirements.

[0038] The connecting portion of the screw rod 17 is provided with the sliding connecting seat 18, the thread inside the sliding connecting seat 18 is tightly engaged with the screw rod 17, and when the screw rod 17 rotates, the sliding connecting seat 18 can stably slide along the axial direction of the screw rod 17. This threaded connection mode ensures the accuracy and reliability of the movement.

[0039] The top of the sliding connecting seat 18 is firmly provided with the connecting block 19, which plays a role of connecting the front and the back and transmits the movement of the sliding connecting seat 18 to the connecting plate 14 above. The connecting plate 14 is fixedly connected with the connecting block 19 through high-strength bolts, ensuring the stability of the connection, and can be conveniently disassembled when maintenance or replacement of parts is required. The connecting plate 14 is provided with the connecting piece 13 at the connecting portion, the connecting piece 13 organically integrates various components together, the right side of the connecting piece 13 is provided with the limiting plate 12, and the diameter of the limiting plate 12 is greater than the diameter of the outer insulating shell 3. This design can effectively prevent the plug-in connector 11 from being excessively inserted during the plug-in process, avoid damage to the internal components, and also play a role of positioning and blocking, ensuring the accuracy of the plug-in.

[0040] The right side of the limiting plate 12 is provided with the plug-in connector 11, the end portion of the plug-in connector 11 is made of a special conductive alloy material, which can ensure good conductivity and has a certain wear resistance, and is suitable for multiple plug-in and pull-out operations. The left side of the connecting piece 13 is also provided with the triangular sliding seat 20, and the triangular sliding seat 20 is cleverly designed in shape and is fixedly connected with the connecting piece 13, providing a fulcrum for subsequent manual operation.

[0041] The outer side of the triangular sliding seat 20 is provided with three straight-line limiting light shafts 23, the straight-line limiting light shafts 23 are made of high-precision smooth metal rods, the surface is treated in a special way, the friction is extremely small, the triangular sliding seat 20 can stably slide on the straight-line limiting light shafts 23, and the movement direction of the triangular sliding seat 20 can be accurately limited, so that the triangular sliding seat 20 can only move along the predetermined straight-line direction.

[0042] The two sides of the straight line limiting light axis 23 are respectively provided with a second arc-shaped fixing seat 22 and a first arc-shaped fixing seat 21. The second arc-shaped fixing seat 22 is installed on the left side wall of the fixed base 1, and provides bottom support and positioning for the straight line limiting light axis 23. The first arc-shaped fixing seat 21 is installed on the top of the outer insulation shell 3, and fixes the straight line limiting light axis 23 from above. The two cooperate to ensure the stable installation of the straight line limiting light axis 23, thereby ensuring the reliability of the movement of the triangular sliding seat 20.

[0043] The left side of the triangular sliding seat 20 is also provided with a push rod 24. The material of the push rod 24 is rubber. The rubber material has certain flexibility and friction. When the operator manually pushes, the hand feeling is comfortable, and at the same time, it can also avoid hard collision damage to other components due to improper operation.

[0044] Arc extinguishing principle: When the electric push rod 8 drives the movable block 7 to cut off the circuit, it is inevitable to produce an arc. At this time, the arc extinguishing medium in the arc extinguishing chamber 4 first plays a role. It can absorb part of the heat generated by the arc, reduce the temperature of the arc, and inhibit the further expansion of the arc. The Nd-Fe-B permanent magnet 9 installed on the movable block 7 and the conductive rod 5 becomes the key factor of arc control. Based on the strong magnetic field characteristics of the permanent magnet, the charged particles in the arc will move and elongate along the preset direction under the action of the Lorentz force. Since the arc is elongated, its contact area with the arc extinguishing medium is greatly increased, and the contact time is also correspondingly extended, so that the arc extinguishing medium can more fully absorb the arc energy, so that the arc can be extinguished in a shorter time. Compared with the traditional method of relying only on arc extinguishing medium, the arc extinguishing efficiency is greatly improved, and the erosion of the arc to the contact and insulation components is effectively reduced.

[0045] During the frequent opening and closing of the circuit, if the contact is subjected to long-term burning of the arc, surface ablation, oxidation and other problems will occur, which will increase the contact resistance and affect the conductivity. Efficient arc extinguishing can significantly reduce such damage and prolong the service life of the contact. At the same time, if the insulation component is affected by the arc for a long time, its insulation performance will gradually decrease, causing serious accidents such as interphase short circuit. By extinguishing the arc in time, the stable operation of the power system can be ensured.

[0046] The automatic plug-in principle is as follows: the automatic plug-in process, the driving motor 16 drives the screw rod 17 to rotate, and the sliding connection seat 18 and the screw rod 17 are connected by threads. According to the thread transmission principle, the rotary motion of the screw rod 17 is converted into the linear motion of the sliding connection seat 18. The sliding connection seat 18 drives the connection block 19 fixedly connected thereto to move, and the connection block 19 further transmits the motion to the connecting plate 14. The connecting plate 14 further drives the connecting piece 13 and the plug-in connector 11 to move cooperatively, so as to realize the rapid automatic plug-in of the plug-in connector 11 and the plug-in port 10. In the whole process, the fixed connection of each connection part ensures the consistency and accuracy of the motion. The accurate control of the motor makes the plug-in operation convenient and efficient, saves labor and time cost, and meets the daily rapid installation and maintenance requirements of the power system.

[0047] The manual operation principle is as follows: when an emergency such as a motor failure or power failure occurs, the sliding connection seat 18 and the connection block 19 need to be separated first. Only the bolts need to be removed. Then the operator can manually push the push rod 24. The push rod 24 drives the triangular sliding seat 20 to move. Since the triangular sliding seat 20 is connected with the three straight limiting light shafts 23 by sliding, and the straight limiting light shafts 23 are stably fixed by the second arc-shaped fixed seat 22 and the first arc-shaped fixed seat 21, the triangular sliding seat 20 can only move smoothly along the straight line defined by the straight limiting light shafts 23. The movement of the triangular sliding seat 20 drives the connecting piece 13 and the plug-in connector 11 to stably separate from the plug-in port 10. The whole process is flexible and reliable, and does not need to rely on power drive. It effectively solves the problem that the traditional electric plug-in connector cannot be operated in an emergency. It greatly improves the efficiency of emergency repair of the power system and ensures the timeliness of power supply.

[0048] The working process is as follows:

[0049] The installation process is as follows: first, place the fixed base 1 at the predetermined working position to ensure that it is horizontal and stable. It can be fixed by means of foundation bolts and the like. Then, install the outer insulation shell 3 between the two installation arc-shaped seats 2 at the top of the fixed base 1 so that it is tightly fitted. Check whether the installation position of the outer insulation shell 3 is accurate and whether it is loose. Then, install the arc-extinguishing chamber 4 in the outer insulation shell 3 to ensure that the connection between the arc-extinguishing chamber 4 and the outer insulation shell 3 is tight and that the internal components are not loose.

[0050] Afterwards, the conductive rod 5 is installed in the arc extinguishing chamber 4, and the movable block 7 and the Nd-Fe-B permanent magnet 9 thereon are installed on the conductive rod 5, the position of the movable block 7 is adjusted to a suitable state, finally, the manual-automatic plug-in mechanism is installed, the lead screw 17 is installed on the fixed base 1, the driving motor 16 is connected, the sliding connection seat 18, the connecting block 19, the connecting plate 14, the connecting piece 13, the limiting plate 12, the plug-in head 11, the triangular sliding seat 20, the straight limiting light axis 23, the second arc-shaped fixed seat 22 and the first arc-shaped fixed seat 21 are sequentially installed, and it is ensured that each component is connected firmly and moves smoothly.

[0051] In the normal operation process, in the normal power supply process of the power system, the high-voltage insulation switch is in a closed state, and the current is transmitted through the conductive rod 5, when it is necessary to cut off the circuit, the control system sends a command to start the driving motor 16 (if it is a manually operated switch, the operator manually pulls the switch mechanism), drives the lead screw 17 to rotate, and makes the plug-in head 11 pulled out of the plug-in port 10 to cut off the current path, at this time, if an arc is generated, the arc extinguishing medium in the arc extinguishing chamber 4 and the Nd-Fe-B permanent magnet 9 cooperate to quickly extinguish the arc, when it is necessary to close the circuit again, the driving motor 16 is reversed (or the manually operated switch mechanism is reversely pulled manually), the plug-in head 11 is inserted into the plug-in port 10, and the current path is restored.

[0052] In the emergency treatment process, when the driving motor 16 cannot be used to operate the plug-in head 11 due to power failure or other sudden situations, the operator quickly arrives at the scene, manually pushes the push rod 24, moves the triangular sliding seat 20 along the straight limiting light axis 23, drives the plug-in head 11 to separate from the plug-in port 10, and completes the emergency power-off operation, after the fault is eliminated, if it is necessary to restore power supply, the operator manually pushes the push rod 24 to move reversely, so that the plug-in head 11 is inserted into the plug-in port 10, and the circuit connection is restored, the whole emergency treatment process requires the operator to be familiar with the manual operation process, and the operation is rapid and accurate, so as to ensure that the power system can be restored to normal operation as soon as possible.

[0053] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A protection structure of a high-voltage insulating switch, comprising a fixed base (1), characterized in that: The top of the fixed base (1) is provided with two mounting arc-shaped seats (2), the center of the top of the fixed base (1) is provided with a mounting groove (15), the outer insulation shell (3) is mounted between the two mounting arc-shaped seats (2), the inside of the outer insulation shell (3) is provided with an arc-extinguishing chamber (4), the inside of the arc-extinguishing chamber (4) is provided with a conductive rod (5), the movable block (7) is mounted on the conductive rod (5), the neodymium-iron-boron permanent magnet (9) is mounted above and below the movable block (7); The left side of the top of the fixed base (1) is also provided with a manual-automatic plug-in mechanism, the manual-automatic plug-in mechanism comprises a lead screw (17), the input end of the lead screw (17) is provided with a driving motor (16), the connecting part of the lead screw (17) is provided with a sliding connection seat (18), the top of the sliding connection seat (18) is provided with a connecting block (19), the top of the connecting block (19) is provided with a connecting plate (14), the connecting part of the connecting plate (14) is provided with a connecting piece (13), the right side of the connecting piece (13) is provided with a limiting plate (12), the right side of the limiting plate (12) is provided with a plug-in head (11), the left side of the connecting piece (13) is also provided with a triangular sliding seat (20), the outer side of the triangular sliding seat (20) is provided with three straight line limiting optical shafts (23), the two sides of the three straight line limiting optical shafts (23) are respectively provided with a second arc-shaped fixing seat (22) and a first arc-shaped fixing seat (21), the left side of the triangular sliding seat (20) is also provided with a push rod (24).

2. The protection structure of high-voltage insulating switch according to claim 1, characterized in that: The right side of the conductive rod (5) and outside the outer insulation shell (3) are also provided with a connecting port (6), the left side of the conductive rod (5) is also provided with a plug-in port (10), the connecting part of the movable block (7) is also provided with an electric push rod (8), the electric push rod (8) is fixed between the mounting shell and the outer insulation shell (3).

3. The protective structure of a high-voltage insulating switch according to claim 2, characterized in that: The plug-in head (11) is plugged into the plug-in port (10) for use, the diameter of the limiting plate (12) is greater than the diameter of the outer insulation shell (3), thereby forming a limiting barrier.

4. The protective structure of a high-voltage insulating switch according to claim 3, characterized in that: The driving motor (16) is used for driving the lead screw (17) to rotate, the sliding connection seat (18) and the lead screw (17) are threadedly connected, and the connecting block (19) and the sliding connection seat (18) are fixedly connected.

5. The protective structure of a high-voltage insulating switch according to claim 4, characterized in that: The connecting plate (14) and the connecting block (19) are fixedly connected, the connecting block (19) and the sliding connection seat (18) are connected and fixed through a plurality of bolts, thereby achieving detachability, the connecting plate (14) and the connecting piece (13) are fixedly connected, and the connecting piece (13) and the limiting plate (12) are fixedly connected.

6. The protective structure of a high-voltage insulating switch according to claim 5, characterized in that: The triangular sliding seat (20) is fixedly connected with the connecting piece (13), the push rod (24) is fixedly connected with the triangular sliding seat (20), the three straight line limiting light shafts (23) are fixedly connected with the second arc-shaped fixed seat (22) and the first arc-shaped fixed seat (21), the triangular sliding seat (20) is slidably connected with the three straight line limiting light shafts (23), the second arc-shaped fixed seat (22) is installed on the left side wall of the fixed base (1), and the first arc-shaped fixed seat (21) is installed on the top of the outer insulation shell (3).

7. The protective structure of a high-voltage insulating switch according to claim 6, characterized in that: The material of the push rod (24) is rubber, and the outer surface of the neodymium-iron-boron permanent magnet (9) is coated with an ultrathin ceramic thermal insulation layer.

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