CN212411880U

CN212411880U - Circuit breaker arc extinguishing device capable of rapidly extinguishing arc

Info

Publication number: CN212411880U
Application number: CN202021629732.4U
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: 2021-01-26
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a circuit breaker arc control device capable of rapidly extinguishing arc, which comprises a lower shell, a connecting rod and a device body, wherein the upper right side of the lower shell is fixedly connected with a lower reinforcing block, a fixing device is arranged on the lower reinforcing block, an upper shell is arranged on the upper side of the lower shell, the bottom of the upper shell is fixedly connected with an upper reinforcing block, a limiting groove is arranged on the upper reinforcing block, and a limiting hole is arranged in the upper reinforcing block; the connecting rod left end is articulated with articulated piece, and articulated piece left end is installed inside the mounting groove, and the mounting groove has been seted up to the reinforcement block inside down simultaneously to connecting rod right-hand member and dead lever fixed connection install the support plate on the dead lever, and support plate left end and stopper fixed connection. According to the circuit breaker arc extinguishing device capable of quickly extinguishing arc, the pull ring is loosened, the compression spring resets and rebounds, the carrier plate moves downwards at the moment, and the limiting block is inserted into the limiting groove to complete the fixing work between the lower shell and the upper shell; the fixing mode is simple, convenient and stable.

Description

Circuit breaker arc extinguishing device capable of rapidly extinguishing arc

Technical Field

The utility model relates to a circuit breaker equipment technical field specifically is a circuit breaker arc control device of arc extinguishing fast.

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 moving path of a contact arm of a moving contact is in a cavity of an arc extinguishing grid sheet, the electric arcs can enter the arc extinguishing chamber in the generation process, the electric arcs are led between the grid sheets through the arc extinguishing grid sheet, the electric arcs are cut into short arcs connected in series, the electric arcs are thinned, the voltage drop of the electric arcs is rapidly improved, and the arc extinguishing effect is achieved; the existing circuit breaker arc extinguishing device capable of quickly extinguishing arc damages internal parts when used for a long time, and the shell of the existing arc extinguishing device is fixed by a large number of screws, so that a large amount of workload of workers can be greatly increased when the shell is disassembled; in order to solve the above-mentioned drawbacks, the prior art discloses (application number: CN201920879662.9) a circuit breaker arc extinguishing apparatus capable of rapidly extinguishing arc, which proposes that "when two housings 2 are disassembled, the two housings 2 can be disassembled by pulling the two housings 2 to take out the clamping round bar 601 from the inside of the clamping round hole 6, so as to facilitate replacement of the arc extinguishing assembly 1 with damaged inside; "through the two sets of structures of block round bar 601 and block round hole 6, accomplish the fixed work between two casings 2 for fixed structure is unstable between two casings 2, and two sets of casings take place to drop easily, structural defect exists, to above-mentioned problem, the present case of tunneling produces.

In order to solve the defects existing in the current market, a circuit breaker arc extinguishing device capable of rapidly extinguishing arc is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming the defect that mentions in the background art, provide a circuit breaker arc control device that can quick arc extinguishing. The pull ring, the compression spring, the limiting block and the limiting groove are provided with loosening pull rings, the compression spring resets and rebounds, the carrier plate moves downwards at the moment, and the limiting block is inserted into the limiting groove to complete the fixing work between the lower shell and the upper shell; the fixing mode is simple, convenient and stable.

In order to achieve the above object, the utility model provides a following technical scheme: a circuit breaker arc extinguishing device capable of quickly extinguishing arc comprises a lower shell, a connecting rod and a device body, wherein the upper right side of the lower shell is fixedly connected with a lower reinforcing block, a fixing device is arranged on the lower reinforcing block, an upper shell is arranged on the upper side of the lower shell, the bottom of the upper shell is fixedly connected with an upper reinforcing block, a limiting groove is formed in the upper reinforcing block, and a limiting hole is formed in the inner part of the upper reinforcing block;

the connecting rod left end is articulated with articulated piece, and articulated piece left end installs inside the mounting groove, and the mounting groove has been seted up to stiffener inside down simultaneously to connecting rod right-hand member and dead lever fixed connection install the support plate on the dead lever, and support plate left end and stopper fixed connection, support plate right-hand member and fixed column fixed connection simultaneously, and fixed column right-hand member and fixed plate fixed connection, fixed plate right-hand member and pull ring fixed connection.

Preferably, the fixing device is composed of a support plate, a fixing rod, a pull ring and a limiting block, and the fixing device is a rotating structure with the hinged block as a circle center.

Preferably, the support plate is of a rectangular structure made of metal materials, the guide hole is formed in the support plate, the fixing rod is connected to the inside of the guide hole in a sliding mode, and the cross sections of the fixing rod and the guide hole are of rectangular structures.

Preferably, the carrier plate is arranged in parallel with the fixing plate, and the carrier plate is fixedly connected with the fixing plate through four groups of fixing columns on the carrier plate.

Preferably, the left end of the carrier plate is fixedly connected with four groups of limiting blocks, the limiting blocks are matched with the limiting grooves in size, the limiting blocks are inserted into the limiting grooves, and the profiles of the limiting blocks and the limiting grooves are rectangular.

Preferably, the right end of the fixed rod is fixedly connected with the positioning plate, a compression spring is arranged on the left side of the positioning plate, the compression spring is sleeved on the fixed rod, and the compression spring is arranged between the support plate and the positioning plate.

Preferably, the device body is composed of a lower shell, an upper shell and fixing devices, and the fixing devices are arranged into four groups and evenly distributed on two sides of the device body.

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

1. the pull ring is pulled upwards to enable the limiting block to be separated from the limiting groove, the fixing device is rotated rightwards at the moment to be separated from the upper part of the upper reinforcing block, the disassembly work between the lower shell and the upper shell is finished, and the disassembly is convenient;

2. the compression spring is reset and rebounded, the carrier plate moves downwards at the moment, and the limiting block is inserted into the limiting groove to complete the fixing work between the lower shell and the upper shell; the fixing mode is simple, convenient and stable.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a partial schematic view of the structure of FIG. 1;

fig. 3 is a top view of the structure fixing device of the present invention;

fig. 4 is a side view of the structural support plate of the present invention;

FIG. 5 is a top view of the structural reinforcing block of the present invention;

FIG. 6 is a schematic view of the fixing of the lower case and the upper case of the structure of the present invention;

fig. 7 is a partial schematic view of the structure of fig. 6 of the present invention.

Reference numbers in the figures: 1. a lower housing; 2. a lower reinforcing block; 3. a fixing device; 4. an upper reinforcing block; 5. an upper housing; 6. a hinged block; 7. mounting grooves; 8. a connecting rod; 9. a limiting block; 10. a carrier plate; 11. fixing a column; 12. a compression spring; 13. positioning a plate; 14. a fixing plate; 15. a pull ring; 16. fixing the rod; 17. a limiting groove; 18. a limiting hole; 19. a device body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a circuit breaker arc extinguishing device capable of rapidly extinguishing arc comprises a lower shell 1, a connecting rod 8 and a device body 19, wherein the upper right side of the lower shell 1 is fixedly connected with a lower reinforcing block 2, a fixing device 3 is installed on the lower reinforcing block 2, an upper shell 5 is installed on the upper side of the lower shell 1, the bottom of the upper shell 5 is fixedly connected with an upper reinforcing block 4, a limiting groove 17 is formed in the upper reinforcing block 4, and a limiting hole 18 is formed in the upper reinforcing block 4; the fixing device 3 is composed of four parts, namely a carrier plate 10, a fixing rod 16, a pull ring 15 and a limiting block 9, and the fixing device 3 is a rotating structure taking the hinge block 6 as a circle center; the right end of the fixed rod 16 is fixedly connected with the positioning plate 13, the left side of the positioning plate 13 is provided with a pressing spring 12, meanwhile, the pressing spring 12 is sleeved on the fixed rod 16, and the pressing spring 12 is arranged between the carrier plate 10 and the positioning plate 13; the left end of the connecting rod 8 is hinged with the hinged block 6, the left end of the hinged block 6 is installed inside the installation groove 7, the installation groove 7 is formed inside the lower reinforcing block 2, the right end of the connecting rod 8 is fixedly connected with the fixed rod 16, the carrier plate 10 is installed on the fixed rod 16, the left end of the carrier plate 10 is fixedly connected with the limiting block 9, the right end of the carrier plate 10 is fixedly connected with the fixed column 11, the right end of the fixed column 11 is fixedly connected with the fixed plate 14, and the right end of the fixed plate 14 is fixedly connected with the; the carrier plate 10 is a rectangular structure made of metal materials, a guide hole is formed in the carrier plate 10, a fixing rod 16 is connected to the inside of the guide hole in a sliding mode, and the cross sections of the fixing rod 16 and the guide hole are both rectangular structures; the carrier plate 10 is arranged in parallel with the fixing plate 14, and the carrier plate 10 is fixedly connected with the fixing plate 14 through four groups of fixing columns 11 on the carrier plate; the left end of the carrier plate 10 is fixedly connected with four groups of limiting blocks 9, the limiting blocks 9 are matched with the limiting grooves 17 in size, the limiting blocks 9 are inserted into the limiting grooves 17, and the sections of the limiting blocks 9 and the limiting grooves 17 are both rectangular; the device body 19 consists of a lower shell 1, an upper shell 5 and fixing devices 3, and the fixing devices 3 are arranged into four groups and evenly distributed on two sides of the device body 19;

as shown in fig. 1-5: when the circuit breaker inside the lower shell 1 and the upper shell 5 needs to be disassembled for maintenance, the pull ring 15 is pulled upwards to enable the limiting block 9 to be separated from the limiting groove 17, the fixing device 3 is rotated rightwards at the moment to separate the fixing device 3 from the upper part of the upper reinforcing block 4, the disassembling work between the lower shell 1 and the upper shell 5 is completed, and the disassembly is convenient;

as shown in fig. 2-4: pulling the pull ring 15, the pull ring 15 drives the carrier plate 10 to move rightwards through the fixed column 11, meanwhile, the carrier plate 10 compresses the compression spring 12, the carrier plate 10 is connected to the fixed rod 16 in a sliding mode, when the carrier plate 10 moves rightwards to the bottom, the fixing device 3 is rotated, the limiting block 9 is inserted into the limiting groove 17, and fixing between the lower shell 1 and the upper shell 5 is completed.

When the circuit breaker arc extinguishing device capable of quickly extinguishing arc is used, when the lower shell 1 and the upper shell 5 are required to be fixedly connected, the pull ring 15 is pulled, the connecting rod 8 is rotated, the connecting rod 8 moves upwards, the connecting rod 8 is clamped in the limiting hole 18 in the upper reinforcing block 4, the four groups of limiting blocks 9 align to the four groups of limiting grooves 17, the pull ring 15 is loosened, the compression spring 12 resets and rebounds, the carrier plate 10 moves downwards, the limiting blocks 9 are inserted in the limiting grooves 17, and the fixing work between the lower shell 1 and the upper shell 5 is completed; the fixing mode is simple, convenient and stable; this is the whole process of the circuit breaker arc extinguishing device which can quickly extinguish the arc.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a circuit breaker arc extinguishing device that can extinguish arc fast, includes casing (1), connecting rod (8) and device body (19) down, its characterized in that: the upper right side of the lower shell (1) is fixedly connected with a lower reinforcing block (2), a fixing device (3) is arranged on the lower reinforcing block (2), an upper shell (5) is arranged on the upper side of the lower shell (1), the bottom of the upper shell (5) is fixedly connected with an upper reinforcing block (4), a limiting groove (17) is formed in the upper reinforcing block (4), and a limiting hole (18) is formed in the upper reinforcing block (4);

connecting rod (8) left end is articulated with articulated piece (6), and articulated piece (6) left end is installed inside mounting groove (7), mounting groove (7) have been seted up to reinforcement (2) inside simultaneously down, and connecting rod (8) right-hand member and dead lever (16) fixed connection, install support plate (10) on dead lever (16), and support plate (10) left end and stopper (9) fixed connection, support plate (10) right-hand member and fixed column (11) fixed connection simultaneously, and fixed column (11) right-hand member and fixed plate (14) fixed connection, fixed plate (14) right-hand member and pull ring (15) fixed connection.

2. The arc extinguishing device of the circuit breaker capable of rapidly extinguishing arcs according to claim 1, characterized in that: the fixing device (3) is composed of a support plate (10), a fixing rod (16), a pull ring (15) and a limiting block (9), and the fixing device (3) is of a rotating structure with the hinged block (6) as a circle center.

3. The arc extinguishing device of the circuit breaker capable of rapidly extinguishing arcs according to claim 1, characterized in that: the carrier plate (10) is of a rectangular structure made of metal materials, a guide hole is formed in the carrier plate (10), a fixing rod (16) is connected to the inside of the guide hole in a sliding mode, and the cross sections of the fixing rod (16) and the guide hole are of rectangular structures.

4. The arc extinguishing device of the circuit breaker capable of rapidly extinguishing arcs according to claim 1, characterized in that: the carrier plate (10) and the fixing plate (14) are arranged in parallel, and the carrier plate (10) is fixedly connected with the fixing plate (14) through four groups of fixing columns (11) on the carrier plate.

5. The arc extinguishing device of the circuit breaker capable of rapidly extinguishing arcs according to claim 1, characterized in that: the left end of the carrier plate (10) is fixedly connected with four groups of limiting blocks (9), the limiting blocks (9) are matched with the limiting grooves (17) in size, the limiting blocks (9) are inserted into the limiting grooves (17), and the sections of the limiting blocks (9) and the limiting grooves (17) are arranged in a rectangular shape.

6. The arc extinguishing device of the circuit breaker capable of rapidly extinguishing arcs according to claim 1, characterized in that: the right end of the fixed rod (16) is fixedly connected with the positioning plate (13), a compression spring (12) is arranged on the left side of the positioning plate (13), the compression spring (12) is sleeved on the fixed rod (16), and the compression spring (12) is arranged between the carrier plate (10) and the positioning plate (13).

7. The arc extinguishing device of the circuit breaker capable of rapidly extinguishing arcs according to claim 1, characterized in that: the device body (19) is composed of a lower shell (1), an upper shell (5) and fixing devices (3), and the fixing devices (3) are arranged into four groups and evenly distributed on two sides of the device body (19).