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CN-122025466-A - Quick and reliable reclosing switch

CN122025466ACN 122025466 ACN122025466 ACN 122025466ACN-122025466-A

Abstract

The invention discloses a quick and reliable reclosing switch, which relates to the technical field of vacuum circuit breakers and aims to solve the technical problems that an existing vacuum circuit breaker mainly drives the circuit breaker to finish closing and opening actions through an electromagnetic operating mechanism, but the electromagnetic operating mechanism is used for realizing stable and continuous output of current on the premise of realizing stable closing and opening actions so as to form a stable magnetic field to maintain the closing and opening actions, when current fluctuates, the switch is easy to surreptitiously jump. The invention has the advantage of improving the stability and reliability of closing.

Inventors

  • JI HONGSHUN
  • ZHOU JIANXIN
  • YANG XIAOSONG
  • JI JIAYI

Assignees

  • 南京天卓电气科技有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (8)

  1. 1. A fast and reliable reclosing switch, characterized by comprising symmetrically arranged bases (1); The novel switch is characterized in that a U-shaped shell (4) and a frame-shaped connecting piece (2) are detachably connected between the bases (1), an insulating substrate (3) is detachably arranged at the top of the inner wall of the U-shaped shell (4), a switch-on/switch assembly (7) is detachably arranged at the bottom of the insulating substrate (3) at equal intervals, a switch-on/switch indication assembly (8) is fixedly arranged at one side of the bottom of the insulating substrate (3), and a switch-off handle assembly (9) is movably arranged at one side of the U-shaped shell (4); the switching-on/off switch assembly (7) comprises a vacuum arc-extinguishing chamber (701) which is detachably arranged at the top of the insulating substrate (3), and the switching-on/off switch assembly (7) further comprises a switching-on/off module (11) which is detachably arranged at the top of the inner wall of the insulating substrate (3); the opening and closing module (11) comprises a bottom plate (1101) with a chassis (1109) detachably arranged in the middle of the top, a linkage assembly (12) is detachably and movably arranged at the top of the chassis (1109), and a limit assembly (13) is rotatably arranged in the chassis (1109); The linkage assembly (12) comprises a linkage disc (1201) with a hollow hole formed therein, convex keys (1203) are symmetrically formed on the inner wall of the hollow hole, an extension plate (1204) is formed at one end of the linkage disc (1201), and a pull groove (1205) is formed at one side of the extension plate (1204); The limiting component (13) comprises a linkage seat (1301) with key grooves (1303) formed on the outer edge surface symmetrically, at least two guide grooves (1304) are formed on the top of the outer edge surface of the linkage seat (1301) in an annular array, an anti-drop groove (1305) is formed on the top of one side of the inner wall of the guide groove (1304), a convex key (1203) is clamped and arranged in the key grooves (1303), a movable seat (1127) is movably arranged in the linkage seat (1301), at least two strip-shaped bulges (1128) are formed on the outer edge surface of the movable seat (1127) in an annular array structure, an actuating rod (1129) and a push rod (10) are respectively arranged at the top and the bottom of the movable seat (1127) in a threaded fit manner, a hole body which is matched with the push rod (10) is formed in the bottom plate (1101), an elastic pulling mechanism I for hanging a connecting pulling groove (1205) and playing a pulling effect on the linkage disc (1101) is arranged on one side of the upper end surface of the bottom plate (1101), a permanent magnet pulling mechanism (1106) is arranged between the top of the movable seat (1126) and the permanent magnet pulling mechanism (1101), a permanent magnet pulling mechanism (1106) is arranged on the top of the bottom plate (1101), and the top of the magnetic mechanism (1106) is arranged on the top surface, the actuating rod (1129) is penetrated out of the mounting groove and is detachably fixed with the permanent magnet sliding seat (1126), an electromagnetic coil (1130) is sleeved outside a section of the actuating rod (1129) located in the mounting groove, a poking ring (1115) is rotatably mounted on one side of the upper end face of the chassis (1109), protruding blocks (1116) are formed at the top and the bottom of the outer edge face of the poking ring (1115), the protruding blocks (1116) are distributed in ninety degrees, and the protruding blocks (1116) are respectively abutted to the poking mechanism and the linkage assembly (12).
  2. 2. The quick and reliable reclosing switch according to claim 1, wherein the first elastic pulling mechanism comprises a bolt (1108) with one end in threaded connection with one corner of the upper end face of the bottom plate (1101), a second tension spring (1122) is hooked inside the top end of the bolt (1108), the other end of the second tension spring (1122) is hooked in a pull groove (1205), and a clamping groove (1202) is formed in one end, far away from the extension plate (1204), of the linkage disc (1201).
  3. 3. The quick and reliable reclosing switch according to claim 2, wherein the toggle mechanism comprises a pillar (1110) fixedly arranged at one corner of the upper end face of the bottom plate (1101), a connecting arm (1111) is rotatably connected to the top end of the pillar (1110), an L-shaped clamping plate (1112) is formed by bending one half side of one end of the connecting arm (1111) far away from the pillar (1110), the L-shaped clamping plate (1112) is movably clamped inside the clamping groove (1202), a rocker arm (1113) is connected to the other half side of one end of the connecting arm (1111) far away from the pillar (1110), and a tongue plate (1114) is formed by bending one end of the rocker arm (1113) far away from the connecting arm (1111) upwards.
  4. 4. The quick and reliable reclosing switch according to claim 3, wherein the elastic pulling mechanism II comprises a screw rod (1118) which is symmetrically arranged and is connected with the bottom end of the screw rod (1109) in a threaded mode, a limiting ring (1119) is sleeved on the outer edge surface of the linkage seat (1301), lugs (1120) are symmetrically arranged on the outer edge surface of the limiting ring (1119), the lugs (1120) are sleeved on the outer edge surface of the screw rod (1118), nuts which are connected with the screw rod (1118) in a threaded mode are arranged at the top and the bottom of the lugs (1120), a tension spring I (1121) is hooked on the outer edge surface of the top end of the screw rod (1118), one end, far away from the screw rod (1118), of the tension spring I (1121) is hooked on a tongue plate (1114), and a hanging hole which is matched with one end of the tension spring I (1121) is hooked is formed in an inner mode towards one end of the rocker arm (1113).
  5. 5. The quick and reliable reclosing switch according to claim 4, wherein an annular block (1302) is formed on the outer edge surface of the linkage seat (1301), a notch is formed in the annular block (1302) corresponding to the key groove (1303), the lower end surface of the annular block (1302) is abutted to the linkage disc (1201), the lower end surface of the limit ring (1119) is abutted to the upper surface of the annular block (1302), a bearing (1117) is arranged in the chassis (1109), and the bearing (1117) is fixedly connected with the linkage disc (1201).
  6. 6. The quick and reliable reclosing switch according to claim 5, wherein upright posts (1105) are arranged at four corners of the upper end face of the bottom plate (1101), an insulation box cover (1102) is covered at the edge of the upper end face of the bottom plate (1101), a top plate (1104) is arranged at the top of the insulation box cover (1102), screws (1106) with one ends capable of being screwed into the upright posts (1105) are arranged at four corners of the upper end face of the top plate (1104) and four corners of the lower end face of the bottom plate (1101), the upright posts (1105) are abutted against the inner wall of the insulation box cover (1102), an electromagnet (1107) is detachably mounted on the inner wall of the insulation box cover (1102), and square grooves (1103) for swinging of tongue plates (1114) are formed in one side of the inner wall of the insulation box cover (1102).
  7. 7. The quick and reliable reclosing switch according to claim 6, wherein the top of the top plate (1104) is detachably provided with a cover body (1123), the top of the cover body (1123) is detachably provided with a cover plate (1124) covering the outside of the permanent magnet slide (1126), an annular groove is formed in the top of the inner edge surface of the cover body (1123), a polyurethane damping plate (1125) is detachably arranged in the annular groove, the polyurethane damping plate (1125) is arranged between the cover plate (1124) and the cover body (1123), an annular protrusion is formed on the outer edge surface of the bottom end of the permanent magnet slide (1126), the annular protrusion is movably abutted to the polyurethane damping plate (1125), an end cover (1131) is detachably arranged at the top of the cover plate (1124), a flange plate (1132) is detachably connected with the top of the inner wall of the insulating substrate (3), a threaded connection rod (1139) is arranged in the cover plate (1124) in the inner edge surface of the cover plate (1121), and the insulating component (1129) is detached from the top end plate (1124).
  8. 8. The quick and reliable reclosing switch according to claim 7, wherein the vacuum arc-extinguishing chamber (701) is covered outside the opening and closing execution assembly (14), the vacuum arc-extinguishing bags (6) covered outside the vacuum arc-extinguishing chamber (701) are detachably arranged on the upper end surface of the insulating substrate (3) at equal intervals corresponding to the position of the opening and closing switch assembly (7), and the opening and closing indication plate (5) is detachably arranged on one side of the U-shaped shell (4).

Description

Quick and reliable reclosing switch Technical Field The invention relates to the technical field of vacuum circuit breakers, in particular to a quick and reliable reclosing switch. Background A vacuum circuit breaker is a circuit breaker with a vacuum interrupter, also known as a circuit breaker in which arcing can occur in a vacuum medium. The vacuum circuit breaker uses vacuum as an arc extinguishing medium, when contacts are separated, an arc is generated between the contacts, and the arc is extinguished rapidly in a vacuum environment, so that current is cut off, and when a movable contact and a fixed contact are separated under the action of an operating mechanism, the arc is generated between the contacts. The contact surface volatilizes steam at high temperature, and because the contact is designed into a special shape, a magnetic field is generated when current passes through, and the electric arc rapidly moves along the tangential direction of the contact surface under the action of the magnetic field. After condensing part of the metal vapor on the metal cylinder, the electric arc is extinguished when the natural zero crossing occurs, and the medium strength between the contacts is quickly restored. At present, when the traditional vacuum circuit breaker is used, the circuit breaker is driven by an electromagnetic operating mechanism to finish the switching-on and switching-off actions, but the electromagnetic operating mechanism realizes stable and continuous output of current on the premise that the current is stable, so that a stable magnetic field is formed to maintain the switching-on and switching-off actions, and when the current fluctuates, the switch is easy to be subjected to the condition of stealing and tripping, so that the quick and reliable reclosing switch is provided. Disclosure of Invention The invention aims to overcome the defects of the prior art, adapt to the actual needs, and provide a quick and reliable reclosing switch so as to solve the technical problems that the current vacuum circuit breaker mainly drives the circuit breaker to complete the closing and opening actions through an electromagnetic operating mechanism, but the electromagnetic operating mechanism realizes stable and continuous output of current on the premise that the electromagnetic operating mechanism realizes stable closing and opening actions so as to form a stable magnetic field to maintain the closing and opening actions, and the switch is easy to jump when the current fluctuates. In order to solve the technical problems, the invention provides the following technical scheme that the quick and reliable reclosing switch comprises symmetrically arranged bases; The base is detachably connected with a U-shaped shell and a frame-shaped connecting piece, an insulating substrate is detachably arranged at the top of the inner wall of the U-shaped shell, an opening and closing switch assembly is detachably arranged at the bottom of the insulating substrate at equal intervals, an opening and closing indicating assembly is fixedly arranged at one side of the bottom of the insulating substrate, and an opening and closing handle assembly is movably arranged inside one side of the U-shaped shell; the switching-on/off switch assembly comprises a vacuum arc-extinguishing chamber which is detachably arranged at the top of the insulating substrate, and the switching-on/off switch assembly further comprises a switching-on/off module which is detachably arranged at the top of the inner wall of the insulating substrate; The opening and closing module comprises a bottom plate with a chassis detachably arranged in the middle of the top, a linkage assembly is detachably and movably arranged at the top of the chassis, and a limit assembly is rotatably arranged in the chassis; the linkage assembly comprises a linkage disc with a hollow hole formed in the interior, convex keys are symmetrically formed on the inner wall of the hollow hole, an extension plate is formed at one end of the linkage disc, and a pull groove is formed at one side of the extension plate; The utility model provides a limit assembly, including the outer fringe face, the linkage seat that is formed with the keyway is offered to the symmetry on the outer fringe face of linkage seat, the outer fringe face top is annular array and is offered and be formed with two at least guide ways, the inner wall one side top of guide way is offered and is formed with the anticreep groove, protruding key joint sets up in the keyway, the inside movable mounting of linkage seat has the movable seat, be annular array structure on the outer fringe face of movable seat and be formed with two at least strip-shaped protruding, and the top and the bottom of movable seat are screw thread fit respectively installs actuating lever and push rod, the inside pore volume that the adaptation push rod was worn out of having offered of bottom plate, and up end one side of bottom plate is pro