CN216902654U - Tripping device and isolating switch - Google Patents

Abstract

The application provides a trip gear and isolator relates to low-voltage apparatus technical field, including the base and set up hasp subassembly, one-level deblocking piece, second grade deblocking piece and magnetic flux dropout subassembly on the base, one-level deblocking piece and hasp subassembly joint, magnetic flux dropout subassembly drive second grade deblocking piece drive one-level deblocking piece and hasp subassembly relieve the joint to make the hasp subassembly can drive the separating brake of actuating mechanism. Because only by a spare part of second grade unlocking piece in this application establish the drive with magnetic flux tripping assembly, one-level unlocking piece respectively and thereby realized the dropout function, consequently, can effectually simplify the required spare part quantity of realization dropout function, simplify trip gear's structure.

Description

Tripping device and isolating switch

Technical Field

The application relates to the technical field of low-voltage electrical appliances, in particular to a tripping device and an isolating switch.

Background

The isolating switch is a switch device which is mainly used for isolating a power supply and switching over, communicating and cutting off a small current circuit and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have insulation distance meeting the specified requirements and obvious disconnection marks; a switching device capable of carrying current in normal loop conditions and current in abnormal conditions (e.g., short circuit) for a specified period of time when in the closed position.

When the circuit of the isolating switch breaks down, the tripping device can quickly open the brake, so that the aim of protecting the circuit is fulfilled. However, when the existing tripping device drives the disconnecting switch to open, a complex transmission part is needed to realize the tripping operation, so that the tripping device is complex.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide a trip device and a disconnecting switch, aiming at the defects in the prior art, so as to solve the problem that the existing trip device has complex parts.

In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:

the one side of the embodiment of the application provides a trip gear, include the base and set up the hasp subassembly on the base, one-level deblocking spare, second grade deblocking spare and magnetic flux dropout subassembly, magnetic flux dropout subassembly passes through second grade deblocking spare and is connected with the drive of one-level deblocking spare, one-level deblocking spare and hasp subassembly joint, magnetic flux dropout subassembly drive second grade deblocking spare drives one-level deblocking spare and hasp subassembly and removes the joint to make hasp subassembly drive action mechanism separating brake.

Optionally, the tripping device further comprises a resetting piece, wherein the resetting piece is respectively in driving fit with the second-stage unlocking piece and the action mechanism, so that when the action mechanism is switched off, the action mechanism drives the resetting piece to drive the magnetic flux tripping assembly to reset through the second-stage unlocking piece.

Optionally, the second grade unlocking piece rotates and sets up in the base, and magnetic flux tripping assembly drive second grade unlocking piece forward rotation is in order to drive one-level unlocking piece and hasp subassembly unblock, and the messenger resets and drives second grade unlocking piece reverse rotation and resets in order to drive magnetic flux tripping assembly and reset.

Optionally, the second-stage unlocking member has an arc-shaped wall, the resetting member has a driving wall opposite to the arc-shaped wall, and when the resetting member drives the second-stage unlocking member to rotate reversely, the driving wall is tangent to the arc-shaped wall.

Optionally, the reset component and the magnetic flux tripping component are respectively located on two opposite sides of the second-stage unlocking component.

Optionally, the second grade unlocking piece has first drive division and the second drive division that is located the relative both sides of second grade unlocking piece rotation center, first drive division respectively with magnetic flux tripping assembly with reset a cooperation drive, second drive division and one-level unlocking piece cooperation drive.

Optionally, the first driving portion has a bending portion driven by matching with the magnetic flux tripping assembly.

Optionally, the trip device further comprises a first elastic member, the first elastic member is connected with the second-stage unlocking member, and is used for providing acting force for the second-stage unlocking member, so that the second-stage unlocking member has a tendency of abutting against the magnetic flux trip assembly.

Optionally, trip gear still includes the second elastic component, and the second elastic component is connected with one-level unlocking piece for provide the effort to one-level unlocking piece, so that one-level unlocking piece has the trend with second grade unlocking piece butt.

Optionally, the locking assembly comprises a locking piece and a tripping piece, the first-stage unlocking piece is connected with the locking piece in a clamped mode, and the locking piece is connected with the tripping piece in a clamped mode so that the tripping piece drives the actuating mechanism to open the brake when the first-stage unlocking piece and the locking piece are disconnected in the clamped mode.

On the other hand of the embodiment of the application, an isolating switch is provided, which comprises a switch body, an actuating mechanism and any one of the tripping devices, wherein the actuating mechanism is arranged on a base of the tripping device, a lock catch assembly of the tripping device is in driving connection with the actuating mechanism, and the actuating mechanism is in driving connection with the switch body.

The beneficial effect of this application includes:

the application provides a trip gear and isolator, including the base and set up hasp subassembly, one-level deblocking piece, second grade deblocking piece and the magnetic flux dropout subassembly on the base, one-level deblocking piece and hasp subassembly joint, magnetic flux dropout subassembly drive second grade deblocking piece drive one-level deblocking piece and hasp subassembly relieve the joint to make the hasp subassembly can drive the action mechanism separating brake. Because only by a spare part of second grade unlocking piece in this application establish the drive with magnetic flux tripping assembly, one-level unlocking piece respectively and thereby realized the dropout function, consequently, can effectually simplify the required spare part quantity of realization dropout function, simplify trip gear's structure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural view of a trip device and an actuating mechanism located on a base in a matching manner according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram illustrating a state in which a trip device is engaged with an actuating mechanism according to an embodiment of the present disclosure;

fig. 3 is a second schematic view illustrating a state in which a trip device provided by the embodiment of the present application is engaged with an actuating mechanism;

fig. 4 is a third schematic view illustrating a state where a trip device provided by the embodiment of the present application is engaged with an actuating mechanism;

fig. 5 is a fourth schematic view illustrating a state where a trip device provided in the embodiment of the present application is engaged with an actuating mechanism;

FIG. 6 is a schematic diagram of a two-stage unlocking element according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a trip device and an actuating mechanism according to another embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of an isolation switch according to an embodiment of the present application.

Icon: 10-an isolating switch; 100-a base; 110-a base; 120-upper cover; 200-an action mechanism; 310-snap fastener; 320-a catch member; 330-a latch assembly; 340-primary unlocking member; 350-secondary unlocking member; 351-arc wall; 352-center of rotation; 353 — first drive; 354-second drive; 360-a magnetic flux trip assembly; 370-a reset member; 371 — drive wall; 410-a handle; 420-switch body.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. It should be noted that, in case of conflict, various features of the embodiments of the present application may be combined with each other, and the combined embodiments are still within the scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are only for convenience of describing the present application and simplifying the description, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In one aspect of the embodiments of the present application, a trip device is provided, as shown in fig. 1 and fig. 2, including a base 100, a latch assembly 330, a first-level unlocking piece 340, a second-level unlocking piece 350, and a magnetic flux trip assembly 360, where the latch assembly 330, the first-level unlocking piece 340, the second-level unlocking piece 350, and the magnetic flux trip assembly 360 are all disposed on the base 100.

The latch assembly 330 is drivingly connected to the actuating mechanism 200, and it should be understood that in the case of the disconnector 10 employing the actuating mechanism 200, the closing or opening state of the actuating mechanism 200 should be consistent with the closing or opening state of the disconnector 10. When the actuating mechanism 200 is in a closing state, the latch assembly 330 and the primary unlocking piece 340 need to be clamped, so that the whole formed by the actuating mechanism 200 and the latch assembly 330 can be in a stable balanced state, and when the tripping device needs to drive the closing actuating mechanism 200 to be opened, the stable balanced state of the whole formed by the latch assembly 330 and the actuating mechanism 200 can be damaged by releasing the clamping of the latch assembly 330 and the primary unlocking piece 340, so that the latch assembly 330 drives the actuating mechanism 200 to be opened. It should be understood that the latch assembly 330 is drivingly connected to the actuating mechanism 200, and when the latch assembly 330 is engaged with the first-stage unlocking member 340, the actuating mechanism 200 has a degree of freedom to implement normal closing or opening; when the latch assembly 330 is released from the primary unlocking member 340, the latch assembly 330 and the actuating mechanism 200 have two degrees of freedom, and thus, the stable state of the actuating mechanism 200 is destroyed, and the actuating mechanism 200 cannot be kept at the switching-on position for switching-off, that is, the actuating mechanism 200 is driven by the latch assembly 330 to switch-off.

The primary unlocking member 340 may be movably disposed on the base 100, and in its initial position, the primary unlocking member 340 can be engaged with the locking member 330.

The secondary unlocking member 350 may be movably disposed on the base 100, and when the secondary unlocking member 350 is located at the initial position, the magnetic flux trip unit 360 is also located at the initial position, and the magnetic flux trip unit 360 can establish driving with the primary unlocking member 340 through the secondary unlocking member 350.

As shown in fig. 1 and 2, the magnetic flux tripping assembly 360, the secondary unlocking member 350, and the primary unlocking member 340 are all at initial positions, and the primary unlocking member 340 is clamped with the locking assembly 330, so that in this state, external force can normally act on the actuating mechanism 200 itself, and the actuating mechanism 200 is switched on or switched off.

When the switching-off of the actuating mechanism 200 needs to be realized through the magnetic flux tripping assembly 360, the magnetic flux tripping assembly 360 can be energized, so that the push rod in the magnetic flux tripping assembly 360 extends out to leave the initial position, and then the second-stage unlocking piece 350 is driven to move (the second-stage unlocking piece 350 leaves the initial position), and then the second-stage unlocking piece 350 drives the first-stage unlocking piece 340 to move (the first-stage unlocking piece 340 leaves the initial position), and due to the movement of the first-stage unlocking piece 340, the first-stage unlocking piece 340 is separated from the locking assembly 330, so that the unlocking and connecting of the first-stage unlocking piece 340 and the locking assembly 330 are realized, and at this time, the tripping device is in the state shown in fig. 3. Next, as shown in fig. 4 and fig. 5, since the primary unlocking piece 340 no longer limits the latch assembly 330, the actuating mechanism 200 can be driven by the latch assembly 330 to open, and the actuating mechanism 200 starts to move in a counterclockwise direction (opening direction), so that the actuating mechanism 200 is driven by the trip device to open. In the scene that the switching-off needs to be realized through the magnetic flux tripping assembly 360, the switching-off can be remotely controlled, and the switching-off needs to be timely carried out when a circuit fault occurs, so that the application is not limited to the applied scene.

In summary, in the present application, only one component of the secondary unlocking piece 350 is driven by the magnetic flux tripping assembly 360 and the primary unlocking piece 340 respectively, so as to implement the tripping function, thereby effectively simplifying the number of components required for implementing the tripping function and simplifying the structure of the tripping device.

Optionally, as shown in fig. 1 to 5 and 7, the trip device further includes a reset element 370, and the reset element 370 is in driving engagement with the two-stage unlocking element 350 and the actuating mechanism 200, respectively, where as shown in fig. 3 to 5, the reset element 370 is in driving engagement with the actuating mechanism 200, and the reset element 370 can be driven to move during the process that the actuating mechanism 200 moves towards the opening direction. When the tripping device drives the actuating mechanism 200 to open the brake, because the actuating mechanism 200 can drive the reset piece 370 to move, and the reset piece 370 and the second-stage unlocking piece 350 can establish a driving relationship, therefore, the second-stage unlocking piece 350 can be driven to reset through the movement of the reset piece 370, namely, the initial position is returned, and meanwhile, because the reset of the second-stage unlocking piece 350, the push rod of the magnetic flux tripping assembly 360 is also synchronously driven to retract to reset, so as to prepare for the next action, thereby being capable of realizing the automatic reset of the magnetic flux tripping assembly 360 by using the reset piece 370 on the basis that the magnetic flux tripping assembly 360 is used as a driving source to realize the brake opening.

In some embodiments, the reset member 370 may be a separate component (not shown) disposed on the base 100, and the reset member 370 can be driven by the actuating mechanism 200 during opening to reset the magnetic flux trip assembly 360; certainly, in some embodiments, the resetting element 370 may also be integrated on the actuating mechanism 200, for example, as shown in fig. 1 to 5, the resetting element 370 is a boss disposed on the outer periphery of the actuating mechanism 200, or as shown in fig. 7, the resetting element 370 is a folded edge disposed on the outer periphery of the actuating mechanism 200, so that in the process that the actuating mechanism 200 rotates toward the opening direction, as shown in fig. 3 to 5, when the resetting element 370 moves to the second-stage unlocking element 350, the second-stage unlocking element 350 can be driven to reset correspondingly, so that the resetting of the actuating mechanism 200 driving the second-stage unlocking element 350 in the opening process can be realized by only adding the resetting element 370 to the actuating mechanism 200, and the problems of a large number of parts and a large volume caused by additionally providing separate parts are avoided, specifically:

when the door needs to be closed, as shown in fig. 5, the actuating mechanism 200 is in the opening position, and in this state, the actuating mechanism 200 is driven by an external force to rotate clockwise to the closing position, as shown in fig. 1 and 2, the actuating mechanism 200 is in the closing position, and the reset piece 370 is separated from the secondary unlocking piece 350 along with the movement of the actuating mechanism 200.

When the switching-off is needed, as shown in fig. 3 and 4, the magnetic flux tripping assembly 360 is energized, so that the push rod in the magnetic flux tripping assembly 360 extends out to leave the initial position, and then the secondary unlocking piece 350 is driven to move to leave the initial position, and then the primary unlocking piece 340 is driven by the secondary unlocking piece 350 to move to leave the initial position, so that the clamping between the primary unlocking piece 340 and the locking assembly 330 is released, and the actuating mechanism 200 is driven by the locking assembly 330 to switch-off.

Because the magnetic flux tripping assembly 360 is adopted to realize the opening of the actuating mechanism 200, therefore, the push rod of the magnetic flux tripping assembly 360 can extend out, the secondary unlocking piece 350 can leave the initial position, at this time, in the process that the actuating mechanism 200 moves towards the counterclockwise direction (opening direction), the secondary unlocking piece 350 can be driven by the resetting piece 370 to reset (return to the initial position), when the secondary unlocking piece 350 resets, the secondary unlocking piece 350 drives the magnetic flux tripping assembly 360 to reset (return to the initial position), preparation is made for the next power-on opening of the magnetic flux tripping assembly 360, and at this time, the tripping device is in the state shown in fig. 5. It should be appreciated that when the actuator 200 returns to the tripped position, as shown in fig. 5, the flux trip assembly 360 and the secondary trip block 350 similarly return to the initial position.

To sum up, this application establishes the drive relation of magnetic flux tripping assembly 360 and one-level unlocking piece 340 through second grade unlocking piece 350, realize when needs separating brake, drive second grade unlocking piece 350 by magnetic flux tripping assembly 360 and drive one-level unlocking piece 340 and hasp subassembly 330 and remove the joint and make hasp subassembly 330 drive actuating mechanism 200 carry out the separating brake, and at actuating mechanism 200 towards the in-process of separating brake direction motion, can correspond and drive second grade unlocking piece 350 and magnetic flux tripping assembly 360 through piece 370 that resets and reset, the automatic re-setting of magnetic flux tripping assembly 360 has been realized, the manual loaded down with trivial details operation that resets of needs has been avoided, improve the convenience in the in-service use. In addition, since only one part of the secondary unlocking piece 350 is respectively driven by the magnetic flux tripping assembly 360, the primary unlocking piece 340 and the resetting piece 370 to realize the functions, the number of parts required for realizing the functions can be effectively reduced, and the volume and the manufacturing cost are reduced.

In some embodiments, the reset element 370 may also be separately disposed on a component (not shown) of the base 100, which is in driving fit with the secondary unlocking element 350 but not in driving fit with the actuating mechanism 200, that is, after the magnetic flux tripping assembly 360 is used as a driving source to drive the primary unlocking element 340 and the locking assembly 330 through the secondary unlocking element 350 to release the clamping, the locking assembly 330 drives the actuating mechanism 200 to open, and when the secondary unlocking element 350 and the magnetic flux tripping assembly 360 need to be reset, the reset element 370 may be driven by an external force, and the reset element 370 pushes the secondary unlocking element 350 and the magnetic flux tripping assembly 360 to reset. For example, the reset member 370 is a reset rod, which is manually driven by an operator to reset the two-stage unlocking member 350 and the magnetic flux trip unit 360.

Alternatively, as shown in fig. 1 and 6, the secondary unlocking member 350 is rotatably disposed on the base 100 through a rotating shaft, so that in the process of opening the brake by using the magnetic flux trip unit 360 as a driving source, the two-stage unlocking member may be: as shown in fig. 3, after the magnetic flux trip assembly 360 is powered on, the push rod of the magnetic flux trip assembly 360 extends out to drive the secondary unlocking piece 350 to rotate clockwise (rotate forward), and then the secondary unlocking piece 350 drives the primary unlocking piece 340 to move so as to release the clamping between the primary unlocking piece 340 and the locking assembly 330, so that the locking assembly 330 can drive the actuating mechanism 200 to open. As shown in fig. 4 and 5, during the movement of the actuating mechanism 200 toward the opening direction, the reset member 370 may drive the secondary unlocking member 350 to rotate counterclockwise (rotate in the opposite direction), so as to drive the plunger of the magnetic flux trip unit 360 to retract for resetting.

Optionally, as shown in fig. 1, the first-stage unlocking piece 340 is rotatably disposed on the base 100, and when the second-stage unlocking piece 350 is driven by the magnetic flux tripping assembly 360 to rotate clockwise, the first-stage unlocking piece 340 is driven to rotate counterclockwise, so that the first-stage unlocking piece 340 is unlocked with the locking assembly 330 in a rotating manner.

Optionally, as shown in fig. 1, the actuating mechanism 200 may be rotatably disposed on the base 100, and a rotation plane of the actuating mechanism 200 may be parallel to a rotation plane of the secondary unlocking piece 350, so that the movement of the actuating mechanism 200 in the opening process can be conveniently transmitted to the secondary unlocking piece 350, and the actuating mechanism 200 can drive the secondary unlocking piece 350 to be correspondingly reset through the resetting piece 370 by its own movement.

Alternatively, as shown in fig. 1 to 7, the secondary unlocking member 350 has an arc-shaped wall 351 corresponding to the reset member 370, and the reset member 370 has a driving wall 371 corresponding to the secondary unlocking member 350, in other words, the reset member 370 can act on the arc-shaped wall 351 through the driving wall 371 to drive the secondary unlocking member 350 to reset. In addition, in the process that the reset piece 370 drives the two-stage unlocking piece 350 to rotate reversely, the driving wall 371 is tangent to the arc-shaped wall 351, so that the smoothness and the reliability of resetting the two-stage unlocking piece 350 by the reset piece 370 can be effectively improved.

Optionally, as shown in fig. 1 to 7, the resetting member 370 and the magnetic flux tripping assembly 360 are respectively located at two opposite sides of the second-stage unlocking member 350, so that the resetting member 370 and the magnetic flux tripping assembly 360 can be respectively driven by different sides of the second-stage unlocking member 350, and thus, the resetting member 370 and the magnetic flux tripping assembly 360 can be isolated by the second-stage unlocking member 350, the rationality of the layout is improved, and possible interference between the resetting member 370 and the magnetic flux tripping assembly 360 is avoided.

Optionally, as shown in fig. 6, the two-stage unlocking member 350 has a first driving portion 353 and a second driving portion 354, the first driving portion 353 and the second driving portion 354 are respectively located at two opposite sides of a rotation center 352 of the two-stage unlocking member 350, wherein the first driving portion 353 is respectively driven by matching with the magnetic flux tripping assembly 360 and the resetting member 370, and the second driving portion 354 is driven by matching with the one-stage unlocking member 340, specifically:

when switching-off needs to be realized through the magnetic flux tripping assembly 360, as shown in fig. 2 and 3, the magnetic flux tripping assembly 360 may be energized, so that a push rod in the magnetic flux tripping assembly 360 extends out, and then the first driving portion 353 is driven to enable the second-stage unlocking member 350 to rotate clockwise, and in the process that the second-stage unlocking member 350 rotates clockwise, the second driving portion 354 drives the first-stage unlocking member 340 to rotate counterclockwise, so as to release the clamping between the first-stage unlocking member 340 and the locking assembly 330 (as shown in fig. 3). Next, as shown in fig. 4 and 5, the latch assembly 330 after releasing the clamping can drive the actuating mechanism 200 to start moving in a counterclockwise direction (opening direction), and in the counterclockwise direction (opening direction) of the actuating mechanism 200, the reset member 370 is driven to contact with the first driving portion 353, and the second-stage unlocking member 350 is driven by the first driving portion 353 to rotate counterclockwise so as to reset (return to the initial position), and when the second-stage unlocking member 350 resets, the first driving portion 353 drives the magnetic flux tripping assembly 360 to reset (return to the initial position), so as to prepare for next energization opening of the magnetic flux tripping assembly 360.

In some embodiments, as shown in fig. 1 to 7, the arc-shaped wall 351 provided on the secondary unlocking member 350 may be located on a side of the first driving portion 353 adjacent to the reset member 370.

Optionally, as shown in fig. 1 to 7, the first driving portion 353 has a bent portion that is driven by matching with the magnetic flux tripping assembly 360, so that the first driving portion 353 can be more attached to the push rod of the magnetic flux tripping assembly 360 through the bent portion, and the secondary unlocking member 350 can form stable and reliable driving through the first driving portion 353 and the magnetic flux tripping assembly 360. In some embodiments, the curved wall 351 may be located on a side of the bend near the drive wall 371.

Alternatively, as shown in fig. 1 to 7, the second driving part 354 has an arc-shaped wall that is engaged with the first-stage unlocking member 340, so that when the second-stage unlocking member 350 drives the first-stage unlocking member 340 to move through the second driving part 354, the first-stage unlocking member 340 can be smoothly and reliably driven by the arc-shaped wall of the second driving part 354.

Optionally, the trip device further includes a first elastic member (not shown), the first elastic member is connected with the second-stage unlocking member 350, so that an acting force can be provided to the second-stage unlocking member 350 through the first elastic member, the second-stage unlocking member 350 has a tendency of abutting against the magnetic flux tripping assembly 360, the second-stage unlocking member 350 and a push rod of the magnetic flux tripping assembly 360 can be in contact with each other all the time, and driving stability between the second-stage unlocking member 350 and the magnetic flux tripping assembly 360 is improved.

It is optional, trip gear still includes second elastic component (not shown), the second elastic component is connected with one-level unlocking piece 340, so, can provide the effort to one-level unlocking piece 340 through the second elastic component, make one-level unlocking piece 340 have the trend with second grade unlocking piece 350 butt, make and to keep in contact all the time between one-level unlocking piece 340 and the second grade unlocking piece 350, the drive stability has been improved, and simultaneously, after second grade unlocking piece 350 is reset by the drive of piece 370 that resets, also can make one-level unlocking piece 340 under the effect of second elastic component, reset smoothly, be convenient for carry out the joint with hasp subassembly 330 again.

Optionally, as shown in fig. 1 to 5, the latch assembly 330 includes a latch 320 and a trip device 310, the first-stage unlocking element 340 is connected to the latch 320 in a snap-fit manner, and the latch 320 is connected to the trip device 310 in a snap-fit manner, so that when the first-stage unlocking element 340 is connected to the latch 320 in a snap-fit manner, the latch 320 is restricted from moving, and since the latch 320 is connected to the trip device 310 in a snap-fit manner, the trip device 310 is also restricted from moving, so that the trip device 310 cannot drive the actuating mechanism 200 to open. Under the action of the magnetic flux tripping assembly 360, when the primary unlocking member 340 is unlocked from the locking member 320, the locking member 320 and the trip member 310 move relatively, so that the trip member 310 can move and open the brake corresponding to the driving mechanism 200. Specifically, the method comprises the following steps:

as shown in fig. 1 to 5, the first-stage unlocking element 340 is rotatably disposed on the base 100, the locking element 320 is rotatably disposed on the base 100, and the trip element 310 is drivingly connected to the actuating mechanism 200. When the actuating mechanism 200 is in the closed state, the trip device 310 tends to drive the locking device 320 to rotate counterclockwise to disengage from the locking device 320 for movement.

As shown in fig. 1, 2 and 5, when the first-stage unlocking element 340 is at the initial position, the clamping portion on the first-stage unlocking element 340 abuts against the clamping portion on the locking element 320 to limit the counterclockwise rotation of the locking element 320, and therefore, when the locking element 320 is clamped and limited by the first-stage unlocking element 340, the jump buckle element 310 is also clamped with the locking element 320, that is, the jump buckle element 310 cannot move relative to the locking element 320, and the whole formed by the locking element 320, the jump buckle element 310 and the actuating mechanism 200 can maintain a stable state. When the switching-off is needed, as shown in fig. 3, under the action of the magnetic flux tripping assembly 360, the first-stage unlocking piece 340 rotates counterclockwise, so that the clamping portion on the first-stage unlocking piece 340 is separated from the clamping portion of the locking piece 320, the locking piece 320 cannot continue to clamp the switching-off piece 310, at the moment, the switching-off piece 310 can move relatively, the stable state is destroyed, and the switching-off of the switching-off piece 310 driving action mechanism 200 is realized.

In another aspect of the embodiment of the present invention, as shown in fig. 8, an isolating switch 10 is provided, which includes a switch body 420, an actuating mechanism 200 and any one of the above-mentioned trip devices, wherein the actuating mechanism 200 is disposed on a base 100 of the trip device, and cooperates with the trip device through a latch assembly 330 on the base 100, and the actuating mechanism 200 is drivingly connected to the switch body 420. Thus, the action mechanism 200 can be driven by external force to drive the switch body 420 to switch on or switch off, and when necessary, the trip device drives the switch body 420 to switch off through the action mechanism 200.

Specifically, the method comprises the following steps: as shown in fig. 8, the base 100 may include a base 110 and an upper cover 120 that are fastened to each other to form an inner cavity, the latch assembly 330, the first-stage unlocking assembly 340, the second-stage unlocking assembly 350, the magnetic flux tripping assembly 360, and the actuating mechanism 200 may be all assembled in the inner cavity, the switch body 420 is disposed outside the base 110, and the actuating mechanism 200 is connected to the moving contact in the switch body 420, so that when the actuating mechanism 200 moves toward a closing direction, the moving contact can be synchronously driven to move toward a direction close to the stationary contact. When the actuating mechanism 200 is in the switching-on position, the moving contact is reliably contacted with the fixed contact. When the actuating mechanism 200 moves towards the opening direction, the moving contact can be synchronously driven to move towards the direction away from the fixed contact. When the actuating mechanism 200 is in the opening position, the moving contact is reliably disconnected from the fixed contact. In some embodiments, as shown in fig. 8, the isolating switch 10 further includes a handle 410, and the handle 410 extends into the inner cavity from the outside of the upper cover 120 and is drivingly connected to the actuating mechanism 200, so that when the manual switching on/off operation is performed, an external force acts on the handle 410, and the actuating mechanism 200 is driven by the handle 410 to perform the switching on/off operation.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (11)

1. The utility model provides a tripping device, its characterized in that, include base (100) and set up in hasp subassembly (330), one-level unlocking piece (340), second grade unlocking piece (350) and magnetic flux tripping assembly (360) on base (100), magnetic flux tripping assembly (360) pass through second grade unlocking piece (350) with one-level unlocking piece (340) drive is connected, one-level unlocking piece (340) with hasp subassembly (330) joint, magnetic flux tripping assembly (360) drive second grade unlocking piece (350) drive one-level unlocking piece (340) with hasp subassembly (330) release the joint, so that hasp subassembly (330) drive actuating mechanism (200) separating brake.

2. The trip unit of claim 1, further comprising a reset member (370), wherein the reset member (370) is in driving engagement with the secondary unlocking member (350) and the actuating mechanism (200), respectively, such that when the actuating mechanism (200) is tripped, the reset member (370) is driven by the actuating mechanism (200) to reset the magnetic flux trip assembly (360) via the secondary unlocking member (350).

3. The trip device according to claim 2, wherein the secondary unlocking member (350) is rotatably disposed on the base (100), the magnetic flux trip unit (360) drives the secondary unlocking member (350) to rotate in a forward direction to release the primary unlocking member (340) from the latch assembly (330), so that the reset member (370) drives the secondary unlocking member (350) to rotate in a reverse direction to drive the magnetic flux trip unit (360) to reset.

4. The trip unit of claim 3, wherein the secondary unlocking member (350) has an arcuate wall (351), the reset member (370) has a drive wall (371) opposite the arcuate wall (351), and the drive wall (371) is tangential to the arcuate wall (351) when the reset member (370) drives the secondary unlocking member (350) in reverse rotation.

5. The trip unit of claim 2, wherein said reset member (370) and said flux trip assembly (360) are located on opposite sides of said secondary unlocking member (350).

6. The trip unit of claim 3, wherein the secondary unlocking member (350) has a first drive portion (353) and a second drive portion (354) located on opposite sides of a center of rotation (352) of the secondary unlocking member (350), the first drive portion (353) being cooperatively driven with the magnetic flux trip assembly (360) and the reset member (370), respectively, and the second drive portion (354) being cooperatively driven with the primary unlocking member (340).

7. The trip unit of claim 6, wherein the first drive portion (353) has a bend that cooperatively drives with the magnetic flux trip assembly (360).

8. The trip unit of claim 1, further comprising a first resilient member coupled to the secondary unlocking member (350) for providing a force to the secondary unlocking member (350) such that the secondary unlocking member (350) has a tendency to abut the magnetic flux trip assembly (360).

9. The trip unit of claim 1, further comprising a second spring coupled to the primary unlocking member (340) for providing a force to the primary unlocking member (340) to cause the primary unlocking member (340) to have a tendency to abut the secondary unlocking member (350).

10. The trip device according to claim 1, wherein the latch assembly (330) comprises a latch member (320) and a trip member (310), the primary unlocking member (340) is connected with the latch member (320) in a clamping manner, and the latch member (320) is connected with the trip member (310) in a clamping manner, so that the trip member (310) drives the actuating mechanism (200) to open when the primary unlocking member (340) is connected with the latch member (320) in a releasing manner.

11. A disconnector (10) characterized by comprising a switch body (420), an actuating mechanism (200) and a trip unit according to any one of claims 1 to 10, wherein the actuating mechanism (200) is disposed at a base (100) of the trip unit, and a latch assembly (330) of the trip unit is drivingly connected to the actuating mechanism (200), and the actuating mechanism (200) is drivingly connected to the switch body (420).

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