Rapid opening and closing isolating switch based on electromagnetic repulsion principle and application thereof

Abstract

The invention relates to the technical field of disconnecting switch opening and closing, in particular to a quick opening and closing disconnecting switch based on the electromagnetic repulsion principle and application thereof, the quick opening and closing disconnecting switch comprises a fixing frame used for hanging a plurality of pairs of contact seats, a contact blade is hinged to one side of one row of the plurality of contact seats, and a brake adjusting mechanism comprises a rotating shaft and a brake adjusting rod hinged between the contact blade and the rotating shaft; the opening and closing mechanism is used for controlling the transmission rod to swing so as to drive the contact blade and the contact base to be opened and comprises a push rod, an electromagnet used for repelling the transmission belt to move circularly and a reset set used for driving the transmission belt to move back. The magnetic blocks arranged at intervals are matched with the electromagnet, the magnetic blocks are pushed by repulsive force one by one to form relay transmission, the movement distance of the transmission belt is remarkably prolonged, automatic long-stroke opening under low power consumption is achieved, and through the structural design of the transmission belt, the grooved transmission wheel and the coil spring reset set, the coil spring automatically rebounds and resets in the closing process, and the automatic long-stroke opening is achieved. Extra power input is not needed, and continuity and safety of opening and closing are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of disconnector switching, and specifically to a fast-switching disconnector based on the principle of electromagnetic repulsion and its application. Background Technique

[0002] As a key safety device in the power system, the core function of the disconnector is to form a visible break point during maintenance to ensure operation safety. Traditional switching mechanisms mostly rely on mechanical springs or manual operations. For example, a fast-switching disconnector disclosed in patent application number CN202221046760.2 includes a base, a pair of insulators, a left terminal board, a right terminal board, a backing plate, a support bent plate, and a switching mechanism. The switching mechanism includes a knife blade, a pull ring, a locking hook, a compression spring, and a rotating shaft. One end of the knife blade is movably passed through the support bent plate through the rotating shaft. One end of the compression spring is connected to the top of the support bent plate, and the other end is connected to the middle of the knife blade. One end of the pull ring is passed through the middle section of the knife blade, and the other end extends forward to the front end of the knife blade. The locking hook is fixedly arranged at the tail of the pull ring. After the knife blade reaches the dead point position, it can automatically reach the switching position to quickly complete the switching by the energy release of the compression spring, without the need to be fully pushed in place, and the operation is easier to control, which can effectively meet the use requirements.

[0003] The above patent uses the energy release of the compression spring to achieve fast action. Although the operation is simplified, there are still problems such as relying on manual intervention, the spring is prone to fatigue failure, and a greater driving force is required for long-distance switching. Especially in high-voltage scenarios, the requirements for fast automatic switching and high reliability are becoming increasingly prominent. Therefore, there is an urgent need for a disconnector based on a new driving principle, such as achieving efficient and long-stroke switching through electromagnetic control, while reducing energy consumption and improving safety. Summary of the Invention

[0004] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a fast-switching disconnector based on the principle of electromagnetic repulsion and its application. The present invention proposes a fast-switching scheme based on electromagnetic repulsion, which drives the transmission belt through the cooperation of an electromagnet and multiple magnetic blocks, and combines a reset mechanism to achieve automatic switching, so as to solve the problems of relying on manual operation and long-stroke switching mentioned in the above background technique.

[0005] To achieve the above purpose, the present invention provides a fast-switching disconnector based on the principle of electromagnetic repulsion, including a fixed frame for hanging several pairs of contact seats. One side of a row of several contact seats is hinged with a contact blade, including a switching adjustment mechanism for driving several contact blades to be correspondingly clamped with another row of several contact seats. The switching adjustment mechanism includes a rotating shaft passing through the fixed frame, a switching adjustment rod hinged between the contact blade and the rotating shaft, and a transmission rod perpendicularly and fixedly connected to the outer end of the rotating shaft.

[0006] A closing and opening mechanism is used to control the swing of a transmission rod to drive the contact blade to separate from the contact seat. The closing and opening mechanism includes a push rod movably connected to the lower end of the transmission rod, a fixed box slidably connected to the bottom of the push rod, a transmission belt sleeved inside the fixed box, an electromagnet for repelling the cyclic movement of the transmission belt, and a reset group for driving the transmission belt to move back.

[0007] The bottom end of the push rod is fixedly connected to the transmission belt in a clamping manner. A plurality of magnetic blocks are equidistantly sleeved on a section of the transmission belt. The electromagnet is embedded in the upper half of one end of the fixed box and faces the upper turning point of the transmission belt, used to repel the magnetic blocks to drive the movement of the transmission belt. The reset group is composed of a torsion spring and a cover coaxially sleeved, and this axis is coaxially connected to another turning point of the transmission belt, used to rebound the transmission belt to move back.

[0008] The above settings achieve efficient and long-stroke closing and opening through electromagnetic control to solve the problems of relying on manual intervention, easy fatigue failure of springs, and the need for greater driving force for long-distance opening. The whole process of closing and opening is automatically completed without manual intervention, combining efficiency and safety.

[0009] As a further improvement of this technical solution, a slider is embedded at the bottom end of the push rod. A clamping groove is opened on the side surface of the slider and penetrates to the bottom surface of the slider. The clamping groove is clamped with the transmission belt. Clamping blocks are arranged on both sides of the transmission belt and located on both sides of the slider, used to clamp the push rod.

[0010] As a further improvement of this technical solution, a sliding groove is opened on the top surface of the fixed box. The top of the slider is narrower than its bottom, and both sides of the top of the slider are adaptively inserted and slid in the sliding groove.

[0011] The above settings ensure the horizontal stable movement of the push rod, transmit the deflection force to the closing and opening mechanism, and then transmit it to the contact blade to separate and close with the contact seat.

[0012] As a further improvement of this technical solution, a swinging groove in the shape of a waist-shaped hole is opened on the front side wall of the outer end of the transmission rod. A guiding groove in the shape of a waist-shaped hole is opened on the front side of the push rod. A connecting pin is inserted at the overlapping part of the swinging groove and the guiding groove.

[0013] As a further improvement of this technical solution, avoiding grooves are opened on the left and right side walls of the push rod. The transmission rod is slidably clamped in the avoiding grooves.

[0014] The above settings convert the linear motion of the push rod into the circumferential deflection of the transmission rod through the linkage design of the swinging groove, the guiding groove and the avoiding grooves, eliminate the movement interference, and cooperate with the limiting sliding groove to stabilize the trajectory of the push rod, significantly improving the accuracy and mechanical stability of the closing and opening actions of the contact blade.

[0015] As a further improvement of the technical solution, a communication sleeve is communicatively provided at the top of one end of the fixed box. The electromagnet is inserted and fitted with the communication sleeve. A magnetic isolation sheet is embedded at the bottom surface of the inner end of the communication sleeve, and the upper end of the magnetic isolation sheet extends below the iron core of the electromagnet.

[0016] This setting designs the magnetic isolation sheet to directionally shield the magnetic field, ensuring that only the upper-layer magnetic blocks on the conveyor belt are dominated by the repulsive force for driving, and when the lower-layer magnetic blocks on the conveyor belt enter the area of the electromagnet, they drive by relay to form continuous power.

[0017] As a further improvement of the technical solution, transmission wheels are rotatably connected at both ends inside the fixed box through pin shafts. A belt groove is opened at the middle line of the outer arc surface of the transmission wheel. The conveyor belt is adaptively clamped with the belt groove. A plurality of clamping grooves are annularly and equidistantly opened on the side end surface of the transmission wheel, and a plurality of the magnetic blocks are correspondingly engaged with the plurality of clamping grooves.

[0018] This setting enables the magnetic blocks and the clamping grooves to be smoothly engaged like gears and racks to stably complete the transmission.

[0019] As a further improvement of the technical solution, the clamping groove penetrates through the other side end surface of the transmission wheel and is communicated with the belt groove. The magnetic block has a trapezoidal structure with the narrow end pointing to the transmission wheel. The opening of the clamping groove is larger than the width of its inner end. A square positioning hole is opened at the central axis of the transmission wheel far from the electromagnet, and the central axis of the coil spring is adaptively inserted into the positioning hole.

[0020] This setting enables the transmission wheel and the coil spring to rotate synchronously. The coil spring is tightened by the rotation of the transmission wheel, and then the transmission wheel is driven to rotate back by the release of the resilience of the coil spring, thereby completing the reciprocating movement of opening and closing.

[0021] As a further improvement of the technical solution, a turntable is sleeved at the outer end of the rotating shaft. The upper end of the transmission rod is fixedly connected to the turntable. A plurality of connecting rods are embedded on the side wall of the rotating shaft, and the lower end of the connecting rod is rotatably connected to the upper end of the switch adjusting rod.

[0022] The present invention also provides an application of rapid opening and closing based on the principle of electromagnetic repulsion, which is applied in the above-mentioned rapid opening and closing disconnecting switch based on the principle of electromagnetic repulsion.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. For the rapid opening and closing disconnecting switch based on the principle of electromagnetic repulsion and its application, by arranging the magnetic blocks and the electromagnet in an interval arrangement and using the magnetic blocks to be pushed by the repulsive force one by one to form relay transmission, the movement distance of the conveyor belt is significantly extended, and the high current required for the repulsion of a single magnetic block is avoided, so as to realize the automatic long-stroke opening under low power consumption, and improve the energy efficiency ratio and system reliability.

[0025] 2. The quick-opening and -closing disconnecting switch based on the electromagnetic repulsion principle and its application achieve the closed-loop control of the opening and closing actions through the structural design of the transmission belt, the grooved driving wheel, and the spring return group. When opening, the electromagnetic repulsion drives the transmission belt to drive the push rod to move. When closing, the spring automatically rebounds and resets, without the need for additional power input, simplifying the structure while ensuring the coherence and safety of the opening and closing operations.

[0026] 3. The quick-opening and -closing disconnecting switch based on the electromagnetic repulsion principle and its application, through the linkage design of the swing groove, the guiding groove, and the avoidance groove, efficiently convert the linear motion of the push rod into the circular deflection of the transmission rod, eliminate the motion interference, and cooperate with the limiting sliding groove to stabilize the trajectory of the push rod, significantly improving the accuracy and mechanical stability of the opening and closing actions of the contact blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure of the present invention in any way. Additionally, the shapes and scale dimensions of the components in the drawings are only schematic and are used to assist in the understanding of the present invention, rather than specifically defining the shapes and scale dimensions of the components of the present invention. Those skilled in the art can, under the teaching of the present invention, select various possible shapes and scale dimensions according to specific circumstances to implement the present invention.

[0028] Figure 1 It is a schematic assembly structure diagram of the opening state of the present invention;

[0029] Figure 2 For the present invention Figure 1 front view;

[0030] Figure 3 It is a schematic assembly structure diagram of the closing state of the present invention;

[0031] Figure 4 For the present invention Figure 3 front view;

[0032] Figure 5 It is one of the partial exploded views of the adjusting mechanism of the present invention;

[0033] Figure 6 It is the second partial exploded view of the adjusting mechanism of the present invention;

[0034] Figure 7 It is the front view of the internal assembly of the opening and closing mechanism of the present invention;

[0035] Figure 8 It is a schematic structure diagram of the fixed box of the present invention;

[0036] Figure 9 It is a schematic internal assembly structure diagram of the opening and closing mechanism of the present invention;

[0037] Figure 10Exploded view of the separating and combining mechanism of the present invention;

[0038] Figure 11 Schematic diagram of the push rod structure of the present invention;

[0039] 100, fixed frame; 110, contact seat; 120, contact blade;

[0040] 200, brake adjusting mechanism; 210, rotating shaft; 211, turntable; 212, connecting rod; 220, brake adjusting rod; 230, transmission rod; 231, swinging groove;

[0041] 300, separating and combining mechanism; 310, push rod; 311, slider; 3111, clamping groove; 312, guiding groove; 313, connecting pin; 314, avoiding groove; 320, fixed box; 321, sliding groove; 322, communicating sleeve; 323, magnetic isolation sheet; 330, transmission belt; 331, magnetic block; 332, transmission wheel; 3321, belt groove; 3322, clamping groove; 3323, positioning hole; 333, clamping block; 340, electromagnet; 350, reset group; 351, coil spring; 352, cover. Detailed implementation manners

[0042] Combined with the description of the specific implementation manners of the present invention and the accompanying drawings, the details of the present invention can be more clearly understood. However, the specific implementation manners of the present invention described herein are only for the purpose of explaining the present invention and cannot be understood in any way as a limitation to the present invention. Under the teaching of the present invention, the concepts of those skilled in the art based on any possible deformation of the present invention should all be regarded as belonging to the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which can be directly connected or indirectly connected through an intermediate medium.

[0043] The orientation or positional relationship indicated by the terms "central axis", "vertical", "horizontal", "front", "rear", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. used herein is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise specifically defined.

[0044] Please refer to Figures 1-6As shown in the figure, the present invention provides a quick-opening and -closing disconnecting switch based on the principle of electromagnetic repulsion, which includes a fixing frame 100 for suspending a plurality of pairs of contact seats 110. One side of a row of a plurality of contact seats 110 is hinged with a contact blade 120 for isolating the power supply and disconnecting the high-voltage maintenance equipment from the energized equipment. After opening, a reliable insulation gap is established to separate the equipment or line to be maintained from the power supply with an obvious disconnection point to ensure the safety of maintenance personnel and equipment. This is the prior art and will not be elaborated here.

[0045] It includes a switching mechanism 200 for driving a plurality of contact blades 120 to be correspondingly clamped with another row of a plurality of contact seats 110. Both the contact blade 120 and the contact seat 110 are made of metal for connecting the circuit. The switching mechanism 200 includes a rotating shaft 210 passing through the fixing frame 100, a switching rod 220 hinged between the contact blade 120 and the rotating shaft 210, and a transmission rod 230 fixedly connected perpendicularly to the outer end of the rotating shaft 210.

[0046] A turntable 211 is sleeved on the outer end of the rotating shaft 210. The upper end of the transmission rod 230 is fixedly connected to the turntable 211. A plurality of connecting rods 212 are embedded in the side wall of the rotating shaft 210, and the lower end of the connecting rod 212 is rotatably connected to the upper end of the switching rod 220. By deflecting the transmission rod 230 to drive the rotating shaft 210 to rotate, and lifting the switching rod 220 to drive the contact blade 120 to turn up for closing.

[0047] In addition, as Figures 7-11 shown, in order to automatically open and close to ensure personal safety, it further includes a separating and closing mechanism 300 for controlling the swinging of the transmission rod 230 to drive the contact blade 120 to separate from the contact seat 110. The separating and closing mechanism 300 includes a push rod 310 movably connected to the lower end of the transmission rod 230, a fixed box 320 slidably connected to the bottom of the push rod 310, a transmission belt 330 sleeved inside the fixed box 320, an electromagnet 340 for repelling the cyclic movement of the transmission belt 330, and a reset group 350 for driving the transmission belt 330 to move back. The fixed box 320 is fixed to the telegraph pole by bolts like the fixing frame 100.

[0048] The bottom end of the push rod 310 is fixedly clamped with the conveyor belt 330. A number of magnetic blocks 331 are equidistantly sleeved on one section of the conveyor belt 330. The electromagnet 340 is embedded in the upper half of one end of the fixed box 320 and faces the upper turning point of the conveyor belt 330, and is used to repel the magnetic blocks 331 to drive the conveyor belt 330 to move. The reset group 350 is composed of a spiral spring 351 and a cover 352 sleeved coaxially, and this axis is coaxially connected to another turning point of the conveyor belt 330, and is used to spring back the conveyor belt 330 to move back; by setting a number of magnetic blocks 331 to be connected and repelled by the proximity of the electromagnet 340, the conveyor belt 330 is driven to move, so that the push rod 310 slides on the top surface of the fixed box 320, touching the transmission rod 230 to deflect and move. These a number of magnetic blocks 331 are designed at intervals, and the moving distance of the conveyor belt 330 is increased by being repelled one by one by these a number of magnetic blocks 331, so that it can be completed by passing a normal current through the electromagnet 340, that is, without directly repelling the push rod 310 to move a long distance by increasing the current of the electromagnet 340, saving electricity and increasing the reliability of the separating and combining mechanism 300.

[0049] Further, a slider 311 is embedded at the bottom end of the push rod 310. A clamping groove 3111 is opened on the side surface of the slider 311, and the clamping groove 3111 penetrates to the bottom surface of the slider 311. The clamping groove 3111 is clamped with the conveyor belt 330. Clamping blocks 333 are arranged on the conveyor belt 330 and on both sides of the slider 311 for clamping the push rod 310;

[0050] A sliding groove 321 is opened on the top surface of the fixed box 320. The top of the slider 311 is narrower than its bottom, and both sides of the top of the slider 311 are slidably inserted and matched with the sliding groove 321 to form a limiting state, so that the push rod 310 stands on the top surface of the fixed box 320 and slides horizontally.

[0051] Further, a swing groove 231 in the shape of a kidney-shaped hole is opened on the front side wall of the outer end of the transmission rod 230. A guiding groove 312 in the shape of a kidney-shaped hole is opened on the front side surface of the push rod 310. A connecting pin 313 is inserted at the overlapping part of the swing groove 231 and the guiding groove 312. Since the transmission rod 230 makes a circular motion and the push rod 310 makes a linear motion, by designing the swing groove 231 and the guiding groove 312, the connecting pin 313 does not interfere with each other when connecting them, so that the push rod 310 makes a linear motion to drive the transmission rod 230 to deflect and move.

[0052] Avoidance grooves 314 are opened on the left and right side walls of the push rod 310. The transmission rod 230 is slidably clamped with the avoidance grooves 314. The push rod 310 clamps and limits the transmission rod 230 to prevent it from jumping when deflecting.

[0053] Further, a communication sleeve 322 is connected to the top of one end of the fixed box 320 in a communicating manner. The electromagnet 340 is inserted and matched with the communication sleeve 322 to ensure stable installation. A magnetic isolation sheet 323 is embedded in the bottom surface of the inner end of the communication sleeve 322, and the upper end of the magnetic isolation sheet 323 extends below the iron core of the electromagnet 340. The magnetic isolation sheet 323 is made of a high-permeability magnetic material, such as iron, cobalt, nickel and their alloys. The magnetic isolation sheet 323 isolates the magnetic field from affecting the magnetic block 331 below the electromagnet 340, so that the repulsive force of the magnetic block 331 transferred to the upper layer of the transmission belt 330 by the electromagnet 340 is greater than the repulsive force of the magnetic block 331 below it. Furthermore, a driving force for the movement of the transmission belt 330 is formed. When the magnetic block 331 below rotates to the front of the electromagnet 340, it is repelled, thereby completing the long-distance movement of the transmission belt 330 in succession. That is, the magnetic isolation sheet 323 directionally shields the magnetic field to ensure that only the magnetic blocks 331 on the upper layer of the transmission belt 330 are dominated by the repulsive force for transmission. When the magnetic blocks 331 on the lower layer of the transmission belt 330 enter the area of the electromagnet 340, they drive in relay to form a continuous driving force.

[0054] Specifically, transmission wheels 332 are rotatably connected to both ends inside the fixed box 320 through pins. A belt groove 3321 is formed in the middle line of the outer arc surface of the transmission wheel 332. The transmission belt 330 is adaptively clamped with the belt groove 3321 to ensure stable closed-loop movement of the transmission belt 330. A number of card slots 3322 are formed at equal intervals in a circular shape on the side end surface of the transmission wheel 332. A number of magnetic blocks 331 are correspondingly engaged with the number of card slots 3322. When the transmission belt 330 moves, a number of magnetic blocks 331 at the turning part thereof drive the transmission wheel 332 to rotate, so that a number of magnetic blocks 331 are transferred to the front of the electromagnet 340 in an orderly manner in succession.

[0055] The card slot 3322 penetrates through the other side end surface of the transmission wheel 332 and communicates with the belt groove 3321. The magnetic block 331 has a trapezoidal structure with the narrow end pointing to the transmission wheel 332. The opening of the card slot 3322 is larger than the width of its inner end, so that the magnetic block 331 and the card slot 3322 are smoothly engaged like a gear and a rack to complete transmission stably. A square positioning hole 3323 is formed in the central axis of the transmission wheel 332 far from the electromagnet 340. The central axis of the coil spring 351 is adaptively inserted into the positioning hole 3323. When the transmission belt 330 drives the push rod 310 to move from one end of the fixed box 320 to the other end to complete opening of the switch, the coil spring 351 is driven by the transmission wheel 332 to be wound up. When the electromagnet 340 loses power, the coil spring 351 releases elastic force to drive the transmission wheel 332 to rotate back, so that the transmission belt 330 drives the push rod 310 to move back to complete closing of the switch.

[0056] The present invention also provides an application of rapid opening and closing based on the principle of electromagnetic repulsion, which is applied in the above-mentioned rapid opening and closing isolator based on the principle of electromagnetic repulsion. When it works, during opening, the electromagnet 340 is energized to generate a magnetic field, which repels the magnetic block 331 on the upper layer of the transmission belt 330, driving the transmission belt 330 to move along the inner wall of the fixed box 320; at the same time, the push rod 310 moves with the transmission belt 330, and drives the transmission rod 230 through the connecting pin 313 to deflect the rotating shaft 210, thereby driving the adjusting rod 220 to lift the contact blade 120 away from the contact seat 110 to complete the opening;

[0057] During the movement of the transmission belt 330, the coil spring 351 is compressed and stores energy; when the electromagnet 340 is powered off, the coil spring 351 releases energy, driving the transmission belt 330 to move in the reverse direction. At the same time, the push rod 310 moves back and resets the contact blade 120 through the transmission rod 230 to form a closing state with the contact seat 110. The whole process of opening and closing is automatically completed without manual intervention, combining high efficiency and safety.

[0058] It should be noted that the above embodiments are only for explaining the technical concept and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A quick-opening and closing disconnecting switch based on the principle of electromagnetic repulsion, comprising a fixing frame for hanging a plurality of pairs of contact seats, wherein a contact blade is hinged to one side of a row of several contact seats, and is characterized in that: It includes a tripping mechanism for driving a number of contact blades to be correspondingly clamped with another row of a number of contact seats. The tripping mechanism includes a rotating shaft passing through a fixed frame, a tripping rod hinged between the contact blade and the rotating shaft, and a transmission rod fixedly connected perpendicularly to the outer end of the rotating shaft. A closing and opening mechanism is used to control the swing of the transmission rod to drive the contact blade to open from the contact seat. The closing and opening mechanism includes a push rod movably connected to the lower end of the transmission rod, a fixed box slidably connected to the bottom of the push rod, a transmission belt sleeved inside the fixed box, an electromagnet for repelling the cyclic movement of the transmission belt, and a reset group for driving the transmission belt to move back. The bottom end of the push rod is fixedly clamped with the transmission belt. A number of magnetic blocks are equidistantly sleeved on a section of the transmission belt. The electromagnet is embedded in the upper half of one end of the fixed box and faces the upper turning point of the transmission belt to repel the magnetic blocks to drive the transmission belt to move. The reset group is composed of a torsion spring and a cover coaxially sleeved, and this axis is coaxially connected to another turning point of the transmission belt to rebound the transmission belt to move back.

2. The quick-opening and quick-closing disconnecting switch based on the electromagnetic repulsion principle according to claim 1, wherein: A slider is embedded at the bottom end of the push rod. A clamping groove is formed on the side surface of the slider and penetrates to the bottom surface of the slider. The clamping groove is clamped with the transmission belt. Clamping blocks are arranged on both sides of the slider on the transmission belt to clamp the push rod.

3. The quick-opening and quick-closing disconnecting switch based on the electromagnetic repulsion principle according to claim 2, wherein: A sliding groove is formed on the top surface of the fixed box. The top of the slider is narrower than its bottom, and both sides of the top of the slider are slidably inserted and matched with the sliding groove.

4. The quick-opening and quick-closing disconnecting switch based on the electromagnetic repulsion principle according to claim 3, characterized in that: A swinging groove in the shape of a waist-shaped hole is formed on the front side wall of the outer end of the transmission rod. A guiding groove in the shape of a waist-shaped hole is formed on the front side of the push rod. A connecting pin is inserted at the overlapping part of the swinging groove and the guiding groove.

5. The quick-opening and quick-closing disconnecting switch based on the electromagnetic repulsion principle according to claim 4, wherein: Avoidance grooves are formed on the left and right side walls of the push rod. The transmission rod is slidably clamped with the avoidance grooves.

6. The fast-opening and -closing disconnecting switch based on the electromagnetic repulsion principle according to claim 5, characterized in that: A communicating sleeve is connected in a communicating manner to the top of one end of the fixed box. The electromagnet is inserted and matched with the communicating sleeve. A magnetic isolation sheet is embedded in the bottom surface of the inner end of the communicating sleeve, and the upper end of the magnetic isolation sheet extends below the iron core of the electromagnet.

7. The quick-opening and quick-closing disconnector based on the electromagnetic repulsion principle according to claim 6, characterized in that: Transmission wheels are rotatably connected to both ends inside the fixed box through pins. A belt groove is formed on the middle line of the outer arc surface of the transmission wheel. The transmission belt is adaptively clamped with the belt groove. A number of clamping grooves are formed on the side end surface of the transmission wheel in an annular and equidistant manner. A number of the magnetic blocks are correspondingly engaged with a number of the clamping grooves.

8. The quick-opening and quick-closing disconnecting switch based on the electromagnetic repulsion principle according to claim 7, characterized in that: The clamping groove penetrates through the other side end surface of the transmission wheel and is communicated with the belt groove. The magnetic block has a trapezoidal structure and its narrow end points to the transmission wheel. The opening of the clamping groove is larger than the width of its inner end. A positioning hole in the shape of a square is formed on the central axis of the transmission wheel far from the electromagnet. The central axis of the torsion spring is adaptively inserted into the positioning hole.

9. The quick-opening and quick-closing disconnecting switch based on the electromagnetic repulsion principle according to claim 8, characterized in that: A turntable is sleeved on the outer end of the rotating shaft. The upper end of the transmission rod is fixedly connected to the turntable. A number of connecting rods are embedded in the side wall of the rotating shaft, and the lower end of the connecting rod is rotatably connected to the upper end of the tripping rod.

10. Application of fast opening and closing based on the principle of electromagnetic repulsion, characterized in that: Applied in the fast opening and closing disconnecting switch based on the principle of electromagnetic repulsion according to any one of claims 1-9.

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