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CN-224232621-U - Combined structure of trip bar and reset bar, trip reset device and circuit breaker

CN224232621UCN 224232621 UCN224232621 UCN 224232621UCN-224232621-U

Abstract

The utility model discloses a combined structure of a trip lever and a reset lever, a trip reset device and a circuit breaker, which comprises a shell, the trip lever and the reset lever, wherein the trip lever and the reset lever are pivoted on the shell, the trip lever can rotate between a reset position and a trip position relative to the shell, a trip lever reset spring is connected between the trip lever and the shell, the reset lever is connected with the reset lever reset spring, a caulking groove is formed in the peripheral surface of the trip lever, a convex part corresponding to the caulking groove is arranged on the reset lever, and when the trip lever rotates to the trip position relative to the shell, the convex part on the reset lever is adaptively clamped into the caulking groove of the trip lever and limits the rotary reset of the trip lever. The utility model can reduce the mounting alignment precision between the tripping rod and the reset rod to a certain extent by the mutual matching of the convex part and the caulking groove, thereby being beneficial to improving the assembly efficiency.

Inventors

  • ZHOU LIUCHUAN
  • LIN ZHENGJI
  • LIN XINDE
  • TAN ZHONGHUA

Assignees

  • 厦门宏发电声股份有限公司

Dates

Publication Date
20260512
Application Date
20250422

Claims (8)

  1. 1. The utility model provides a composite structure of release lever and reset lever, be applied to among the trip reset device of circuit breaker, wherein include casing (1) and pivot trip lever (2) and reset lever (3) on casing (1), trip lever (2) can rotate between reset position and trip position relative casing (1), be connected with trip lever reset spring (4) between trip lever (2) and casing (1), be connected with reset lever reset spring (5) between reset lever (3) and casing (1), and set up caulking groove (21) on the global of trip lever (2), be equipped with on reset lever (3) with caulking groove (21) corresponding convex part (31), when trip lever (2) rotate to trip position relative casing (1), convex part (31) on trip lever (3) are gone into in caulking groove (21) of trip lever (2) and restriction trip lever (2) gyration reset in the adaptation.
  2. 2. The combination of a trip lever and a reset lever according to claim 1, wherein the trip lever (2) is provided with an arc surface (22) arranged along the rotation direction of the trip lever (2) and adjacent to the caulking groove (21), so that the convex part (31) of the reset lever (3) is abutted against the arc surface (22) in the process of rotating the trip lever (2) from the trip position to the reset position.
  3. 3. The combination of a trip bar and a reset bar according to claim 2, wherein the rotation center of the arc surface (22) coincides with the rotation center of the trip bar (2).
  4. 4. The combination of a trip bar and a reset bar according to claim 3, wherein the trip bar (2) is provided with a cylindrical section (23) which rotates coaxially with the trip bar (2), the circumferential surface of the cylindrical section (23) forms an arc surface (22) for abutting and matching with the convex part (31), and the caulking groove (21) is formed on the circumferential surface of the cylindrical section (23).
  5. 5. The combination of a trip bar and a reset bar according to claim 1, wherein the trip bar reset spring (4) is a tension spring, one end of which is connected to the casing (1) and the other end is connected to the trip bar (2).
  6. 6. The combined structure of the trip bar and the reset bar according to claim 1, wherein the reset bar reset spring (5) is a tension spring, one end of the tension spring is connected to the shell (1), and the other end of the tension spring is connected to the reset bar (3).
  7. 7. The tripping resetting device is characterized by comprising a tripping electromagnet (6) and the combined structure of the tripping rod and the resetting rod, which is described in any one of claims 1 to 6, wherein the tripping electromagnet (6) is fixedly arranged in a shell (1) and is arranged corresponding to the tripping rod (2), and the tripping rod (2) is configured to rotate from the resetting position to the tripping position under the driving action of a telescopic driving end of the tripping electromagnet (6).
  8. 8. A circuit breaker is characterized by comprising the tripping resetting device of claim 7.

Description

Combined structure of trip bar and reset bar, trip reset device and circuit breaker Technical Field The utility model relates to the technical field of circuit breakers, in particular to a combined structure of a tripping rod and a reset rod, a tripping reset device and a circuit breaker. Background Referring to fig. 4, in a trip reset device in the prior art, a trip rod is in two working positions of trip and reset by means of mutual buckling or separation of a buckle and a clamping hole, but a clamping hole structure on the trip rod of the matching structure swings along with rotation of the trip rod, and meanwhile, the buckle on the reset rod is arranged on a free end of a lever structure, so that if the buckle and the clamping hole are in accurate matching, the installation alignment accuracy between the trip rod and the reset rod is higher, and even the buckling action between the buckle and the clamping hole is blocked due to slight deviation, so that the buckling or separation action between the trip rod and the reset rod is unsmooth. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a combined structure of a tripping rod and a reset rod, which mainly solves the technical problem that the existing combined structure of the tripping rod and the reset rod which are mutually matched through a buckle and a clamping hole has higher requirement on the installation alignment precision between the tripping rod and the reset rod. In order to achieve the above purpose, the utility model is realized by the following technical scheme: The utility model provides a composite structure of release lever and release lever, including casing and pivot locate release lever and release lever on the casing, the relative casing of release lever can rotate between reset position and release position, is connected with the release lever reset spring between release lever and the casing, and has seted up the caulking groove on the global of release lever, is equipped with the convex part that corresponds with the caulking groove on the release lever, when the relative casing of release lever rotates to the release position, the convex part on the release lever is blocked in the caulking groove of release lever and restriction release lever gyration reset with the adaptation. Further, the arc surfaces which are arranged along the rotation direction of the trip rod and are adjacent to the caulking groove are arranged on the trip rod, so that the convex parts on the reset rod are abutted on the arc surfaces in the process of rotating the trip rod from the trip position to the reset position. Further, the rotation center of the arc surface coincides with the rotation center of the trip bar. Further, a cylindrical section which rotates coaxially with the trip rod is arranged on the trip rod, an arc surface which is used for being in butt fit with the convex part is formed on the peripheral surface of the cylindrical section, and the caulking groove is formed on the peripheral surface of the cylindrical section. Further, the trip bar reset spring is a tension spring, one end of the tension spring is connected to the shell, and the other end of the tension spring is connected to the trip bar. Further, the reset rod reset spring is a tension spring, one end of the tension spring is connected to the shell, and the other end of the tension spring is connected to the reset rod. Based on the same conception, the utility model also provides a tripping resetting device which comprises a tripping electromagnet and any of the above combined structures of the tripping rod and the resetting rod, wherein the tripping electromagnet is fixedly arranged in the shell and is correspondingly arranged with the tripping rod, and the tripping rod is configured to rotate from the resetting position to the tripping position under the driving action of the telescopic driving end of the tripping electromagnet. Based on the same inventive concept, the utility model also provides a circuit breaker, which comprises any one of the tripping resetting device. The technical scheme has the following advantages or beneficial effects: In the combined structure of the trip rod and the reset rod, the trip reset device and the circuit breaker, the trip rod and the reset rod are mutually matched through the convex parts corresponding to each other and the caulking grooves, when the trip rod is in the reset position, the convex parts on the reset rod are abutted against the peripheral surface of the trip rod, and when the trip rod rotates to the trip position relative to the shell, the convex parts are automatically clamped into the caulking grooves corresponding to the trip rod under the action of the reset spring of the reset rod, so that the stable anti-rotation limiting effect is realized. Therefore, the mounting alignment precision between the trip bar and the reset bar can be reduced to a certain extent by the mutual matc