CN211929417U

CN211929417U - Double-breakpoint operating mechanism capable of controlling actions inside and outside and circuit breaker

Info

Publication number: CN211929417U
Application number: CN202020992063.0U
Authority: CN
Inventors: 宋新国; 宋汇
Original assignee: Guolong Electric Co ltd
Current assignee: Guolong Electric Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-11-13
Anticipated expiration: 2030-06-03

Abstract

The utility model provides a but double breakpoint operating device and circuit breaker of inside and outside control action which characterized in that: including the handle, move first assembly, move the axle assembly, two wiring boards, the handle with move and be connected through first connecting rod linkage between the first assembly, move and be connected through the linkage of second connecting rod between first assembly and the moving axle assembly, be formed with outer accuse connection structure on moving the hasp of first assembly, just it has the movable groove to correspond on the casing lateral wall to be formed with. The automatic tripping device has the advantages that the movable head assembly is arranged between the handle and the movable bridge assembly, so that the automatic tripping device has the action characteristic of the circuit breaker, not only can be controlled by external force through directly operating the handle to realize switching on and off, but also can be assembled with the circuit breaker to carry out synchronous switching on and off, and the action force (tripping force) generated by the circuit breaker drives the locking buckle in the movable head assembly to act through the external control connecting structure so as to realize internal tripping.

Description

Double-breakpoint operating mechanism capable of controlling actions inside and outside and circuit breaker

Technical Field

The utility model relates to an electrical apparatus switch field, concretely relates to can inside and outside control action double breakpoint operating device and a circuit breaker.

Background

The double-breakpoint bridge contact system is a common contact structure in the disconnecting switch, and can increase the reliability of power failure.

The utility model discloses a guide tracked modulization isolator as chinese utility model patent (CN 203423116U), it includes contact supporting piece, moving contact bridge and handle operating device, the moving contact bridge adopt the double break point structure of direct action type, but direct connection forms the linkage cooperation between its handle operating device and the contact supporting piece, during its divide-shut brake, can only come control action through operating handle.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the background art, the utility model provides a double-breakpoint operating mechanism capable of controlling actions inside and outside.

The utility model discloses the technical scheme who adopts: a double-breakpoint operating mechanism capable of controlling actions inside and outside is arranged in a shell and comprises

A handle in rotational engagement with the housing;

the movable head assembly is in rotating fit with the shell and is in linkage connection with the handle through a first connecting rod, the movable head assembly at least comprises a lock catch, an external control connecting structure is formed on the lock catch, and a movable groove is correspondingly formed in the side wall of the shell;

the movable bridge assembly is in up-and-down sliding fit with the shell and is in linkage connection with the movable head assembly through a second connecting rod, the movable bridge assembly at least comprises a movable contact bridge, and movable contacts are arranged at the left end and the right end of the movable contact bridge;

and the two wiring boards are fixed in the shell and are respectively arranged on the left side and the right side of the movable bridge assembly, and the wiring boards are provided with static contacts corresponding to the movable contacts.

The handle is provided with a central shaft matched with the shell, and the center of the central shaft is provided with an operation shaft hole.

The operation shaft hole is square.

The movable head assembly comprises

A shaft fixed within the housing;

a clamp plate rotatably mounted on the shaft;

the jump buckle is rotatably arranged on the clamping plate and is in linkage connection with the handle through a first connecting rod;

a latch rotatably mounted on the shaft;

the locking spring is arranged between the clamping plate and the lock catch and can drive the lock catch to be buckled with the jump buckle;

the contact connecting rod is rotatably arranged on the clamping plate, a first arc-shaped groove matched with the shaft is formed at one end of the contact connecting rod, and the other end of the contact connecting rod is in linkage connection with the movable bridge assembly through a second connecting rod;

and the movable spring is connected with the shell and the contact connecting rod and can drive the contact connecting rod and the clamping plate to reset and rotate.

The two sides of the lock catch are provided with a linkage shaft, the center of the linkage shaft is provided with a linkage hole, and a second arc-shaped groove corresponding to the linkage hole is formed in the shell.

The lock catch is provided with an on-off indicating piece, and the shell is provided with an indicating hole corresponding to the on-off indicating piece.

The movable bridge assembly comprises

The sliding plate is in up-and-down sliding fit with the shell and is in linkage connection with the movable head assembly through a second connecting rod, and a sliding groove is formed in the sliding plate;

the moving contact bridge is in up-and-down sliding fit with the sliding chute;

and the pressure spring is arranged between the moving contact bridge and the sliding plate and drives the moving contact bridge to move downwards.

And a plurality of horizontal grooves are formed in the side surfaces of the left side and the right side of the sliding plate.

The shell adopts a modular shell.

A circuit breaker comprises a shell, a release, a wiring mechanism and the double-breakpoint operating mechanism.

The utility model has the advantages that: by adopting the scheme, the movable head assembly is arranged between the handle and the movable bridge assembly, so that the movable head assembly has the action characteristic of the circuit breaker, the opening and closing can be controlled by external force through directly operating the handle, the synchronous opening and closing can also be carried out through assembling with the circuit breaker, and the action force (tripping force) generated by the circuit breaker drives the locking and buckling action in the movable head assembly to carry out internal tripping through the external control connecting structure.

Drawings

Fig. 1 is a schematic structural diagram of a double-breakpoint operating mechanism capable of controlling actions inside and outside according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the housing according to the embodiment of the present invention.

Fig. 3 is a schematic structural view of a handle according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a movable head assembly according to an embodiment of the present invention.

Fig. 5 is an exploded schematic view of the movable head assembly according to the embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a movable axle assembly according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a slide board according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a circuit breaker according to an embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be further explained with reference to the accompanying drawings:

as shown in the figure, the double-breakpoint operating mechanism capable of controlling actions inside and outside is installed in a shell 1 and comprises a handle 2, a movable head assembly 3, a movable bridge assembly 5 and two wiring boards 7.

The double-breakpoint operating mechanism can be used for isolating switches, various small-sized switching devices such as small circuit breakers or backup protectors and the like, and no matter the double-breakpoint operating mechanism is used for isolating switches or other electrical switching devices, the appearance of the shell 1 of the double-breakpoint operating mechanism is preferably a modular shell, namely, the shell is designed according to standard sizes, so that the double-breakpoint operating mechanism can be consistent with the shell of a miniature circuit breaker, and the double-breakpoint operating mechanism can be conveniently assembled and connected with the circuit breaker.

As shown in fig. 1-3, two sides of the handle 2 are provided with a central shaft 21, the housing 1 is formed with a mounting through hole 13 adapted to the central shaft 21, and the central shaft 21 of the handle 2 is mounted in the mounting through hole 13 of the housing 1, so that the handle 2 and the housing 1 form a rotating fit.

The center of the central shaft 21 is provided with an operation shaft hole 22, and the operation shaft hole 22 is 2.5 × 2.5 mm square, so that the handle 2 can be effectively connected with or controlled by external equipment through the square shaft. Of course, the operation shaft hole 22 may have other shapes such as a quincunx shape and a star shape.

As shown in fig. 1-2 and 6-7, the moving bridge assembly 5 includes a sliding plate 52, a moving contact bridge 51, and a pressure spring 53, the sliding plate 52 is in up-and-down sliding fit with the housing 1, a sliding groove 521 is formed at the upper half portion of the sliding plate 52, a groove is formed at the middle position of two side edges of the moving contact bridge 51, so that the middle portion of the moving contact bridge 51 is adapted to the sliding groove 521, the moving contact bridge 51 is in up-and-down sliding fit with the sliding groove 521, and moving contacts 511 are disposed at the left and right ends of the moving contact bridge 51; the pressure spring 53 is arranged between the movable contact bridge 51 and the sliding plate 52 and drives the movable contact bridge 51 to move downwards, and the pressure spring 53 is not only used for fixing the movable contact bridge 51, but also used for improving the over travel distance of the movable contact bridge 51.

The two wiring boards 7 are fixed in the shell 1 and are respectively arranged at the left side and the right side of the movable bridge assembly 5, the wiring boards 7 are provided with static contacts 71 corresponding to the movable contacts 511, when the sliding board 52 slides downwards to enable the movable contacts 511 on the movable contact bridge 51 to be in contact with the static contacts 71 on the wiring boards 7, the connection is switched on, and when the sliding board 52 slides upwards to enable the movable contacts 511 on the movable contact bridge 51 to be separated from the static contacts 71 on the wiring boards 7, the switching-off is switched off.

The side surfaces of the left side and the right side of the lower half part of the sliding plate 52 are provided with a plurality of horizontal grooves 522, the sliding plate 52 separates the two wiring boards 7 on the left side and the right side, a better isolation arc breaking effect is achieved during breaking, and the horizontal grooves 522 are arranged, so that the creepage distance is further increased, and the safety and the reliability are higher.

As shown in fig. 1-2 and 4-5, a moving head assembly 3 is disposed between the handle 2 and the moving bridge assembly 5, the moving head assembly 3 has a structure similar to a circuit breaker operating mechanism, so that it has the operating characteristics of a circuit breaker, and the moving head assembly 3 includes a shaft 31, a clamping plate 32, a jumper 33, a latch 34, a latch spring 35, a contact link 36, and a moving spring 37.

The shaft 31 is fixed in the housing 1, the shaft 31 is sleeved with the clamping plate 32, the shaft 31 can rotate, the jump buckle 33 can be rotatably installed on the clamping plate 32 and is linked with the handle 2 through the first connecting rod 4, the lock catch 34 is sleeved on the shaft 31 and can rotate along the shaft 31, the lock catch spring 35 is a torsion spring, the shaft 31 is sleeved with the torsion spring, two torsion legs of the torsion spring abut against the clamping plate 32 and the lock catch 34 respectively, the lock catch 34 and the jump buckle 33 can be driven to be buckled, the contact connecting rod 36 is rotatably installed on the clamping plate 32, one end of the contact connecting rod 36 is provided with a first arc-shaped groove 361 matched with the shaft 31, the other end of the contact connecting rod is linked with the sliding plate 52 of the movable bridge assembly 5 through the second connecting rod 6, the movable spring 37 is a tension spring, two ends of the movable spring are respectively connected with the housing 1 and the contact connecting rod 36, when the movable spring 37 is used for ensuring, when tripping, the movable spring 37 can drive the contact connecting rod 36 and the clamping plate 32 to rapidly reset and rotate to realize brake opening.

The lock catch 34 is formed with an external control connection structure, the side wall of the housing 1 is correspondingly formed with a movable groove, specifically, the external control connection structure is a linkage shaft 341 arranged at two sides of the lock catch 34, the center of the linkage shaft 341 is provided with a linkage hole 342, and the movable groove is a second arc-shaped groove 11 arranged on the housing 1.

The movable head assembly 3 is arranged between the handle 2 and the movable bridge assembly 5, so that the movable head assembly 3 has the action characteristic of a circuit breaker, the movable head assembly 3 is driven by the handle 2 to act through manual operation of the handle 2, the movable head assembly 3 drives the movable bridge assembly 5 to act to realize opening and closing, the movable head assembly can be assembled with the circuit breaker, and the circuit breaker or an electric leakage mechanism drives the lock catch 34 to release through an external control connecting structure on the lock catch 34 to break.

In addition, an on-off indicator 38 is integrally arranged on the lock catch 34, an indicating hole 12 corresponding to the on-off indicator 38 is arranged on the shell 1, and the on-off condition can be conveniently observed through the on-off indicator 38.

By adopting the double-breakpoint operating mechanism capable of controlling actions internally and externally, the double-breakpoint operating mechanism can be controlled by external force through the handle and the operating shaft holes on the handle, such as intelligent reclosing, automatic reclosing, manual operation and the like, so that the actions of closing and disconnecting can be realized; the novel electric leakage protection device can also be spliced with more circuit breakers, such as a leakage release and a backup protector, and then synchronous switching-on and switching-off are carried out, handles and lock catches between the circuit breakers are linked through a connecting rod, and when the circuit breakers generate action force (tripping force), the two inner parts of the lock catches in the moving head assembly can be driven to trip through the linkage force of the connecting rod.

As shown in fig. 7, a circuit breaker includes a housing 1, a release, a wiring mechanism 8 and the above-mentioned double-breakpoint operating mechanism, and since the above-mentioned double-breakpoint operating mechanism has a better arc isolation effect, it is not necessary to set an arc extinguishing chamber, and only a release mechanism, such as a release, needs to be added, and can be directly used as a small circuit breaker, so that the structure is simple and the cost is low.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

Claims

1. The utility model provides a but double-breakpoint operating device of inside and outside control action installs in casing (1), its characterized in that: comprises that

A handle (2) which is rotationally engaged with the housing (1);

the movable head assembly (3) is in rotating fit with the shell (1) and is in linkage connection with the handle (2) through a first connecting rod (4), the movable head assembly (3) at least comprises a lock catch (34), an external control connecting structure is formed on the lock catch (34), and a movable groove is correspondingly formed in the side wall of the shell (1);

the movable bridge assembly (5) is in up-and-down sliding fit with the shell (1) and is in linkage connection with the movable contact assembly (3) through a second connecting rod (6), the movable bridge assembly (5) at least comprises a movable contact bridge (51), and movable contacts (511) are arranged at the left end and the right end of the movable contact bridge (51);

and the two wiring boards (7) are fixed in the shell (1) and are respectively arranged at the left side and the right side of the movable bridge assembly (5), and the wiring boards (7) are provided with static contacts (71) corresponding to the movable contacts (511).

2. The double-breakpoint operating mechanism capable of controlling actions internally and externally according to claim 1, wherein: the handle (2) is provided with a central shaft (21) matched with the shell (1), and the center of the central shaft (21) is provided with an operation shaft hole (22).

3. The double-breakpoint operating mechanism capable of controlling actions internally and externally according to claim 2, wherein: the operation shaft hole (22) is square.

4. The double-breakpoint operating mechanism capable of controlling actions internally and externally according to claim 1, wherein: the movable head assembly (3) comprises

A shaft (31) fixed in the housing (1);

a clamp plate (32) rotatably mounted on the shaft (31);

the jump buckle (33) is rotatably arranged on the splint (32) and is linked with the handle (2) through a first connecting rod (4);

a lock catch (34) rotatably mounted on the shaft (31);

the lock catch spring (35) is arranged between the clamping plate (32) and the lock catch (34) and can drive the lock catch (34) to be buckled with the jump buckle (33);

the contact connecting rod (36) is rotatably arranged on the clamping plate (32), one end of the contact connecting rod (36) is provided with a first arc-shaped groove (361) matched with the shaft (31), and the other end of the contact connecting rod is in linkage connection with the movable bridge assembly (5) through a second connecting rod (6);

and the movable spring (37) is connected with the shell (1) and the contact connecting rod (36) and can drive the contact connecting rod (36) and the clamping plate (32) to reset and rotate.

5. The double-breakpoint operating mechanism capable of controlling actions internally and externally according to claim 4, wherein: the two sides of the lock catch (34) are provided with a linkage shaft (341), the center of the linkage shaft (341) is provided with a linkage hole (342), and a second arc-shaped groove (11) corresponding to the linkage hole (342) is formed on the shell (1).

6. The double-breakpoint operating mechanism capable of controlling actions internally and externally according to claim 4, wherein: an on-off indicating piece (38) is arranged on the lock catch (34), and an indicating hole (12) corresponding to the on-off indicating piece (38) is formed in the shell (1).

7. The double-breakpoint operating mechanism capable of controlling actions internally and externally according to claim 1, wherein: the movable bridge assembly (5) comprises

The sliding plate (52) is in up-and-down sliding fit with the shell (1) and is in linkage connection with the movable head assembly (3) through a second connecting rod (6), and a sliding groove (521) is formed in the sliding plate (52);

a moving contact bridge (51) which is in up-and-down sliding fit with the sliding chute (521);

and the compression spring (53) is arranged between the movable contact bridge (51) and the sliding plate (52) and drives the movable contact bridge (51) to move downwards.

8. The double-breakpoint operating mechanism capable of controlling actions internally and externally according to claim 7, wherein: the side surfaces of the left side and the right side of the sliding plate (52) are provided with a plurality of horizontal grooves (522).

9. The double-breakpoint operating mechanism capable of controlling actions internally and externally according to claim 1, wherein: the shell (1) is a modular shell.

10. A circuit breaker, characterized by: comprising a housing (1), a trip unit, a connection mechanism and a double break point operating mechanism according to any of claims 1-9.