CN216288265U - Power-assisted handle and plug-in circuit breaker - Google Patents

Abstract

Helping hand handle and plug-in circuit breaker, plug-in circuit breaker is including setting up contact system, connector and actuating mechanism in the circuit breaker casing, and the contact system passes through the connector to be connected with outside electrically conductive piece, and the connector is equipped with the clamping end of pressing from both sides tight external conductor, and actuating mechanism is connected with the connector and is used for locking or unblock the connector, is equipped with handle coupling mechanism outside the circuit breaker casing, handle coupling mechanism and actuating mechanism transmission cooperation, helping hand handle and plug-in circuit breaker can be dismantled and be connected, can control actuating mechanism through detachable helping hand handle, and the locking and the unblock of rethread actuating mechanism control connector not only make a helping hand handle can operate the circuit breaker of a plurality of differences, and the space that the circuit breaker occupy can also be reduced after the helping hand handle takes off.

Description

Power-assisted handle and plug-in circuit breaker

Technical Field

The utility model relates to the field of low-voltage electric appliances, in particular to a power-assisted handle and a plug-in circuit breaker.

Background

The circuit breaker is an important electrical element in the field of low-voltage electricity, and can connect and disconnect an external line, and automatically cut off the circuit when overcurrent occurs or short circuit occurs in the external line, so as to protect the external line. In the existing plug-in circuit breaker, the contact assembly is connected with an external line through a connector in the circuit breaker.

Because the connector has a large clamping force, the prior plug-in circuit breaker is labor-consuming when the assembly position is inserted or pulled out, and the connector and the external conductor are easy to wear, so the prior plug-in circuit breaker is also provided with a corresponding driving mechanism to open the connector when the connector is opened, and the clamping force to the external conductor is reduced. However, the drive mechanism of the conventional connector is generally interlocked with the mechanism inside the circuit breaker, and the state of connection between the connector and the external line cannot be manually controlled. Not only can influence the stability of internal mechanism, can reduce the life of internal mechanism moreover, if internal mechanism became invalid, then can influence the connector in succession, lead to the fault risk higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a power-assisted handle and a plug-in circuit breaker.

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

the utility model provides a helping hand handle, includes the wiring handle, the wiring handle includes handheld portion, sliding part and is located the connecting portion between handheld portion and the sliding part, connecting portion are used for can dismantling with plug-in circuit breaker's handle coupling mechanism and are connected, and the sliding part is used for with plug-in circuit breaker sliding fit, and handheld portion can drive the sliding part and rotate around connecting portion, drives sliding part and plug-in circuit breaker sliding fit simultaneously, when the sliding part rotates, pushes away connecting portion or draws to the slide bracket, drive handle coupling mechanism.

Preferably, the connecting portion is provided with a second catch structure for connecting with a handle connecting mechanism of the plug-in circuit breaker.

Preferably, the second blocking structure is a hook structure, a hole structure, a groove structure, a shaft structure, a buckle structure or a clamping groove structure.

Preferably, the sliding part is provided with a roller.

Preferably, the power-assisted handle further comprises a lifting handle, the lifting handle comprises a pivot portion, a lifting portion and a lifting portion, the lifting portion is connected with a connecting portion of the wiring handle, the pivot portion is provided with a first connecting structure used for being detachably connected with the plug-in mounting position, and the lifting portion can be operated to drive the lifting portion to rotate around the pivot portion, so that the lifting portion drives the plug-in circuit breaker to move towards a direction far away from the plug-in mounting position.

Preferably, the connecting portion include with the connecting axle that wiring handle connecting piece can dismantle the connection, go up and down the portion with the connecting axle is connected.

Preferably, the lifting handle comprises two lifting parts which are oppositely arranged, a connecting hole is formed in the middle of each lifting part, two ends of the connecting shaft are connected between the two lifting parts through the connecting holes, and the wiring handle is arranged between the two lifting parts; two ends of the lifting part are respectively connected with one ends of the two lifting parts, and the other ends of the two lifting parts are respectively connected with the pivoting part in a rotating mode.

Preferably, the size of the connecting hole is larger than the outer diameter of the connecting shaft, and the connecting shaft can move in the connecting hole along the length direction of the connecting hole.

Preferably, the pivot portion includes two curb plates and the bottom plate that sets up relatively, is equipped with the pivotal axis between two curb plates one end, is equipped with the bottom plate between the other end, and the other end of two portions of going up and down rotates with two curb plates respectively to be connected, is equipped with the first connection structure who is connected with the cartridge position on the bottom plate.

Preferably, the first connecting structure is a positioning pin.

Preferably, the wiring handle includes two wiring handle curb plates that relative interval set up, and two wiring handle curb plate middle parts are as connecting portion, be equipped with the shaft hole on the connecting portion, the connecting axle passes the shaft hole and is connected with connecting portion, and the one end of two wiring handle curb plates is connected with the both ends of handheld portion respectively, and the other end of two wiring handle curb plates is as the sliding part.

A plug-in circuit breaker comprises a contact system, a connector and a driving mechanism, wherein the contact system, the connector and the driving mechanism are arranged in a circuit breaker shell, the contact system is connected with an external conductive piece through the connector, the connector is provided with a clamping end for clamping a conductive body, the driving mechanism is connected with the connector and used for locking or unlocking the connector, a handle connecting mechanism is arranged outside the circuit breaker shell, and the handle connecting mechanism is in transmission fit with the driving mechanism.

Preferably, the handle connecting mechanism comprises a first blocking structure used for being connected with the power assisting handle.

Preferably, the first blocking structure is a hook structure, a hole structure, a groove structure, a shaft structure, a buckle structure or a clamping groove structure.

Preferably, the handle connecting mechanism comprises a wiring handle connecting piece, one end of the wiring handle connecting piece is hinged to the driving mechanism, and the other end of the wiring handle connecting piece is detachably connected with the power-assisted handle.

Preferably, an accommodating groove is formed in an operation panel of the circuit breaker shell, one end of the connecting piece of the wiring handle is located in the accommodating groove and hinged to the driving mechanism, and the other end of the connecting piece of the wiring handle rotates between the inner side and the outer side of the accommodating groove.

Preferably, a cover plate of the connecting mechanism for covering the receiving groove is included.

Preferably, the driving mechanism comprises a rotating mechanism and a transmission mechanism moving linearly, the rotating mechanism is rotatably mounted on the connector, one end of the transmission mechanism is matched with the rotating mechanism, and the other end of the transmission mechanism is provided with the handle connecting mechanism.

Preferably, the driving mechanism further comprises a linkage mechanism located between the rotating mechanism and the transmission mechanism, the rotating mechanisms are respectively rotatably mounted on the connectors and respectively connected with the linkage mechanism, the transmission mechanism drives the rotating mechanisms to rotate through the linkage mechanism, when the transmission mechanism linearly moves to push the linkage mechanism, the linkage mechanism compresses the return spring and drives the rotating mechanism to rotate towards one side, and when the transmission mechanism is far away from the linkage mechanism, the return spring drives the linkage mechanism to drive the rotating mechanism to rotate towards the other side for resetting.

Preferably, a power-assisted handle detachably connected with the handle connecting mechanism is further installed.

Preferably, the power-assisted handle comprises a wiring handle, the wiring handle is detachably connected with the handle connecting mechanism, and the wiring handle drives the driving mechanism to drive the connector to be locked or unlocked; or, the helping hand handle includes lifting handle, lifting handle can dismantle with handle coupling mechanism and be connected, and can dismantle with plug-in circuit breaker's cartridge position and be connected, and lifting handle passes through handle coupling mechanism and drives the relative cartridge position removal of plug-in circuit breaker.

Preferably, the boosting handle is the boosting handle provided by the utility model.

According to the plug-in circuit breaker, the handle connecting mechanism detachably connected with the power-assisted handle is arranged outside the circuit breaker shell, the handle connecting mechanism is connected with the driving mechanism, the driving mechanism can be controlled through the detachable power-assisted handle, and the driving mechanism is used for controlling the locking and unlocking of the connector, so that not only can one power-assisted handle operate a plurality of different circuit breakers, but also the space occupied by the circuit breakers can be reduced after the power-assisted handle is taken down.

The power-assisted handle comprises a wiring handle, the wiring handle drives the driving mechanism to drive the connector to be locked or unlocked through the handle connecting mechanism, so that one power-assisted handle can operate a plurality of different circuit breakers, and the space occupied by the circuit breakers can be reduced after the power-assisted handle is taken down.

In addition, the power-assisted handle comprises a wiring handle and a lifting handle which are integrally arranged, the wiring handle drives a driving mechanism to drive the connector to be locked or unlocked through a handle connecting mechanism, and the lifting handle drives the plug-in circuit breaker to move relative to the plug-in position through the handle connecting mechanism to pull the plug-in circuit breaker out of the plug-in position.

Drawings

Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a wire connecting handle and a lifting handle according to an embodiment of the present invention;

FIG. 3 is an exploded view of a wire handle and lift handle according to an embodiment of the present invention;

FIG. 4 is a connector according to an embodiment of the present invention in a clamped state;

fig. 5 is a schematic structural diagram of the circuit breaker housing hidden in fig. 4 according to the embodiment of the utility model;

FIG. 6 is a connector according to an embodiment of the present invention in an open position;

fig. 7 is a schematic structural diagram of the circuit breaker housing of fig. 6 after being hidden according to the embodiment of the utility model;

fig. 8 is a position of the circuit breaker after movement according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of the circuit breaker housing of fig. 8 after being hidden according to the embodiment of the utility model;

figure 10 is a connector in a clamped state after movement of a circuit breaker according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a connector according to an embodiment of the present invention;

FIG. 12 is an exploded view of a connector according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a camshaft according to an embodiment of the present invention.

Detailed Description

The following examples are given in conjunction with fig. 1 to 13 to further illustrate the embodiments of the present invention. The boost handle and the plug-in circuit breaker of the present invention are not limited to the description of the following embodiments.

As shown in fig. 1-3, the plug-in circuit breaker of the present invention comprises an operating mechanism, a contact system, a connector 4 and a driving mechanism arranged in a circuit breaker housing 1, wherein the contact system is connected with an external conductive member through the connector 4, the connector 4 is provided with a clamping end for clamping a conductive body, the driving mechanism is connected with the connector 4 for locking or unlocking the connector 4, a handle connecting mechanism for detachably connecting with a power-assisted handle is arranged outside the circuit breaker housing 1, the handle connecting mechanism is in transmission fit with the driving mechanism, and after the power-assisted handle is assembled and connected with the handle connecting mechanism, the power-assisted handle is connected with the driving mechanism in the circuit breaker housing 1 through the handle connecting mechanism, and the power-assisted handle drives the driving mechanism to drive the connector 4 to be locked or unlocked.

The plug-in circuit breaker is provided with the handle connecting mechanism detachably connected with the power-assisted handle, the drive mechanism is controlled by the detachable power-assisted handle, and the locking and unlocking of the connector are controlled by the drive mechanism, so that not only can one power-assisted handle operate a plurality of different circuit breakers, but also the space occupied by the circuit breakers can be reduced after the power-assisted handle is taken down.

Further, the power-assisted handle comprises a wiring handle 10 and/or a lifting handle 20, the wiring handle 10 is detachably connected with the handle connecting mechanism, and the wiring handle 10 drives the driving mechanism to drive the connector 4 to be locked or unlocked; the plug-in circuit breaker cartridge is in the cartridge position, lifting handle 20 can dismantle with handle coupling mechanism and be connected, and can dismantle with the cartridge position of plug-in circuit breaker and be connected, and lifting handle 20 passes through handle coupling mechanism and drives the relative cartridge position of plug-in circuit breaker and remove, extracts plug-in circuit breaker from the cartridge position. The plugging position of this embodiment is a plugging frame of the cabinet 5, which is a specific implementation manner of the plugging position, and the plugging position may also be a wall surface, a distribution box, or the like. Wherein, the handle connecting structure can be one or more.

As shown in fig. 1-3, the plug-in circuit breaker of this embodiment includes an operating mechanism, a contact system, a connector 4, and a driving mechanism, which are disposed in a circuit breaker housing, where the contact system includes a moving contact and a stationary contact, the moving contact is connected to the operating mechanism, the operating mechanism drives the moving contact to swing and cooperate with the stationary contact to implement switching on and off of the circuit breaker, the moving contact and the stationary contact of the contact system are respectively connected to an external conductive member through the connector 4, the connector 4 is provided with a clamping end for clamping an external conductive body, and the driving mechanism is connected to the connector 4 for locking or unlocking the connector 4.

One improvement point of the utility model is that a handle connecting mechanism is arranged outside the breaker shell 1, and the handle connecting mechanism is in transmission fit with the driving mechanism and is used for being detachably connected with the power-assisted handle, so that the power-assisted handle is convenient to install. Preferably, handle coupling mechanism is including being used for the first card fender structure of being connected with the helping hand handle, be equipped with on the helping hand handle and block the structure with first card fender structure can dismantle the second of being connected and block the structure, first card fender structure and second card fender structure buckle are connected or spacing cooperation of blockking, spacing cooperation of blockking indicates that first card fender structure and second card fender structure are spacing to be blockked in the application of force direction of helping hand handle, drive plug-in circuit breaker's actuating mechanism, and also can not spacing block in non-application of force direction. According to the embodiment shown in fig. 1, the handle connecting mechanism comprises a connecting wire handle connecting piece 30, a hook structure is arranged on the connecting wire handle connecting piece 30 and is used for being connected with a connecting shaft 111 on the power-assisted handle, the power-assisted handle can be very conveniently disassembled and assembled through the connecting shaft 111 on the power-assisted handle and the handle connecting mechanism adopting the hook structure without any installation tool, the hook structure is a first blocking structure, the connecting shaft 111 is a second blocking structure, and the two structures form a limiting blocking fit. It is understood that the first blocking structure may also take other shapes, for example, the connection handle connecting member 30 takes a hole structure or a groove structure or a shaft structure, and the first blocking structure takes a hole structure, so that the connection shaft 111 of the assist handle as the second blocking structure can be connected through the hole structure; first card keeps off structure and adopts groove structure then helping hand handle's connecting axle 111 to stretch into groove structure, and first card keeps off structure and adopts shaft structure for example protruding axle arch that sets up on wiring handle connecting piece 30, then second card keeps off the structure correspondence and can adopt the couple structure, or hole structure or groove structure etc.. As another embodiment, the first blocking structure may also be a slot structure or a buckle structure disposed on the handle connecting mechanism, and the corresponding second blocking structure is a buckle structure or a slot structure disposed on the power-assisted handle, and the buckle structure is inserted into the slot structure and is in a buckle connection. In addition, as another embodiment, the power-assisted handle and the handle connecting mechanism of the plug-in circuit breaker can be connected through screws, which also belongs to the protection scope of the application, but the screw connection needs an installation tool, and the use is convenient without a crotch structure.

As shown in fig. 1, an embodiment of the handle connection mechanism includes a connection handle connection member 30, the connection handle connection member 30 is a sheet structure, an accommodating groove is formed on an operation panel at one end of the circuit breaker housing 1, one end of the connection handle connection member 30 is located in the accommodating groove and hinged to the driving mechanism, and the other end rotates between the inner side and the outer side of the accommodating groove. The other end of the connection handle connecting piece 30 can be rotatably arranged in the accommodating groove and recovered or rotatably extended out of the accommodating groove for being connected with the power-assisted handle. Preferably, the operating panel at one end of the plug-in circuit breaker is further provided with a connecting mechanism cover plate for covering the accommodating groove. The connecting mechanism cover plate is pivotally mounted, and when the power-assisted handle is not connected, the wiring handle connecting piece 30 is rotatably arranged in the accommodating groove and covers the connecting mechanism cover plate; referring to fig. 3, when the power-assisted handle needs to be connected, the cover plate of the connecting mechanism is opened, and the hook structure is rotated out to be connected with the power-assisted handle. It should be noted that the connection handle connecting piece 30 of the present embodiment is hinged with the driving mechanism, and as another deteriorated embodiment, the connection handle connecting piece 30 may be fixedly connected with the driving mechanism, or may be integrally formed with the driving mechanism, for example, integrally formed with the transmission mechanism 31 of the driving mechanism.

Preferably, as shown in fig. 1-2, the power-assisted handle includes a wiring handle 10 and a lifting handle 20, the wiring handle 10 is disposed on the lifting handle 20, the two are integrally disposed, and connected to the plug-in circuit breaker through a handle connection mechanism, and the lifting handle 20 is detachably connected to the cabinet 5; drive actuating mechanism drive connector 4 through wiring handle 10 and lock or unblock, when extracting the circuit breaker from the rack through lifting handle 20, not only can conveniently take out the circuit breaker from rack 5, when the connector trouble, if wiring handle 10 can't control connector 4 moreover, can directly extract the circuit breaker through lifting handle 20, effectively ensure the security. Of course, the boosting handle may be provided with only the wiring handle 10 or the lifting handle 20 as needed.

As shown in fig. 2-3, the connection handle 10 of the present embodiment includes a handheld portion 12, a sliding portion 13 and a connecting portion 11 located between the handheld portion 12 and the sliding portion 13, the connecting portion 11 is detachably connected to a handle connecting mechanism of the plug-in circuit breaker, the sliding portion 13 is in sliding fit with the plug-in circuit breaker, the handheld portion 12 can drive the sliding portion 13 to rotate around the connecting portion 11, and simultaneously drive the sliding portion 13 and the plug-in circuit breaker to slide, when the sliding portion 13 rotates, the connecting portion 11 is pushed away or pulled toward the sliding platform 6, the handle connecting mechanism is driven, and the driving mechanism is driven to lock or unlock the connector 4. Be equipped with slide bracket 6 on the operating panel of 1 one end of circuit breaker casing, connecting portion 11 is connected with handle coupling mechanism and can dismantle the connection, sliding part 13 and slide bracket 6 sliding fit, handheld portion 12 can drive sliding part 13 and rotate around connecting portion 11, drive sliding part 13 and slide bracket 6 sliding fit simultaneously, when sliding part 13 rotates and slides between connecting portion 11 and the slide bracket 6, push away from slide bracket 6 with connecting portion 11, when sliding part 13 rotates and removes and keeps away from between handheld portion 12 and the slide bracket 6, connecting portion 11 is close to slide bracket 6, when connecting portion 11 is close to and keeps away from slide bracket 6 through actuating mechanism locking or unblock connector 4.

Preferably, the connecting portion 11 is provided with a second catch structure for connecting with a handle connecting mechanism of the plug-in circuit breaker. The second blocking structure is connected with the first blocking structure of the handle connecting mechanism in a buckling mode or in a limiting blocking mode, and the handle connecting mechanism does not need any installation tool. Preferably, the second blocking structure is a hook structure, a hole structure, a groove structure, a shaft structure, a buckle structure or a clamping groove structure.

The connecting portion 11 of this embodiment includes the connecting axle 111 of being connected with wiring handle connecting piece 30 is dismantled, and connecting portion 11 makes connecting portion 11 lock or unblock in the removal process that is close to and keeps away from slide bracket 6 as the center of rotation of wiring handle 10, because connecting portion 11 is rectilinear movement, wiring handle connecting piece 30 is located the straight line of connecting portion 11 motion can, not only can reduce actuating mechanism's volume, and connecting portion 11 also is more reliable with the cooperation of wiring handle connecting piece 30.

Specifically, wiring handle 10 includes two wiring handle curb plates that relative interval set up, and two wiring handle curb plate middle parts are as connecting portion 11, be equipped with on connecting portion 11 with wiring handle connecting piece 30 complex connecting axle 111, be equipped with shaft hole 15 on the connecting portion 11, connecting axle 111 passes shaft hole 15 and is connected with connecting portion 11, and connecting axle 111 passes the wiring handle connecting piece 30 of couple structure and just can realize connecting, takes connecting axle 111 out and just can realize dismantling, has simple structure and the characteristics of convenient operation. One end of each of the two side plates of the connection handle is connected to the two ends of the hand-held portion 12, respectively, to form a door-shaped structure, and the other end of each of the two side plates of the connection handle is used as a sliding portion 13. Further, V style of calligraphy structure is buckled into to wiring handle curb plate, including buckling the first curb plate and the second curb plate of connecting, handheld portion 12 is connected with two handheld portions 12, and connecting portion 11 and sliding part 13 set up on the second curb plate to in operation and hard. Furthermore, a corresponding connecting fixing rod can be arranged between the other ends of the two wiring handle side plates so as to reinforce. Further, the sliding part 13 is provided with a roller 14 engaged with the sliding platform 6, the roller 14 is mounted on a roller hole 16 of the sliding part through a roller shaft, and the roller 14 is engaged with the sliding platform 6 in a rolling manner to reduce friction. Two sets of rollers 14 are provided in this embodiment, and the number of rollers 14 can be adjusted. Of course, the roller 14 may not be provided, and the sliding portion 13 may be slidably engaged with the sliding platform 6 through an arc surface, which all fall within the protection scope of the present invention. Of course, the connection portion 11 may be connected to the connection handle connector 30 by other means, for example, an integrally formed boss shaft is provided on the connection portion 11 as the connection shaft 111, which falls within the protection scope of the present invention.

As shown in fig. 2 to 3, the lifting handle 20 of the present embodiment includes a pivot portion 21, a lifting portion 22 and a lifting portion 23, the lifting portion 23 is connected to the handle connection mechanism and detachably connected to the handle connection mechanism, the pivot portion 21 is provided with a first connection structure for detachably connecting to the plug-in mounting position, the pivot portion 21 is detachably connected to the cabinet 5, and the lifting portion 22 is operated to drive the lifting portion 23 to rotate around the pivot portion 21, so that the lifting portion 23 drives the plug-in circuit breaker to move in a direction away from the plug-in mounting position, thereby assisting in pulling the plug-in circuit breaker out of the cabinet. It is to be understood that although the lifting handle 20 of the present embodiment is rotated with its center of rotation at one end, the lifting handle 20 may have its center of rotation disposed at the middle. In addition, the lifting handle 20 can also move linearly up and down, and the utility model also belongs to the protection scope of the utility model. When helping hand handle includes wiring handle 10 and lifting handle 20 simultaneously, lifting portion 23 and the connecting portion 11 of wiring handle 10 of lifting handle 20 are connected, are connected with handle coupling mechanism through connecting portion 11 and the connection of dismantling of wiring handle 10, in this embodiment lifting portion 23 with connecting axle 111 is connected.

Further, lifting handle 20 includes two lifters 23 that set up relatively, is equipped with the connecting axle 111 of being connected with handle coupling mechanism between two lifters 23, and connecting portion 11 of wiring handle 10 installs on connecting axle 111, and both integrative settings are connected with handle coupling mechanism through connecting axle 111, once only assembles the position. Specifically, the lifting handle 20 includes two lifting portions 23 that are arranged oppositely, the middle portions of the two lifting portions 23 are provided with elongated connecting holes 231, the two ends of the connecting shaft 111 are connected between the two lifting portions 23 through the connecting holes 231, the wiring handle 10 is arranged between the two lifting portions 23, the two ends of the lifting portion 22 are respectively connected with one ends of the two lifting portions 23, and the other ends of the two lifting portions 23 are respectively connected with the pivot portion 21 in a rotating manner. The pivoting part 21 comprises two side plates 211 and a bottom plate 212 which are oppositely arranged, a pivoting shaft 24 is arranged between one ends of the two side plates 211, the bottom plate 212 is arranged between the other ends of the two side plates 211, the other ends of the two lifting parts 23 are respectively in rotating connection with the two side plates 211 through the pivoting shaft 24, and a first connecting structure connected with the cabinet 5 is arranged on the bottom plate 212.

Further, the lifting portion 23 is provided with a connecting hole 231 matched with the connecting shaft 111, the size of the connecting hole 231 is larger than the outer diameter of the connecting shaft 111, the connecting shaft 111 can move in the connecting hole 231 along the length direction of the connecting hole 231, and the lifting portion 23 can drive the connecting hole 231 to push the connecting shaft 111 to move. The connecting shaft 111 moves in the connecting hole 231, so that the wiring handle 10 can be driven to adjust the position, the wiring handle 10 can be suitable for circuit breakers of different sizes, the application range is wider, and the popularization and the use are convenient; and when the handheld portion 12 of the connection handle 10 drives the sliding portion 13 to rotate around the connecting portion 11, the sliding portion 13 is simultaneously driven to be in sliding fit with the sliding platform 6 of the plug-in circuit breaker, so that the connecting portion 11 moves along the length direction of the connecting hole 231 in the connecting hole 231 along with the connecting shaft 111, and the driving mechanism is driven to unlock or lock the connector 4. Of course, the inner diameter of the connection hole 231 may be matched with the connection shaft 111, and the connection shaft 111 may be rotatably connected to the elevating part 23 through the connection hole 231.

Specifically, one ends of the two lifting portions 23 are connected with the lifting portion 22 through the upper mounting hole 233, the other ends of the two lifting portions 23 are respectively connected with the pivot shaft 24 through the lower mounting hole 234, the pivot shaft 24 is rotatably connected with the pivot portion 21, the wiring handle 10 is arranged between the two lifting portions 23, the circuit breaker is respectively provided with a wiring handle connecting piece 30 corresponding to the outer sides of the two lifting portions 23, and the two ends of the connecting shaft 111 are respectively matched with the wiring handle connecting piece 30 after passing through the lifting portions 23. Two side plates 211 of the pivoting part 21 are respectively provided with a pivoting hole 240 connected with the pivoting shaft 24, the bottom plate 212 is provided with a pin hole 217 connected with a positioning pin 213, and the positioning pin 213 is detachably connected with the cabinet 5.

This embodiment is through setting up wiring handle 10 in lifting handle 20's inboard, not only can guarantee that lifting handle 20 has sufficient intensity, effectively utilizes the inside space of lifting handle 20 to hold wiring handle 10 again, compact structure and reliable, has small characteristics. It is understood that the connection handle 10 may be provided at other positions of the elevation handle 20, and the connection handle connector 30 is also provided inside the two elevation parts 23 to be engaged with the connection shaft 111.

The lifting handle 20 of the embodiment is detachably connected with the cabinet 5, so that the lifting handle 20 and the wiring handle 10 can be used on a plurality of different circuit breakers as an integral device. Preferably, the first connecting structure is a positioning pin 213, a positioning hole 51 matched with the positioning pin 213 is formed in the cabinet 5, the lifting handle 20 is connected with the cabinet 5 through the positioning pin 213, the connection mode between the lifting handle 20 and the cabinet 5 is very simple, and when the lifting handle 20 is operated, the acting force acting on the bottom plate 212 of the pivot part 21 is towards the positioning hole 51, and is the acting force pressing the lifting handle 20 on the cabinet 5, so that the positioning pin 213 is only required to be inserted into the positioning hole 51, and the mounting and dismounting are convenient without an additional tool. It is understood that the handle positioning hole may be provided on the pivot portion 21, and the positioning pin may be provided on the cabinet 5 to achieve the same matching, all falling within the scope of the present invention. Only the frame of the cabinet 5 is shown in the figure, and it is obvious that the cabinet 5 may have other structures.

Preferably, the positioning hole 51 includes an insertion portion 52 for avoiding the positioning pin 213, and a limit portion 53 communicating with one side of the insertion portion 52, an inner diameter of the limit portion 53 is smaller than an inner diameter of the insertion portion 52, two ends of the positioning pin 213 are respectively provided with a mounting head 214 and a guide head 216, the mounting head 214 is connected with the base plate 212, the guide head 216 is circular to pass through the insertion portion 52, a limit step 215 is provided between the mounting head 214 and the guide head 216, and the positioning pin 213 can pass through the insertion portion 52 first and then slide into the limit portion 53, so that the limit step 215 abuts against the other side for limiting. The present embodiment is provided with two sets of positioning holes 51 and positioning pins 213, and the limiting portions 53 of the two sets of positioning holes 51 are located on the same side of the insertion portion 52. It is understood that other means for removably connecting the cabinet 5 to the lifting handle 20 may be used, and is not particularly limited herein.

The action process of the power-assisted handle of the embodiment is as follows:

the positioning pin 213 of the lifting handle 20 is mounted to the cabinet 5, and the connection handle connector 30 of the circuit breaker is hung on the connection shaft 111 of the lifting handle 20, the mounting is completed without any tool, and then the operation is started.

Fig. 4-5 illustrate the connector locked in a position gripping the external conductor, with the connection handle 10 rotated clockwise to the position shown in fig. 6-7, and the connection handle 10 being actuated by the actuator to unlock the connector and release the external conductor for further movement of the circuit breaker away from the external conductor.

The lifting handle 20 in fig. 6-7 is rotated clockwise to the position shown in fig. 8-9, the lifting handle 20 drives the circuit breaker to move upwards through the wiring handle 10, the positions of the cabinet 5 and the external conductor are not moved, so that the circuit breaker can leave the external conductor, and then the wiring handle 10 is rotated counterclockwise to the position shown in fig. 10, so that the connector is reset.

It should be noted that, obviously, the boost handle may be only provided with the wiring handle 10 or the lifting handle 20, which falls within the protection scope of the present invention.

As shown in fig. 5, 7 and 9, in an embodiment of the driving mechanism, the driving mechanism includes a rotating mechanism 32 and a transmission mechanism 31, the rotating mechanism 32 is rotatably installed on the connector 4, the transmission mechanism 31 is linearly arranged in the circuit breaker housing 1, one end of the transmission mechanism 31 is matched with the rotating mechanism 32, the other end of the transmission mechanism 31 is provided with the handle connection mechanism, and the transmission mechanism 31 reciprocally and linearly drives the rotating mechanism 32 to rotate to lock or unlock the connector 4. The connection handle connecting piece 30 of the handle connecting mechanism is hinged with one end of the transmission mechanism 31, so that the connection handle connecting piece can be conveniently rotated and placed in the accommodating groove, and as another embodiment, the connection handle connecting piece 30 can also be fixedly connected with the transmission mechanism 31 or integrally formed.

Preferably, the driving mechanism further includes a linkage mechanism 33, the linkage mechanism 33 is disposed between the rotating mechanism 32 and the transmission mechanism 31, the linkage mechanism 33 is slidably disposed in the circuit breaker housing 1, the plurality of connectors 4 are synchronously driven to be unlocked or locked through the linkage mechanism 33, and the plurality of rotating mechanisms 32 are respectively rotatably mounted on the plurality of connectors 4 and are respectively connected to the linkage mechanism 33; the transmission mechanism 31 drives the plurality of rotation mechanisms 32 to rotate through the linkage mechanism 33. When the circuit breaker is a two-pole or three-pole or more-pole circuit breaker, the connectors 4 of the contact systems at all levels are preferably synchronously driven through the linkage mechanism 33; when the circuit breaker is a single-pole circuit breaker, it is obvious that the link mechanism 33 may not be provided.

Preferably, the driving mechanism includes a rotating mechanism 32, a transmission mechanism 31, and a linkage mechanism 33 disposed between the rotating mechanism 32 and the transmission mechanism 31 and connected to a return spring 34, the connection handle connecting member 30 is disposed on the transmission mechanism 31, when the transmission mechanism 31 moves linearly to push the linkage mechanism 33, the linkage mechanism 33 compresses the return spring 34 and drives the rotating mechanism 32 to rotate to one side, and when the transmission mechanism 31 is far away from the linkage mechanism 33, the return spring 34 drives the linkage mechanism 33 to drive the rotating mechanism 32 to rotate to the other side for resetting. The transmission mechanism 31 is in a rod-shaped structure, the rotating mechanism 32 is a rocker arm, one end of the rocker arm is rotatably mounted on the connector 4, and the other end of the rocker arm is connected with the linkage mechanism 33 through a rocker arm driving shaft.

In this embodiment, two linear movement transmission mechanisms 31 are arranged on two sides of the circuit breaker housing 1, a handle hole for extending a circuit breaker handle is formed in the middle of an operating panel of the circuit breaker housing 1, sliding platforms 6 are arranged on two sides of the handle hole, each sliding platform 6 is a plane or an inclined plane or a sliding groove on the operating panel, and sliding portions 13 on two sides of the wiring handle 10 are arranged in a sliding mode and matched with the sliding platforms 6 on two sides of the handle hole.

A connector 4 of the type shown in fig. 11-13, said connector 4 being provided with a clamping end for clamping an external electrical conductor. The connector 4 of this embodiment includes two sets of conductive structures 41 that are arranged oppositely, the two sets of conductive structures 41 can rotate around their respective middle portions, and the rotation centers of the two sets of conductive structures 41 can approach and separate from each other, two clamping ends are formed at two ends of the two sets of conductive structures 41, one end of the two sets of conductive structures 41 is used for clamping an internal conductor, the other end of the two sets of conductive structures 41 is used for clamping an external conductor, in the figure, the internal conductor is an external conductor 48, the external conductor is an internal conductor 47, the external conductor 48 is connected with a contact system in the plug-in circuit breaker, and the internal conductor 47 is connected with an external circuit;

the outer sides of the two groups of conductive structures 41 are respectively provided with an elastic clamping mechanism for driving the two groups of conductive structures 41 to approach each other, the elastic clamping mechanism comprises an elastic sheet 42, an opening mechanism controlled by the driving mechanism of the embodiment is arranged between the two groups of conductive structures 41, and the opening mechanism can be used for ejecting and avoiding the two groups of conductive structures 41 under the control of the driving mechanism;

the opening mechanism comprises a cam shaft 43 arranged between the two groups of conductive structures 41 and operating shafts 44 respectively arranged at two ends of the axis of the cam shaft 43, the operating shafts 44 are connected with the rotating mechanism 32, the cam shaft 43 comprises a long diameter part 46 and a short diameter part 45 which are radially arranged, the rotating mechanism 32 drives the cam shaft 43 to rotate, when the long diameter part 46 corresponds to the two groups of conductive structures 41, the two groups of conductive structures 41 can be respectively pushed open to unlock the connectors 4, the clamping of the external conductive parts and the external conductive bodies 48 is released, the short diameter part 45 is used for avoiding the two groups of conductive structures 41, when the rotating mechanism 32 drives the cam shaft 43 to rotate, the short diameter part 45 corresponds to the two groups of conductive structures 41, the elastic clamping mechanism drives the two groups of conductive structures 41 to be close to the locking connectors 4, and drives the two groups of conductive structures 41 to clamp the external conductive parts and the external conductive bodies 48. As another embodiment of the connector 4, the cam shaft 43 may be disposed outside the conductive structure 41 and push the conductive structure 41 inward to clamp the inner conductor 47, or the cam shaft 43 may be disposed inside the conductive structure 41 and push one end of the conductive structure 41 to drive the conductive structure 41 to clamp the inner conductor 47 by the lever principle. Alternatively, the driving mechanism may drive only the conductive structure 41 to clamp the inner conductor 47, which corresponds to opening the conductive structure 41 when the conductive structure 41 is not driven to clamp.

As another embodiment of the connector 4, the connector 4 includes two sets of conductive structures, one set of conductive structures is fixedly installed, the other set of conductive structures is rotatably installed through an elastic member, a clamping end for clamping the external conductor is formed only between one ends of the two sets of conductive structures, the elastic member drives the other set of conductive structures to rotate to one side, so that the clamping end clamps the external conductor, and the connector 4 is locked; the driving mechanism can drive the other group of conductive structures to rotate towards the other side, so that the clamping end releases the clamping of the external conductive piece, and the connector 4 is unlocked. The fixed group of conducting structures can be a straight-line-shaped fixed conducting plate which can be electrically connected with a contact system of the circuit breaker, the other group of conducting structures which are rotatably installed can adopt a conducting structure 41 similar to that in fig. 11, an opening mechanism connected with a driving mechanism can be arranged between the other ends of the two groups of conducting structures, which are far away from the clamping end for clamping the external conductor, and the opening mechanism can adopt a camshaft structure.

As other embodiments of the connector 4, the connector 4 may further include a fixed conductive plate fixedly mounted, and an elastic plate fixedly mounted, a clamping end for clamping the external conductor is formed between the elastic plate and the fixed conductive plate, and the expanding mechanism capable of driving the elastic plate to deform is connected to the driving mechanism. All falling within the scope of the present invention.

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

Claims (21)

1. A power-assisted handle is characterized in that: including wiring handle (10), wiring handle (10) include handheld portion (12), sliding part (13) and are located connecting portion (11) between handheld portion (12) and sliding part (13), connecting portion (11) are used for dismantling with plug-in circuit breaker's handle coupling mechanism and are connected, sliding part (13) are used for with plug-in circuit breaker sliding fit, handheld portion (12) can drive sliding part (13) and rotate around connecting portion (11), drive sliding part (13) and plug-in circuit breaker sliding fit simultaneously, when sliding part (13) rotate, push away connecting portion (11) or draw to sliding platform (6), drive handle coupling mechanism.

2. The booster handle of claim 1, wherein: the connecting part (11) is provided with a second blocking structure used for being connected with a handle connecting mechanism of the plug-in circuit breaker.

3. The booster handle of claim 2 wherein: the second blocking structure is a hook structure, a hole structure, a groove structure, a shaft structure, a buckle structure or a clamping groove structure.

4. The booster handle of claim 1, wherein: the sliding part (13) is provided with a roller (14).

5. A booster handle according to any of claims 1 to 4, characterised in that: the power-assisted handle further comprises a lifting handle (20), the lifting handle (20) comprises a pivot portion (21), a lifting portion (22) and a lifting portion (23), the lifting portion (23) is connected with a connecting portion (11) of the wiring handle (10), the pivot portion (21) is provided with a first connecting structure used for being detachably connected with the plug-in mounting position, the lifting portion (23) can be operated to drive the lifting portion (23) to rotate around the pivot portion (21), and the lifting portion (23) drives the plug-in type circuit breaker to move in the direction far away from the plug-in mounting position.

6. The booster handle of claim 5 wherein: connecting portion (11) include can dismantle connecting axle (111) of being connected with wiring handle connecting piece (30), lift portion (23) with connecting axle (111) are connected.

7. The booster handle of claim 6 wherein: the lifting handle (20) comprises two lifting parts (23) which are oppositely arranged, a connecting hole (231) is formed in the middle of each lifting part (23), two ends of the connecting shaft (111) are connected between the two lifting parts (23) through the connecting holes (231), and the wiring handle (10) is arranged between the two lifting parts (23); two ends of the lifting part (22) are respectively connected with one ends of the two lifting parts (23), and the other ends of the two lifting parts (23) are respectively connected with the pivoting part (21) in a rotating way.

8. The booster handle of claim 7 wherein: the size of the connecting hole (231) is larger than the outer diameter of the connecting shaft (111), and the connecting shaft (111) can move in the connecting hole (231) along the length direction of the connecting hole (231).

9. The booster handle of claim 7 wherein: the pivot portion (21) comprises two side plates (211) and a bottom plate (212) which are arranged oppositely, a pivot shaft (24) is arranged between one ends of the two side plates (211), the bottom plate (212) is arranged between the other ends of the two side plates, the other ends of the two lifting portions (23) are respectively connected with the two side plates (211) in a rotating mode, and a first connecting structure connected with the inserting portion is arranged on the bottom plate (212).

10. A booster handle according to claim 5 or 9 wherein: the first connecting structure is a positioning pin (213).

11. The booster handle of claim 6 wherein: wiring handle (10) are including two wiring handle curb plates that relative interval set up, and two wiring handle curb plate middle parts are as connecting portion (11), be equipped with shaft hole (15) on connecting portion (11), connecting axle (111) pass shaft hole (15) and are connected with connecting portion (11), and the one end of two wiring handle curb plates is connected with the both ends of handheld portion (12) respectively, and the other end of two wiring handle curb plates is as sliding part (13).

12. A plug-in circuit breaker, including setting up contact system, connector (4) and actuating mechanism in circuit breaker casing (1), the contact system is connected with the outer electrically conductive piece through connector (4), and connector (4) are equipped with the clamping end who presss from both sides tight electric conductor, and actuating mechanism is connected with connector (4) and is used for locking or unlocking connector (4), its characterized in that: further comprising a booster handle according to any of claims 1-11, a handle connection being provided outside the circuit breaker housing (1), said handle connection being in driving engagement with the drive mechanism.

13. Plug-in circuit breaker according to claim 12, characterized in that: the handle connecting mechanism comprises a first blocking structure used for being connected with the power-assisted handle.

14. The plug-in circuit breaker according to claim 13, characterized in that: the first blocking structure is a hook structure, a hole structure, a groove structure, an axle structure, a buckle structure or a clamping groove structure.

15. Plug-in circuit breaker according to claim 12, characterized in that: the handle connecting mechanism comprises a wiring handle connecting piece (30), one end of the wiring handle connecting piece (30) is hinged with the driving mechanism, and the other end of the wiring handle connecting piece (30) is detachably connected with the power-assisted handle.

16. The plug-in circuit breaker according to claim 15, characterized in that: the circuit breaker comprises a circuit breaker shell (1), wherein an operation panel is arranged on the circuit breaker shell, a containing groove is formed in the operation panel of the circuit breaker shell (1), one end of a connecting piece (30) of a wiring handle is located in the containing groove and hinged to a driving mechanism, and the other end of the connecting piece rotates between the inner side and the outer side of the containing groove.

17. The plug-in circuit breaker according to claim 16, characterized in that: including the coupling mechanism apron that is used for hiding the holding tank.

18. Plug-in circuit breaker according to claim 12, characterized in that: the driving mechanism comprises a rotating mechanism (32) and a transmission mechanism (31) moving linearly, the rotating mechanism (32) is rotatably installed on the connector (4), one end of the transmission mechanism (31) is matched with the rotating mechanism (32), and the other end of the transmission mechanism is provided with the handle connecting mechanism.

19. Plug-in circuit breaker according to claim 12, characterized in that: the driving mechanism further comprises a linkage mechanism (33) located between the rotating mechanism (32) and the transmission mechanism (31), the rotating mechanisms (32) are respectively installed on the connectors (4) in a rotating mode and are respectively connected with the linkage mechanism (33), the transmission mechanism (31) drives the rotating mechanisms (32) to rotate through the linkage mechanism (33), when the transmission mechanism (31) moves linearly to push the linkage mechanism (33), the linkage mechanism (33) compresses the reset spring (34) and drives the rotating mechanism (32) to rotate towards one side, and when the transmission mechanism (31) is far away from the linkage mechanism (33), the reset spring (34) drives the linkage mechanism (33) to drive the rotating mechanism (32) to rotate towards the other side for resetting.

20. Plug-in circuit breaker according to claim 12, characterized in that: and a power-assisted handle detachably connected with the handle connecting mechanism is also installed.

21. A plug-in circuit breaker according to claim 20, characterized in that: the power-assisted handle comprises a wiring handle (10), the wiring handle (10) is detachably connected with the handle connecting mechanism, and the wiring handle (10) drives the driving mechanism to drive the connector (4) to be locked or unlocked; or, the helping hand handle includes lifting handle (20), lifting handle (20) can be dismantled with handle coupling mechanism and be connected, and can dismantle with plug-in circuit breaker's cartridge position and be connected, and lifting handle (20) pass through handle coupling mechanism and drive the relative cartridge position removal of plug-in circuit breaker.

Images