CN212907468U

CN212907468U - Opening lock for universal circuit breaker and universal circuit breaker

Info

Publication number: CN212907468U
Application number: CN202021926999.XU
Authority: CN
Inventors: 王金华; 高超; 冯琪
Original assignee: Wuxi Sahat Electrical Co Ltd
Current assignee: Wuxi Sahat Electrical Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-04-06
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses an omnipotent breaker is with dividing floodgate lock and omnipotent breaker, this omnipotent breaker is with dividing floodgate lock includes support, lock core and locking plate, the locking plate includes this somatic part and bellying, the bellying protrusion is in the outward flange of this somatic part, the center department of this somatic part has seted up the mounting hole, the locking plate is fixed in the dabber of lock core through the mounting hole, the outer flange of this somatic part is close to the bellying department and fixedly installs the round pin axle, install the spring on the round pin axle, one end of spring is connected in the round pin axle, the other end of spring is connected in the support, the spring axis and the locking plate; in a locking state, a tension acting line of the spring is positioned on one side of the center of the mandrel; in the unlocking state, the tension action line of the spring is positioned on the other side of the center of the mandrel. The utility model discloses add the spring, when carrying out the divide-shut brake operation to the circuit breaker, locking plate and lock core can keep at the unblock state, have solved the unexpected self-locking problem of separating brake lock, have improved the reliability.

Description

Opening lock for universal circuit breaker and universal circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field especially relates to an universal circuit breaker is with separating floodgate lock and universal circuit breaker.

Background

The universal circuit breaker is also called frame type circuit breaker, and is a mechanical switch electric appliance which can connect, bear and break the current under the normal circuit condition, and can also connect, bear and break the current for a certain time under the specified abnormal circuit condition. Conventional circuit breakers are used to distribute electrical energy and to protect lines and power equipment from overloads, undervoltages, short circuits, etc.

The opening lock is an important component of the universal circuit breaker, is arranged on a cover plate of an operating mechanism of the universal circuit breaker, and can lock the circuit breaker at an opening position by rotating a key lock while pressing an opening button of the circuit breaker, and prevent the circuit breaker from being closed. The common types of separating brake locks include three locks with two keys, five locks with three keys, etc. Because the lock core of separating brake lock is comparatively nimble, at the normal divide-shut brake in-process of circuit breaker, under the action of gravity of locking plate, the lock core probably takes place to rotate, and when operation circuit breaker separating brake button, the locking plate easily falls into the spacing inslot on the push rod automatically, and then causes the unexpected locking of circuit breaker, influences the circuit breaker reliability. Thus, a solution is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to above-mentioned problem, provide an omnipotent breaker is with separating floodgate lock and omnipotent circuit breaker to solve the problem that proposes among the above-mentioned background art.

The utility model aims at realizing through the following technical scheme:

a brake separating lock for an universal circuit breaker comprises a support, a lock cylinder and a lock plate, wherein the lock cylinder is installed on the support, the lock plate comprises a protruding portion and a body portion with a circular structure, the protruding portion protrudes out of the outer edge of the body portion, an installation hole is formed in the center of the body portion, the lock plate is fixed on a core shaft of the lock cylinder through the installation hole, a pin shaft is fixedly installed on the outer edge of the body portion, the position, close to the protruding portion, of the outer edge of the body portion, the central axis of the pin shaft is parallel to the central axis of the installation hole, the pin shaft is perpendicular to the body portion, a spring is installed on the pin shaft, one end of the spring is connected to the pin shaft, the other end of the spring is connected to the support, and; in a locking state, a tension acting line of the spring is positioned on one side of the center of the mandrel; in the unlocking state, the tension action line of the spring is positioned on the other side of the center of the mandrel.

As an optimized scheme of the utility model, the round pin epaxial slot has been seted up, the one end of spring is colluded and is linked up in the slot.

As an optimized scheme of the utility model, the spring fixed orifices has been seted up on the support, the other end of spring colludes even in the spring fixed orifices.

As a preferable embodiment of the present invention, the body portion and the protruding portion are of an integral structure.

A universal circuit breaker comprises the opening lock for the universal circuit breaker.

The beneficial effects of the utility model are that, compared with the prior art, the utility model discloses add the spring, after the separating brake lock unblock, under the effect of spring tension, locking plate and lock core can the automatic movement to the unblock state, and the gravity of locking plate can be overcome to spring tension, and when carrying out the divide-shut brake operation to the circuit breaker, locking plate and lock core can keep at the unblock state, have solved the unexpected auto-lock problem of separating brake lock, have improved the reliability.

Drawings

FIG. 1 is a schematic structural view of a tripping lock for a universal circuit breaker;

FIG. 2 is a schematic view of a tripping lock for a universal circuit breaker in a locked state;

fig. 3 is a schematic view of an opening lock for a universal circuit breaker in an unlocked state.

In the figure:

1. a support; 2. a lock cylinder; 3. a locking plate; 4. a pin shaft; 5. a spring; 6. a mandrel; 7. a spring fixing hole; 8. a body portion; 9. a raised portion.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings. It is to be understood that the embodiments described herein are merely illustrative of the present invention and are not limiting thereof.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a tripping lock for a universal circuit breaker; FIG. 2 is a schematic view of a tripping lock for a universal circuit breaker in a locked state; fig. 3 is a schematic view of an opening lock for a universal circuit breaker in an unlocked state.

In this embodiment, a brake separating lock for a universal circuit breaker comprises a bracket 1, a lock cylinder 2 and a lock plate 3, the lock core 2 is arranged on the bracket 1, the lock sheet 3 comprises a convex part 9 and a body part 8 with a circular structure, the convex part 9 protrudes out of the outer edge of the body part 8, the center of the body part 8 is provided with a mounting hole, the locking plate 3 is fixed on the core shaft 6 of the lock core 2 through the mounting hole, the pin shaft 4 is fixedly arranged at the position, adjacent to the lug boss 9, of the outer edge of the body part 8, the central axis of the pin shaft 4 is parallel to the central axis of the mounting hole, the pin shaft 4 is perpendicular to the body part 8, a spring 5 is arranged on the pin shaft 4, one end of the spring 5 is connected to the pin shaft 4, the other end of the spring 5 is connected to the bracket 1, and the spring axis of the spring 5 is parallel to the locking plate 3; in a locking state, a tension acting line of the spring 5 is positioned on one side of the center of the mandrel 6; in the unlocked state, the line of action of the spring 5 is located on the other side of the center of the spindle 6.

Specifically, in this embodiment, a groove is formed on the pin 4, and one end of the spring 5 is hooked in the groove; the support 1 is provided with a spring fixing hole 7, and the other end of the spring 5 is hooked in the spring fixing hole 7.

For the convenience of manufacturing, in this embodiment, the main body portion 8 and the protruding portion 9 are of an integral structure.

When the circuit breaker is required to be locked, the lock core 2 of the key lock is rotated, and after a pulling force acting line of the spring 5 passes through the core shaft 6 of the lock core 2, the lock plate 3 and the lock core 2 can automatically move to a locking state under the action of the pulling force of the spring; when the circuit breaker needs to be unlocked, the lock cylinder 2 of the key lock is rotated reversely, after the tension acting line of the spring 5 passes through the mandrel 6 of the lock cylinder 2, the lock plate 3 and the lock cylinder 2 can automatically move to an unlocking state under the action of the tension of the spring 5, the tension of the spring 5 can overcome the gravity of the lock plate 3, and when the circuit breaker is switched on and off, the lock plate 3 and the lock cylinder 2 can be kept in the unlocking state.

The embodiment also discloses a universal circuit breaker, which comprises the opening lock for the universal circuit breaker.

The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims.

Claims

1. The utility model provides an omnipotent breaker is with separating floodgate lock, includes support, lock core and locking plate, its characterized in that: the lock cylinder is arranged on the support, the lock plate comprises a protruding portion and a body portion with a circular structure, the protruding portion protrudes out of the outer edge of the body portion, an installation hole is formed in the center of the body portion, the lock plate is fixed on a core shaft of the lock cylinder through the installation hole, a pin shaft is fixedly arranged on the outer edge of the body portion close to the protruding portion, the central axis of the pin shaft is parallel to the central axis of the installation hole, the pin shaft is perpendicular to the body portion, a spring is arranged on the pin shaft, one end of the spring is connected to the pin shaft, the other end of the spring is connected to the support, and the spring axis of the spring is parallel to the lock plate; in a locking state, a tension acting line of the spring is positioned on one side of the center of the mandrel; in the unlocking state, the tension action line of the spring is positioned on the other side of the center of the mandrel.

2. The opening lock of claim 1, wherein: the pin shaft is provided with a groove, and one end of the spring is hooked in the groove.

3. The opening lock of claim 2, wherein: the support is provided with a spring fixing hole, and the other end of the spring is hooked in the spring fixing hole.

4. The opening lock for a universal circuit breaker according to any one of claims 1 to 3, wherein: the body part and the protruding part are of an integral structure.

5. A universal circuit breaker, its characterized in that: comprising a tripping lock for a universal circuit breaker according to any one of claims 1 to 4.