CN212848110U

CN212848110U - Circuit breaker arc extinguishing device capable of quickly extinguishing arc

Info

Publication number: CN212848110U
Application number: CN202021628668.8U
Authority: CN
Inventors: 陈益飞; 陈璟晗
Original assignee: 777 Electric Technology Co ltd
Current assignee: 777 Electric Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-30
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a circuit breaker arc control device that can quick arc extinguishing relates to circuit breaker equipment technical field, establish including arc extinguishing subassembly and cover the outside protection component of arc extinguishing subassembly, protection component includes that two cross-sections are semi-circular and relative casing, two connect the equal open-ended barrel in both ends of formation through a quick detach subassembly between the casing, the both ends of barrel all are provided with and are used for sealing correspondingly the open-ended apron. The utility model discloses a circuit breaker arc control device of arc extinguishing fast through accept the arc extinguishing subassembly in the protection component, can play good guard action to the arc extinguishing subassembly to realize the quick installation dismantlement of arc extinguishing subassembly in the protection component through the quick detach subassembly, very big reduction a large amount of dismantlement work load of worker, convenient maintenance.

Description

Circuit breaker arc extinguishing device capable of quickly extinguishing arc

Technical Field

The utility model relates to a circuit breaker equipment technical field, in particular to circuit breaker arc control device that can quick arc extinguishing.

Background

The existing circuit breaker generally comprises an arc extinguishing device, a tripping device, a contact system, an operating mechanism and the like, electric arcs can be generated when moving and static contacts of the circuit breaker are separated, and because the contact arm of a moving contact moves in a cavity of an arc extinguishing grid piece, the electric arcs can enter the arc extinguishing chamber in the generation process, the electric arcs are led into the grid pieces through the arc extinguishing grid piece, the electric arcs are cut into short arcs in series, the electric arcs are thinned, the voltage drop of the electric arcs is rapidly improved, and the arc extinguishing effect is achieved.

Present circuit breaker arc control device that can extinguish arc fast, when long-term the use, the damage can take place for inside part, and current arc control device's casing owing to adopt a large amount of screws to fix when dismantling, a large amount of work load of increase worker that can be very big, very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circuit breaker arc control device that can quick arc extinguishing has solved the current circuit breaker arc control device that can quick arc extinguishing and is not convenient for dismantle the technical problem of maintaining arc control device.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a circuit breaker arc control device that can quick arc extinguishing, its characterized in that establishes including arc extinguishing assembly and cover the outside protection component of arc extinguishing assembly, protection component includes that two cross-sections are semi-circular and relative casing, two connect through a quick detach subassembly between the casing and form the equal open-ended barrel in both ends, the both ends of barrel all are provided with and are used for sealing correspondingly the open-ended apron.

Preferably, the quick-release assembly comprises a first connecting block, a second connecting block, a rod body, a trigger and a nut, the first connecting block and the second connecting block are respectively and relatively fixed on corresponding side walls at the joint of the two shells, and the rod body is inserted between the first connecting block and the second connecting block; the trigger is positioned on one side of the first connecting block, which is far away from the second connecting block, one end of the trigger is provided with a groove which is vertical to the rod body, and a rotating shaft which is vertical to the rod body is rotationally arranged in the groove; one end of the rod body extends into the groove and is fixedly connected with the shaft body of the rotating shaft; the nut is located the connecting block two is kept away from one side of connecting block one, the other end of the body of rod is fixed through nut locking on connecting block two.

Preferably, two eccentric holes communicated with the groove are oppositely formed in two sides of the trigger close to the groove, and two ends of the rotating shaft are respectively rotatably inserted into the two eccentric holes.

Preferably, a pressing block is arranged between the first connecting block and the trigger, and the pressing block is connected with the rod body in a sliding and penetrating mode.

Preferably, the first connecting block and the second connecting block are both provided with rod holes for the rod body to pass through,

preferably, a block body of the second connecting block is provided with a thread groove for accommodating the nut.

Preferably, at least two clamping blocks are fixed on one side of the cover plate facing the shell, and a clamping groove matched with the clamping blocks in a clamping mode is formed in the shell.

Preferably, at least two grooves and convex points matched with the grooves are formed on the opposite sides of the two shells.

The utility model has the advantages as follows:

the utility model discloses a circuit breaker arc control device of arc extinguishing fast through accept the arc extinguishing subassembly in the protection component, can play good guard action to the arc extinguishing subassembly to realize the quick installation dismantlement of arc extinguishing subassembly in the protection component through the quick detach subassembly, very big reduction a large amount of dismantlement work load of worker, convenient maintenance.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a circuit breaker arc extinguishing device capable of rapidly extinguishing arc according to an embodiment of the present invention;

FIG. 2 is a schematic top cross-sectional view of the shield assembly of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic cross-sectional view of the shield assembly of FIG. 1;

fig. 5 is an enlarged schematic view of the structure at B in fig. 1.

The meaning of the reference numerals: 1. an arc extinguishing assembly; 2. a housing; 4. a cover plate; 6. a first connecting block; 7. a second connecting block; 8. a rod body; 9. pressing the block; 10. a trigger; 11. a nut; 12. a rod hole; 13. a screw groove; 14. a groove; 15. salient points; 17. a trench; 18. a rotating shaft; 19. an eccentric hole; 20. a clamping block; 21. a clamping groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1 to 5, an arc extinguishing apparatus of a circuit breaker capable of rapidly extinguishing an arc includes an arc extinguishing assembly 1 and a protection assembly covering an exterior of the arc extinguishing assembly 1. The protection component can well protect the arc extinguishing component 1 in the protection component, and the influence of the external environment on the arc extinguishing component 1 is reduced. The protection component comprises two shells 2 with semicircular and opposite cross sections, and the shells 2 are semi-cylinders with semicircular cross sections in the embodiment. Two shells 2 are connected through a quick-release assembly to form a cylinder (not marked) with two open ends, and two ends of the cylinder are provided with cover plates 4 for sealing corresponding openings. Through two casing 2 docks and two apron 4, can form the closed cavity who is used for acceping arc extinguishing assembly 1 to play good guard action to arc extinguishing assembly 1.

The quick-release assembly comprises a first connecting block 6, a second connecting block 7, a rod body 8, a trigger 10 and a nut 11, wherein the first connecting block 6 and the second connecting block 7 are respectively and oppositely fixed on corresponding side walls located at the joint of the two shells 2, the rod body 8 is inserted between the first connecting block 6 and the second connecting block 7, and the rod body 8 can axially slide on blocks of the first connecting block 6 and the second connecting block 7.

The trigger 10 is located on one side of the first connecting block 6, which is far away from the second connecting block 7, one end of the trigger 10 is provided with a groove 17 which is perpendicular to the rod body 8, and a rotating shaft 18 which is perpendicular to the rod body 8 is rotatably arranged in the groove 17. One end of the rod body 8 extends into the groove 17 and is fixedly connected with the shaft body of the rotating shaft 18. The nut 11 is located the second connecting block 7 and keeps away from one side of the first connecting block 6, and the other end of the rod body 8 is locked and fixed on the second connecting block 7 through the nut 11.

Two eccentric holes 19 communicated with the groove 17 are oppositely arranged on two sides of the trigger 10 close to the groove 17, and two ends of the rotating shaft 18 are respectively rotatably inserted in the two eccentric holes 19.

A pressing block 9 is arranged between the first connecting block 6 and the trigger 10, and the pressing block 9 is connected with the rod body 8 in a sliding and penetrating mode. The forcing block 9 is a block body which is round and has certain elasticity, and the forcing block 9 can be made of elastic rubber materials. Through forcing block 9 not only can slow down the extrusion force between trigger 10 tip and the connecting block 6, can also shorten the contact distance between trigger 10 tip and the connecting block 6, make the process that maintainer pulled trigger 10 with the hand become more steady.

The first connecting block 6 and the second connecting block 7 are provided with rod holes 12 through which the rod bodies 8 can penetrate, and the rod bodies 8 can relatively rotate and slide in the rod holes 12.

The screw groove 13 used for accommodating the nut 11 is formed in the block body of the second connecting block 7, the nut 11 is located in the screw groove 13, the contact distance between the end of the trigger 10 and the first connecting block 6 can be shortened, and the process that a maintainer pulls the trigger 10 with a hand becomes more stable.

In this embodiment, when two casings 2 are connected through the quick-release assembly to form the cylinder, wear on the body of rod 8 and compel pressing block 9 and then pass two pole holes 12 on connecting block one 6 and connecting block two 7 in proper order, then rotate trigger 10 and make the one end of the body of rod 8 and nut 11 threaded connection, pull trigger 10 again, can make eccentric actuation, and the trigger 10 tip that is located slot 17 one end pushes compel pressing block 9, it is spacing to compel between this trigger 10 tip and compel pressing block 9, so that accomplish butt joint between connecting block one 6 and the connecting block two 7 and fix, thereby make and connect between two casings 2 and form the cylinder, this cylinder inside has the space that is used for acceping arc extinguishing assembly 1.

When maintenance personnel need take out the arc extinguishing subassembly 1 from the barrel and maintain, only need carry out opposite operation, can easily take off convenient and fast.

At least two clamping blocks 20 are fixed on one side of the cover plate 4 facing the shell 2, and a clamping groove 21 matched with the clamping blocks 20 in a clamping manner is formed in the shell 2. The fixture block 20 and the clamping groove 21 facilitate the installation and the disassembly of the cover plate 4 on the shell 2.

At least two grooves 14 and bumps 15 matched with the grooves 14 are formed on the opposite sides of the two shells 2. Through recess 14 and bump 15, can play the spacing effect of direction when two casings 2 dock, make things convenient for the butt joint between two casings 2, still can make the connection between two casings 2 more firm simultaneously.

The above description specifically describes the preferred embodiment of the present invention, but of course, the present invention can also adopt different forms from the above embodiments, and equivalent changes or corresponding modifications made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. But circuit breaker arc control device of quick arc extinguishing, its characterized in that establishes including arc extinguishing assembly and cover the outside protection component of arc extinguishing assembly, protection component includes that two cross-sections are semi-circular and relative casing, two connect through a quick detach subassembly between the casing and form the equal open-ended barrel in both ends, the both ends of barrel all are provided with and are used for sealing correspondingly the open-ended apron.

2. The circuit breaker arc extinguishing device capable of rapidly extinguishing arcs according to claim 1, wherein the quick-release assembly comprises a first connecting block, a second connecting block, a rod, a trigger and a nut, the first connecting block and the second connecting block are respectively fixed relatively on corresponding side walls at the joint of the two shells, and the rod is inserted between the first connecting block and the second connecting block; the trigger is positioned on one side of the first connecting block, which is far away from the second connecting block, one end of the trigger is provided with a groove which is vertical to the rod body, and a rotating shaft which is vertical to the rod body is rotationally arranged in the groove; one end of the rod body extends into the groove and is fixedly connected with the shaft body of the rotating shaft; the nut is located the connecting block two is kept away from one side of connecting block one, the other end of the body of rod is fixed through nut locking on connecting block two.

3. The circuit breaker arc extinguishing device capable of rapidly extinguishing arcs according to claim 2, wherein two eccentric holes communicated with the groove are oppositely formed on the trigger close to two sides of the groove, and two ends of the rotating shaft are respectively rotatably inserted in the two eccentric holes.

4. The circuit breaker arc extinguishing device capable of rapidly extinguishing arcs according to claim 3, wherein a pressing block is arranged between the first connecting block and the trigger, and the pressing block is connected with the rod body in a sliding and penetrating manner.

5. The circuit breaker arc extinguishing device capable of rapidly extinguishing arcs according to claim 2, wherein the first connecting block and the second connecting block are both provided with rod holes for the rod bodies to pass through.

6. The arc extinguishing device of the circuit breaker capable of rapidly extinguishing arc according to claim 2, wherein the block of the second connecting block is provided with a screw groove for accommodating the nut.

7. The arc extinguishing device of the circuit breaker capable of rapidly extinguishing arcs according to claim 1, wherein at least two clamping blocks are fixed on one side of the cover plate facing the shell, and a clamping groove matched with the clamping blocks in a clamping manner is formed in the shell.

8. The circuit breaker arc extinguishing apparatus capable of rapidly extinguishing arcs according to claim 1, wherein at least two grooves and protrusions matched with the grooves are formed on the opposite sides of the two shells.