CN2517101Y

CN2517101Y - Small-sized circuit breaker operating device

Info

Publication number: CN2517101Y
Application number: CN 01273291
Authority: CN
Inventors: 施怡挺
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-31
Filing date: 2001-12-31
Publication date: 2002-10-16
Anticipated expiration: 2011-12-31

Abstract

The utility model relates to a miniature control apparatus for a circuit breaker; an end of a connecting rod is hinged with a handle, and the other end is hinged with a jump pin; a movable contact, a contact support and a lock catch are simultaneously assembled on a base by a main shaft; wherein, the movable contact tails into the contact support, and the movable contact and the contact support are connected to be a clearance fit via a rivet; an end of the contact support is hinged and interlocked with the jump pin via a riveted pipe; the end of the jump pin is overlapped with the lock catch; a spring of the lock catch is sleeved on the boss of the lock catch, the spring foot on a side is clamped on the lock catch and the spring foot on the other side is supported by the contact support; an end of the main spring is hooked on the central section of the movable contact, and the other end is fixed on the locating column of the base; an end of a release lever is hooked on the groove of the lock catch, and the other end is hooked in the sliding chute of the base; the release lever and a bi-metallic strip are interlocked and matched. The utility model overcomes the drawbacks in the prior industry and school that the assembling process is complex, the release force is nonuniform and the performance is inconsistent, and has the advantages of easy assembly, short working hours, consistent release force and steady performance.

Description

The miniature circuit breaker powder operation device

This reality is novel to relate to a kind of miniature circuit breaker powder operation device.

Existing miniature circuit breaker powder operation device all comprises the handle that is arranged in the pedestal, handle spring, connecting rod, tripping, snap close, contact is supported, main spring, bimetal leaf and moving of cooperatively interacting, fixed contact, one spring pin of handle spring leans against the pedestal inboard, another spring pin embeds handle, one end and the handle of connecting rod are hinged, when assembling, each parts need be installed on the pedestal one by one, particularly each spring all need be positioned at earlier on the pedestal, after loading onto other part, this needs to combine with part with the part of specific purpose tool with spring again, cause assembly process many, the defective of length consuming time, simultaneously because each assembly crewman's skills involved in the labour and reasons in structure, cause tripping force not of uniform size, the overall performance of single product is inconsistent.

The purpose of this utility model be solve that the assembly process of existing miniature circuit breaker powder operation device is many and complicated, the dynamics during the dropout disjunction differs, reliability is lower, the inconsistent problem of the overall performance of single product.The utility model comprises the handle that is arranged in the pedestal, handle spring, connecting rod, tripping, snap close, contact is supported, main spring, bimetal leaf and moving of cooperatively interacting, fixed contact, one spring pin of handle spring leans against the pedestal inboard, another spring pin embeds handle, one end and the handle of connecting rod are hinged, the other end and tripping are hinged, moving contact, contact support and the snap close while by spindle mounted on pedestal, wherein moving contact embeds in the contact support and by rivet and is linked to be movable the cooperation, the end that contact is supported is by riveting pipe and the hinged interlock of tripping, the end of tripping overlaps mutually with snap close, latch spring is sleeved on the boss of snap close, one side spring pin is stuck on the snap close, opposite side spring pin rests on contact and supports, one end hook of main spring hangs over the moving contact middle part, and the other end is fixed on the reference column of pedestal, and release lever one end hook hangs on the groove of snap close, the other end is hooked in the chute of pedestal, and release lever and bimetal leaf are linked.

The utility model has been simplified the assembly structure of miniature circuit breaker powder operation device greatly by above-mentioned specific design, have easy to assembly quick, consuming time less, the advantage of tripping force unanimity, clear-cut, the stable performance of being swift in motion, good reliability.

Below in conjunction with drawings and Examples detailed content of the present utility model is described.

Accompanying drawing is a structural representation of the present utility model;

As shown in the figure, the utility model comprises the handle 1 that is arranged in the pedestal 11, handle spring 23, connecting rod 2, tripping 3, snap close 4, contact supports 5, main spring 6, bimetal leaf 7 and moving of cooperatively interacting, fixed contact 8,9, one spring pin of handle spring 23 leans against pedestal 11 inboards, another spring pin embeds handle 1, one end and the handle 1 of connecting rod 2 are hinged, the other end and tripping 3 are hinged, moving contact 8, contact support 5 and snap close 4 are assemblied on the pedestal 11 by main shaft 10 simultaneously, wherein moving contact 8 embeds in the contact supports 5 and by rivet 12 and is linked to be movable the cooperation, and moving contact 8 and contact support 5 to keep suitable gap to guarantee moving contact 8 flexible motion.Contact supports an end of 5 by riveting pipe 13 and tripping 3 hinged interlocks, and the end of tripping 3 overlaps mutually with snap close 4, make handle 1 after the dropout under the effect of handle spring 23 energy freely reset and drive snap close 4 and enter tripping 3 internal locks and lump together.Latch spring 14 is sleeved on the boss 15 of snap close 4, and a side spring pin is stuck on the snap close 4, and opposite side spring pin rests on contact and supports on 5, makes tripping 3 and snap close 4 keep lock-out state under normal condition.One end hook of main spring 6 hangs over moving contact 8 middle parts, and the other end is fixed on the reference column 16 of pedestal 11, and the pressure when it both provided dynamic and static contact 8,9 to contact provides the power when threading off again.Release lever 17 1 end hooks hang on the groove 18 of snap close 4, and the other end is hooked in the chute 19 of pedestal 11, and release lever 17 is linked with bimetal leaf 7.The relative indicating device 21 of the bottom of riveting pipe 13 observation window 20 hinged and on the pedestal 11, the middle part of indicating device 21 is hinged on the pin 22 of pedestal 11 simultaneously.When overload current flow through, bimetal leaf 7 crooked drive release levers 17 slided and tangle snap close 4, behind the slight twisting resistance that has overcome latch spring 14, tripping 3 are separated with snap close 4, and dynamic and static contact was opened in 8,9 minutes, cut off the electricity supply.

Claims

1, a kind of miniature circuit breaker powder operation device, comprise the handle that is arranged in the pedestal, handle spring, connecting rod, tripping, snap close, contact is supported, main spring, bimetal leaf and moving of cooperatively interacting, fixed contact, one spring pin of handle spring leans against the pedestal inboard, another spring pin embeds handle, one end and the handle of connecting rod are hinged, the other end and the tripping (3) that it is characterized in that connecting rod (2) are hinged, moving contact (8), contact supports (5) and snap close (4) to be assemblied on the pedestal (11) by main shaft (10) simultaneously, wherein moving contact (8) embeds in the contact support (5) and by rivet (12) and is linked to be movable the cooperation, contact supports an end of (5) by riveting pipe (13) and the hinged interlock of tripping (3), the end of tripping (3) overlaps mutually with snap close (4), latch spring (14) is sleeved on the boss (15) of snap close (4), one side spring pin is stuck on the snap close (4), opposite side spring pin rests in the contact support (5), one end hook of main spring (6) hangs over moving contact (8) middle part, the other end is fixed on the reference column (16) of pedestal (11), release lever (17) one end hooks hang on the groove (18) of snap close (4), the other end is hooked in the chute (19) of pedestal (11), and release lever (17) is linked with bimetal leaf (7).

2, miniature circuit breaker powder operation device according to claim 1, it is characterized in that the relative indicating device (21) of bottom observation window (20) hinged and on the pedestal (11) of riveting pipe (13), the middle part of indicating device (21) is hinged on the pin (22) of pedestal (11) simultaneously.