CN218215182U - Multi-pole circuit breaker linkage mechanism and multi-pole circuit breaker - Google Patents

Abstract

The utility model relates to the field of low-voltage apparatus, in particular to a multi-pole circuit breaker linkage mechanism, which comprises a button, a first connecting rod and a plurality of circuit breaker pole operating mechanisms arranged side by side, wherein the button is arranged in a sliding way; each circuit breaking pole operating mechanism comprises handle pieces which are arranged in a rotating mode, and the handle pieces are connected through a universal driving shaft to rotate synchronously; the length direction of the button is the same as the parallel direction of each breaker pole operating mechanism and is opposite to each breaker pole operating mechanism, and at least one handle piece is connected with the button through a first connecting rod in a driving way; the utility model also relates to a multipole circuit breaker comprising the linkage mechanism; the multi-pole circuit breaker linkage mechanism and the multi-pole circuit breaker have the advantages of small number of parts, simple structure and good synchronism of all poles.

Description

Multi-pole circuit breaker linkage mechanism and multi-pole circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus field, concretely relates to multipole circuit breaker link gear and one kind include link gear's multipole circuit breaker.

Background

With the rapid development of the communication industry, the intelligent miniaturization trend of the circuit breaker is more and more obvious, and the size of the circuit breaker in a power distribution system is higher and higher. The existing multi-pole plug-in circuit breakers mostly adopt a plurality of independent single-phase plug-in circuit breakers in parallel and use a linkage piece to connect buttons of the single-phase plug-in circuit breakers in parallel so as to realize linkage of the single-phase plug-in circuit breakers; such a multipole circuit breaker has the following drawbacks:

1. the linkage piece is added, and the space is occupied;

2. the synchronism of each single-phase plug-in circuit breaker is poor;

3. and a common opening and closing indicating mechanism and a common locking mechanism are lacked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a multipole circuit breaker link gear and multipole circuit breaker, its spare part is small in quantity, and simple structure and each utmost point synchronism are good.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a multi-pole circuit breaker linkage mechanism comprises a button, a first connecting rod and a plurality of circuit breaker pole operating mechanisms, wherein the button is arranged in a sliding mode; each circuit breaking pole operating mechanism comprises handle pieces which are arranged in a rotating mode, and the handle pieces are connected through a universal driving shaft to rotate synchronously; the length direction of the button is the same as the parallel direction of each circuit-breaking electrode operating mechanism and is opposite to each circuit-breaking electrode operating mechanism, and at least one handle piece is connected with the button in a driving mode through a first connecting rod.

Preferably, the handle members of the two circuit breaking electrode operating mechanisms are respectively connected with the button through corresponding first connecting rods in a driving manner, and the two handle members are respectively positioned on two sides of the central position of the button in the length direction.

Preferably, the handle member of each said breaker pole operating mechanism is drivingly connected to the button by a respective first link.

Preferably, two ends of the first connecting rod are respectively connected with the button and the handle piece in a rotating mode.

Preferably, first connecting rod is U style of calligraphy structure, and it includes first connecting rod trunk and bend continuous first connecting rod forearm, first connecting rod postbrachium with first connecting rod trunk both ends respectively, and first connecting rod forearm and first connecting rod postbrachium rotate with button and handle respectively and link to each other.

Preferably, the button includes a button body and at least one button connection part, and the button connection part is rotatably connected to the first link.

Preferably, the button includes a plurality of button connecting portions, and the button connecting portions are arranged side by side in a longitudinal direction of the button, and the number of the button connecting portions is the same as the number of the breaking electrode operating mechanisms.

Preferably, the handle piece and the linkage shaft are coaxially arranged; the linkage shaft is a polygonal prism, and the handle piece is provided with a handle piece shaft hole matched with the linkage shaft.

Preferably, the operating mechanism for the circuit breaking pole comprises a handle piece, a second connecting rod, a locking piece, a tripping piece and a rotating plate, wherein the handle piece and the rotating plate are respectively arranged in a rotating mode, the locking piece and the tripping piece are respectively arranged on the rotating plate in a rotating mode and are in snap fit, the handle piece 3 is connected with the locking piece through the second connecting rod in a driving mode, and the rotating plate is used for being connected with a moving contact of the circuit breaking pole in a driving mode.

A multi-pole circuit breaker comprises the multi-pole circuit breaker linkage mechanism.

The utility model discloses a multipolar circuit breaker link gear, its a plurality of utmost point operating device that opens circuit share button is favorable to reducing spare part quantity, simplifies the structure, and each handle spare links to each other through the universal driving shaft and at least one handle spare links to each other through first connecting rod and button, has realized the synchronous closure and the disconnection of each utmost point that opens circuit.

Furthermore, the utility model discloses a multipole circuit breaker link gear, its two handle pieces link to each other with the button drive through the first connecting rod that corresponds respectively, and two handle pieces are located the length direction's of button central point respectively and put both sides, have simplified multipole circuit breaker link gear's structure on one hand, and when two ensure external force operating button, the button can be reliable, steady slip rotates in order to drive each handle piece synchronization.

The utility model discloses multipole circuit breaker, it includes link gear, its spare part is small in quantity, and simple structure and each utmost point synchronism are good.

Drawings

Fig. 1 is a schematic view of an exploded structure of the multipole circuit breaker of the present invention;

fig. 2 is a schematic view of the operating face structure of the multipole circuit breaker of the invention;

FIG. 3 is a schematic view of the construction of the base of the present invention;

FIG. 4 is a schematic view of the construction of the lid of the present invention;

fig. 5 is a schematic view of the structure of the multi-pole circuit breaker of the present invention, showing the connection relationship of the button, the first link and the handle;

fig. 6 is a schematic view of the structure of the multi-pole circuit breaker of the present invention, showing the structure of the first link;

FIG. 7 is a schematic view of the button of the present invention;

FIG. 8 is a schematic view of the installation of the indicating mechanism of the present invention;

FIG. 9 is a schematic view of the construction of an indicator of the present invention;

FIG. 10 is a perspective view of the locking mechanism of the present invention;

fig. 11 is an exploded view of the locking mechanism of the present invention.

Detailed Description

The following description will further describe the specific embodiments of the circuit breaker according to the present invention, in conjunction with the embodiments shown in the drawings. The circuit breaker of the present invention is not limited to the description of the following embodiments.

The invention relates to a circuit breaker, which comprises a circuit breaker shell, a button 1 which is slidably inserted at one end of the circuit breaker shell and at least one circuit breaker pole 14 which is arranged in the circuit breaker shell, wherein the circuit breaker pole 14 comprises a circuit breaker pole operating mechanism and a circuit breaker pole contact system, the circuit breaker pole contact system comprises a moving contact and a fixed contact which are matched for use, the moving contact is in driving connection with the circuit breaker pole operating mechanism, and the button 1 is in driving connection with the circuit breaker pole operating mechanism so as to drive the circuit breaker pole 14 to be closed or opened.

As shown in fig. 1-2 and 5-6, the circuit breaker of the present embodiment is preferably a multi-pole circuit breaker, and the circuit breaker housing is a multi-pole circuit breaker housing, and a plurality of circuit breaker poles 14 are arranged side by side in the multi-pole circuit breaker housing.

As shown in fig. 1, 3-4, the multi-pole circuit breaker housing includes a base 13 and a cover 15, and the base 13 and the cover 15 are relatively buckled to form a housing mounting cavity for mounting a plurality of breaker poles 14.

As shown in fig. 1, each of the breaker poles 14 has its breaker pole operating mechanism disposed at one end in the length direction of the breaker pole 14; the button 1 is positioned at one end of the housing of the multi-pole circuit breaker in the length direction; the breaker poles 14 are arranged in the same longitudinal direction as the multi-pole breaker case, and the direction in which the breaker poles 14 are arranged is perpendicular to the longitudinal direction of the multi-pole breaker case. Further, the bottom walls of the base 13 and the cover 15 are disposed in parallel and are respectively located at two sides of each breaker pole 14 (as shown in fig. 1, the cover 15 and the base 13 are located at the upper and lower sides of each breaker pole 14); the parallel direction of the breaker poles 14 and the length direction of the multi-pole breaker shell and the breaker poles 14 are parallel to the plane of the bottom walls of the base 13 and the cover 15; the thickness direction of the breaker poles 14 is the same as the direction in which the breaker poles 14 are arranged, and is perpendicular to the length direction of the multi-pole breaker case, and the thickness direction of the breaker poles 14 is also parallel to the width direction of the multi-pole breaker case, that is, the breaker poles are arranged in the direction of fig. 1 along the width direction of the multi-pole breaker case (as shown in fig. 1, the width direction of the multi-pole breaker case is the front-back direction).

Of course, the breaker poles 14 may be arranged side by side in the thickness direction of the multi-pole breaker case, that is, stacked up and down between the base 13 and the cover 15, and the arrangement of the push button 1 may be adjusted accordingly.

As shown in fig. 1, in the multi-pole circuit breaker, each breaker pole 14 includes a breaker pole housing for housing a breaker pole operating mechanism and a breaker pole contact system of the breaker pole 14. Further, the circuit breaker pole housing includes a first half shell and a second half shell that are relatively buckled, and the first half shell and the second half shell are buckled to form a circuit breaker pole cavity that houses the circuit breaker pole. Further, the fastening direction of the first half-shell and the second half-shell of the breaker pole housing is the same as the parallel direction of each breaker pole 14, and the parallel direction of each breaker pole 14 is parallel to the plane of the bottom walls of the base 13 and the cover 15, i.e. the fastening direction of the first half-shell and the second half-shell is perpendicular to the fastening direction of the base 13 and the cover 15.

The utility model provides an order sets gradually for every circuit breaker utmost point all is equipped with the circuit breaker utmost point cavity that half first shell and half second shell formed, half first shell, the second of a plurality of circuit breaker utmost points and forms a plurality of circuit breaker utmost point cavities that the order of half first shell, the second of again.

As another embodiment, a breaker partition plate is disposed between adjacent breaker poles 14 to partition the adjacent breaker poles 14 and ensure inter-pole insulation, a plurality of breaker partition plates are disposed side by side at intervals to partition the housing installation cavity into a plurality of breaker pole cavities, and the direction in which the breaker partition plates are disposed side by side is the same as the width direction of the multi-pole breaker housing.

Specifically, as shown in fig. 1-2 and 5-6, the circuit breaker of the present embodiment includes 4 circuit breaker poles 14 arranged side by side, and is a 4P type multi-pole circuit breaker. Of course, the number of the breaker poles 14 can be adjusted according to actual needs, for example, the number of the breaker poles 14 can also be 2 or 3 or more.

As shown in fig. 2, 5-6, the multi-pole circuit breaker comprises a multi-pole circuit breaker linkage mechanism comprising a push button 1, a first link 2 and a breaker pole operating mechanism of breaker poles 14 arranged side by side; each breaker electrode operating mechanism comprises a handle piece 3 which is rotatably arranged, and the handle pieces 3 are connected through a linkage shaft 4 to synchronously rotate; the length direction of the button 1 is the same with the parallel direction of the breaker poles 14 (also the parallel direction of the breaker pole operating mechanisms) and is opposite to the breaker poles 14 (the button 1 is also opposite to the breaker pole operating mechanisms), at least one handle piece 3 is connected with the button 1 in a driving mode through the first connecting rod 2, and the button 1 can drive all the breaker poles 14 to be synchronously closed or opened.

According to the linkage mechanism of the multi-pole circuit breaker, a plurality of circuit breaking pole operating mechanisms share one button 1, the number of parts is reduced, the structure is simplified, each handle piece 3 is connected through a linkage shaft 4, at least one handle piece 3 is connected with the button 1 through a first connecting rod 2, and synchronous closing and opening of each circuit breaking pole 14 are achieved.

As shown in fig. 1 and 3-4, the base 13 includes a base guide structure 13-0, the cover 15 includes a cover guide structure 15-1, and the base guide structure 13-0 and the cover guide structure 15-1 are matched with each other to form a button guide cavity for the button 1 to slide. Further, both sides of the button 1 are slidably engaged with the base guide structure 13-0 and the cover guide structure 15-1, respectively.

Referring to fig. 1 to 4, an end surface of the multipole circuit breaker housing in the length direction is a housing operation surface, and the housing operation surface is provided with a button installation hole 15-0 for inserting the button 1, and the button installation hole is communicated with the button guide cavity. Furthermore, the number of the button mounting holes 15-0 is 1, and the button mounting holes are arranged on the cover 15.

The breaker pole operating mechanism can be realized by the prior art, such as: the circuit breaking pole operating mechanism comprises a handle piece 3, a second connecting rod, a locking piece, a tripping piece and a rotating plate, wherein the handle piece 3 and the rotating plate are respectively arranged in a rotating mode, the locking piece and the tripping piece are respectively arranged on the rotating plate in a rotating mode and are in hasp fit, the handle piece 3 is connected with the locking piece through the second connecting rod in a driving mode, and the rotating plate is connected with a moving contact of a circuit breaking pole in a driving mode.

Each of the breaker poles 14 includes a short-circuit protection mechanism and an overload protection mechanism, and when a short-circuit or overload fault occurs in a circuit where the breaker pole 14 is located, the corresponding short-circuit protection mechanism or overload protection mechanism drives the trip piece to rotate so as to enable the trip piece to be disengaged from the lock piece, so that the breaker pole operating mechanism is tripped or opened.

In the multi-pole circuit breaker, two handle pieces 3 link to each other with button 1 drive through the first connecting rod 2 that corresponds respectively, it is also that two handle pieces 3 respectively link to each other with button 1 drive through a first connecting rod 2, and two handle pieces 3 are located button 1's length direction's central point respectively and put both sides, have once simplified multi-pole circuit breaker link gear's structure, and when guaranteeing external force operating button 1, button 1 can be reliably, steady slip in order to drive each handle piece 3 synchronous revolution.

As another embodiment, each of the handle members 3 is drivingly connected to the button 1 through the corresponding first link 2, that is, each of the handle members 3 is drivingly connected to the button 1 through one first link 2, and the number of the handle members 3 is the same as that of the first links 2, which can further improve the smoothness and reliability of the operation of the button 1, but may complicate the structure of the multi-pole circuit breaker interlocking mechanism.

As shown in fig. 6, the first link 2 is a U-shaped structure, and includes a first link trunk 2-0, and a first link front arm 2-1 and a first link rear arm 2-2 respectively connected to two ends of the first link trunk 2-0 in a bent manner, and the first link front arm and the first link rear arm are respectively connected to the button 1 and the handle member 3 in a rotatable manner. Furthermore, the first connecting rod 2 is an integrated structure formed by bending a metal rod.

As shown in fig. 5 to 7, the button 1 includes a button body 1-0 and at least one button connecting part 1-2, and the button connecting part 1-2 is adapted to be rotatably coupled to a first link 2. Further, the button connecting part 1-2 is provided with a button connecting hole for being matched with the first connecting rod front arm 2-1 of the first connecting rod 2.

In the circuit breaker of the present embodiment, the button 1 is preferably provided with a plurality of button connecting portions 1-2, and the plurality of button connecting portions 1-2 are arranged side by side at intervals along a length direction of the button 1.

Specifically, as shown in fig. 5-7, the button 1 includes four button connecting portions 1-2 arranged side by side at intervals, and at least one of the four button connecting portions 1-2 is drivingly connected to the corresponding handle member 3 through the first connecting rod 2. The number of the button connecting parts 1-2 can be increased or decreased as required.

As shown in fig. 5-6, the handle member 3 and the linkage shaft 4 are coaxially disposed. Furthermore, the linkage shaft is a 4-position polygonal prism, the handle piece 3 is provided with a handle shaft hole matched with the linkage shaft 4, and the handle shaft hole is matched with the cross section of the polygonal prism in shape so that the handle piece 3 and the linkage piece 4 can synchronously rotate.

As shown in fig. 1-2, 8-11, the multi-pole circuit breaker further comprises an indicating mechanism and a locking mechanism respectively disposed inside the housing of the multi-pole circuit breaker; the indicating mechanism is used for indicating the opening and closing state of the circuit breaker and comprises an indicating piece 11 which is arranged on a base 13 and is in driving fit with the button 1; the locking mechanism comprises a first locking state and a second locking state, the locking mechanism enables locking protrusions 20-30 of the locking mechanism to protrude outside the shell of the multi-pole circuit breaker in the first locking state so as to be in limit fit with the circuit breaker installation position to prevent the multi-pole circuit breaker from being pulled out or inserted into the circuit breaker installation position, and the locking mechanism is in limit fit with the button 1 in the second locking state to prevent the multi-pole circuit breaker from moving towards the inside of the shell of the multi-pole circuit breaker so as to prevent the multi-pole circuit breaker from being switched on.

The "circuit breaker installation site" refers to a structure for installing a circuit breaker, such as a power distribution cabinet, a distribution box, and the like.

As shown in fig. 1, the number of the indicating mechanisms and the number of the locking mechanisms are 1, and both are disposed between the housing operation surface and each breaker pole 14. Further, the indicating mechanism and the locking mechanism are both located between the housing operating face and the breaker pole housing of each breaker pole 14.

As shown in fig. 8-9, the indicator 11 is rotatably disposed in the housing of the multi-pole circuit breaker, the button 1 slides to the closing position while driving the indicator 11 to swing to the first indicating position, and the button 1 slides to the opening position while driving the indicator 11 to swing to the second indicating position, that is, the button 1 reciprocates to swing between the closing position and the opening position while driving the indicator 1 to switch between the first indicating position and the second indicating position, so as to indicate the opening and closing state of the multi-pole circuit breaker.

As shown in fig. 2, the case operating surface of the multi-pole circuit breaker case is further provided with a locking mechanism operating hole 13-10 and an indicating hole 13-11 which are respectively matched with the locking mechanism and the indicating mechanism oppositely. Further, the locking mechanism operation hole 13-10 is oppositely matched with the operation piece 22 of the locking mechanism, and the indication hole 13-11 is oppositely matched with the indication piece 11 of the indication mechanism. Further, the locking mechanism operation hole 13-10 and the indication hole 13-11 are both one and are both arranged on the base 13.

As shown in fig. 8-9, the indicating member 11 includes an indicating member shaft 11-0, a first indicating member arm 11-1, a second indicating member arm 11-2, an indicating member connecting portion 11-3 and an indicating portion 11-4, the indicating member 11 is rotatably disposed on the multi-pole circuit breaker housing through the indicating member shaft 11-0, the first indicating member arm 11-1 and the second indicating member arm 11-2 are respectively connected to the indicating member shaft 11-0 and distributed in a V-shape, and the indicating portion 11-4 is connected to the indicating member shaft 11-0 through the indicating member connecting portion 11-3; the button 1 comprises a button driving block 1-1, the button driving block 1-1 is located between the first indicating piece arm 11-1 and the second indicating piece arm 11-2 and matched with the first indicating piece arm and the second indicating piece arm respectively, and the indicating piece 11 is driven to swing in a reciprocating mode. Furthermore, the indicating part 11-4 and the indicating piece connecting part 11-3 are of an integral C-shaped structure, one end of the indicating part is connected with the indicating piece shaft 11-0, and the indicating piece connecting part 11-3, the first indicating piece arm 11-1 and the second indicating piece arm 11-2 are sequentially arranged at intervals along the circumferential direction of the indicating piece shaft 11-0; the indication portion 11-4 is fitted opposite to the indication hole 13-11 of the case of the multi-pole circuit breaker.

Specifically, as shown in fig. 8, the button 1 slides rightward, that is, slides into the case of the multi-pole circuit breaker, so that when the multi-pole circuit breaker is closed, the button 1 and the second indicator arm 11-2 cooperate to drive the indicator 11 to swing clockwise; the button 1 slides to the left, namely slides to the outside of the shell of the multi-pole circuit breaker, so that when the multi-pole circuit breaker is switched off, the button 1 and the first indicator arm 11-1 are matched to drive the indicator 11 to swing anticlockwise.

The indicating part 11-4 is provided with a color mark and/or a character mark and/or a symbol mark so as to indicate the opening and closing state of the multi-pole circuit breaker.

As shown in fig. 1 and 3, the base 13 is provided with an indicator mounting cavity 13-5 communicated with the indicator holes 13-11, an indicator shaft groove 13-1 for rotatably mounting the indicator 11 of the multi-pole circuit breaker is arranged on a side wall of the indicator mounting cavity 13-5, and two ends of an indicator shaft 11-0 of the indicator 11 are respectively and rotatably arranged in the two indicator shaft grooves 13-1. Further, the indicator mounting cavity 13-5 is provided in the base guide structure.

As shown in fig. 7, an embodiment of the button 1 is: the button 1 comprises a button main body 1-0, a button driving block 1-1 and a button connecting part 1-2, wherein the button main body 1-0 is of a rectangular plate structure, and the button driving block 1-1 and the button connecting part 1-2 are respectively arranged at one end of the button main body 1 in the width direction and are respectively positioned at two sides of the button main body 1-0.

As shown in fig. 2, 10-11, the locking mechanism includes an operating member 22 and a locking member 20 in driving engagement, and a support structure for supporting the operating member 22 and the locking member 20; the operating part 22 is acted by external force to drive the locking part 20 to switch between the first locking position and the second locking position, namely the locking mechanism switches between the first locking state and the second locking state, a user can pull the operating part 22 through the locking mechanism operating hole 13-10, the locking part 20 comprises a locking part 20-3, and the locking part 20-3 comprises a locking boss 20-30 and a locking finger 20-31; when the locking piece 20 is located at the first locking position (that is, when the locking mechanism is in the first locking state), the locking bosses 20 to 30 protrude outside the circuit breaker shell, and at this time, the button 1 can slide freely to drive the circuit breaker to switch on or switch off; when the circuit breaker is in the opening state and the locking piece 20 is located at the second locking position (namely, when the locking mechanism is in the second locking state), the locking bosses 20-30 move into the circuit breaker shell (the 'movement of the locking bosses 20-30 into the circuit breaker shell' means that the locking bosses 20-30 do not protrude outside the circuit breaker shell any more, the locking bosses 20-30 can either completely enter the circuit breaker shell or be flush with the outer side surface of the circuit breaker shell and do not protrude outside the circuit breaker shell, in other words, the locking bosses 20-30 move towards the inside of the circuit breaker shell so as not to protrude outside the circuit breaker shell), and the locking fingers 20-31 are in limit fit with the button 1 to prevent the locking fingers from sliding towards the circuit breaker shell. When the locking mechanism is in a first locking state, namely when the locking piece 20 is located at a first locking position, the locking boss 20-30 protrudes out of the shell of the circuit breaker, the locking boss 20-30 is in limit fit with the installation position of the circuit breaker to prevent the circuit breaker from being pulled out or inserted into the installation position of the circuit breaker, and at the moment, the button 1 can freely slide to switch between an opening position and a closing position to drive the circuit breaker to be switched on or switched off; when the circuit breaker is in an opening state and the locking mechanism is in a second locking state, namely the locking piece 20 is located at the second locking position, the locking boss 20-30 is moved into the circuit breaker shell, and the locking finger 20-31 is in limit fit with the button 1 to prevent the locking finger from sliding into the circuit breaker shell, namely the button 1 is prevented from sliding from an opening position to a closing position to enable the circuit breaker to be switched on, so that the button 1 is prevented from being touched and switched on by mistake in the process that the circuit breaker is inserted into a circuit breaker installation position; the locking mechanism significantly improves electrical safety.

As shown in fig. 1 and 4, the cover 15 further includes a locking hole 15-2 provided on a bottom wall thereof for the locking boss 20-30 to pass through to protrude outside the case of the multi-pole circuit breaker.

As shown in fig. 10, the locking member 20 is moved by the operating member 22 to switch between the first locking position and the second locking position; the operating member 22 is pivotally mounted on the support structure at a central portion thereof, and the operating member 22 swings between a first actuating position and a second actuating position to actuate the movement of the locking member 20. Further, the locking member 20 is driven by the operating member 22 to translate.

As a further embodiment, said locking member 20 is rotatably arranged on the support structure; and/or the operating member 22 is slidably arranged on the support structure. As long as the locking mechanism makes the locking boss 20-30 protrude out of the circuit breaker housing in the first locking state, the locking mechanism makes the locking boss 20-30 move into the circuit breaker housing in the second locking state, and the locking finger 20-31 is in limit fit with the button 1.

As shown in fig. 10-11, the operating member 22 is rotatably disposed on the support structure at a middle portion thereof, and has an operating portion 22-3 at one end thereof and a locking member 20 at the other end thereof. Further, the operating portion 22-3 is fitted opposite to the locking mechanism operating hole 13-10 of the case of the multi-pole circuit breaker.

As shown in fig. 11, the supporting structure is a separate structure, the supporting structure is located between the operating surface of the casing and the casing of the breaker pole, the supporting structure includes a supporting base 21 and a supporting cover 23, and the supporting base 21 and the supporting cover 23 are relatively buckled to form a space for installing the operating part 22 and the locking part 20; the operating member 22 is rotatably disposed between the support base 21 and the support cover 23; the locking member 20 is slidably disposed between the support base 21 and the support cover 23. Further, as shown in fig. 1 and 3, a support structure receiving cavity for receiving a support structure is provided in the base guide structure of the base 13, the support structure receiving cavity is used for receiving a locking mechanism, and the support structure receiving cavity is communicated with the locking mechanism operating hole 13-10 and is provided corresponding to the locking hole 15-2.

As a further embodiment, the support structure is constituted by a multi-pole circuit breaker casing, i.e. the operating member 22 is rotatably arranged on the multi-pole circuit breaker casing and the locking member 20 is slidably arranged on the multi-pole circuit breaker casing.

As shown in fig. 10-11, the locking member 20 further includes a locking member coupling portion 20-2 coupled to the locking portion 20-3, the support base 21 is provided with a locking member sliding groove 21-0, and the locking member coupling portion 20-2 is slidably disposed in the locking member sliding groove 21-0. Further, the locking portion 20-3 is located outside the support structure.

As shown in fig. 10 and 11, the operating member 22 is hinged to the locking member 20, one of which is provided with a hinge shaft 20-1 and the other of which is provided with a hinge hole 22-2, the hinge shaft 20-1 is movably inserted into the hinge hole 22-2, the hinge hole 22-2 is a kidney-shaped hole, the length of the hinge hole 22-2 is greater than the outer diameter of the hinge shaft 20-1 and the width of the hinge hole 22-2 is matched with the outer diameter of the hinge shaft 20-1. Further, one end of the locking member connecting part 20-2 is connected with the locking part 20-3, and the other end is provided with a hinge shaft 20-1; the operating member 22 is provided with a hinge hole 22-2, and when the operating member 22 rotates to drive the locking member 20 to translate, the hinge shaft 20-1 rotates relative to the hinge hole 22-2 and simultaneously moves relative to the hinge hole 22-2.

As other embodiments, the operating element 22 and the locking element 20 are in abutting fit, and when the operating element 22 rotates to the first action position, the operating element abuts against the locking element 20 to make the locking element translate to the first locking position; the locking mechanism further comprises a locking member return, such as a locking member return spring, to drive the locking member 20 to translate to the second locking position when the operating member 22 is rotated back to the second active position, avoiding the locking member 20.

As shown in fig. 10-11, the operating member 22 further includes a locking structure 22-4, when the operating member 22 swings to the first action position, the locking structure 22-4 is in limit fit with the supporting structure, and the operating member 22 is prevented from swinging to the second action position, so that the locking protrusion 20-30 of the locking member 20 is ensured to be stably and reliably in limit fit with the circuit breaker assembly position. Further, the locking structure 22-4 comprises two clamping feet 22-40 which are arranged side by side at intervals, the free end of each clamping foot 22-40 is provided with a clamping foot bulge 22-41, and the two clamping foot bulges 22-41 are positioned on two sides of the two clamping feet 22-40; the supporting structure is provided with a supporting clamping groove 21-3, two sides of the inlet end of the supporting clamping groove 21-3 are respectively provided with a limiting bulge which is respectively matched with the two clamping pin bulges 22-41; when the locking structure 22-4 is inserted into the supporting slot 21-3, the two clamping leg protrusions 22-41 are pressed by the two limiting protrusions, so that the two clamping legs 22-40 are elastically deformed to approach each other, and after the two clamping leg protrusions 22-41 cross the two limiting protrusions, the two clamping legs 22-40 are reset to ensure that the two clamping leg protrusions 22-41 are respectively matched with the two limiting protrusions, so that the locking structure 22-4 is prevented from being pulled out of the supporting slot 21-3.

As shown in fig. 10-11, the supporting base 21 is further provided with a supporting arc surface 21-2, and the operating part 22-3 of the operating member 22 slides along the supporting arc surface 21-2.

As shown in fig. 10-11, one embodiment of the locking element 20: the locking piece 20 comprises a hinge shaft 20-1, a locking piece connecting part 20-2 and a locking part 20-3, one end of the locking piece connecting part 20-2 is connected with the locking part 20-3, the other end of the locking piece connecting part is provided with the hinge shaft 20-1, the locking part 20-3 is integrally in an L-shaped structure, the locking part 20-3 comprises a locking finger 20-31 and a locking boss 20-30, one end of the locking finger 20-31 is respectively connected with the locking boss 20-30 and the locking piece connecting part 20-2, the locking boss 20-30 and the locking piece connecting part 20-2 are positioned on two sides of the locking finger 20-31, and the other end of the locking finger 20-31 is matched with the button 1.

As shown in fig. 10-11, one embodiment of the operating member 22 is: operating parts 22 includes operating parts installation department, operating parts connecting portion and operation portion 22-3, and the operating parts installation department is equipped with operating parts shaft hole 22-1, and operating parts connecting portion are equipped with hinge hole 22-2, and operation portion 22-3 and operating parts connecting portion set up respectively at operating parts 22 both ends, and the operating parts installation department is located operating parts 22 middle part, and operating parts locking structure 22-4 is located between operating parts installation department and the operation portion 22-3. Further, the operating portion 22-3 is an arc-shaped plate structure, and a plurality of ribs are disposed on an operating surface of the operating portion to facilitate operation.

As shown in fig. 1, the multi-pole circuit breaker of the present embodiment further includes a signal lamp 12. Furthermore, the shell operation surface of the shell of the multi-pole circuit breaker is also provided with signal lamp windows 13-12 which are matched with the signal lamp 12 oppositely. Further, the number of the signal lamp windows 13-12 is one, and the signal lamp window 13-12 is arranged on the base 13.

As shown in fig. 1, each breaker pole 14 includes a first terminal, the housing operation surface is further provided with a first wiring hole 13-4 oppositely matched with the first terminal, the housing operation surface is provided with a plurality of first wiring holes 13-4, and the plurality of first wiring holes 13-4 are respectively in one-to-one correspondence with the plurality of breaker poles 14; the shell of the multipole circuit breaker further comprises a button separation rail 13-2, and the button separation rail 13-2 is arranged between the first wiring hole 13-4 and the button mounting hole 15-0, so that the influence of a wire at the first wiring hole 13-4 on the button 1 is avoided, smooth sliding of the button 1 is ensured, and reliable opening and closing of the multipole circuit breaker are ensured. One button mounting hole 15-0 is arranged corresponding to the plurality of first wiring holes 13-4, the plurality of first wiring holes 13-4 are arranged side by side in sequence along the length direction of the button mounting hole 15-0, and the button partition 13-2 is also arranged corresponding to the plurality of first wiring holes 13-4.

The first terminal is preferably an outlet terminal of the multi-pole circuit breaker, the multi-pole circuit breaker further comprises a second terminal, the second terminal is an inlet terminal of the multi-pole circuit breaker, and the first terminal and the second terminal are respectively located at two ends of the housing of the multi-pole circuit breaker in the length direction. Further, each of the breaker poles 14 includes a first terminal and a second terminal.

As shown in fig. 1, the first terminal protrudes from the breaker pole housing, a plurality of terminal partitions are disposed in the multi-pole breaker housing near the operating surface of the housing at intervals to form a plurality of first terminal slots for accommodating the first terminals, the plurality of first terminal slots correspond to the plurality of first terminal holes 13-4 one-to-one, and the first terminals are mounted in the first terminal slots. The terminal partition of the present embodiment is provided on the bottom wall of the base 13, and preferably, the plurality of terminal partitions form a base guide structure of the base 13 on which the push button 1 slides. Said indicator mounting cavity 13-5 is disposed in one terminal spacer and said support structure receiving cavity is disposed in the other terminal spacer; of course, the indicator mounting cavity 13-5 and the support structure receiving cavity could be provided on the same terminal divider, but the structure is relatively complex.

As shown in fig. 3-4, the base 13 includes a base connection post 13-3, and the cover 15 includes a cover connection post 15-3 oppositely fitted to the base connection post 13-3. Further, one end of the base connecting column 13-3 is connected with the bottom wall of the base 13, and the other end of the base connecting column is matched with the cover connecting column 15-3; one end of the cover connecting column 15-3 is connected with the bottom wall of the cover 15, and the other end is matched with the base connecting column 13-3.

As shown in fig. 1 and 3-4, two side walls of the multi-pole circuit breaker housing perpendicular to the direction in which the multiple breaker poles 14 are arranged side by side are provided with housing limiting ribs for pressing the breaker poles 14, so that reliable installation of the breaker poles 14 in the multi-pole circuit breaker housing is ensured. Two side walls of the multi-pole circuit breaker shell, which are perpendicular to the parallel direction of the multiple breaker poles 14, are also provided with first guide structures, and the breaker pole shell is provided with a second guide structure which is in sliding positioning fit with the first guide structures, so that the breaker pole shell is installed in the multi-pole circuit breaker shell in a sliding manner. The first guide structure is a convex rib structure, the second guide structure is a groove structure, or the first guide structure is a groove structure, and the second guide structure is a convex rib structure. For example, in fig. 1, the breaker pole housing is provided with three groove structures as the second guide structures, and the base 13 and the cover 15 are correspondingly provided with three rib structures as the first guide structures, so that the assembly and positioning are facilitated. The multi-pole circuit breaker shell has the following technical effects:

1. the shell operation surface is provided with a button mounting hole 15-0, a locking mechanism operation hole 13-10, an indication hole 13-11 and a signal lamp window 13-12, so that the convenience and the safety of operating and observing the circuit breaker by a customer are obviously improved.

2. The button barrier 13-2 is arranged between the button mounting hole 15-0 and the first wiring hole 13-4, and the influence of a wire on the circuit breaker on/off due to sliding of the button 1 is avoided.

3. The base 13 and the cover 15 are connected together through the matching of the base connecting column 13-3 and the cover connecting column 15-3, so that the connection is convenient and the operation is simple.

The number of the breaker poles 14 of the multi-pole breaker can be adjusted according to actual needs, the breaker poles 14 share one button 1 to realize linkage, and the breaker poles 14 and the button 1 are installed in the same multi-pole breaker shell to realize modular design and assembly, so that the multi-pole breaker is also a modular multi-pole breaker. In addition, the indicating mechanism and the locking mechanism are arranged in the shell of the multi-pole circuit breaker as a common module of the multi-pole circuit breaker and are shared by the circuit breakers 14, the synchronism of switching-on and switching-off indication and locking operation is realized, and the number of the circuit breakers 14 is increased or reduced, so that the normal work of the indicating mechanism and the locking mechanism is not influenced.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally placed in use, and are only for convenience of description, but do not indicate that the referred device or element must have a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish one description from another, and are not to be construed as indicating relative importance.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (10)

1. A multi-pole circuit breaker linkage mechanism is characterized in that: the linkage mechanism of the multi-pole circuit breaker comprises a button (1) which is arranged in a sliding manner, a first connecting rod (2) and a plurality of circuit breaker pole operating mechanisms which are arranged side by side; each circuit breaking pole operating mechanism comprises handle pieces (3) which are arranged in a rotating mode, and the handle pieces (3) are connected through a linkage shaft (4) to rotate synchronously; the length direction of the button (1) is the same as the parallel direction of each breaker pole operating mechanism and is opposite to each breaker pole operating mechanism, and at least one handle piece (3) is connected with the button (1) in a driving mode through a first connecting rod (2).

2. The multipole circuit breaker linkage of claim 1, wherein: the handle pieces (3) of the two circuit breaking electrode operating mechanisms are respectively connected with the button (1) through corresponding first connecting rods (2) in a driving mode, and the two handle pieces (3) are respectively located on two sides of the center of the button (1) in the length direction.

3. The multipole circuit breaker linkage of claim 1, wherein: and the handle piece (3) of each circuit breaking pole operating mechanism is connected with the button (1) through the corresponding first connecting rod (2) in a driving way.

4. The multi-pole circuit breaker linkage of claim 1, wherein: two ends of the first connecting rod (2) are respectively connected with the button (1) and the handle piece (3) in a rotating way.

5. The multi-pole circuit breaker linkage of claim 4, wherein: the first connecting rod (2) is of a U-shaped structure and comprises a first connecting rod main body (2-0), a first connecting rod front arm (2-1) and a first connecting rod rear arm (2-2), wherein the first connecting rod front arm (2-1) and the first connecting rod rear arm (2-2) are respectively connected with two ends of the first connecting rod main body (2-0) in a bending mode, and the first connecting rod front arm (2-1) and the first connecting rod rear arm (2-2) are respectively connected with the button (1) and the handle piece (3) in a rotating mode.

6. The multipole circuit breaker linkage of claim 4, wherein: the button (1) comprises a button main body (1-0) and at least one button connecting part (1-2), and the button connecting part (1-2) is rotatably connected with the first connecting rod (2).

7. The multi-pole circuit breaker linkage of claim 6, wherein: the button (1) comprises a plurality of button connecting parts (1-2), the button connecting parts (1-2) are arranged side by side along the length direction of the button (1), and the number of the button connecting parts (1-2) is the same as that of the circuit breaking electrode operating mechanisms.

8. The multi-pole circuit breaker linkage of claim 1, wherein: the handle piece (3) and the linkage shaft (4) are coaxially arranged; the linkage shaft (4) is a polygonal prism, and the handle piece (3) is provided with a handle piece shaft hole matched with the linkage shaft (4).

9. The multipole circuit breaker linkage of claim 1, wherein: the circuit breaking pole operating mechanism comprises a handle piece (3), a second connecting rod, a locking piece, a tripping piece and a rotating plate, wherein the handle piece (3) and the rotating plate are respectively arranged in a rotating mode, the locking piece and the tripping piece are respectively arranged on the rotating plate in a rotating mode and are in hasp fit, the handle piece (3) is connected with the locking piece through the second connecting rod in a driving mode, and the rotating plate is used for being connected with a moving contact of a circuit breaking pole in a driving mode.

10. A multi-pole circuit breaker, characterized by: the multi-pole circuit breaker includes the multi-pole circuit breaker linkage of any of claims 1-9.

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