CN212810209U

CN212810209U - Hydraulic electromagnetic circuit breaker for 5G and unlocking mechanism with indicating piece

Info

Publication number: CN212810209U
Application number: CN202022152978.3U
Authority: CN
Inventors: 施宏伟; 俞刚; 周泉淼; 李一炜; 胡媛; 刘福
Original assignee: Zhejiang Bsb Electrical Appliances Co ltd
Current assignee: Zhejiang Bsb Electrical Appliances Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-03-26
Anticipated expiration: 2030-09-27

Abstract

The utility model provides a hydraulic electromagnetic circuit breaker for 5G and an unlocking mechanism with an indicating piece, the mechanism comprises a push rod and the indicating piece, the push rod is limited with an operating end and an executing end, the executing end is arranged in the circuit breaker and hinged with a tripping mechanism in the circuit breaker, and the operating end is arranged outside the circuit breaker; the operating end is arranged adjacent to the indicating piece, and a convex part is defined on one side of the operating end close to the indicating piece; the middle part of the indicating piece is hinged to the inner wall of the shell of the circuit breaker, the control end and the indicating end of the indicating piece are respectively limited on the two sides of the middle part, an elastic piece is arranged in the middle part of the indicating piece, one end of the elastic piece abuts against one side, close to the control end, of the indicating end, and the other end of the elastic piece is used for abutting against the inner wall of the shell of the circuit breaker; the side of the indicating end far away from the control end is provided with a first indicating part and a second indicating part which are arranged along the rotating direction of the indicating piece. The utility model discloses a linkage of release mechanism and indicator in the circuit breaker instructs the contact condition of moving contact and static contact in the circuit breaker.

Description

Hydraulic electromagnetic circuit breaker for 5G and unlocking mechanism with indicating piece

Technical Field

The utility model relates to a circuit breaker, specifically speaking relates to a 5G is with hydraulic pressure electromagnetic circuit breaker and unlocking mechanism that has indicator.

Background

The breaker is a switching device which can close, carry and open/close the current under the condition of a normal loop and can close, carry and open/close the current under the condition of an abnormal loop within a specified time; meanwhile, overcurrent protection is provided for the power circuit.

When the circuit breaker is overhauled or replaced, the circuit breaker needs to be disconnected firstly and then taken out, so a manual unlocking mechanism needs to be added in the circuit breaker, electric arcs can be generated between the moving contact and the static contact in the process of disconnecting the circuit breaker by adopting the manual unlocking mechanism, the circuit breaker is still unsafe to be directly disassembled, the manual unlocking mechanism needs to be moved in place, and the shell of the circuit breaker can be opened only when the distance between the moving contact and the static contact is large enough; and the moving distance of manual release mechanism is along with receiving the structural constraint, still has some maintainer to directly open the circuit breaker casing after the manual release mechanism of short distance removal, and under this condition, maintainer's safety can not ensure, correspondingly, when the in-process of installation circuit breaker and manual locking circuit breaker, if do not put in place with manual release mechanism propelling movement, then probably lead to the sound contact to connect inseparably, the easy problem of contact failure that takes place influences the life of circuit breaker. In this case, it is necessary to indicate the switch limit position of the manual unlocking mechanism to avoid the above-described situation.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a first purpose provides a circuit breaker release mechanism with indicator, the utility model discloses an in the circuit breaker release mechanism with the linkage of indicator, indicate the contact condition of moving contact and static contact in the circuit breaker.

The second purpose of the utility model is to provide a 5G uses hydraulic pressure electromagnetic circuit breaker, be provided with the above-mentioned circuit breaker release mechanism who has the indicator in this circuit breaker.

In view of the above, one aspect of the present invention provides a circuit breaker unlocking mechanism with an indicator, the mechanism including a push rod and an indicator,

the push rod is limited with an operation end and an execution end, the execution end is arranged in the circuit breaker and is hinged with a tripping mechanism in the circuit breaker, the operation end is arranged outside the circuit breaker, and the operation end can drive the execution end to move towards the direction close to or far away from the tripping mechanism of the circuit breaker under the action of external force; the operating end is arranged adjacent to the indicating piece, and a convex part is defined on one side of the operating end close to the indicating piece;

the middle part of the indicating piece is hinged to the inner wall of the shell of the circuit breaker, the control end and the indicating end of the indicating piece are respectively limited on the two sides of the middle part, an elastic piece is arranged in the middle part of the indicating piece, one end of the elastic piece abuts against one side, close to the control end, of the indicating end, and the other end of the elastic piece is used for abutting against the inner wall of the shell of the circuit breaker; a first indicating part and a second indicating part which are arranged along the rotating direction of the indicating piece are formed on one side of the indicating end, which is far away from the control end;

in the process that the push rod moves towards the direction close to the tripping mechanism of the circuit breaker, the control end of the indicating piece is gradually extruded by the bulge part to rotate towards the direction close to the inner wall of the shell of the circuit breaker, so that the indicating end rotates along with the control end, and the stop positions of the first indicating part and the second indicating part are changed;

at the push rod to keeping away from the in-process that the circuit breaker hasp direction removed, the bellying is right the extrusion force of control end disappears gradually, the control end is in the resilience force effect of elastic component is return gradually down.

Preferably, the indicator is integrally formed.

Preferably, the first indicator and the second indicator are integrally formed at the indicator end, and the first indicator and the second indicator are blocked by a groove-shaped structure extending perpendicular to the rotating direction of the indicator.

Preferably, the first indication part and the second indication part are different in color, or indication marks indicating on or off of the circuit breaker are respectively arranged on the surfaces of the first indication part and the second indication part.

Preferably, the protruding part is fixedly arranged with the operating end of the push rod or integrally formed with the operating end of the push rod.

Preferably, the elastic element comprises a torsion spring, one end of the torsion spring abuts against the inner wall of the breaker shell, and the other end of the torsion spring is fixedly connected with or abuts against the indicating end.

The utility model discloses a another aspect provides a 5G uses hydraulic pressure electromagnetism circuit breaker, this circuit breaker include the casing and set up tripping device, moving contact, static contact and the explosion chamber in the casing, in particular, this circuit breaker still include as above circuit breaker release mechanism who has the indicator, the execution end of push rod is connected with tripping device through a linkage, be formed with on the casing with the local just right observation window of indicator's instruction end, when the push rod to being close to or keeping away from circuit breaker tripping device direction and removing to the farthest end, tripping device follows its action, thereby makes the sound contact intercommunication or the disconnection of circuit breaker, just right with first instruction portion or second instruction portion and observation window.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model links the unlocking mechanism in the circuit breaker with the indicating piece, thus, when the unlocking mechanism moves to the direction far away from the tripping mechanism and the second indicating part is opposite to the observation window, the shell of the circuit breaker can be opened; when the unlocking mechanism moves to the direction close to the tripping mechanism until the first indicating part is opposite to the observation window, the movable contact and the static contact are fully contacted, and the circuit breaker works normally. Like this, through the intercommunication of indicator and release mechanism, realize the instruction of indicator to circuit breaker operating condition, both can guarantee the security when opening circuit breaker casing, can avoid again because of the poor problem that leads to circuit breaker life-span to reduce and decrease of moving contact.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic view of an appearance structure of a circuit breaker in the implementation of the present invention;

FIG. 2 is a schematic view of an appearance structure of an indicating member and an elastic member according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an internal structure of the circuit breaker in an unlocked state according to the embodiment of the present invention;

fig. 4 is a side view in the state of fig. 3;

fig. 5 is a schematic diagram of the internal structure of the circuit breaker in the locked state according to the embodiment of the present invention;

fig. 6 is a side view in the state of fig. 5.

Wherein, 1, a shell; 2. a push rod; 3. an indicator; 4. an elastic member; 5. a tripping mechanism; 6. a linkage member;

11. an observation window; 21. an operation end; 22. an execution end; 23. a boss portion;

31. a control end; 32. an indicating end;

321. a first indication unit; 322. a second indication unit; 323. a groove-like structure.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present embodiment provides a circuit breaker unlocking mechanism having an indicator, as shown in fig. 1, which includes a push rod 2 and an indicator 3,

as shown in fig. 3 and 5, the push rod 2 defines an operating end 21 and an executing end 22, the executing end 22 is disposed in the circuit breaker and hinged to the trip mechanism 5 in the circuit breaker, the operating end 21 is disposed outside the circuit breaker, and the operating end 21 can drive the executing end 22 to move toward or away from the trip mechanism 5 of the circuit breaker under the action of an external force; the operating end 21 is arranged adjacent to the indicating piece 3, and a convex part 23 is defined on one side of the operating end close to the indicating piece 3;

as shown in fig. 2, the middle part of the indicating member 3 is hinged to the inner wall of the circuit breaker housing 1, a control end 31 and an indicating end 32 of the indicating member 3 are respectively defined at two sides of the middle part, an elastic member 4 is arranged at the middle part of the indicating member 3, one end of the elastic member 4 abuts against one side of the indicating end 32 close to the control end 31, and the other end of the elastic member 4 abuts against the inner wall of the circuit breaker housing 1; a first indicating part 321 and a second indicating part 322 which are arranged along the rotating direction of the indicator 3 are formed on one side of the indicating end 32, which is far away from the control end 31;

in the process that the push rod 2 moves towards the direction close to the circuit breaker tripping mechanism 5, the control end 31 of the indicating piece 3 is gradually rotated towards the direction close to the inner wall of the circuit breaker shell 1 under the extrusion of the convex part 23, so that the indicating end 32 rotates along with the control end, and the stop positions of the first indicating part 321 and the second indicating part 322 are changed;

in the process that the push rod 2 moves in the direction away from the circuit breaker lock catch, the extrusion force of the control end 31 disappears gradually due to the protruding portion 23, and the control end 31 returns gradually under the effect of the resilience force of the elastic piece 4.

In a preferred embodiment, the indicator 3 is integrally formed.

In a preferred embodiment, the first indicator 321 and the second indicator 322 are integrally formed at the indicator end 32, and the first indicator 321 and the second indicator 322 are blocked by a groove-like structure 323 extending perpendicular to the rotation direction of the indicator 3.

In a preferred embodiment, the first indicator 321 and the second indicator 322 are different colors, or indication marks indicating on/off of the circuit breaker are provided on the surfaces of the first indicator 321 and the second indicator 322.

In a preferred embodiment, the projection 23 is fixedly arranged or integrally formed with the operating end 21 of the plunger 2.

In a preferred embodiment, the elastic member 4 comprises a torsion spring, one end of which abuts against the inner wall of the circuit breaker housing 1, and the other end of which is fixedly connected to or abuts against the indicating end 32.

The embodiment also provides a hydraulic electromagnetic circuit breaker for 5G, which includes a housing 1, and a tripping mechanism 5, a movable contact, a fixed contact, and an arc extinguish chamber that are disposed in the housing 1, and particularly, the circuit breaker further includes a circuit breaker unlocking mechanism having an indicator 3 as described above, wherein an actuating end 22 of the push rod 2 is connected to the tripping mechanism 5 through a linkage 6, as shown in fig. 1, 4, and 6, an observation window 11 that is locally opposite to an indication end 32 of the indicator 3 is formed on the housing 1, when the push rod 2 moves to a farthest end in a direction close to or far away from the circuit breaker tripping mechanism 5, the tripping mechanism 5 follows the action of the circuit breaker, so as to connect or disconnect the movable and stationary contacts of the circuit breaker, and the first indication portion 321 or the second indication portion 322 is opposite to the observation window 11.

Although the embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, and that any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. A circuit breaker unlocking mechanism with an indicator is characterized by comprising a push rod (2) and an indicator (3),

the push rod (2) is limited with an operation end (21) and an execution end (22), the execution end (22) is arranged in the circuit breaker and hinged with a tripping mechanism (5) in the circuit breaker, the operation end (21) is arranged outside the circuit breaker, and the operation end (21) can drive the execution end (22) to move towards or away from the tripping mechanism (5) of the circuit breaker under the action of external force; the operating end (21) is arranged adjacent to the indicating piece (3), and a convex part (23) is defined on one side of the operating end close to the indicating piece (3);

the middle of the indicating piece (3) is hinged to the inner wall of the breaker shell (1), a control end (31) and an indicating end (32) of the indicating piece (3) are respectively defined at two sides of the middle of the indicating piece (3), an elastic piece (4) is arranged in the middle of the indicating piece (3), one end of the elastic piece (4) abuts against one side, close to the control end (31), of the indicating end (32), and the other end of the elastic piece (4) is used for abutting against the inner wall of the breaker shell (1); a first indicating part (321) and a second indicating part (322) which are arranged along the rotating direction of the indicating piece (3) are formed on one side of the indicating end (32) far away from the control end (31);

in the process that the push rod (2) moves towards the direction close to the circuit breaker tripping mechanism (5), the control end (31) of the indicating piece (3) is gradually rotated towards the direction close to the inner wall of the circuit breaker shell (1) under the extrusion of the convex part (23), so that the indicating end (32) rotates along with the control end, and the stop positions of the first indicating part (321) and the second indicating part (322) are changed;

in the process that push rod (2) removed to keeping away from circuit breaker hasp direction, bellying (23) are right the extrusion force of control end (31) disappears gradually, control end (31) are in return gradually under the resilience force effect of elastic component (4).

2. The circuit breaker unlocking mechanism with indicator according to claim 1, wherein the indicator (3) is integrally formed.

3. The circuit breaker unlocking mechanism with indicator according to claim 2, wherein the first indicator portion (321) and the second indicator portion (322) are integrally formed at the indicator end (32), and the first indicator portion (321) and the second indicator portion (322) are blocked by a groove-like structure (323) extending perpendicular to the rotation direction of the indicator (3).

4. The circuit breaker unlocking mechanism with indicator according to claim 3, wherein the first indicator portion (321) and the second indicator portion (322) are different colors, or indication marks indicating on or off of the circuit breaker are respectively provided on the surfaces of the first indicator portion and the second indicator portion.

5. The circuit breaker unlocking mechanism with indicator according to claim 1, wherein the protrusion (23) is fixedly disposed or integrally formed with the operation end (21) of the push rod (2).

6. The circuit breaker unlocking mechanism with indicator according to claim 1, wherein the elastic member (4) comprises a torsion spring, one end of which abuts against the inner wall of the circuit breaker housing (1), and the other end of which is fixedly connected with or abuts against the indicator end (32).

7. A hydraulic electromagnetic circuit breaker for 5G comprises a shell (1), a tripping mechanism (5), a moving contact, a static contact and an arc extinguish chamber, wherein the tripping mechanism, the moving contact, the static contact and the arc extinguish chamber are arranged in the shell (1), characterized in that it further comprises a circuit breaker unlocking mechanism with an indicator (3) according to any of claims 1-6, the actuating end (22) of the push rod (2) is connected with the tripping mechanism (5) through a linkage piece (6), an observation window (11) which is partially opposite to the indication end (32) of the indication piece (3) is formed on the shell (1), when the push rod (2) moves to the farthest end in the direction of approaching or departing from the tripping mechanism (5) of the circuit breaker, the tripping mechanism (5) acts along with the push rod, therefore, the movable and static contacts of the circuit breaker are connected or disconnected, and the first indication part (321) or the second indication part (322) is opposite to the observation window (11).