CN212182251U - Mechanism for remotely operating circuit breaker - Google Patents

Abstract

A mechanism for remotely operating a circuit breaker comprises a cabinet body, wherein the circuit breaker is arranged in the cabinet body, and the swinging of a handle of the circuit breaker can be controlled by a remote operating mechanism; remote operation mechanism is including handle mechanism, drive mechanism, flexible axle and the shifter that connects gradually, handle mechanism sets up outside the cabinet body, and operating handle mechanism makes the flexible axle cooperate with the operation circuit breaker handle with the shifter under drive mechanism's effect, the circuit breaker includes first circuit breaker and second circuit breaker, the stroke length of first circuit breaker handle is less than the stroke length of second circuit breaker handle, is equipped with the stroke compensation structure that is used for compensating the stroke length of first circuit breaker handle and the stroke length difference of second circuit breaker handle on remote operation mechanism. The utility model discloses a mechanism of remote operation circuit breaker avoids occuping too much space and mutual interference, has reduced personnel's operation degree of difficulty and installation cost.

Description

Mechanism for remotely operating circuit breaker

Technical Field

The utility model relates to a low pressure moulded case circuit breaker remote operation mechanism, concretely relates to remote operation circuit breaker's mechanism.

Background

Molded case circuit breakers are used to protect electrical circuits from overcurrent conditions and include a pair of separable contacts that can be operated to set a handle on the front face of the circuit breaker housing or automatically tripped depending on the current conditions. In order to ensure the safety of operators, the molded case circuit breaker is usually installed in a cabinet body, and the operators can open and close the circuit breaker without directly contacting a circuit breaker handle through a remote operation device. However, when the circuit breaker handle provided in the cabinet body has different stroke lengths, the existing remote operation device does not have a mechanism for coordinating the stroke of the circuit breaker handle, and thus it is necessary to operate the circuit breaker in the cabinet body using a plurality of remote operation devices, but the provision of a plurality of remote operation devices has the following disadvantages: firstly, a plurality of remote operation devices occupy more space in the cabinet body; secondly, a plurality of remote operation systems are easy to interfere with each other, so that the action delay of the circuit breaker is easy to cause; thirdly, the plurality of remote operation devices are not beneficial to operation of operators, and the complicated operation is easy to cause human errors; fourthly, the cost of the plurality of remote operation devices is high.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a remote operation circuit breaker's that reliability is high, application scope is wide mechanism.

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

a mechanism for remotely operating circuit breakers comprises a cabinet body, wherein at least two circuit breakers are installed in the cabinet body, and the swinging of a handle of each circuit breaker can be controlled by one remote operating mechanism to realize the closing or opening of the circuit breaker; the remote operating mechanism comprises a handle mechanism, a transmission mechanism, a flexible shaft and a conversion mechanism which are connected in sequence,

the internal circuit breaker of cabinet includes first circuit breaker and second circuit breaker at least, the stroke length of first circuit breaker handle is less than the stroke length of second circuit breaker handle, is equipped with the stroke compensation structure that is used for compensating the stroke length of first circuit breaker handle and the stroke length difference of second circuit breaker handle on remote operating mechanism.

Further, the switching mechanism includes first conversion mechanism and the second conversion mechanism with first circuit breaker handle and the coupling of second circuit breaker handle respectively, and the flexible shaft includes first drive end, the second drive end that is connected with first conversion mechanism, second conversion mechanism respectively, and the motion stroke that the operating handle mechanism drove the first drive end and the second drive end of flexible shaft equals be equipped with the stroke compensation structure that is used for compensating the stroke length of first circuit breaker handle and the stroke length difference of second circuit breaker handle on the first conversion mechanism.

Further, the first conversion mechanism comprises a first sliding mechanism and a stroke compensation structure matched with the first sliding mechanism, the stroke compensation structure comprises a third sliding mechanism, the first driving end of the flexible shaft is connected with the third sliding mechanism, and the third sliding mechanism drives the first breaker handle through the first sliding mechanism; the second switching mechanism comprises a second sliding mechanism, and the second driving end of the flexible shaft drives the second breaker handle through the second sliding mechanism;

after the first sliding mechanism stops moving or before the first sliding mechanism starts moving, the third sliding mechanism can be driven by the first driving end to move relative to the first sliding mechanism, so that the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle is compensated.

Further, the first sliding mechanism of the first conversion mechanism comprises a first supporting panel and a first sliding block which can slide on the first supporting panel, and the third sliding mechanism comprises a push plate which can slide relative to the first sliding block;

the first sliding block can slide on the first supporting panel and is used for operating a first breaker handle, the push plate is provided with a first connecting portion fixedly connected with the first driving end, after the first sliding block stops sliding relative to the first supporting panel or before the first sliding block slides relative to the first supporting panel, the push plate can move relative to the first sliding block under the action of the first driving end so as to compensate the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle, and the movement stroke of the first driving end and the movement stroke of the second driving end are equal.

Further, the second sliding mechanism of the second conversion mechanism comprises a second supporting panel and a second sliding block capable of sliding on the second supporting panel, and the second driving end of the flexible shaft is fixedly connected with the second sliding block.

Furthermore, the first supporting panel is arranged on the front surface of the first circuit breaker, a first sliding structure is arranged between the first supporting panel and the first sliding block, a first opening parallel to the first sliding structure is arranged on the first supporting panel, and the first opening is used for the first circuit breaker handle to pass through and can swing in the first opening; the first slider is provided with a first operating part, and when the first slider slides relative to the first supporting panel, the first operating part is used for driving the first breaker handle to act to realize the disconnection or the connection of the breaker.

Furthermore, the first sliding structure comprises a first sliding chute arranged on the first supporting panel and a fixed shaft arranged on the first sliding block and used as a first sliding part, and the fixed shaft extends into the first sliding chute to be in sliding fit; be equipped with the bar guide way in the push pedal, be equipped with the guide part on the first slider, the guide part stretches into bar guide way sliding fit.

Further, the length of the strip-shaped guide groove is the difference between the movement stroke lengths of the first breaker handle and the second breaker handle.

Furthermore, the first supporting panel is rectangular as a whole, a first mounting part is formed by bending the edge of the first supporting panel towards the first circuit breaker, and the first mounting part is used for mounting the first supporting panel on the first circuit breaker; a first opening for a first breaker handle to pass through is formed in the middle of the first supporting panel, a first sliding groove is formed in one side of the first opening in parallel and used for being in sliding fit with the first sliding block; be provided with the first support that is used for supplementary fixed flexible axle at first supporting panel, first support vertical fixation is in one side of first supporting panel and relative with the push pedal, is equipped with the first assembly groove that dodges the hole that can supply the push pedal to pass and supply the first drive end of flexible axle to pass on first support, and first assembly groove is the arc wall that sets up at first support edge, and first assembly groove and first connecting portion keep the central axis to coincide mutually, makes the first drive end of flexible axle can be linear motion after wearing out first assembly groove.

Further, first slider has the both sides that the width differs, and the one side edge of first slider broad can lean on with first support on the first supporting panel counterbalance, and the middle part of first slider is equipped with the recess and regards as first operation portion, the edge of both sides is crooked towards first supporting panel about the recess, is equipped with the fixed axle as first sliding part in the narrower one side of first slider, is equipped with the fixed axle as the guide part in the one side of first slider broad.

Further, the push pedal is wholly strip-shaped, and the one end bending type of push pedal becomes first connecting portion, and first connecting portion are used for with first drive end fixed connection, are equipped with the bar guide way in the middle part of push pedal and are used for with first slider sliding fit.

Furthermore, the second supporting panel is arranged on the front surface of the second circuit breaker, a second sliding structure is arranged between the second supporting panel and the second sliding block, so that the second sliding block can slide on the second supporting panel, a second opening parallel to the second sliding structure is arranged on the second supporting panel, and a handle of the second circuit breaker can pass through the second opening and can swing in the second opening; the second slider is provided with a second connecting part and a second operating part, and when the second slider and the second supporting panel slide relatively, the second operating part is used for operating the opening or closing of the second breaker handle.

Further, drive mechanism includes the third support and rotates the driving medium that supports on the third support, it is internal that the third support supports to be fixed in the cabinet, and the driving medium rotates through a pivot and installs on the third support, the one end and the handle mechanism fixed connection of driving medium, and the other end of driving medium rotates with the link of flexible axle to be connected, and operating handle mechanism makes the driving medium revolve the pivot rotation under handle mechanism's drive, and the flexible axle of being connected with the driving medium moves and drive shifter mechanism makes the circuit breaker handle closed or break off under the rotation of driving medium at the cabinet body.

Further, the whole triangle-shaped that is of driving medium, the first angle and the handle mechanism fixed connection of driving medium, the second angle and the third support of driving medium rotate through a pivot to be connected, and the third angle of driving medium rotates with the link of flexible axle to be connected.

Further, handle mechanism includes the flange and rotates the handle of connection on the flange, the flange sets up on the lateral wall of the cabinet body, is equipped with the connecting rod in the inside of flange, the connecting rod passes the lateral wall of the cabinet body and stretches into the internal portion of cabinet, and the one end of connecting rod rotates as the handle of connecting outer end and the external portion of cabinet to be connected, and the other end of connecting rod is as connecting inner and the internal transmission fixed connection of cabinet, and when operating handle moved to the positive direction, connect the inner and move to the direction of keeping away from the flange, when operating handle rotated to the reverse direction, connect the outer end and move to the direction that is close to the.

Further, the first conversion mechanism comprises a first sliding mechanism provided with a stroke compensation mechanism, the first sliding mechanism comprises a first sliding block provided with a first operation part, and a stroke compensation groove is formed in the first operation part;

the first conversion mechanism comprises a first supporting panel and a first sliding block, the first supporting panel is arranged on the front face of the first circuit breaker, a first sliding structure is arranged between the first supporting panel and the first sliding block, a first opening parallel to the first sliding structure is formed in the first supporting panel, and a handle of the first circuit breaker can penetrate through the first opening and can swing in the first opening; the first slider is provided with a first connecting part which is fixedly connected with the first driving end; the first slider is provided with a first operating part, a swing space is reserved in the swing direction of the first breaker handle of the first operating part to serve as a stroke compensation groove, the first operating part is of a groove structure, the stroke compensation grooves are symmetrically arranged on two sides of the first operating part, and the groove structure of the first operating part is communicated with the stroke compensation groove to form an integrated first groove.

Further, the shifter includes first conversion mechanism and the second shifter of coupling with first circuit breaker handle and second circuit breaker handle respectively, the flexible shaft includes the drive end of being connected with the shifter and the link of being connected with drive mechanism, and the flexible shaft of connection between drive mechanism and first conversion mechanism is equipped with the stroke compensation structure, and operating handle mechanism drives the flexible shaft motion, and the stroke compensation structure is used for compensating the stroke length of first circuit breaker handle and the stroke length difference of second circuit breaker handle.

Furthermore, the flexible shaft comprises a first connecting end and a second connecting end, the first connecting end and the second connecting end are respectively connected with the transmission mechanism, and the transmission mechanism is provided with a stroke compensation structure for compensating the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle; the transmission mechanism comprises a stroke compensation transmission part and a transmission part, a stroke compensation groove is formed in the stroke compensation transmission part, the first connecting end is in sliding fit with the stroke compensation groove and used for compensating stroke difference between circuit breaker handles, and the second connecting end is rotatably connected with the transmission part.

The utility model discloses a mechanism of remote operation circuit breaker, a plurality of circuit breakers of the internal setting of cabinet are closed and the disconnection through a remote operation device control to remote operation device is equipped with stroke compensation structure, when the internal circuit breaker handle motion stroke of cabinet is inconsistent, compensate the motion stroke difference between each circuit breaker handle through stroke compensation structure, realize that a plurality of circuit breakers control through a remote operation device, avoid occuping too much space and mutual interference, personnel's operation degree of difficulty and installation cost have been reduced.

In addition, a stroke compensation mechanism is arranged on the first conversion mechanism, so that the connection difficulty between the transmission mechanism and the flexible shaft can be simplified on the basis of meeting the compensation stroke. The cabinet is internally provided with a first support, a second support and a third support which are used for assisting in fixing the flexible shaft, so that the flexibility is prevented from generating redundant swing.

Drawings

Fig. 1-2 are schematic structural views of a mechanism for remotely operating a circuit breaker according to the present invention;

fig. 3 is a schematic structural diagram of a mechanism of a remote-operated circuit breaker of the present invention (including only a first circuit breaker);

fig. 4-5 are schematic operational views of a mechanism for remotely operating a circuit breaker according to the present invention;

fig. 6 is a schematic structural diagram of a first switching mechanism in a mechanism of a remote-operated circuit breaker according to the present invention;

fig. 7 is a schematic structural diagram of a second switching mechanism in the mechanism of the remote-operated circuit breaker according to the present invention;

fig. 8-9 are schematic structural views of a flexible shaft in a mechanism for a remote operated circuit breaker according to the present invention; fig. 10 is a schematic structural diagram of a handle mechanism and a transmission mechanism in a mechanism of the remote-operated circuit breaker according to the present invention (installed on the right side wall of the cabinet);

fig. 11 is a schematic structural diagram of a handle mechanism and a transmission mechanism (installed on the left side wall of the cabinet) in the mechanism of the remote-operated circuit breaker according to the present invention;

fig. 12 is a schematic structural diagram of a transmission member in a mechanism of a remote-operated circuit breaker according to the present invention;

fig. 13 is a schematic structural diagram of a link in a mechanism for remotely operating a circuit breaker according to the present invention;

fig. 14 is a schematic structural view of a fastening bolt in a mechanism of a remote-operated circuit breaker according to the present invention;

fig. 15 is a schematic structural diagram of a stroke compensation connector and a connector in a mechanism of a remote-operated circuit breaker according to the present invention.

Detailed Description

The following further describes a specific embodiment of a mechanism for remotely operating a circuit breaker according to the present invention, with reference to the embodiments shown in fig. 1 to 15. The mechanism of the remote-operated circuit breaker of the present invention is not limited to the description of the following embodiments.

A mechanism for remotely operating a circuit breaker comprises a closed cabinet body 1, wherein at least two circuit breakers are installed on one side wall in the cabinet body 1, and the swinging of a handle of each circuit breaker can be controlled by a remote operating mechanism to realize the closing or opening of each circuit breaker; remote operation mechanism is including handle mechanism 7, drive mechanism, flexible shaft 5 and the shifter that connects gradually, handle mechanism 7 sets up outside the cabinet body 1, and flexible shaft 5 sets up in the cabinet body 1 with drive mechanism and shifter, and the one end that flexible shaft 5 and drive mechanism are connected is as link 53, and the one end that flexible shaft 5 and shifter are connected is as the drive end, and handle mechanism 7 is connected with flexible shaft 5's link 53 through the drive mechanism that sets up on cabinet body 1 lateral wall, and operating handle mechanism 7 makes flexible shaft 5 make the drive end cooperate with the operation circuit breaker handle with the shifter under drive mechanism's effect.

The circuit breaker in the cabinet body 1 at least includes first circuit breaker 21 and second circuit breaker 22, the stroke length of first circuit breaker handle is less than the stroke length of second circuit breaker handle, is equipped with the stroke compensation structure that is used for compensating the stroke length of first circuit breaker handle and the stroke length difference of second circuit breaker handle on remote operation mechanism.

As shown in the first embodiment shown in fig. 1 to 14, the plurality of circuit breakers in the cabinet 1 at least include a first circuit breaker 21 and a second circuit breaker 22, the number of the first circuit breaker 21 and the second circuit breaker 22 is at least one, and the first circuit breaker handle and the second circuit breaker handle have different swing strokes, the switching mechanism includes a first switching mechanism 3 and a second switching mechanism 4 respectively coupled with the first circuit breaker handle and the second circuit breaker handle, the flexible shaft 5 includes a first driving end 51 and a second driving end 52 respectively connected with the first switching mechanism 3 and the second switching mechanism 4; first conversion mechanism 3 sets up on first circuit breaker 21, and second conversion mechanism 4 sets up on second circuit breaker 22 be equipped with the stroke compensation structure that is used for coordinating circuit breaker handle swing stroke on the first conversion mechanism 3, the motion stroke that operating handle mechanism 7 drove first drive end 51 and second drive end 52 of flexible axle 5 equals, and the motion stroke of first circuit breaker handle is less than the motion stroke of second circuit breaker handle, and the stroke compensation structure is used for compensating the stroke length difference of first circuit breaker handle and second circuit breaker handle.

A preferred embodiment of the stroke compensation structure is that the first conversion mechanism 3 includes a first sliding mechanism and a stroke compensation structure matched with the first sliding mechanism, the stroke compensation structure includes a third sliding mechanism, the first driving end 51 of the flexible shaft 5 is connected with the third sliding mechanism, and the third sliding mechanism drives the first breaker handle through the first sliding mechanism; the second conversion mechanism 4 comprises a second sliding mechanism, and the second driving end 52 of the flexible shaft 5 drives the second breaker handle through the second sliding mechanism; before the first sliding mechanism starts to move, the third sliding mechanism can be continuously driven by the first driving end 51 to move relative to the first sliding mechanism, so that the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle is compensated.

As shown in fig. 6, the first conversion mechanism 3 includes a first sliding mechanism, the first sliding mechanism includes a first support panel 31 and a first sliding block 32 that can slide on the first support panel 31, a first sliding structure is provided between the first sliding block 32 and the first support panel 31 for sliding fit of the first sliding block and the first support panel, and the third sliding mechanism includes a push plate 33 that can slide relative to the first sliding block 32. The first supporting panel 31 is disposed on the front surface of the first circuit breaker 21, the first sliding block 32 is disposed above the first supporting panel 31, the push plate 33 is disposed above the first sliding block 32, the first sliding block 32 is disposed between the first supporting panel 31 and the push plate 33, the push plate 33 can slide on the first sliding block 32 in a static state, the first sliding block 32 can slide on the first supporting panel 31 for operating the first circuit breaker handle, the push plate 33 is provided with a first connecting portion 331 fixedly connected with the first driving end 51, after the first sliding block 32 stops sliding relative to the first supporting panel 31 or before the first sliding block 32 slides relative to the first supporting panel 31, the push plate 33 can move relative to the first sliding block 32 under the action of the first driving end 51, the movement of the push plate 33 relative to the first sliding block 32 compensates the difference between the stroke length of the first circuit breaker handle and the stroke length of the second circuit breaker handle, ensuring equal movement strokes of the first and second driving ends 51, 52.

The relative sliding of the first slider 32 and the push plate 33 is matched with a strip-shaped guide groove 332 through a guide part 323, the guide part 323 and the strip-shaped guide groove 332 are respectively arranged on the first slider 32 and the push plate 33, preferably, a strip-shaped guide groove 332 is arranged on the push plate 33, the guide part 323 is arranged on the first slider 32, the length of the strip-shaped guide groove 332 is preferably the difference between the moving stroke lengths of the first breaker handle and the second breaker handle, and when the first slider 32 is in a static state, namely, before the first slider 32 starts to move or after the first slider 32 stops moving, the first driving end 51 drives the push plate 33 to move relative to the first slider 32, and at the same time, the guide part 323 slides along the strip-shaped guide groove 332. It is of course also possible to provide the guide portion 323 on the push plate 33 and the strip-shaped guide groove 332 on the first slider 32.

As shown in fig. 7, the second conversion mechanism 4 includes a second sliding mechanism, the second sliding mechanism includes a second support panel 41 and a second slider 42 that can slide on the second support panel 41, a second sliding structure is provided between the second slider 42 and the second support panel 41, the second support panel 41 is disposed on the front surface of the second circuit breaker 22, the second driving end 52 of the flexible shaft 5 is fixedly connected to the second slider 42, and when the handle mechanism 7 is operated to move the flexible shaft 5 in the cabinet 1, the second slider 42 slides on the second support panel 41 under the action of the second driving end 52.

The utility model discloses a remote operation device includes first conversion mechanism and second conversion mechanism, through be equipped with stroke compensation structure on first conversion mechanism, when the internal circuit breaker handle motion stroke of cabinet is inconsistent, compensates the motion stroke difference between each circuit breaker handle through stroke compensation structure, realizes that a plurality of circuit breakers control through a remote operation device, avoids occuping too much space and interference each other, has reduced personnel's operation degree of difficulty and installation cost. Meanwhile, the stroke compensation structure is arranged on the conversion mechanism, so that the connection difficulty of the transmission mechanism and the flexible shaft can be simplified.

In this embodiment, compensation is achieved by the first driving end 51 driving the push plate 33 to move relative to the first slider 32 before the first slider 32 starts moving or after the movement stops. The time of the push plate 33 moving relative to the first slider 32 depends on the relative position of the first breaker handle and the second breaker handle, and the time of the push plate 33 moving is later than the first slider 32 or earlier than the first slider 32, specifically:

when the first slider 32 and the second slider 42 move simultaneously, the first slider 32 stops in advance after the first breaker handle is operated because of the short stroke of the first breaker handle, and the push plate 33 starts to slide relatively for compensating the stroke difference until the second slider 42 stops simultaneously after the second breaker handle is operated; when the second sliding block 42 and the pushing plate 33 move simultaneously, the relative sliding of the pushing plate 33 is used for compensating the stroke difference, after the stroke difference compensation is finished, the relative movement of the pushing plate 33 stops, and at the moment, the first sliding block 32 starts to move to operate the first breaker handle until the second sliding block 42 finishes operating the second breaker handle and then stops moving together.

The first conversion mechanism 3 comprises a first support panel 31, a first slider 32 and a push plate 33, the first support panel 31 is arranged on the front surface of the first circuit breaker 21, a first sliding structure is arranged between the first support panel 31 and the first slider 32, a first opening 311 parallel to the first sliding structure is arranged on the first support panel 31, and the first opening 311 is used for a first circuit breaker handle to pass through and swing in the first opening 311; the first sliding block 32 is provided with a first operating part 321, and when the first sliding block 32 and the first supporting panel 31 slide relatively, the first operating part 321 is used for driving a first breaker handle to act to realize the opening or closing of the breaker; the push plate 33 is in sliding fit with the first sliding block 32, after the first sliding block 32 stops moving or before the first sliding block 32 starts moving, the push plate 33 can be continuously driven by the first driving end 51 to move relative to the first sliding block 32, and the relative movement of the push plate 33 enables the movement stroke of the first driving end 51 to be equal to the movement stroke of the second driving end, so that the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle is compensated.

As an example, the first sliding structure is that the first sliding slot 312 is provided on the first supporting panel 31, the first connecting portion 331 and the strip-shaped guide slot 332 are provided on the push plate 33, a first operating portion 321 opposite to the first opening 311 is provided at the middle of the first slider 32, a first sliding portion 322 and a guide portion 323 are respectively provided at both sides of the first operating portion 321, the first sliding portion 322 is slidably engaged with the first sliding groove 312 provided on the first support panel 31, the guide portion 323 is slidably engaged with the strip-shaped guide groove 332 provided on the push plate 33, before the first slider 32 stops moving on the first support panel 31 or starts moving, the guide 323 is slidably fitted with the strip-shaped guide groove 332 for equalizing the movement strokes of the first driving end 51 and the second driving end 52, thereby compensating for the difference in stroke length between the first circuit breaker handle and the second circuit breaker handle. In this embodiment, the first sliding structure includes a first sliding slot 312 disposed on the first supporting panel 31 and a fixing shaft disposed on the first sliding block 32 as a first sliding portion 322, and the fixing shaft extends into the first sliding slot 312 for sliding fit; of course, as another embodiment, the first sliding structure may be that the first sliding portion 322 is provided on the first support panel 31 and the first sliding chute 312 is provided on the first sliding block 32.

The first converting mechanism 3 is best assembled as shown in fig. 6, the first slider 32 is located between the first supporting panel 31 and the push plate 33, a fixed shaft facing the first supporting panel 31 is installed at one side of the first slider 32 as a first sliding portion 322, a fixed shaft facing the push plate 33 is installed at the other side of the first slider 32 as a guide portion 323, the first operating portion 321 is preferably opposite to the first opening 311 as shown in fig. 6, and the first operating portion 321 is preferably a groove penetrating the first slider 32, the first breaker handle extends into the groove as the first operating portion 321 through the first opening 311, and the groove as the first operating portion 321 makes the first breaker handle be closed or opened when the first slider 32 slides. Of course, the first operating portion 321 may be a groove that is not through, the groove is disposed on one side of the first slider 32 close to the first breaker 21, and the first breaker handle is clamped into the groove, so that the first slider 32 can operate the first breaker handle. It should be noted that the relative positions of the first supporting panel 31, the first sliding block 32 and the push plate 33 are flexible, the push plate 33 can be located between the first supporting panel 31 and the first sliding block 32, the push plate 33 can also be located on the first supporting panel 31 in parallel with the first sliding block 32, of course, the push plate 33 and the first sliding block 32 can also be located on two sides of the first supporting panel 31 respectively, but this structure will increase the difficulty of installing the first supporting panel 31 on the first circuit breaker 21.

The first supporting panel 31 is rectangular as a whole, a first mounting portion 313 is formed by bending the edge of the first supporting panel 31 towards the first circuit breaker 21, and the first mounting portion 313 is used for mounting the first supporting panel 31 on the first circuit breaker 21; a first opening 311 for the first breaker handle to pass through is arranged in the middle of the first supporting panel 31, a first sliding groove 312 is arranged in parallel on one side of the first opening 311, and the first sliding groove 312 is used for sliding fit with the first sliding block 32; the first support panel 31 is provided with a first bracket 34 for assisting in fixing the flexible shaft 5, the first bracket 34 is perpendicularly fixed on one side of the first support panel 31 and is opposite to the push plate 33, the first bracket 34 is provided with an avoidance hole 342 through which the push plate 33 can pass and a first assembly groove 341 through which the first driving end 51 of the flexible shaft 5 can pass, preferably, the first assembly groove 341 is an arc-shaped groove arranged at the edge of the first bracket 34, and the first assembly groove 341 and the first connecting portion 331 keep the central axis coincident, so that the first driving end 51 of the flexible shaft 5 can move linearly after passing through the first assembly groove 341.

The first slider 32 has two sides with different widths, an edge of a wider side of the first slider 32 can abut against the first bracket 34 on the first support panel 31, a groove is arranged in the middle of the first slider 32 and serves as a first operation portion 321, preferably, edges of upper and lower sides of the groove are bent towards the first support panel 31 to enhance connection stability with the first breaker handle, a fixing shaft serving as the first sliding portion 322 is arranged on the narrower side of the first slider 32, the number of the guide portions of the first sliding portion 322 is two in the drawing, the fixing shaft serving as the guide portion 323 is arranged on the wider side of the first slider 32, the number of the guide portions 323 is also two, and preferably, the distance between the two guide portions 323 is greater than the distance between the two first sliding portions 322.

The push plate 33 is integrally strip-shaped, one end of the push plate 33 is bent to form a first connecting part 331, and the first connecting part 331 is used for being fixedly connected with the first driving end 51; the middle part of the push plate 33 is provided with a strip-shaped guide groove 332 for slidably matching with the guide part 323 of the first slide block 32, and the other end of the push plate 33 can pass through the avoiding hole 342 on the first bracket 34 to avoid the interference of the first bracket 34 on the movement of the push plate 33. When the first driving end 51 of the flexible shaft 5 drives the push plate 33 to slide, the two side ends of the strip-shaped guide groove 332 are respectively matched with the guide portions 323 of the first slide block 32 to drive the first slide block 32 to slide, so that the push plate 33 can move relative to the first slide block 32 to compensate the difference between the movement strokes of the first breaker handle and the second breaker handle. Of course, the strip-shaped guide groove 332 may be provided on the first slider 32, and the guide portion 323 may be provided on the first slider 32.

The second conversion mechanism 4 includes a second sliding mechanism, the second sliding mechanism includes a second support panel 41 and a second slider 42, the second support panel 41 is disposed on the front surface of the second circuit breaker 22, a second sliding structure is disposed between the second support panel 41 and the second slider 42 so that the second slider 42 can slide on the second support panel 41, a second opening parallel to the second sliding structure is disposed on the second support panel 41, and the second opening is used for the second circuit breaker handle to pass through and swing in the second opening; the second slider 42 is provided with a second connecting portion 423 and a second operating portion 421, and when the second slider 42 and the second support panel 41 slide relatively, the second operating portion 421 is used for operating the opening or closing of the second breaker handle.

As an embodiment, the second sliding structure is that a second sliding slot 411 is disposed on the second supporting panel 41, a second operating portion 421 opposite to the second opening is disposed in the middle of the second slider 42, second sliding portions 422 are disposed on both sides of the second operating portion 421, and the second sliding portions 422 are in sliding fit with the second sliding slot 411 disposed on the second supporting panel 41. Of course, as another embodiment, the second sliding structure may be that the second sliding portion 422 is provided on the second supporting panel 41, and the second sliding slot 411 is provided on the second sliding block 42.

As shown in fig. 7, the second switching mechanism 4 includes a second slider 42 on the second support panel 41, a fixed shaft facing the second support panel 41 is installed on both sides of the second slider 42 as a second sliding portion 422, a second operating portion 421 provided on the second slider 42 is preferably opposite to a second opening (not shown) as shown in fig. 7, and the second operating portion 421 preferably penetrates a groove provided on the second slider 42 through which the second breaker handle protrudes into the groove, the groove as the second operating portion 421 enables the second breaker handle to be driven to open or close the breaker when the second slider 42 slides. Of course, the second operation portion 421 may be a recess that is not through-arranged, the recess is arranged on one side of the second slider 42 close to the second breaker 22, and the second breaker handle is clamped into the recess and is operated by the second slider 42.

Specifically, the second supporting panel 41 is rectangular as a whole, a second mounting portion 412 is formed by bending the edge of the second supporting panel 41 toward the second circuit breaker 22, and the second mounting portion 412 is used for mounting the second supporting panel 41 on the second circuit breaker 22; a second opening for the second breaker handle to pass through is arranged in the middle of the second supporting panel 41, second sliding grooves 411 are respectively arranged on two sides of the second opening in parallel, and the second sliding grooves 411 are used for being in sliding fit with the second sliding blocks 42; the second support panel 41 is provided with a second bracket 43 for assisting in fixing the flexible shaft 5, the second bracket 43 is vertically fixed on one side of the second support panel 41, the second bracket 43 is provided with a second assembling groove 431 for the second driving end 52 of the flexible shaft 5 to pass through, preferably, the second assembling groove 431 is an arc-shaped groove arranged at the edge of the second bracket 43, and the second assembling groove 431 and the first connecting part 331 keep the central axis coincident, so that the second driving end 52 of the flexible shaft 5 can do linear motion after passing through the second assembling groove 431.

The second slider 42 is rectangular as a whole, a groove is formed in the middle of the second slider 42 to serve as a second operation portion 421, preferably, edges of the upper side and the lower side of the groove are bent towards the second support panel 41 to enhance the stability of connection with the second breaker handle, fixing shafts serving as second sliding portions 422 are arranged on two sides of the second slider 42, the number of the second sliding portions 422 on each side is two, the two sliding portions are symmetrically arranged on two sides of the second operation portion 421, the edge of the upper side or the lower side of the second slider 42 is bent towards the direction far away from the second support panel 41, the bent portion serves as a second connecting portion 423, and the edge of the second slider 42 opposite to the second connecting portion 423 is used for being matched with the second support 43 to abut against the second support 43 to stop movement of the second slider 42. As shown in fig. 7, the upper side of the second operation portion 421 is bent to form a second connection portion 423, and the second connection portion 423 is disposed opposite to the second bracket 43; the edge of the lower side of the second operating portion 421 is used to match with the second bracket 43, the edge of the side close to the second bracket 43 is used to match with the second bracket 43, an extending portion 424 is formed by extending from the side far from the second bracket 43, the extending portion 424 is preferably bent opposite to the second connecting portion 423, and the second bracket 43 is provided with a notch for avoiding the extending portion 424.

As shown in fig. 8-9, the end of the flexible shaft 5 connected to the transmission mechanism is used as a connecting end 53, the end of the flexible shaft 5 connected to the conversion mechanism is used as a driving end, and the number of the driving ends corresponds to the number of the conversion mechanisms in the cabinet 1. As described above, the conversion mechanisms in the cabinet 1 include the first conversion mechanism 3 and the second conversion mechanism 4, the respective driving ends include the first driving end 51 connected to the first conversion mechanism 3, and the second driving end 52 connected to the second conversion mechanism 4, the first driving end 51 and the second driving end 52 are identical in structure, but the flexible shaft 5 provided with the first driving end 51 and the flexible shaft 5 provided with the second driving end 52 may differ in length in consideration of the space occupied in the cabinet 1. The number of the flexible shafts 5 corresponds to that of the conversion mechanisms, the connecting end 53 of each flexible shaft 5 is connected to the transmission mechanism together, and the driving end of each flexible shaft 5 is connected to one conversion mechanism correspondingly.

Specifically, the flexible shaft 5 includes a protective sheath 54 and a shaft core, two ends of the protective sheath 54 are used as fixed ends and are respectively and fixedly connected with the transmission mechanism and the conversion mechanism, the protective sheath 54 is wrapped outside the shaft core, the shaft core is in sliding fit with the protective sheath 54, two ends of the shaft core are used as movable ends and respectively penetrate out of the two fixed ends of the protective sheath 54, one movable end is connected with the transmission mechanism and is used as a connecting end 53, the other movable end is used as a driving end, when the driving end extends out of the protective sheath 54, the connecting end retracts into the protective sheath 54, and when the driving end retracts into the protective sheath 54, the connecting end extends out of the protection.

As shown in fig. 10 to 11, the transmission mechanism includes a third bracket 62 and a transmission member 61 rotatably supported on the third bracket 62, the third bracket 62 is supported and fixed in the cabinet 1, the transmission member 61 is rotatably mounted on the third bracket 62 through a rotating shaft, one end of the transmission member 61 is fixedly connected to the handle mechanism 7, the other end of the transmission member 61 is rotatably connected to the connecting end 53 of the flexible shaft 5, the handle mechanism 7 is operated to rotate the transmission member 61 around the rotating shaft under the driving of the handle mechanism 7, and the flexible shaft 5 connected to the transmission member 61 moves in the cabinet 1 under the rotation of the transmission member 61 and drives the switching mechanism to close or open the circuit breaker handle.

As shown in fig. 12, the transmission member 61 is generally triangular, a first corner of the transmission member 61 is fixedly connected with the handle mechanism 7, a second corner of the transmission member 61 is rotatably connected with the third bracket 62 through a rotating shaft, a third corner of the transmission member 61 is rotatably connected with the connecting end 53 of the flexible shaft 5, and specifically, the third corner of the transmission member 61 is hinged with the connecting end 53 through a connecting shaft.

The third bracket 62 may cooperate with the first and second brackets 34, 43 to assist in securing the flexible shaft 5. When the protective sheath 54 is not provided on the flexible shaft 5, the first driving end 51 and the second driving end 52 are respectively engaged with the first fitting groove 341 and the second fitting groove 431 to avoid redundant swinging in the cabinet 1, and the third bracket 62 may be provided with a ring structure similar to the first fitting groove 341 or the second fitting groove 431 so that the flexible shaft 5 can slide therein. When the flexible shaft 5 is provided with the protective sheaths 54 as shown in fig. 8 to 9, the auxiliary fixing of the three brackets is specifically that the first bracket 34 and the second bracket 43 are used for auxiliary fixing of two fixed ends of the protective sheaths 54 close to the conversion mechanism, the two fixed ends are respectively fixed to the first assembly groove 341 and the second assembly groove 431 through nuts, the two fixed ends respectively penetrate through the shaft cores as the first driving end 51 and the second driving end 52, the third bracket 62 is used for fixing the other fixed end of the two protective sheaths 54, the protective sheaths 54 are fixed to the third bracket 62 through clips and screws, and the shaft core as the connecting end 53 of the flexible shaft 5 is rotatably connected with the transmission piece 61, and the connecting end 53 in this embodiment is completely the same.

As shown in fig. 10-11, the handle mechanism 7 includes a flange 71 and a handle 72 rotatably connected to the flange 71, the flange 71 is a cast bracket or support, the flange 71 is disposed on an outer side wall of the cabinet 1, a hole for mounting a screw is disposed on the flange 71, the flange 71 is mounted on the cabinet 1, preferably on a door edge of the cabinet 1 by a screw, a sealing gasket is disposed between the flange 71 and the door edge of the cabinet 1, a link 73 is disposed inside the flange 71, the link 73 extends into the cabinet 1 through a side wall of the cabinet 1, one end of the link 73 is rotatably connected to the handle 72 outside the cabinet 1 as a connecting outer end 731, the other end of the link 73 is fixedly connected to a transmission mechanism inside the cabinet 1 as a connecting inner end 732, when the handle 72 is moved in a forward direction, the connecting inner end 732 is moved away from the flange 71, when the handle 72 is rotated in a reverse direction, the connection outer end 731 moves in a direction to approach the flange 71. The handle mechanism 7 can be installed on the left side wall of the cabinet body 1, and can also be installed on the right side wall of the handle mechanism 7.

The working principle is explained in conjunction with fig. 4-5: when the operating handle 72 is operated to move in a forward direction, which is shown as rotating the handle 72 counterclockwise in the figure, the handle 72 makes the connecting inner end 732 of the connecting rod 73 move away from the flange 71, the connecting rod 73 acts on the first corner of the transmission member 61 to make the transmission member 61 rotate counterclockwise around the rotating shaft connected to the second corner of the transmission member 61, at this time, the third corner of the transmission member 61 drives the connecting end 53 of the flexible shaft 5 to move downward, and through the transmission of the flexible shaft 5, the first driving end 51 and the second driving end 52 of the flexible shaft 5 drive the first slider 32 and the second slider 42 to move upward respectively, but since the moving stroke of the first breaker handle is smaller than that of the second breaker handle, the moving stroke of the first slider 32 is smaller than that of the second slider 42, after the first slider 32 stops moving or before the first slider 32 stops moving, the push plate 33 is driven by the first driving end 51 to slide relative to the first slider 32 until the second driving end 52 stops driving the second slider 42 to slide, the relative sliding of the push plate 33 keeps the first and second driving ends 51 and 52 equal in stroke, thereby compensating for the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle, and thus causing the upward movement of the first and second sliders 32 and 42 to start simultaneously and not end simultaneously, or to start simultaneously and end simultaneously. Similarly, when the operating handle 72 is operated to move in the opposite direction, which is shown as clockwise rotation of the handle 72 in the figure, the handle 72 makes the connecting inner end 732 of the connecting rod 73 move in the direction close to the flange 71, the connecting rod 73 acts on the first corner of the transmission member 61 to make the transmission member 61 rotate clockwise around the rotating shaft connected to the second corner of the transmission member 61, at this time, the third corner of the transmission member 61 drives the connecting end 53 of the flexible shaft 5 to move upwards, and through the transmission of the flexible shaft 5, the first driving end 51 and the second driving end 52 of the flexible shaft 5 respectively drive the first slider 32 and the second slider 42 to move downwards, after the first slider 32 stops moving or before the first slider 32 stops moving, the push plate 33 is driven by the first driving end 51 to slide relative to the first slider 32 until the second driving end 52 stops driving the second slider 42 to slide, and the relative sliding of the push plate 33 makes the first driving end 51 and the second, therefore, the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle is compensated, correspondingly, the downward movement of the first slide block 32 and the second slide block 42 is not started simultaneously but ended simultaneously, and the action processes of the first slide block 32 and the second slide block 42 have time difference.

As shown in fig. 10 to 14, the transmission mechanism and the handle mechanism 7 are fixedly connected through a fastening bolt 8 and a tail 82 nut which are matched with each other, the fastening bolt 8 comprises a head portion 81 and a tail portion 82 for limiting the axial movement of the fastening bolt 8, the tail portion 82 is provided with an external thread for installing the tail 82 nut, a fastening portion 83 is arranged in the middle of the fastening bolt 8, a connecting hole 611 matched with the fastening bolt 8 is arranged on each of the transmission piece 61 of the transmission mechanism and the connecting rod 73 of the handle mechanism 7, the connecting hole 611 is provided with a limiting portion 612 matched with the fastening portion 83, and the limiting portion 612 is matched with the fastening portion 83 for limiting the radial rotation of the fastening bolt 8 when the tail 82 nut is installed.

The transmission piece 61 of the transmission mechanism and the connecting rod 73 of the handle mechanism 7 are fixed by the specially set fastening bolt 8, the fastening part 83 is arranged on the fastening bolt 8, and the fastening part 83 is matched and clamped with the limiting part 612 of the connecting hole 611 to limit the radial rotation of the fastening bolt 8, so that the fastening bolt 8 can be fixed without using tools such as a spanner when the tail part 82 nut is installed in a narrow space, and the installation process is simplified.

The fastening bolt 8 comprises a head 81 and a rod body which are connected into a whole, the diameter of the head 81 is larger than that of the rod body, one end of the rod body is connected with the head 81, the other end of the rod body is provided with an external thread used for installing a nut of the tail 82 as the tail 82, and the fastening part 83 is located on the part, close to the head 81, of the rod body.

The fastening portion 83 and the limiting portion 612 are preferably in concave-convex fit, the fastening portion 83 is a protrusion protruding from the sidewall of the fastening bolt 8, the limiting portion 612 of the connection hole 611 is a groove fitting with the fastening portion 83, of course, the fastening portion 83 may also be a groove structure disposed in the middle of the fastening bolt 8, and the limiting portion 612 is a protrusion protruding from the edge of the connection hole 611.

Specifically, as shown in fig. 14, the fastening bolt 8 includes a head portion 81 and a rod body connected as a single body, the rod body is integrally in a step shape with a thick end and a thin end, the thin portion on the rod body is provided with an external thread as a tail portion 82, the thick portion on the rod body is provided with a transition section 84 for being connected with the head portion 81, and a fastening portion 83 is provided on a side wall of the transition section 84, as shown in fig. 14, the fastening portion 83 is a protruding structure with two protrusions, the two fastening portions 83 are connected with the head portion 81 and symmetrically provided on the transition section 84, preferably, the axial length of the fastening portion 83 is smaller than the axial length of the transition section 84, and after the tail portion 82 nut is installed, a space between the fastening portion 83 and the nut is filled. Correspondingly, the edges of the connecting hole 611 are symmetrically provided with grooves serving as the limiting parts 612, and the fastening part 83 is a rectangular protrusion, and the corresponding limiting part 612 is a rectangular groove, specifically, as shown in fig. 12, the whole transmission member 61 of the transmission mechanism is triangular, the first corner of the transmission member is used for being fixedly connected with the connecting rod 73 of the handle mechanism 7, the connecting hole 611 arranged at the first corner is circular, and two opposite edges of the connecting hole 611 are provided with rectangular grooves serving as the limiting parts 612 matched with the fastening part 83; as shown in fig. 13, a connection hole 611 having the same shape as that of the first corner of the transmission member 61 is also provided at the connection inner end 732 of the link 73. Note that the number of the fastening portions 83 is not limited to two, and the arrangement of the fastening portions 83 on the fastening bolt 8 is not limited to a symmetrical arrangement, nor is the shape of the fastening portions 83 limited to a rectangular protrusion.

It should be noted that, since the fastening bolt 8 and the nut of the tail portion 82 are used for fixedly connecting the transmission mechanism and the handle mechanism 7, when the movement strokes of the plurality of circuit breaker handles in the cabinet 1 are equal, the fastening bolt 8 and the nut of the tail portion 82 may also be applied. Therefore, when the same circuit breaker is disposed in the cabinet 1, the switching mechanisms disposed on the circuit breaker are all the second switching mechanisms 4, and accordingly, the driving end connected to the second switching mechanism 4 is the second driving end 52. At this time, the second conversion mechanism 4 includes a second support panel 41 and a second slider 42, the second support panel 41 is disposed on the front surface of the circuit breaker, a second sliding structure is disposed between the second support panel 41 and the second slider 42 so that the second slider 42 can slide on the second support panel 41, and a second opening parallel to the second sliding structure is disposed on the second support panel 41, through which the circuit breaker handle passes and can swing in the second opening; the second slider 42 is provided with a second connecting portion 423 and a second operating portion 421, and when the second slider 42 and the second support panel 41 slide relatively, the second operating portion 421 is used for operating the opening or closing of the breaker handle.

Specifically, the second support panel 41 is rectangular as a whole, a second mounting portion 412 is formed by bending the edge of the second support panel 41 towards the circuit breaker, and the second mounting portion 412 is used for mounting the second support panel 41 on the circuit breaker; a second opening for the breaker handle to pass through is formed in the middle of the second support panel 41, and second sliding grooves 411 are respectively formed in parallel on two sides of the second opening, and the second sliding grooves 411 are used for being in sliding fit with the second sliding blocks 42; the second support panel 41 is provided with a second bracket 43 for assisting in fixing the flexible shaft 5, the second bracket 43 is vertically fixed on one side of the second support panel 41, the second bracket 43 is provided with a second assembling groove 431 for the second driving end 52 of the flexible shaft 5 to pass through, preferably, the second assembling groove 431 is an arc-shaped groove arranged on the edge of the second bracket 43, and the second assembling groove 431 and the second connecting part 423 keep the central axes coincident, so that the second driving end 52 of the flexible shaft 5 can move linearly after passing through the second assembling groove 431.

The second slider 42 is rectangular as a whole, a groove is formed in the middle of the second slider 42 to serve as a second operation portion 421, preferably, edges of the upper side and the lower side of the groove are bent towards the second support panel 41 to enhance the stability of connection with the handle of the circuit breaker, fixing shafts serving as second sliding portions 422 are arranged on two sides of the second slider 42, the number of the second sliding portions 422 on each side is two, the second sliding portions 422 are symmetrically arranged on two sides of the second operation portion 421, the upper side or the lower side edge of the second slider 42 is bent towards the direction away from the second support panel 41, the bent portions serve as second connecting portions 423, and the edge of the second slider 42 opposite to the second connecting portions 423 is used for being matched with the second support 43 to abut against the second support 43 to stop movement of the second slider. As shown in fig. 7, the upper side of the second operation portion 421 is bent to form a second connection portion 423, and the second connection portion 423 is disposed opposite to the second bracket 43; the edge of the lower side of the second operating portion 421 is used to match with the second bracket 43, the edge of the side close to the second bracket 43 is used to match with the second bracket 43, an extending portion 424 is formed by extending from the side far from the second bracket 43, the extending portion 424 is preferably bent opposite to the second connecting portion 423, and the second bracket 43 is provided with a notch for avoiding the extending portion 424.

Example two (not shown in this example): the cabinet body 1 is internally provided with a first circuit breaker 21 and a second circuit breaker 22, and the swing stroke of the first circuit breaker handle 21 is smaller than the swing stroke of the second circuit breaker handle 22, the switching mechanism comprises a first switching mechanism 3 and a second switching mechanism 4 which are respectively coupled with the first circuit breaker handle and the second circuit breaker handle, the flexible shaft 5 comprises a first driving end 51 and a second driving end 52 which are respectively connected with the first switching mechanism 3 and the second switching mechanism 4, the first switching mechanism 3 is provided with a stroke compensation structure for coordinating the swing stroke of the circuit breaker handle, the first switching mechanism 3 is different from the first embodiment in that the stroke compensation structure is directly arranged on the first sliding mechanism, and a third sliding mechanism is not arranged.

First conversion mechanism 3 is including the first slide mechanism who is equipped with stroke compensation mechanism, first slide mechanism is equipped with stroke compensation groove including the first slider 32 that is equipped with first operation portion 321 on first operation portion 321, when first drive end 51, second drive end 52 drive first slider 32, second slider 42 simultaneously, first operation portion 321 is when the action of operation first circuit breaker handle, and stroke compensation groove is used for compensating the swing stroke difference of first circuit breaker handle and second circuit breaker handle.

Specifically, the first conversion mechanism 3 includes a first support panel 31 and a first slider 32, the first support panel 31 is disposed on the front surface of the first circuit breaker 21, a first sliding structure is disposed between the first support panel 31 and the first slider 32, a first opening 311 parallel to the first sliding structure is disposed on the first support panel 31, and the first opening 311 is used for a first circuit breaker handle to pass through and can swing in the first opening 311; the first slider 32 is provided with a first connecting part 331, and the first connecting part 331 is fixedly connected with the first driving end 51; first slider 32 is equipped with first operation portion 321, and first operation portion 321 has been reserved in first circuit breaker handle wobbling direction to swing space as stroke compensation groove, and stroke compensation groove symmetry lies in the both sides of first operation portion 321, and preferred first operation portion 321 is groove structure, so the groove structure of first operation portion 321 and the first recess of stroke compensation groove intercommunication as an organic whole, the recess is far greater than the swing stroke of first circuit breaker handle, the position of the first circuit breaker handle of specific operation is regarded as to the both sides edge of recess, and the stroke mid point of preferred first circuit breaker handle and second circuit breaker handle need be located same straight line.

The second conversion mechanism 4 includes a second support panel 41 and a second slider 42, the second support panel 41 is disposed on the front surface of the second circuit breaker 22, a second sliding structure is disposed between the second support panel 41 and the second slider 42 so that the second slider 42 can slide on the second support panel 41, and a second opening parallel to the second sliding structure is disposed on the second support panel 41, through which a second circuit breaker handle can pass and can swing in the second opening; the second slider 42 is provided with a second connecting portion 423 and a second operating portion 421, and when the second slider 42 slides relative to the second support panel 41, the second operating portion 421 is used to operate a second groove of the second breaker handle, which is opened or closed, and preferably, the first groove and the second groove have the same length.

The structure of the flexible shaft 5 and the handle mechanism 7 is the same as that of the first embodiment, and the connection mode of the flexible shaft 5, the conversion mechanism and the transmission mechanism is the same.

The flexible shaft 5 is moved by operating the handle mechanism 7, the first driving end 51 and the second driving end 52 act simultaneously to enable the first slider 32 and the second slider 42 to slide simultaneously, and the stroke length of the first breaker handle is smaller than that of the second breaker handle, so that the first breaker 21 starts late and ends early relative to the second breaker 22, and at this time, the action processes of the first breaker handle and the second breaker handle are as follows: the second breaker handle starts to act, and at the moment, the first breaker handle moves in a space serving as a stroke compensation groove (one side) so that the time for starting to act of the first breaker handle is later than that of the second breaker handle; when the movement of the stroke compensation groove of the first breaker handle on one side is finished, the first operating part 321 drives the first breaker handle to act until the operation on the first breaker 21 is finished; when the first breaker handle stops operating the first breaker 21, the first breaker handle enters the stroke compensation groove (the other side) to move until the movement of the first breaker handle in the stroke compensation groove is finished.

Example three: the cabinet body 1 is internally provided with a first circuit breaker 21 and a second circuit breaker 22, and the swing stroke of the first circuit breaker handle is smaller than that of the second circuit breaker handle. The switching mechanism includes first conversion mechanism 3 and the second conversion mechanism 4 with first circuit breaker handle and the coupling of second circuit breaker handle respectively, flexible axle 5 includes the drive end of being connected with the switching mechanism and the link 53 of being connected with drive mechanism, and the flexible axle 5 of connection between drive mechanism and first conversion mechanism 3 is equipped with stroke compensation structure, and operating handle mechanism 7 drives flexible axle 5 motion, and stroke compensation structure is used for compensating the stroke length of first circuit breaker handle and the stroke length difference of second circuit breaker handle.

According to a first scheme of the stroke compensation structure (not shown), the flexible shaft 5 comprises a first driving end 51 and a second driving end 52, the first driving end 51 is in sliding fit with the first conversion mechanism 3 through the stroke compensation structure, the second driving end is connected with the second conversion mechanism, the operating handle mechanism 7 drives the flexible shaft 5 to move to operate the first circuit breaker 21 and the second circuit breaker 22, and the stroke compensation structure is used for compensating a stroke length difference between a first circuit breaker handle and a second circuit breaker handle.

Different from the first embodiment, the first conversion mechanism 3 of this embodiment only includes the first sliding mechanism that is used for operating the first circuit breaker handle, preferably is equipped with the compensation groove at first drive end 51, the length of compensation groove is first circuit breaker handle and second circuit breaker handle swing stroke difference, is equipped with the spacing portion of slip on first conversion mechanism 3, the spacing portion of slip and compensation groove sliding fit accomplish the stroke difference compensation between first circuit breaker handle and the second circuit breaker handle through relative slip.

The first conversion mechanism 3 comprises a first support panel 31 and a first slider 32, the first support panel 31 is arranged on the front surface of the first circuit breaker 21, a first sliding structure is arranged between the first support panel 31 and the first slider 32, a first opening 311 parallel to the first sliding structure is arranged on the first support panel 31, and the first opening 311 is used for a first circuit breaker handle to pass through and can swing in the first opening 311; the first slider 32 is provided with a first operating part 321, when the first slider 32 and the first supporting panel 31 slide relatively, the first operating part 321 is used for driving a first breaker handle to act to realize the opening or closing of the breaker, the first slider 32 is provided with a first connecting part 331, and the first connecting part 331 is used as a sliding limiting part and is in sliding fit with the compensation groove of the first driving end 51; as in the first embodiment, the second coupling portion 423 of the second conversion mechanism 4 is fixedly coupled to the second driving end 52.

The first driving end 51 and the second driving end 52 are simultaneously actuated and simultaneously stopped by moving the flexible shaft 5 by operating the handle mechanism 7, but the first slider 32 and the second slider 42 cannot simultaneously start sliding due to the stroke compensation groove provided on the first driving end 51, and the movement process is similar to that of the first embodiment.

The movement process specifically comprises the following steps: when the operating handle mechanism 7 enables the flexible shaft 5 to drive the first conversion mechanism 3 and the second conversion mechanism 4 to move, the second slider 42 starts to slide to operate the second breaker handle, at this time, the first connecting portion 331 serving as a sliding limiting portion on the first slider 32 slides in the compensation groove of the first driving end 51, the first slider 32 and the first support panel 31 keep relatively static until the first connecting portion 331 moves from one side of the compensation groove to the other side, and the other side of the compensation groove drives the first slider 32 to start to slide relative to the first support panel 31 until the first slider 42 and the second slider 42 stop moving simultaneously; the first driving end 51 moves in the opposite direction, and the first sliding block 32 is relatively stationary, and after the first connecting portion 331 moves from the other side of the compensation slot to one side of the compensation slot, the first sliding block 32 starts to move under the driving of the first driving end 51 until the second sliding block 42 stops moving.

According to the second scheme of the stroke compensation structure, the flexible shaft 5 comprises a first connecting end and a second connecting end, the first connecting end is connected with the transmission mechanism in a sliding mode through the stroke compensation structure, the second connecting end is connected with the transmission mechanism in a rotating mode, the operating handle mechanism 7 drives the flexible shaft 5 to move to operate the first circuit breaker 21 and the second circuit breaker 22, and the stroke compensation structure is used for compensating the difference between the stroke length of the handle of the first circuit breaker and the stroke length of the handle of the second circuit breaker.

Referring to fig. 15, the first connection end is provided with a stroke compensation connector 55, the stroke compensation connector 55 is provided with a compensation groove 551, preferably, the compensation groove 551 is a strip-shaped groove, and the length of the compensation groove 551 is the stroke difference between the first breaker handle and the second breaker handle; the second connecting end is provided with a connecting piece 56, a connecting matching hole 561 is arranged on the connecting piece 56, the connecting matching hole 561 is a round hole, the connecting shaft penetrates through the compensation groove 551 and the connecting matching hole 561 to install the stroke compensation connecting piece 55 and the connecting piece 56 on the transmission mechanism, the connecting shaft is in sliding fit with the compensation groove 551, and when the handle mechanism 7 is operated, the connecting shaft slides in the compensation groove 551 to compensate the stroke length difference between the first breaker handle and the second breaker handle.

Different from the first scheme, the first driving end 51 and the second driving end 52 have the same structure, the connection mode of the first driving end 51 and the first conversion mechanism 3 is the same as the connection mode of the second driving end 52 and the second conversion mechanism 4, and the connection modes are both fixedly connected, and the rest structures are the same as the first scheme. The action process is as follows: the flexible shaft 5 is moved by operating the handle mechanism 7, and the actuation time of the first driving end 51 is later than that of the second driving end 52 due to the stroke compensation structure provided on the first connecting end. The connecting shaft drives the second connecting end to move through the connecting matching hole 561, the second driving end 52 linked with the second connecting end drives the second breaker handle to move, at this time, the connecting shaft slides in the compensation groove 551 first, the first connecting end is driven to move after the connecting shaft is contacted with one side edge of the compensation groove 551, and the first driving end 51 linked with the first connecting end drives the first breaker handle to move.

Example four (not shown in this example): the cabinet body 1 includes first circuit breaker 21 and second circuit breaker 22, and the swing stroke of first circuit breaker handle is less than second circuit breaker handle swing stroke, first circuit breaker 21, second circuit breaker 22 are connected with the drive end of flexible axle 5 through the shifter, and flexible axle 5 includes first link and second link, and first link, second link are connected with drive mechanism respectively with first drive end, the linkage of second drive end and first link, second link respectively drive mechanism is equipped with the stroke compensation structure that is used for compensating the circuit breaker handle stroke difference.

The transmission mechanism comprises a stroke compensation transmission member (not shown in the figure) and a transmission member 61, wherein a stroke compensation groove is formed in the stroke compensation transmission member, the first connection end is in sliding fit with the stroke compensation groove and used for compensating stroke difference between the circuit breaker handles, and the second connection end is rotatably connected with the transmission member 61.

The transmission mechanism comprises a third support 62, a transmission piece 61 and a stroke compensation transmission piece, wherein the transmission piece 61 and the stroke compensation transmission piece are simultaneously and rotatably supported on the third support 62, the third support 62 is fixedly supported in the cabinet body 1, the stroke compensation transmission piece and the transmission piece 61 are rotatably mounted on the third support 62 through the same rotating shaft, one end of each of the stroke compensation transmission piece and the transmission piece 61 is fixedly connected with the handle mechanism 7, the other end of each of the stroke compensation transmission piece is slidably connected with the first connecting end of the flexible shaft 5, the other end of the transmission piece 61 is rotatably connected with the second connecting end of the flexible shaft 5, the handle mechanism 7 is operated to enable the stroke compensation transmission piece and the transmission piece 61 to rotate around the rotating shaft under the driving of the handle mechanism 7, and the flexible shaft 5 respectively connected with the stroke compensation transmission piece and the transmission piece 61 moves.

The first conversion mechanism 3 is similar in structure to the second embodiment, but the stroke compensation groove is not provided on the first slider 32. The second conversion mechanism 4, the flexible shaft 5 and the handle mechanism 7 are the same as those of the first embodiment.

The operating handle mechanism 7 enables the transmission mechanism to drive the flexible shaft 5 to move, the stroke compensation transmission piece and the transmission piece 61 rotate simultaneously, but because the first connecting end is in sliding fit with the stroke compensation groove, when the driving member 61 drives the second driving end 52 to drive the second sliding block 42 to operate the handle of the second circuit breaker 22 through the second connecting end, the first connecting end slides in the stroke compensation groove to compensate the motion stroke difference of the first breaker handle and the second breaker 22 handle, the compensation process is that the first connecting end moves from one side of the stroke compensation groove to the other side, the first driving end 51 is driven to move after the limit of the collision between the edge of the stroke compensation groove and the first connecting end, therefore, the starting action time of the first driving end 51 driving the first sliding block 32 to operate the first breaker handle is later than that of the second breaker 22 handle, and preferably, the stroke compensation groove is in a circular arc shape. .

Of course, the stroke compensation transmission member and the transmission member 61 may be combined into a comprehensive transmission member, and the comprehensive transmission member is provided with a stroke compensation groove for sliding fit with the first connection end and a connection hole for rotating fit with the second connection end, the connection hole and the stroke compensation groove are located at different positions of the comprehensive transmission member, and the stroke compensation groove in this embodiment is preferably a stroke compensation groove having a radian.

The utility model provides a circuit breaker is low-voltage moulded case circuit breaker.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (18)

1. A mechanism for remotely operating a circuit breaker comprises a cabinet body (1), wherein at least two circuit breakers are installed in the cabinet body (1), and the swinging of a handle of each circuit breaker can be controlled by one remote operating mechanism to realize the closing or opening of the circuit breaker; remote operation mechanism is including handle mechanism (7), drive mechanism, flexible shaft (5) and the shifter that connects gradually, its characterized in that:

the circuit breaker in the cabinet body (1) includes first circuit breaker (21) and second circuit breaker (22) at least, the stroke length of first circuit breaker handle is less than the stroke length of second circuit breaker handle, is equipped with the stroke compensation structure that is used for compensating the stroke length of first circuit breaker handle and the stroke length difference of second circuit breaker handle on remote operation mechanism.

2. A mechanism for remotely operating a circuit breaker as claimed in claim 1, wherein: the switching mechanism includes first conversion mechanism (3) and second conversion mechanism (4) with first circuit breaker handle and the coupling of second circuit breaker handle respectively, and flexible axle (5) are including first drive end (51) that are connected with first conversion mechanism (3), second conversion mechanism (4) respectively, and the movement stroke that operating handle mechanism (7) drove first drive end (51) and second drive end (52) of flexible axle (5) equals be equipped with the stroke compensation structure that is used for compensating the stroke length of first circuit breaker handle and the stroke length difference of second circuit breaker handle on first conversion mechanism (3).

3. A mechanism for remotely operating a circuit breaker as claimed in claim 2, wherein: the first conversion mechanism (3) comprises a first sliding mechanism and a stroke compensation structure matched with the first sliding mechanism, the stroke compensation structure comprises a third sliding mechanism, a first driving end (51) of the flexible shaft (5) is connected with the third sliding mechanism, and the third sliding mechanism drives a first breaker handle through the first sliding mechanism; the second conversion mechanism (4) comprises a second sliding mechanism, and a second driving end (52) of the flexible shaft (5) drives a second breaker handle through the second sliding mechanism;

after the first sliding mechanism stops moving or before the first sliding mechanism starts moving, the third sliding mechanism can be driven by the first driving end (51) to move relative to the first sliding mechanism, so that the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle is compensated.

4. A mechanism for remotely operating a circuit breaker as claimed in claim 3, wherein: the first sliding mechanism of the first conversion mechanism (3) comprises a first supporting panel (31) and a first sliding block (32) which can slide on the first supporting panel (31), and the third sliding mechanism comprises a push plate (33) which can slide relative to the first sliding block (32);

the first sliding block (32) can slide on the first supporting panel (31) and is used for operating the first breaker handle, the push plate (33) is provided with a first connecting portion (331) fixedly connected with the first driving end (51), and after the first sliding block (32) stops sliding relative to the first supporting panel (31) or before the first sliding block (32) slides relative to the first supporting panel (31), the push plate (33) can move relative to the first sliding block (32) under the action of the first driving end (51) so as to compensate the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle and ensure that the movement strokes of the first driving end (51) and the second driving end (52) are equal.

5. A mechanism for remotely operating a circuit breaker as claimed in claim 3, wherein: the second sliding mechanism of the second conversion mechanism (4) comprises a second supporting panel (41) and a second sliding block (42) capable of sliding on the second supporting panel (41), and a second driving end (52) of the flexible shaft (5) is fixedly connected with the second sliding block (42).

6. A mechanism for remotely operating a circuit breaker as claimed in claim 4 wherein: the first supporting panel (31) is arranged on the front face of the first circuit breaker (21), a first sliding structure is arranged between the first supporting panel (31) and the first sliding block (32), a first opening (311) parallel to the first sliding structure is arranged on the first supporting panel (31), and a handle of the first circuit breaker can penetrate through the first opening (311) and can swing in the first opening (311); the first sliding block (32) is provided with a first operating part (321), and when the first sliding block (32) and the first supporting panel (31) slide relatively, the first operating part (321) is used for driving a first breaker handle to act to realize the opening or closing of the breaker.

7. A mechanism for remotely operating a circuit breaker as claimed in claim 6, wherein: the first sliding structure comprises a first sliding chute (312) arranged on the first supporting panel (31) and a fixed shaft which is arranged on the first sliding block (32) and is used as a first sliding part (322), and the fixed shaft extends into the first sliding chute (312) to be in sliding fit; a strip-shaped guide groove (332) is formed in the push plate (33), a guide portion (323) is arranged on the first sliding block (32), and the guide portion (323) extends into the strip-shaped guide groove (332) to be in sliding fit.

8. The mechanism of claim 7, wherein: the length of the strip-shaped guide groove (332) is the difference of the moving stroke lengths of the first breaker handle and the second breaker handle.

9. A mechanism for remotely operating a circuit breaker as claimed in claim 6, wherein: the first supporting panel (31) is integrally rectangular, a first mounting part (313) is formed by bending the edge of the first supporting panel (31) towards the first circuit breaker (21), and the first mounting part (313) is used for mounting the first supporting panel (31) on the first circuit breaker (21); a first opening (311) for a first breaker handle to pass through is formed in the middle of the first supporting panel (31), a first sliding groove (312) is formed in one side of the first opening (311) in parallel, and the first sliding groove (312) is used for being in sliding fit with the first sliding block (32); the first support panel (31) is provided with a first support (34) used for assisting in fixing the flexible shaft (5), the first support (34) is vertically fixed on one side of the first support panel (31) and opposite to the push plate (33), the first support (34) is provided with an avoiding hole (342) for the push plate (33) to pass through and a first assembling groove (341) for the first driving end (51) of the flexible shaft (5) to pass through, the first assembling groove (341) is an arc-shaped groove arranged on the edge of the first support (34), the first assembling groove (341) and the first connecting part (331) keep the central axis coincident, and the first driving end (51) of the flexible shaft (5) can move linearly after passing through the first assembling groove (341).

10. A mechanism for remotely operating a circuit breaker as claimed in claim 9, wherein: the first sliding block (32) is provided with two sides with different widths, one side edge of the wider side of the first sliding block (32) can abut against a first support (34) on the first supporting panel (31), a groove is arranged in the middle of the first sliding block (32) and serves as a first operation portion (321), edges of the upper side and the lower side of the groove bend towards the first supporting panel (31), a fixing shaft serving as a first sliding portion (322) is arranged on the narrower side of the first sliding block (32), and a fixing shaft serving as a guide portion (323) is arranged on the wider side of the first sliding block (32).

11. A mechanism for remotely operating a circuit breaker as claimed in claim 6, wherein: the push plate (33) is integrally strip-shaped, one end of the push plate (33) is bent to form a first connecting portion (331), the first connecting portion (331) is used for being fixedly connected with the first driving end (51), and a strip-shaped guide groove (332) is formed in the middle of the push plate (33) and used for being in sliding fit with the first sliding block (32).

12. A mechanism for remotely operating a circuit breaker as claimed in claim 5, wherein: the second supporting panel (41) is arranged on the front surface of the second circuit breaker (22), a second sliding structure is arranged between the second supporting panel (41) and the second sliding block (42) to enable the second sliding block (42) to slide on the second supporting panel (41), a second opening parallel to the second sliding structure is arranged on the second supporting panel (41), and a second circuit breaker handle passes through the second opening and can swing in the second opening; the second slider (42) is provided with a second connecting portion (423) and a second operating portion (421), and when the second slider (42) and the second support panel (41) slide relatively, the second operating portion (421) is used for operating the opening or closing of the second breaker handle.

13. A mechanism for remotely operating a circuit breaker as claimed in claim 1, wherein: the transmission mechanism comprises a third support (62) and a transmission piece (61) which is rotatably supported on the third support (62), the third support (62) is supported and fixed in the cabinet body (1), the transmission piece (61) is rotatably installed on the third support (62) through a rotating shaft, one end of the transmission piece (61) is fixedly connected with the handle mechanism (7), the other end of the transmission piece (61) is rotatably connected with the connecting end (53) of the flexible shaft (5), the handle mechanism (7) is operated to enable the transmission piece (61) to rotate around the rotating shaft under the driving of the handle mechanism (7), and the flexible shaft (5) connected with the transmission piece (61) moves in the cabinet body (1) under the rotation of the transmission piece (61) and drives the switching mechanism to enable the breaker handle to be closed or disconnected.

14. A mechanism for remotely operating a circuit breaker as recited in claim 13, wherein: the whole transmission piece (61) is triangular, a first angle of the transmission piece (61) is fixedly connected with the handle mechanism (7), a second angle of the transmission piece (61) is rotatably connected with the third support (62) through a rotating shaft, and a third angle of the transmission piece (61) is rotatably connected with the connecting end (53) of the flexible shaft (5).

15. A mechanism for remotely operating a circuit breaker as claimed in claim 1, wherein: handle mechanism (7) include flange (71) and rotate handle (72) of connection on flange (71), flange (71) set up on the lateral wall of the cabinet body (1), are equipped with connecting rod (73) in the inside of flange (71), connecting rod (73) pass the lateral wall of the cabinet body (1) and stretch into the cabinet body (1) inside, and the one end of connecting rod (73) is connected as connecting outer end (731) and the outside handle (72) of the cabinet body (1) rotates, and the other end of connecting rod (73) is connected inner (732) and the inside drive mechanism fixed connection of the cabinet body (1) as connecting, and when operating handle (72) moved to the positive direction, connect inner (732) and move to the direction of keeping away from flange (71), when operating handle (72) rotated to the opposite direction, connect outer end (731) and move to the direction of being close to flange (71).

16. A mechanism for remotely operating a circuit breaker as claimed in claim 2, wherein: the first conversion mechanism (3) comprises a first sliding mechanism provided with a stroke compensation mechanism, the first sliding mechanism comprises a first sliding block (32) provided with a first operation part (321), and a stroke compensation groove is formed in the first operation part (321);

the first conversion mechanism (3) comprises a first supporting panel (31) and a first sliding block (32), the first supporting panel (31) is arranged on the front face of the first circuit breaker (21), a first sliding structure is arranged between the first supporting panel (31) and the first sliding block (32), a first opening (311) parallel to the first sliding structure is arranged on the first supporting panel (31), and a first circuit breaker handle passes through the first opening (311) and can swing in the first opening (311); the first sliding block (32) is provided with a first connecting part (331), and the first connecting part (331) is fixedly connected with the first driving end (51); first slider (32) are equipped with first operation portion (321), and first operation portion (321) reserve in the wobbling direction of first circuit breaker handle and have the swing space as stroke compensation groove, first operation portion (321) are groove structure, stroke compensation groove symmetry is located the both sides of first operation portion (321), and the groove structure of first operation portion (321) communicates first recess as an organic whole with stroke compensation groove.

17. A mechanism for remotely operating a circuit breaker as claimed in claim 1, wherein: the shifter includes first conversion mechanism (3) and second conversion mechanism (4) with first circuit breaker handle and the coupling of second circuit breaker handle respectively, flexible axle (5) are equipped with stroke compensation structure including drive end be connected with the shifter and link (53) be connected with drive mechanism, flexible axle (5) of connection between drive mechanism and first conversion mechanism (3), and operating handle mechanism (7) drive flexible axle (5) motion, and stroke compensation structure is used for compensating the stroke length of first circuit breaker handle and the stroke length difference of second circuit breaker handle.

18. A mechanism for remotely operating a circuit breaker as claimed in claim 1, wherein: the flexible shaft (5) comprises a first connecting end and a second connecting end, the first connecting end and the second connecting end are respectively connected with the transmission mechanism, and the transmission mechanism is provided with a stroke compensation structure for compensating the difference between the stroke length of the first breaker handle and the stroke length of the second breaker handle;

the transmission mechanism comprises a stroke compensation transmission part and a transmission part (61), a stroke compensation groove is formed in the stroke compensation transmission part, the first connecting end and the stroke compensation groove are in sliding fit and used for compensating stroke difference between circuit breaker handles, and the second connecting end is rotatably connected with the transmission part (61).

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