Stable opening and closing reclosing switch

Abstract

The utility model discloses a reclosing switch capable of realizing stable opening and closing, relates to the technical field of vacuum circuit breakers, and aims to solve the problems that the existing vacuum circuit breaker completes closing and opening actions mainly by driving the circuit breaker through an electromagnetic operating mechanism, but the premise of realizing stable closing and opening by the electromagnetic operating mechanism is stable and continuous output of current, and the working efficiency is low. In order to form a stable magnetic field to maintain switching-on and switching-off actions and solve the technical problem that when current fluctuates, a switch is prone to tripping without permission, the switch comprises symmetrically arranged bases, a U-shaped shell and a frame-shaped connecting piece are detachably connected between the bases, and an insulating substrate is detachably installed at the top of the inner wall of the U-shaped shell. Opening and closing switch assemblies are detachably installed at the bottom of the insulating substrate at equal intervals, an opening and closing indication assembly is fixedly arranged on one side of the bottom of the insulating substrate, and an opening handle assembly is movably installed in one side of the U-shaped shell. The utility model has the advantage of improving the stability and reliability of closing.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum circuit breaker technical field more specifically, relate to a kind of reclosing switch of stable opening and closing. BACKGROUND

[0002] Vacuum circuit breaker is the circuit breaker with vacuum arc-extinguishing chamber, also known as arc-extinguishing can occur in vacuum medium circuit breaker. Vacuum circuit breaker uses vacuum as arc-extinguishing medium, when contact separates, arc is generated between contact, and arc is extinguished rapidly in vacuum environment, thereby cutting off current, when moving contact and static contact separate under the action of operating mechanism, arc is generated between contact. Vapor is emitted from contact surface under high temperature, and arc moves rapidly along tangent direction of contact surface under the action of magnetic field generated when current passes through, after part of metal vapor condenses on metal cylinder, arc is extinguished when natural zero occurs, and dielectric strength between contact is recovered rapidly.

[0003] At present, traditional vacuum circuit breaker is mainly driven by electromagnetic operating mechanism to complete closing and opening actions when in use, but the prerequisite for realizing stable closing and opening of electromagnetic operating mechanism is stable and continuous output of current, to form stable magnetic field to maintain closing and opening actions, when current fluctuates, switch is prone to trip, therefore, we propose a kind of fast and reliable reclosing switch. CONTENT OF UTILITY MODEL

[0004] The utility model aims at overcoming the deficiency of prior art, adapting to reality needs, providing a kind of reclosing switch of stable opening and closing to solve the technical problem that current existing vacuum circuit breaker is mainly driven by electromagnetic operating mechanism to complete closing and opening actions, but the prerequisite for realizing stable closing and opening of electromagnetic operating mechanism is stable and continuous output of current, to form stable magnetic field to maintain closing and opening actions, when current fluctuates, switch is prone to trip.

[0005] To solve the above technical problem, the utility model provides the following technical scheme: a kind of reclosing switch of stable opening and closing, including symmetrically arranged base;

[0006] The detachable connection of U-shaped shell and frame-shaped connecting piece is between the base, the inner wall top of the U-shaped shell is detachably installed with insulating substrate, the bottom of the insulating substrate is equidistantly detachably installed with opening and closing switch assembly, and the bottom one side of the insulating substrate is fixedly provided with opening and closing indication assembly, the inside of the one side of the U-shaped shell is movably installed with opening handle assembly;

[0007] The opening and closing switch assembly includes vacuum arc-extinguishing chamber detachably arranged on the top of insulating substrate, and the opening and closing switch assembly also includes opening and closing module detachably arranged on the top of inner wall of insulating substrate.

[0008] The closing and opening module comprises a bottom plate with a chassis centrally detachably mounted on the top of the bottom plate, a linkage assembly detachably movably mounted on the top of the chassis, and a limiting assembly rotatably mounted in the chassis, and a mounting seat is formed on one side of the outer edge surface of the chassis, and a rotary groove is formed in the middle of the top of the chassis;

[0009] The linkage assembly comprises a linkage disc with a hollow hole formed in the inside, and a protruding key is symmetrically formed on the inner wall of the hollow hole, one end of the linkage disc is formed with an extension plate, one side of the extension plate is formed with a pulling groove, and the other end of the linkage disc is formed with a protruding block;

[0010] The limiting assembly comprises a linkage seat with a key groove symmetrically formed on the outer edge surface, at least two guide grooves are annularly arranged on the top of the outer edge surface of the linkage seat, a anti-falling groove is formed on the inner wall of the guide groove, the protruding key is detachably connected in the key groove, a movable seat is movably mounted in the linkage seat, and a conical graphene copper rotary block is coaxially connected to the bottom end of the linkage seat and rotatably mounted in the rotary groove, at least two strip-shaped protrusions are annularly arranged on the outer edge surface of the movable seat, an execution rod and a push rod are respectively threadedly mounted on the top and bottom of the movable seat, a hole is formed in the inside of the bottom plate to allow the push rod to pass through, an elastic pulling mechanism is arranged on one side of the upper end surface of the bottom plate to hang the connecting pulling groove and pull the linkage disc, a passing-out groove is formed in the corresponding position of the hole of the bottom plate and the conical graphene copper rotary block to allow the push rod to pass through, a pulling mechanism is arranged on one side of the upper end surface of the bottom plate to rotate the limiting assembly, an electromagnet is detachably arranged on the top of the mounting seat to magnetically attract the pulling mechanism, a permanent magnet sliding seat is placed on the top of the movable seat, an installation groove is formed in the inside of the top end of the permanent magnet sliding seat, the execution rod passes through the installation groove and is detachably fixed with the permanent magnet sliding seat, and an electromagnet coil is sleeved on the outside of the execution rod in the installation groove;

[0011] The pulling mechanism comprises a support fixedly arranged on one corner of the upper end surface of the bottom plate, a connecting arm is rotatably connected to the top end of the support, a clamping block is formed on one side of the end of the connecting arm away from the support, the clamping block is movably clamped in the clamping groove, a rocker arm is connected to the other side of the end of the connecting arm away from the support, a tongue plate is formed on the end of the rocker arm away from the connecting arm, a push block is connected to the other end of the connecting arm away from the support and movably abuts against the protruding block, and a torsional spring is arranged at the rotatable connection between the connecting arm and the support.

[0012] Preferably, the elastic pulling mechanism comprises a bolt threadedly connected to one corner of the top surface of the bottom plate, the top end of the bolt is internally hooked with a tension spring, the other end of the tension spring is hooked in a pulling groove, and the end away from the extension plate of the linkage disc is provided with a clamping groove.

[0013] Preferably, the top of the bottom plate is symmetrically provided with a screw rod, the outer edge surface of the linkage seat is provided with a limiting ring, the outer edge surface of the limiting ring is symmetrically provided with lugs, the lugs are sleeved on the outer edge surface of the screw rod, and the top and bottom of the lugs are provided with nuts threadedly connected with the screw rod.

[0014] Preferably, the outer edge surface of the linkage seat is provided with an annular block, the annular block is provided with a notch at the position corresponding to the key groove, the lower end surface of the annular block abuts against the linkage disc, and the lower end surface of the limiting ring abuts against the upper surface of the annular block.

[0015] Preferably, the upper end surface of the bottom plate is provided with a stand at four corners, the edge position of the upper end surface of the bottom plate is provided with an insulating box cover, the top of the insulating box cover is provided with a top plate, the upper end surface of the top plate and the lower end surface of the bottom plate are provided with a screw one threadedly screwed into the stand, the stand abuts against the inner wall of the insulating box cover, the electromagnet is detachably mounted on the inner wall of the insulating box cover, and the inner wall of the insulating box cover is provided with a square groove for swinging of the tongue plate.

[0016] Preferably, the top of the top plate is detachably provided with a cover body, the top of the cover body is detachably provided with a cover plate covering the outside of the permanent magnetic sliding seat, the inner edge surface of the cover body is provided with an annular groove at the top, the annular groove is detachably provided with a polyurethane damping plate, the polyurethane damping plate is arranged between the cover plate and the cover body, the bottom end of the permanent magnetic sliding seat is provided with an annular protrusion, the annular protrusion movably abuts against the polyurethane damping plate, the top end of the cover plate is detachably provided with an end cover, the top of the end cover is detachably provided with a flange plate, the flange plate is detachably connected with the inner wall of the insulating substrate, the inside of the end cover is provided with a connecting bolt threadedly connected with the cover plate, and the top end of the execution rod extends out of the insulating substrate and is detachably connected with a switching execution assembly.

[0017] Preferably, the vacuum arc-extinguishing chamber covers the outside of the switching execution assembly, the insulating substrate is detachably provided with a vacuum arc-extinguishing cover covering the outside of the vacuum arc-extinguishing chamber at the position corresponding to the switching assembly, and one side of the U-shaped shell is detachably provided with a switching indication plate.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1. The utility model discloses a guide groove and anti -drop groove are designed, in the process of closing, through the electromagnetism coil electrification and produces electromagnetic force to the permanent -magnetic slide and produces suction force, makes the permanent -magnetic slide receive electromagnetic force and rise, thereby drive the executive stem and movable seat rise, after closing action, the elastic pulling mechanism will draw linkage assembly deflection reset, thereby through the card joint cooperation of protruding key and key groove and drive linkage seat deflection, after the linkage seat deflection, the bottom of strip protrusion abuts in anti -drop groove, thereby complete the limit, avoid when current appears fluctuation, and the switch is easy to appear the situation of stealing jump, is favorable to the stable reliability of closing, solve the existing vacuum circuit breaker mainly through electromagnetic operating mechanism drive circuit breaker and complete closing and opening action, but the premise that electromagnetic operating mechanism realizes stable closing and opening is the output of current stable and continuous, forms the stable magnetic field to maintain closing and opening action, when current appears fluctuation, and the switch is easy to appear the problem of stealing jump.

[0020] 2. The utility model discloses still through design conical graphene copper rotary block and rotary groove, the movable connection between limit component and bottom disc discards traditional end face bearing, through the rotation cooperation of conical graphene copper rotary block and rotary groove realizes the smooth rotation of limit component, since closing action completes, and limit component will receive the impact of movable seat, leads to the greater pressure between limit component and bottom disc, therefore through the conical structure of conical graphene copper rotary block and rotary groove cooperation, it is favorable to the stability of the smoothness of limit component rotation, and graphene copper has higher hardness, can improve the service life of vacuum circuit breaker in the process of continuous closing and opening action.

[0021] 3. The utility model discloses still through design card slot and card block, after closing action, the electromagnetic force of electromagnet can produce suction force to the actuating mechanism, thereby make card block card joint in card slot, thereby limit the deflection of linkage disc, thereby limit the rotation of linkage seat, that is, limit the movement of movable seat, further play the limiting effect after closing.

[0022] 4. The utility model discloses still through design push block and convex block, in the process of opening action, when the tongue board is stressed, it overcomes torsional spring's torsional force and makes the connecting arm with pillar as pivot deflection, thereby make card block separate card slot, complete preliminary unlocking, and push block exerts the pushing force to convex block, and push linkage disc deflection, thereby make linkage seat deflection, make strip protrusion separate anti -drop groove, thereby complete further unlocking, in order to carry out opening action, realize double anti -unlocking and linkage unlocking through single component, it is favorable to reduce the use of parts, improve the integrity of device parts, thereby maintain the stability of closing and opening action.

[0023] 5、The utility model also through design polyurethane shock pad, in the closing action process, permanent magnet slide base quick action completes closing time, through setting up polyurethane shock pad, in the process of permanent magnet slide base action can play the effect of shock attenuation, avoid permanent magnet slide base direct impact and cause damage. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is structure schematic diagram of the utility model;

[0025] Figure 2 It is structure schematic diagram of the utility model Figure 1 in U-shaped shell dismantling state;

[0026] Figure 3 It is structure schematic diagram of the utility model Figure 2 of bottom view;

[0027] Figure 4 It is structure schematic diagram of the utility model opening and closing switch subassembly;

[0028] Figure 5 It is structure schematic diagram of the utility model Figure 4 in vacuum arc extinguishing bag dismantling state;

[0029] Figure 6 It is sectional view of the utility model Figure 5 in vacuum arc chamber dismantling state;

[0030] Figure 7 It is structure schematic diagram of the utility model closing state;

[0031] Figure 8 It is structure schematic diagram of the utility model opening state;

[0032] Figure 9 It is structure schematic diagram of the utility model linkage assembly and limiting component split state;

[0033] Figure 10 It is structure schematic diagram of the utility model Figure 7 of bottom structure;

[0034] Figure 11 It is sectional view of the utility model limiting component and chassis cooperation state.

[0035] Mark explanation in drawing:

[0036] 1, base; 2, frame-shaped connecting piece; 3, insulating substrate; 4, U-shaped shell; 5, opening and closing indication board; 6, vacuum arc-extinguishing package; 7, opening and closing switch assembly; 701, vacuum interrupter; 8, opening and closing indication assembly; 9, opening handle assembly; 10, push rod; 11, opening and closing module; 1101, bottom plate; 1102, insulating box cover; 1103, square groove; 1104, top plate; 1105, stand column; 1106, screw one; 1107, electromagnet; 1108, bolt; 1109, bottom disc; 1110, support column; 1111, connecting arm; 1112, clamping block; 1113, rocker arm; 1114, tongue plate; 1115, push block; 1116, protruding block; 1117, rotary groove; 1118, screw rod; 1119, limiting ring; 1120, lug; 1121, tension spring; 1122, cover body; 1123, cover plate; 1124, polyurethane damping plate; 1125, permanent magnet sliding seat; 1126, movable seat; 1127, strip-shaped protrusion; 1128, execution rod; 1129, electromagnetic coil; 1130, mounting seat; 1131, end cover; 1132, flange disc; 1133, connecting bolt; 12, linkage assembly; 1201, linkage disc; 1202, clamping groove; 1203, protruding key; 1204, extension plate; 1205, pulling groove; 13, limiting assembly; 1301, linkage seat; 1302, annular block; 1303, key groove; 1304, guide groove; 1305, anti-dropping groove; 1306, conical graphene copper rotary block; 14, opening and closing execution assembly; 15, through groove. DETAILED DESCRIPTION

[0037] As Figures 1 to 4The utility model relates to a kind of stable opening and closing of reclosing switch, including symmetrically arranged base 1, detachably connected with U-shaped shell 4 and frame connecting piece 2 between base 1, detachably installed with insulating substrate 3 in the inner wall top of U-shaped shell 4, detachably installed with opening and closing switch assembly 7 in the bottom equidistance of insulating substrate 3, and the bottom side of insulating substrate 3 is fixedly provided with opening and closing indication assembly 8, movable mounting is carried out in the inside of one side of U-shaped shell 4 with opening and closing handle assembly 9, opening and closing switch assembly 7 includes detachably set in the top of insulating substrate 3 vacuum interrupter 701, and opening and closing switch assembly 7 also includes detachably set in the inner wall top of insulating substrate 3 opening and closing module 11, opening and closing module 11 includes the bottom plate 1101 detachably installed with chassis 1109 in the top center, detachably movable mounting is carried out with linkage assembly 12 in the top of chassis 1109, and rotatable mounting is carried out with limit component 13 in the inside of chassis 1109, mounting seat 1130 is formed on the side of the outer edge surface of chassis 1109, and rotary groove 1117 is formed in the top center of chassis 1109, linkage assembly 12 includes the linkage disc 1201 formed with hollow hole in the inside, the inner wall of hollow hole is symmetrically formed with key 1203, one end of linkage disc 1201 is formed with extension plate 1204, pull slot 1205 is formed in the side of extension plate 1204, the other end of linkage disc 1201 is formed with protruding block 1116, limit component 13 includes linkage seat 1301 formed with key groove 1303 on the outer edge surface symmetrically, at least two guide grooves 1304 are formed in the top of the outer edge surface of linkage seat 1301 in annular array, anti-drop groove 1305 is formed in the inner wall side top of guide groove 1304, key 1203 is connected in key groove 1303, movable mounting is carried out with movable seat 1126 in the inside of linkage seat 1301, and coaxial structure is connected with conical graphene copper rotary block 1306 rotatable mounted in rotary groove 1117 in the bottom end of linkage seat 1301, at least two strip protrusions 1127 are formed in annular array on the outer edge surface of movable seat 1126, and movable seat 1126 is threadedly cooperated with execution rod 1128 and push rod 10 respectively in the top and bottom, hole body is opened in the inside of bottom plate 1101, and the side of the upper end surface of bottom plate 1101 is provided with elastic pulling mechanism for hanging connection pull slot 1205 and pulling linkage disc 1201, the position of hole body of bottom plate 1101 and conical graphene copper rotary block 1306 is formed with the slot 15 that push rod 10 is moved out, the side of the upper end surface of bottom plate 1101 is provided with the actuating mechanism for actuating limit component 13 to rotate, the top of mounting seat 1130 is detachably provided with electromagnet 1107 for magnetically attracting actuating mechanism, the top of movable seat 1126 is placed with permanent magnet sliding seat 1125, installation slot is formed in the inside of the top end of permanent magnet sliding seat 1125, execution rod 1128 is moved out from installation slot and is detachably fixed with permanent magnet sliding seat 1125,And the section of the execution rod 1128 located outside the mounting groove is sleeved with an electromagnetic coil 1129, the actuating mechanism comprises a support 1110 fixedly arranged on one corner of the upper end face of the bottom plate 1101, the top end of the support 1110 is rotatably connected with a connecting arm 1111, one side of the end of the connecting arm 1111 away from the support 1110 is bent to form a clamping block 1112, the clamping block 1112 is movably clamped in the clamping groove 1202, the other side of the end of the connecting arm 1111 away from the support 1110 is connected with a rocker arm 1113, the end of the rocker arm 1113 away from the connecting arm 1111 is bent upwards to form a tongue plate 1114, the other end of the connecting arm 1111 away from the support 1110 is connected with a push block 1115 movably abutting against the protruding block 1116, and torsion springs are arranged at the rotatable connections of the connecting arm 1111 and the support 1110.

[0038] In the embodiment of the utility model, the elastic pulling mechanism comprises a bolt 1108 screwing at one end on one corner of the upper end face of the bottom plate 1101, the top end of the bolt 1108 is internally hooked with a tension spring 1121, the other end of the tension spring 1121 is hooked in the pulling groove 1205, the end of the linkage disc 1201 away from the extension plate 1204 is provided with a clamping groove 1202, the top of the bottom disc 1109 is symmetrically screw threadedly installed with a screw rod 1118, the outer edge surface of the linkage seat 1301 is sleeved with a limiting ring 1119, the outer edge surface of the limiting ring 1119 is symmetrically structured with protruding ears 1120, the protruding ears 1120 are sleeved on the outer edge surface of the screw rod 1118, and the top and bottom of the protruding ears 1120 are all provided with nuts screw threadedly connected with the screw rod 1118, the outer edge surface of the linkage seat 1301 is structured with an annular block 1302, the annular block 1302 is provided with a notch at the position corresponding to the key groove 1303, the lower end surface of the annular block 1302 abuts against the linkage disc 1201, and the lower end surface of the limiting ring 1119 abuts against the upper surface of the annular block 1302.

[0039] In the embodiment of the utility model, the upper end face of the bottom plate 1101 is provided with a stand 1105 at four corners, and the edge position of the upper end face of the bottom plate 1101 is covered with an insulating box cover 1102, the top of the insulating box cover 1102 is provided with a top plate 1104, the upper end face of the top plate 1104 and the lower end face of the bottom plate 1101 are all provided with a screw one 1106 screwing at one end into the stand 1105, the stand 1105 abuts against the inner wall of the insulating box cover 1102, the electromagnet 1107 is detachably installed on the inner wall of the insulating box cover 1102, and the inner wall of the insulating box cover 1102 is provided with a square groove 1103 for swinging of the tongue plate 1114.

[0040] In the embodiment of the utility model, the top of the top plate 1104 is detachably provided with a cover body 1122, the top of the cover body 1122 is detachably provided with a cover plate 1123 covered outside the permanent magnetic slide 1125, and the inner edge surface top of the cover body 1122 is provided with an annular groove, and the annular groove is detachably provided with a polyurethane damping plate 1124, the polyurethane damping plate 1124 is arranged between the cover plate 1123 and the cover body 1122, the bottom end outer edge surface of the permanent magnetic slide 1125 is provided with an annular protrusion, the annular protrusion is movably abutted on the polyurethane damping plate 1124, the top end of the cover plate 1123 is detachably provided with an end cover 1131, the top of the end cover 1131 is detachably provided with a flange plate 1132, the flange plate 1132 is detachably connected with the inner wall top of the insulating substrate 3, the inside of the end cover 1131 is provided with a connecting bolt 1133 screwed in the cover plate 1123, the top end of the operating rod 1128 extends out of the insulating substrate 3 and is detachably connected with a switching-on and switching-off executing assembly 14, the vacuum arc-extinguishing chamber 701 is covered outside the switching-on and switching-off executing assembly 14, the insulating substrate 3 is detachably provided with a vacuum arc-extinguishing bag 6 covered outside the vacuum arc-extinguishing chamber 701 at the position corresponding to the switching-on and switching-off switch assembly 7, and one side of the U-shaped shell 4 is detachably provided with a switching-on and switching-off indicating plate 5.

[0041] Working principle: the embodiment provides a stable switching-on and switching-off reclosing switch, when in use,

[0042] In the switching-off state: the tongue plate 1114 is deflected by the switching-off handle assembly 9 to make the clamping block 1112 separate from the clamping groove 1202, and the initial unlocking is completed, when the tongue plate 1114 is deflected, the connecting arm 1111 is deflected around the support 1110 to make the clamping block 1112 separate from the clamping groove 1202, and the further unlocking is completed, so that the permanent magnetic slide 1125 can be controlled by the electromagnetic coil 1129 to complete the switching-off action;

[0043] In the closed state, the electromagnetic coil 1129 is energized to generate an electromagnetic force, thereby generating an attractive force on the permanent magnetic slide 1125, so that the permanent magnetic slide 1125 is lifted by the electromagnetic force, thereby driving the execution rod 1128 and the movable seat 1126 to rise, at this time, the opening handle assembly 9 is reset, and the tongue plate 1114 is attracted by the electromagnet 1107 to generate an attractive force, so that the convex block 1116 is separated from the linkage disc 1201, the linkage disc 1201 is deflected under the elastic force of the tension spring 1121, the linkage seat 1301 is deflected through the clamping and cooperation of the convex key 1203 and the key groove 1303 and the rotation cooperation of the copper graphene cone block 1306 and the rotation groove 1117, the bottom end of the strip-shaped protrusion 1127 abuts against the anti-withdrawal groove 1305 after the linkage seat 1301 is deflected, thereby completing the closed position limiting, and in the movement process of the tongue plate 1114, the clamping block 1112 is clamped in the clamping groove 1202, thereby limiting the deflection of the linkage disc 1201, thereby limiting the rotation of the linkage seat 1301, that is, limiting the movement of the movable seat 1126, further playing a limiting effect on the closed state.

[0044] The embodiments of the utility model discloses the better embodiment, but is not limited to this, the ordinary skill of the art, easily according to the above-mentioned embodiment, the spirit of the utility model is appreciated, and different is drawn and changes, but as long as not departing from the spirit of the utility model, all are within the protection scope of the utility model.

Claims

1. A reclosing switch with stable opening and closing, characterized in that: The base (1) is symmetrically arranged; The U-shaped shell (4) and the frame-shaped connecting piece (2) are detachably connected between the bases (1), the inner wall top of the U-shaped shell (4) is detachably installed with the insulating base plate (3), the bottom of the insulating base plate (3) is detachably installed with the opening and closing switch assembly (7) at equal intervals, one side of the bottom of the insulating base plate (3) is fixedly provided with the opening and closing indication assembly (8), and the one side inner portion of the U-shaped shell (4) is movably installed with the opening handle assembly (9); The opening and closing switch assembly (7) comprises the vacuum arc-extinguishing chamber (701) which is detachably arranged on the top of the insulating base plate (3), and further comprises the opening and closing module (11) which is detachably arranged on the inner wall top of the insulating base plate (3); The opening and closing module (11) comprises the bottom plate (1101) with the bottom disc (1109) detachably installed on the top thereof, the linkage assembly (12) is detachably movably installed on the top of the bottom disc (1109), the limit assembly (13) is rotatably installed in the bottom disc (1109), the mounting seat (1130) is formed on one side of the outer edge surface of the bottom disc (1109), and the rotary groove (1117) is formed in the top of the bottom disc (1109); The linkage assembly (12) comprises the linkage disc (1201) with the hollow hole formed in the inner portion, the protruding keys (1203) are symmetrically formed on the inner wall of the hollow hole, the extension plate (1204) is formed on one end of the linkage disc (1201), the pull groove (1205) is formed on one side of the extension plate (1204), and the protruding block (1116) is formed on the other end of the linkage disc (1201). The limiting assembly (13) comprises a linkage seat (1301) symmetrically provided with a key groove (1303) on the outer edge surface, the top of the outer edge surface of the linkage seat (1301) is annularly provided with at least two guide grooves (1304), the inner wall of the guide groove (1304) is provided with an anti-drop groove (1305) on one side of the top, the protruding key (1203) is connected in the key groove (1303), the inside of the linkage seat (1301) movably installs a movable seat (1126), and the bottom end of the linkage seat (1301) is coaxially connected with a conical graphene copper rotary block (1306) rotatably installed in the rotary groove (1117), the outer edge surface of the movable seat (1126) is annularly provided with at least two strip-shaped protrusions (1127), and the top and bottom of the movable seat (1126) are respectively threadedly connected with an execution rod (1128) and a push rod (10), the inside of the bottom plate (1101) is provided with a hole body matched with the push rod (10) to pass out, and one side of the upper end surface of the bottom plate (1101) is provided with an elastic pulling mechanism for hanging the connecting pull groove (1205) and pulling the linkage disc (1201), the bottom disc (1109) and the conical graphene copper rotary block (1306) are provided with a through-out groove (15) corresponding to the position of the hole body, the upper end surface of the bottom plate (1101) is provided with a pushing mechanism for rotating the limiting assembly (13), the top of the mounting seat (1130) is detachably provided with an electromagnet (1107) for magnetically attracting the pushing mechanism, the top of the movable seat (1126) is provided with a permanent magnet sliding seat (1125), the inside of the top end of the permanent magnet sliding seat (1125) is provided with a mounting groove, the execution rod (1128) passes out of the mounting groove and is detachably fixed with the permanent magnet sliding seat (1125), and the outer part of the execution rod (1128) in the mounting groove is provided with an electromagnet coil (1129); The pushing mechanism comprises a support (1110) fixedly arranged on one corner of the upper end surface of the bottom plate (1101), the top end of the support (1110) is rotatably connected with a connecting arm (1111), one end of the connecting arm (1111) is bent to form a clamping block (1112) on one side, the clamping block (1112) is movably clamped in the clamping groove (1202), the other end of the connecting arm (1111) is connected with a rocker arm (1113), the end of the rocker arm (1113) away from the connecting arm (1111) is bent upwards to form a tongue plate (1114), the other end of the connecting arm (1111) is connected with a push block (1115) movably abutting against the protruding block (1116), and the rotary connection between the connecting arm (1111) and the support (1110) is provided with a torsional spring.

2. A stable break-make reclosing switch according to claim 1, characterized in that The elastic pulling mechanism comprises a bolt (1108) threadedly connected to one corner of the upper end face of the bottom plate (1101), the top end of the bolt (1108) is internally hooked with a tension spring (1121), the other end of the tension spring (1121) is hooked in a pulling groove (1205), and the linkage disc (1201) is provided with a clamping groove (1202) at one end away from the extension plate (1204).

3. A stable break-make reclosing switch according to claim 2, wherein The top of the bottom disc (1109) is symmetrically provided with a screw rod (1118) in threaded fit, the outer edge face of the linkage seat (1301) is sleeved with a limiting ring (1119), the outer edge face of the limiting ring (1119) is symmetrically provided with a lug (1120), the lug (1120) is sleeved on the outer edge face of the screw rod (1118), and the top and bottom of the lug (1120) are provided with nuts in threaded fit with the screw rod (1118).

4. A stable break-make reclosing switch according to claim 3, wherein The outer edge face of the linkage seat (1301) is provided with an annular block (1302), the annular block (1302) is provided with a notch at a position corresponding to the key groove (1303), the lower end face of the annular block (1302) abuts against the linkage disc (1201), and the lower end face of the limiting ring (1119) abuts against the upper surface of the annular block (1302).

5. A stable break-make reclosing switch according to claim 4, wherein The upper end face of the bottom plate (1101) is provided with a stand (1105) at each corner, and the edge position of the upper end face of the bottom plate (1101) is sleeved with an insulating box cover (1102), the top of the insulating box cover (1102) is provided with a top plate (1104), the upper end face of the top plate (1104) and the lower end face of the bottom plate (1101) are each provided with a screw (1106) that can be screwed into the stand (1105) at one end, the stand (1105) abuts against the inner wall of the insulating box cover (1102), the electromagnet (1107) is detachably installed on the inner wall of the insulating box cover (1102), and the inner wall of the insulating box cover (1102) is provided with a square groove (1103) for swinging of the tongue plate (1114).

6. A stable break-make reclosing switch according to claim 5, wherein The top of the top plate (1104) is detachably provided with a cover (1122), the top of the cover (1122) is detachably provided with a cover plate (1123) covering the outside of the permanent magnetic slide (1125), and the inner edge surface top of the cover (1122) is provided with an annular groove, and the annular groove is detachably provided with a polyurethane damping plate (1124), the polyurethane damping plate (1124) is arranged between the cover plate (1123) and the cover (1122), the bottom end of the outer edge surface of the permanent magnetic slide (1125) is provided with an annular protrusion, the annular protrusion is movably connected to the polyurethane damping plate (1124), the top end of the cover plate (1123) is detachably provided with an end cover (1131), the top of the end cover (1131) is detachably provided with a flange plate (1132), the flange plate (1132) is detachably connected with the inner wall top of the insulating base plate (3), the inside of the end cover (1131) is provided with a connecting bolt (1133) screwed into the cover plate (1123), and the top end of the operating rod (1128) extends out of the insulating base plate (3) and is detachably connected with a switching execution assembly (14).

7. A stable break-make reclosing switch according to claim 6, wherein The vacuum arc-extinguishing chamber (701) is covered outside the switching execution assembly (14), the upper end surface of the insulating base plate (3) is detachably provided with a vacuum arc-extinguishing cover (6) covering the outside of the vacuum arc-extinguishing chamber (701) at a position corresponding to the distance of the switching switch assembly (7), and one side of the U-shaped shell (4) is detachably provided with a switching indication plate (5).

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