CN214588688U - Circuit breaker interlocking structure - Google Patents

Abstract

The utility model belongs to the technical field of the circuit breaker, a circuit breaker interlocking structure is specifically disclosed. The circuit breaker interlocking structure includes: the circuit breakers are arranged side by side along a first direction, a rotating shaft for controlling the circuit breakers to be switched on and off is arranged in each circuit breaker, and the rotating shafts extend along the first direction; the interlocking assembly comprises a lock rod, wherein the lock rod penetrates through the opposite side walls of the circuit breakers in a sliding mode, when the circuit breakers are in an opening state, the rotating shaft can drive one end of the lock rod to rotate to a closing position from the opening position, and the other end of the lock rod can limit the other end of the rotating shaft to rotate to the closing position. The utility model discloses a circuit breaker interlocking structure can guarantee only a circuit breaker be in the switching on position at will with simple structure, improves the safety in utilization and the reliability of circuit breaker.

Description

Circuit breaker interlocking structure

Technical Field

The utility model relates to a circuit breaker technical field especially relates to a circuit breaker interlocking structure.

Background

The primary load, the secondary load and other important loads require to be provided with a standby power supply so as to form more than two power supply circuits. In order to ensure the safety of the power supply circuits, each power supply circuit is provided with a circuit breaker which can control and protect the circuit, and the on-off of the corresponding power supply circuit is controlled through the switching-on and switching-off operations of the circuit breakers.

Under the general condition, different power supply circuits can not be powered off simultaneously to avoid potential safety hazards such as short circuit, overload and the like, namely, the circuit breakers on the different power supply circuits can not be in a closing state simultaneously. In the prior art, a mechanical interlocking device is usually additionally arranged on two circuit breakers arranged side by side, so that the two circuit breakers are prevented from being switched on simultaneously.

The existing mechanical interlocking is a manual interlocking structure, is connected between two circuit breakers, can carry out the switching-off and switching-on operations of the circuit breakers only by manually shifting interlocking shifting pieces, and is not beneficial to the automatic control of the circuit breakers; meanwhile, the interlocking structure is arranged on the front surface of the circuit breaker and directly acts on an operating handle of the circuit breaker, so that the installation of an electric operating device or a manual rotating operating device is not facilitated, and the use mode of the circuit breaker is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circuit breaker interlocking structure to improve the safety in utilization and the convenience in use of circuit breaker.

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

a circuit breaker interlock arrangement comprising:

the circuit breakers are arranged side by side along a first direction, a rotating shaft for controlling the on-off of the circuit breakers is arranged in each circuit breaker in a rotating mode, and the rotating shaft extends along the first direction;

the interlocking assembly comprises a lock rod, wherein the lock rod penetrates through the opposite side walls of the circuit breakers in a sliding mode, when the circuit breakers are in an opening state, the rotating shaft can drive one end of the lock rod to rotate to a closing position from the opening position, so that the other end of the lock rod can abut against and limit the other end of the lock rod, and the rotating shaft rotates to the closing position.

As a preferred technical scheme of circuit breaker interlocking structure, each the pivot is towards another the one end terminal surface of pivot all is seted up flutedly, when two when the circuit breaker all is in the separating brake state, the both ends of locking lever can stretch into respectively and correspond in the recess, the actuating cell wall of recess can be in correspondence the pivot is closed a floodgate and is operated the time support and push the locking lever, so that the locking lever withdraws from corresponding the recess and deepens another the recess.

As a preferred technical solution of the circuit breaker interlocking structure, a groove bottom of the groove is perpendicular to the first direction, and an included angle between the actuating groove wall and the groove bottom is greater than 120 ° and less than 150 °.

As a preferred technical scheme of the circuit breaker interlocking structure, the two ends of each rotating shaft are provided with the grooves.

As a preferred technical scheme of circuit breaker interlocking structure, when two when the circuit breaker all is in the separating brake state, the locking lever is in initial condition, interlock subassembly still includes the elasticity piece that resets, the elasticity piece that resets is used for making the locking lever keep or reply to initial condition.

As a preferred technical scheme of circuit breaker interlocking structure, the circuit breaker includes protecgulum and the backshell of connecting along the second direction lock, the pivot with the backshell rotates to be connected, the backshell orientation the open slot has been seted up to the one side of protecgulum, the locking lever slides and wears to locate in the open slot, the second direction with the first direction is perpendicular.

As a preferred technical scheme of circuit breaker interlocking structure, the interlocking subassembly still includes the installed part, the installed part can be dismantled set up in on the backshell, the installed part has the shaft hole that link up, the locking lever slides and wears to locate in the shaft hole.

As a preferred technical scheme of the circuit breaker interlocking structure, two installation half grooves are respectively formed in the installation side walls of the two back shells, the two installation half grooves are oppositely arranged and surround to form installation grooves, the notches of the installation grooves face the front cover, and the installation pieces are installed in the installation grooves.

As a preferred technical scheme of the circuit breaker interlocking structure, the mounting half groove is a dovetail groove.

As a preferred technical scheme of the circuit breaker interlocking structure, notches of two opposite installation half grooves are arranged at intervals.

As a preferred technical scheme of a circuit breaker interlocking structure, the installed part includes two installation pieces that set up side by side along the second direction, and every installation piece has seted up the semi-axis groove towards another one side of installation piece, two the semi-axis groove of installation piece surrounds and forms the shaft hole.

As a preferable technical solution of the circuit breaker interlocking structure, the mounting block is a symmetrical structure, the mounting block has a first symmetrical surface, the first symmetrical surface is perpendicular to the second direction, and at least one of the two opposite sides of the semi-axis groove on the first symmetrical surface is provided; and/or

The mounting block is of a symmetrical structure and is provided with a second symmetrical surface, the second symmetrical surface is parallel to the first direction and the second direction, and at least one semi-axis groove is arranged on two opposite sides of the second symmetrical surface.

The beneficial effects of the utility model reside in that:

the utility model provides a circuit breaker interlocking structure, through setting up the gliding locking lever of ability relative the circuit breaker to actuate the locking lever through the pivot, can be when a circuit breaker switches over to the switching-on position, another circuit breaker can be spacing by the locking lever, prevent that another circuit breaker also from rotating to the switching-on position, avoid two circuit breakers to be in the combined floodgate state simultaneously, improve the safety in utilization and the reliability of circuit breaker; meanwhile, the locking rod acts on the rotating shaft positioned in the circuit breaker, so that the locking rod can be prevented from being arranged to interfere with the installation of the operating device, and the use convenience and flexibility of the circuit breaker are improved; in addition, the locking rod is actuated in the rotating process of the rotating shaft, so that the situation that the driving piece is adopted to drive the locking rod to act can be avoided, the synchronism of the rotating shaft action and the sliding action of the locking rod is ensured, the interlocking structure can be simplified, and the interlocking cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a circuit breaker interlocking structure provided by an embodiment of the present invention;

fig. 2 is a schematic diagram of a disassembled structure of an interlocking structure of a circuit breaker provided by an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at I;

fig. 4 is a cross-sectional view of a circuit breaker provided by an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a rotating shaft according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of the circuit breaker interlocking structure provided by the embodiment of the present invention after the front cover is removed;

FIG. 7 is an enlarged view of a portion of FIG. 6 at J;

fig. 8 is a schematic structural diagram of a mounting block according to an embodiment of the present invention.

The figures are labeled as follows:

1. a circuit breaker; 11. a base; 111. a rear housing; 1111. installing a side wall; 1112. an open slot; 1113. installing a half groove; 1114. mounting grooves; 112. a front cover; 1121. an operation port; 12. an operating handle; 13. a rotating shaft; 131. a contact support portion; 132. a shaft portion; 133. a working plate section; 134. a groove; 1341. the bottom of the tank; 1342. actuating the slot wall; 14. static contact; 141. a stationary contact; 15. a moving contact; 151. a movable contact; 16. a wire inlet end connecting plate; 17. a wire outlet end connecting plate;

2. an interlock assembly; 21. a lock lever; 22. a mounting member; 221. mounting blocks; 2211. a semi-axis groove; 2212. a limiting inclined plane; 2213. a connecting surface; 22. and the shaft hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

This embodiment provides a circuit breaker interlocking structure, and it can realize the interlocking control of two circuit breakers 1 that set up side by side with simple structure, guarantees that at any moment, only one circuit breaker can be in the combined floodgate state, improves the security of circuit that circuit breaker 1 used.

Specifically, as shown in fig. 1-3, the circuit breaker interlocking structure includes two circuit breakers 1 and an interlocking assembly 2, the two circuit breakers 1 are arranged side by side along a first direction, and a rotating shaft 13 capable of rotating to control the on-off of the circuit breakers 1 is arranged inside the circuit breakers 1; the interlocking component 2 is connected between the two circuit breakers 1, the interlocking component 2 comprises a locking rod 21 extending along a first direction, the locking rod 21 is slidably arranged on the opposite side walls of the two circuit breakers 1 in a penetrating mode, when the two circuit breakers 1 are in an opening state, any rotating shaft 13 can actuate one end of the locking rod 21 when the rotating shaft rotates to a closing position from the opening position, and therefore the other end of the locking rod 21 can limit the other rotating shaft 13 to rotate to the closing position.

According to the circuit breaker interlocking structure provided by the embodiment, the lock rod 21 capable of sliding relative to the circuit breaker 1 is arranged, and the lock rod 21 is actuated through the rotating shaft 13, so that when one circuit breaker 1 is switched to the switching-on position, the other circuit breaker 1 can be limited by the lock rod 21, the other circuit breaker 1 is prevented from rotating to the switching-on position, namely, the two circuit breakers 1 are prevented from being in the switching-on state at the same time, and the use safety and reliability of the circuit breaker 1 are improved; meanwhile, the locking rod 21 acts on the rotating shaft 13 positioned in the circuit breaker 1, so that the locking rod 21 can be prevented from being arranged to interfere with the installation of an operating device, and the use convenience and flexibility of the circuit breaker 1 are improved; moreover, by actuating the lock rod 21 in the rotation process of the rotating shaft 13, the situation that the lock rod 21 is driven to move by a driving piece can be avoided, the synchronism of the movement of the rotating shaft 13 and the sliding movement of the lock rod 21 is ensured, meanwhile, the interlocking structure can be simplified, and the interlocking cost is reduced.

As shown in fig. 2 and 4, preferably, in the present embodiment, the circuit breaker 1 includes a base 11 and conductive systems arranged side by side in the base 11, where each conductive system includes a wire inlet terminal connecting plate 16 and a wire outlet terminal connecting plate 17 respectively arranged at two ends of the base 11, and further includes a fixed contact 14 connected to the wire inlet terminal connecting plate 16 and a movable contact 15 connected to the wire outlet terminal connecting plate 17. One end of the movable contact 15 is provided with a movable contact 151, the stationary contact 14 is provided with a stationary contact 141, and the movable contact 151 is arranged opposite to the stationary contact 141. Moving contact 15 passes through elastic element and installs on pivot 13, and pivot 13 sets up with operating handle 12 linkage, through manual operation operating handle 12 or through operating device drive operating handle 12, makes operating handle 12 drive pivot 13 and rotates to drive moving contact 15 and rotate, so that make moving contact 151 and stationary contact 141 separation or contact, and then realize the separating brake or the closing operation of circuit breaker 1.

As shown in fig. 5 and 6, the rotating shaft 13 extends along the first direction, and the rotating shaft 13 includes a plurality of contact supporting portions 131 for mounting the movable contacts 15 and a shaft portion 132 connected between two adjacent contact supporting portions 131, the contact supporting portions 131 are arranged in one-to-one correspondence with the movable contacts 15, the shaft portion 132 is rotatably connected to the base 11, and the contact supporting portions 131 and the operating handle 12 are arranged in linkage through a connecting assembly.

As shown in fig. 5 and 7, a groove 134 is formed in an end surface of each of the rotating shafts 13 facing to one end surface of the other rotating shaft 13, when both the circuit breakers 1 are in the open state, both ends of the lock rod 21 can respectively extend into the corresponding grooves 134, and the actuating slot wall 1342 of the groove 134 can push the lock rod 21 when the corresponding rotating shaft 13 is in the close operation, so that the lock rod 21 exits the corresponding groove 134 and abuts against the end surface of the corresponding rotating shaft 13.

By providing the groove 134, when both the circuit breakers 1 are in the open state, if one of the rotating shafts 13 is switched from the open position to the close position, the rotating shaft 13 actuates the lock rod 21 through the actuating groove wall 1342, so that the lock rod 21 exits from the groove 134 and abuts against the end surface of the rotating shaft 13, and when the other circuit breaker 1 rotates along the close position, the lock rod 21 cannot slide in the direction away from the circuit breaker 1 due to the abutting limit function of the end surface and exits from the groove 134 of the circuit breaker 1, and thus, the end of the lock rod 21 located inside the groove 134 can abut against the groove wall of the groove 134, so as to limit the corresponding rotating shaft 13 from rotating to the close position. Meanwhile, since the lock lever 21 slides in the first direction, it exits from one groove 134 and extends into the other groove 134, thereby ensuring the stability of the abutment of the lock lever 21 with the other groove 134.

In the embodiment, the locking is realized by the matching of the groove 134 and the lock rod 21, the structure is simple, and the control is easy. In other embodiments, a protrusion may be protruded on an end surface of the rotating shaft 13, so that one of the rotating shafts actuates the lock lever 21 to slide through the protrusion, and the protrusion on the other rotating shaft 13 abuts against the lock lever 21 to limit the rotation of the rotating shaft 13.

When the two circuit breakers 1 are in the opening state and the two ends of the lock rod 21 respectively extend into the grooves 134 by the preset depth, the interlocking assembly 2 is in the initial state; when one circuit breaker 1 is in a closed state and the other circuit breaker 1 is in an open state, the lock rod 21 is in an interlocking state, and at the moment, the circuit breaker 1 in the open state cannot rotate to the closed state under the stopping action of the lock rod 21. For convenience of description, the circuit breaker 1 in the interlocking state in the closing state is referred to as a first circuit breaker, and the circuit breaker 1 in the opening state is referred to as a second circuit breaker.

The groove 134 has a groove bottom 1341 perpendicular to the first direction, and when the interlock assembly 2 is in the initial state, the end of each lock rod 21 and the corresponding groove bottom 1341 have a first clearance, and the first clearance provides a movable stroke for the lock rod 21 to slide along the first direction. Preferably, the first gap is equal to half of the depth of the groove 134, so that when one end of the lock bar 21 exits from one groove 134, the other end of the lock bar 21 abuts against the groove bottom 1341 of the other groove 134, increasing the stopping effect on the circuit breaker 1.

The included angle between the actuating slot wall 1342 and the slot bottom 1341 is greater than 90 °, so that after the actuating slot wall 1342 abuts against the lock rod 21, the lock rod 21 can exit from the groove 134 along the actuating slot wall 1342, the sliding resistance of the lock rod 21 and the rotation resistance of the rotating shaft 13 are reduced, and the smoothness of the lock rod 21 exiting from the groove 134 is improved. Preferably, the angle between the actuating slot wall 1342 and the slot bottom 1341 is greater than 120 ° and less than 150 °. And preferably, when the interlock assembly 2 is in the initial state, the actuating slot wall 1342 is spaced from the lock bar 21 to reduce the machining precision requirement and reduce the assembly difficulty.

Both ends of every pivot 13 are preferred all to be provided with recess 134 to improve the replaceability of pivot 13, and circuit breaker 1 can realize interlocking setting with the circuit breaker 1 of controlling any side, improves the installation convenience and the flexibility of use of circuit breaker 1. However, it is understood that the groove 134 may be formed at only one end of the rotating shaft 13 close to the other rotating shaft 13.

For the convenience of seting up the recess 134, every terminal surface of pivot 13 all has the effect board 133 along its radial extension, and the effect board 133 at pivot 13 both ends sets up relatively, and foretell recess 134 has been seted up to the lateral surface of effect board 133 to improve the convenience of seting up of recess 134, be favorable to guaranteeing the groove area of recess 134. When the two circuit breakers 1 are both in the opening state, the action plate portions 133 of the two rotating shafts 13 are arranged oppositely and at intervals.

The recess 134 preferably has a side notch extending through the action plate portion 133 to facilitate the insertion of the end of the lock lever 21 into the recess 134 through the side notch in the initial installation state. When the circuit breaker 1 is in the opening state, the side notch faces the front side surface of the circuit breaker 1 to facilitate the installation of the lock lever 21.

In this embodiment, the recess 134 is a scalloped groove having two side groove walls that are connected at an included angle, with one of the side groove walls forming the actuation groove wall 1342 described above. The groove 134 is a fan-shaped groove, so that the structure of the groove 134 can be simplified, and the processing of the groove 134 is facilitated. It is understood that the recess 134 may have other shapes, such as trapezoidal, rectangular, etc., and the present invention is not limited thereto.

In order to ensure that the locking bar 21 can be better reset to the initial state after the circuit breaker 1 is switched from the closing state to the opening state, the interlock assembly 2 further includes an elastic reset member (not shown) for applying an elastic force to the locking bar 21 to maintain or restore the locking bar 21 to the initial state. The setting of elasticity piece that resets can make interlocking subassembly 2 automatic reply to initial condition after circuit breaker 1 switches over to the separating brake state by the combined floodgate to supply the combined floodgate operation of next circuit breaker 1.

Preferably, the elastic reset piece is sleeved on the lock rod 21, one end of the elastic reset piece is fixed relative to the base 11, and the other end of the elastic reset piece is connected to the lock rod 21. When the lock rod 21 is in the initial state, the elastic reset piece is in the original length state; when the lock lever 21 slides toward the inside of the one-side groove 134, the elastic restoring member is in an elongated state; when the lock lever 21 slides toward the inside of the recess 134 of the other side, the elastic restoring member is in a compressed state. In other embodiments, the elastic restoring element may also adopt other structures capable of restoring the lock lever 21, such as an elastic pad, an air spring, a butterfly washer, and the like.

It should be noted that, when there is no elastic reset element, if the circuit breaker 1 in the closing state is switched to the opening state, another circuit breaker 1 in the opening state can also be switched to the closing state. Specifically, referring to fig. 7, if there is no elastic reset element, after the circuit breaker 1 in the closed state (referred to as a first circuit breaker) is switched to the open state, both circuit breakers 1 are in the open state, and the interlocking assembly 2 is still in the interlocking state due to the absence of the external reset force, one end of the locking rod 21 is located outside the groove 134 of the first circuit breaker and faces the groove 134, and the other end of the locking rod 21 is located inside the groove 134 of the second circuit breaker, at this time, if the second circuit breaker is switched from the opening state to the closing state, the actuating slot wall 1342 of the groove 134 of the second circuit breaker pushes the locking bar 21, so that the end of the locking bar 21 exits from the groove 134 of the second circuit breaker and abuts against the end surface of the rotating shaft 13 of the circuit breaker, and the other end of the locking bar 21 enters the groove of the other circuit breaker 1 and restricts the other circuit breaker 1 from switching from the open state to the closed state.

It can be understood that when there is no elastic reset element, when the circuit breaker 1 (referred to as a first circuit breaker) in the closing state is switched from the closing state to the opening state, since the interlocking assembly 2 is still in the interlocking state, that is, the locking bar 21 is located outside the groove 134 of the first circuit breaker, the locking bar 21 does not prevent the first circuit breaker from being switched from the opening state to the closing state again.

As shown in fig. 3, 7 and 8, in the present embodiment, the base 11 includes a rear shell 111 and a front cover 112 that are snap-connected along a second direction, the rear shell 111 and the front cover 112 are detachably connected by screws or the like, and the second direction is perpendicular to the first direction. The rotating shaft 13 is rotatably installed in the rear case 111, and the conductive systems of the circuit breaker 1, such as the fixed contact 14 and the movable contact 15, are mainly installed in the rear case 111. An operation opening 1121 is formed in the front cover 112, and the operation handle 12 is exposed out of a surface of the front cover 112 away from the rear shell 111 through the operation opening 1121. The structure of the front cover 112 and the rear case 111 can refer to the arrangement of the existing circuit breaker 1, and the detailed description is omitted.

A side wall of the rear case 111 close to the other circuit breaker 1 forms a mounting side wall 1111 for mounting the interlock assembly 2, the mounting side walls 1111 of the two circuit breakers 1 are arranged in close proximity, and the lock rod 21 is slidably disposed through the mounting side walls 1111 of the two circuit breakers 1. Each of the plate portions 133 is disposed opposite to the mounting side wall 1111 with a gap therebetween, so as to prevent the rotation shaft 13 from abutting against the inner wall surface of the mounting side wall 1111 to increase the rotation resistance.

In this embodiment, the mounting side wall 1111 is opened with an opening groove 1112 at a side facing the front cover 112, the opening groove 1112 penetrates through the inner and outer surfaces of the mounting side wall 1111, the opening grooves 1112 of the two mounting side walls 1111 are oppositely disposed, and the lock lever 21 is slidably inserted into the opening groove 1112. The arrangement of the open grooves 1112 enables the interlocking assembly 2 to be installed after all parts in the rear shells 111 of the two circuit breakers 1 are assembled, and the installation convenience of the interlocking assembly 2 and the overall installation efficiency of the circuit breaker interlocking structure are improved.

In other embodiments, the mounting side walls 1111 may be provided with mounting holes, the mounting holes of the two mounting side walls 1111 are disposed opposite to each other, and the lock rod 21 is inserted into the mounting holes. Or the lock lever 21 may be mounted to the rear case 111 by a mounting structure.

Preferably, the locking lever 21 has a straight-line structure to simplify the structure and facilitate the sliding connection with the mounting sidewall 1111. It is understood that while other structures may be used to mount the lock lever 21, other structures may be used for the lock lever 21, as long as the lock lever 21 is slidable along the opposite mounting side walls 1111 in the first direction and both ends thereof extend in the first direction. It is further preferable that the lock lever 21 has a cylindrical shape to reduce sliding friction of the lock lever 21.

In order to prevent the lock rod 21 from leaving the opening groove 1112, the interlock assembly 2 further includes a mounting member 22, the mounting member 22 has a shaft hole 23, the lock rod 21 is slidably inserted into the shaft hole 23, and the mounting member 22 is detachably disposed on the base 11. With this arrangement, the setting stability and the mounting convenience of the lock lever 21 can be improved. In other embodiments, the bottom of the opening groove 1112 may be in a shape adapted to the lock rod 21, and a position-limiting structure for preventing the lock rod 21 from being disengaged is disposed at the notch of the opening groove 1112; or, a matching groove adapted to the opening groove 1112 is formed in one surface of the front cover 112 facing the rear shell 111, the matching groove and the opening groove 1112 surround to form an installation hole having a cross-sectional shape adapted to the lock lever 21, and the lock lever 21 is inserted into the installation hole.

Further, the installation side wall 1111 has been seted up towards the one side of another circuit breaker 1 installation half groove 1113, and installation half groove 1113 link up installation side wall 1111 towards the one side of front cover 112, and two circuit breaker 1's installation half groove 1113 surround and are formed with mounting groove 1114, and the installed part 22 holding is in mounting groove 1114, and can get into or withdraw from mounting groove 1114 through the front side opening of mounting groove 1114. With this arrangement, the mounting/dismounting convenience of the mounting member 22 can be improved, and the mounting/dismounting convenience of the interlock assembly 2 can be improved.

The mounting member 22 preferably includes two mounting blocks 221 arranged side by side along the second direction, a side surface of one of the mounting blocks 221 facing the other mounting block 221 is provided with an axle slot 2211, and the axle slots 2211 of the two mounting blocks 221 surround the axle hole 23.

In the above arrangement, when the interlocking block 2 is installed, one of the installation blocks 221 is first placed in the installation groove 1114 and abuts against the groove bottom of the installation groove 1114, and the notch of the half shaft groove 2211 of the installation block 221 is arranged towards the front cover 112; next, the lock lever 21 is pushed in from the notch of the open groove 1112, and the lock lever 21 is caused to enter the half-shaft groove 2211; pushing the other mounting block 221 into the mounting groove 1114 to enable the half shaft grooves 2211 of the two mounting blocks 221 to be buckled to form the shaft hole 23 so as to limit the lock rod 21; finally, the front cover 112 is connected with the rear case 111 to close the notch of the mounting groove 1114, preventing the mounting member 22 from being separated from the mounting groove 1114, i.e., achieving stable mounting of the mounting member 22, thereby achieving stable mounting of the interlock assembly 2.

In other embodiments, the mounting member 22 may also be connected to the base 11 in a threaded or snap connection manner, and the mounting member 22 may also be integrally disposed, as long as the mounting and limiting of the locking rod 21 by the mounting member 22 can be achieved, and this embodiment is not illustrated for other structures that can achieve the mounting of the locking rod 21 by the mounting member 22.

The mounting half-groove 1113 is preferably a dovetail groove, i.e., the groove bottom width of the mounting half-groove 1113 is smaller than the notch width thereof, and the cross-sectional shape of the mounting member 22 is adapted to the shape of the mounting groove 1114. The setting of installation half groove 1113 can prevent that installed part 22 from following the first direction and sliding in installation groove 1114 to avoid locking lever 21 to follow the first direction and slide under the drive of installed part 22, improve the stability and the reliability of setting up of installed part 22. It is understood that the mounting half-slot 1113 may be a rectangular slot or a slot of other shape, as long as the snap-fit mounting slot 1114 is implemented to stabilize the mounting member 22.

Two ends of the mounting block 221 in the third direction are both provided with two limit inclined planes 2212 abutted to the side groove walls of the dovetail groove, and the two limit inclined planes 2212 at the same end extend in the direction away from each other. Preferably, the notches of the two mounting half slots 1113 are spaced apart, so that a connecting surface 2213 is connected between the two limiting inclined surfaces 2212, and the connecting surface 2213 can be perpendicular to the third direction. This kind of setting can avoid two spacing inclined planes 2212 directly to intersect, reduces the processing degree of difficulty to installation piece 221.

Preferably, the body of the mounting block 221 has a hexahedral block structure so that the mounting block 221 can be better attached to the bottom of the mounting groove 1114 and to another mounting block 221.

Further, the mounting block 221 has an axisymmetrical structure, the mounting block 221 has a first symmetric surface perpendicular to the second direction, and at least one half-shaft slot 2211 is disposed on two opposite sides of the first symmetric surface; and/or the mounting block 221 is an axisymmetrical structure, the mounting block 221 has a second symmetric surface, the second symmetric surface is parallel to both the first direction and the second direction, and at least one of the half-shaft slots 2211 is disposed on both opposite sides of the second symmetric surface. This arrangement is advantageous for improving the versatility of the mounting block 221, and the half-shaft slot 2211 for passing through the lock lever 21 can be selected according to the wear condition of the half-shaft slot 2211, thereby improving the flexibility and convenience of use of the interlocking assembly 2, and improving the service life of the interlocking assembly 2.

It is understood that the sizes of the lock lever 21 and the mounting block 221 may be adaptively set according to the mounting interval between the two side-by-side circuit breakers 1, the interval between the rotating shaft 13 and the mounting sidewall, the thickness of the mounting sidewall 1111, and the like, and the present invention is not limited thereto.

The circuit breaker 1 can be but is not limited to molded case circuit breaker, reclosing circuit breaker, molded case leakage circuit breaker, etc., and other structures of the circuit breaker 1 can be set by referring to the prior art, which is not described herein again.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (12)

1. A circuit breaker interlock structure, comprising:

the circuit breaker comprises circuit breakers (1), wherein two circuit breakers are arranged side by side along a first direction, a rotating shaft (13) for controlling the on-off of the circuit breakers (1) in a rotating mode is arranged inside each circuit breaker (1), and the rotating shaft (13) extends along the first direction;

interlocking subassembly (2), including locking lever (21), locking lever (21) slide to wear to locate two on the relative lateral wall of circuit breaker (1), work as two when circuit breaker (1) all is in the separating brake state, arbitrary pivot (13) homoenergetic actuates when rotating to the switching-on position by the separating brake position the one end of locking lever (21), so that the other end of locking lever (21) can restrict another pivot (13) rotate to the switching-on position.

2. The circuit breaker interlocking structure according to claim 1, wherein a groove (134) is formed in an end surface of one end of each rotating shaft (13) facing the other rotating shaft (13), when the two circuit breakers (1) are in an open state, two ends of the locking rod (21) can respectively extend into the corresponding grooves (134), and an actuating groove wall (1342) of each groove (134) can push the locking rod (21) when the corresponding rotating shaft (13) is in a close operation, so that the locking rod (21) exits from the corresponding groove (134) and abuts against the end surface of the corresponding rotating shaft (13).

3. The circuit breaker interlock structure of claim 2 wherein a slot bottom (1341) of said recess (134) is perpendicular to said first direction and said actuating slot wall (1342) is angled from said slot bottom (1341) by more than 120 ° and less than 150 °.

4. The circuit breaker interlocking structure according to claim 2, wherein both ends of each of the rotary shafts (13) are provided with the grooves (134).

5. The circuit breaker interlocking structure according to claim 1, characterized in that when both of the circuit breakers (1) are in the opening state, the locking bar (21) is in an initial state, and the interlocking assembly (2) further comprises an elastic resetting member for keeping or returning the locking bar (21) to the initial state.

6. The circuit breaker interlocking structure according to any one of claims 1-5, characterized in that the circuit breaker (1) comprises a front cover (112) and a rear shell (111) which are connected in a buckled manner along a second direction, the rotating shaft (13) is rotatably connected with the rear shell (111), an open slot (1112) is opened on one surface of the rear shell (111) facing the front cover (112), the lock rod (21) is slidably arranged in the open slot (1112), and the second direction is perpendicular to the first direction.

7. The circuit breaker interlocking structure according to claim 6, wherein the interlocking assembly (2) further comprises a mounting member (22), the mounting member (22) is detachably disposed on the rear housing (111), the mounting member (22) has a through shaft hole (23), and the lock rod (21) is slidably disposed in the shaft hole (23).

8. The circuit breaker interlocking structure according to claim 7, characterized in that the mounting half grooves (1113) are opened on the opposite mounting side walls (1111) of the two rear cases (111), the two mounting half grooves (1113) are oppositely arranged and surround to form a mounting groove (1114), the notch of the mounting groove (1114) faces the front cover (112), and the mounting member (22) is mounted in the mounting groove (1114).

9. The circuit breaker interlocking structure according to claim 8, wherein the mounting half-groove (1113) is a dovetail groove.

10. The circuit breaker interlock structure according to claim 9, wherein the notches of two opposing mounting half-slots (1113) are spaced apart.

11. The circuit breaker interlocking structure according to claim 8, wherein the mounting member (22) comprises two mounting blocks (221) arranged side by side along the second direction, a half shaft groove (2211) is opened on one side of each mounting block (221) facing the other mounting block (221), and the half shaft grooves (2211) of the two mounting blocks (221) surround to form the shaft hole (23).

12. The circuit breaker interlocking structure according to claim 11, wherein the mounting block (221) is a symmetrical structure, the mounting block (221) has a first symmetrical surface perpendicular to the second direction, and the semi-axis groove (2211) is provided with at least one on opposite sides of the first symmetrical surface; and/or

The mounting block (221) is of a symmetrical structure, the mounting block (221) is provided with a second symmetrical surface, the second symmetrical surface is parallel to the first direction and the second direction, and at least one semi-axis groove (2211) is arranged on two opposite sides of the second symmetrical surface.

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