CN215869234U - Plug-in and pull-out assisting mechanism of plug-in circuit breaker - Google Patents

Abstract

A plug-in assisting mechanism of a plug-in circuit breaker comprises a lifting handle, wherein the lifting handle is connected with a plug-in position of the plug-in circuit breaker, the lifting handle is provided with a connecting mechanism and a supporting mechanism, the connecting mechanism is connected with the plug-in circuit breaker, the supporting mechanism is provided with a supporting part matched with the plug-in circuit breaker, when the lifting handle moves towards a direction far away from the plug-in circuit breaker, the connecting mechanism pulls out the plug-in circuit breaker from the plug-in position, when the lifting handle moves towards a direction close to the plug-in circuit breaker, the supporting part presses the circuit breaker to insert the plug-in circuit breaker into the plug-in position, the lifting handle arranged above the plug-in circuit breaker drives the circuit breaker to move and insert and extract, the plug-in assisting mechanism not only has the characteristic of labor saving, but also the supporting mechanism on the lifting handle can block the plug-in circuit breaker from rotating, the operation is very convenient.

Description

Plug-in and pull-out assisting mechanism of plug-in circuit breaker

Technical Field

The utility model relates to the field of low-voltage electric appliances, in particular to an insertion-pulling assisting mechanism of a plug-in circuit breaker.

Background

A circuit breaker is one of important electrical components in the field of low-voltage electrical equipment, and is used for connecting and disconnecting a current, automatically cutting off the circuit when an overcurrent occurs or a short circuit occurs in the circuit, and protecting a power supply line, a motor, and the like. The plug-in type connection is one of the connection modes of the circuit breaker, the circuit breaker is electrically connected with the external conductive piece through the clamping contact, although the connection mode is convenient for wiring, the volume of the circuit breaker is large, particularly, the plug-in type molded case circuit breaker needs large strength, and the circuit breaker needs to be aligned with the external conductive piece in the process of being plugged into a cabinet, so that the operation is very difficult.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides an insertion-assisted plugging mechanism of a plug-in circuit breaker, which is simple to operate and convenient to align.

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

a plug-in and pull-out assisting mechanism of a plug-in circuit breaker comprises a lifting handle, wherein the lifting handle is used for being connected with a plug-in position of the plug-in circuit breaker, a connecting mechanism and a supporting mechanism are arranged on the lifting handle, the connecting mechanism is used for being connected with the plug-in circuit breaker, and the supporting mechanism is provided with an abutting part matched with the plug-in circuit breaker;

the lifting handle is to keeping away from during plug-in circuit breaker's direction motion, coupling mechanism pulls out from the cartridge position plug-in circuit breaker works as lifting handle is to being close to during plug-in circuit breaker's direction motion, support to pressing plug-in circuit breaker by the portion of supporting, be used for with plug-in circuit breaker inserts the cartridge position.

Preferably, the supporting mechanism is movably or rotatably arranged on the lifting handle.

Preferably, a locking mechanism is provided between the lifting handle and the support structure, the locking mechanism locking the support mechanism in a retracted position separate from the plug-in circuit breaker.

Preferably, the locking mechanism is an elastic structure or a snap structure.

Preferably, the supporting mechanism is connected with an elastic piece, the elastic piece is arranged between the supporting mechanism and the lifting handle, the supporting mechanism is driven to move or rotate, and the supporting mechanism is locked at a working position where the abutting part is used for abutting against the plug-in circuit breaker.

Preferably, the supporting mechanism comprises a supporting shaft, the locking mechanism comprises a closing groove arranged on the lifting handle, and the supporting shaft is in interference fit with a groove opening of the closing groove and locks the supporting structure at a recovery position separated from the plug-in circuit breaker.

Preferably, the lifting handle comprises a pivot part, a lifting part and a lifting part, one end of the lifting part is connected with the lifting part, the other end of the lifting part is installed on the insertion position through the pivot part, the lifting part can be operated to drive the lifting part to rotate around the pivot part, and the lifting part is provided with the connecting mechanism and the supporting mechanism.

Preferably, the lifting part is provided with a connecting hole matched with the connecting mechanism, the connecting mechanism is a connecting shaft penetrating through the connecting hole, the size of the connecting hole is larger than the outer diameter of the connecting shaft, and the connecting mechanism can move in the connecting hole along the length direction of the connecting hole.

Preferably, the supporting mechanism comprises a supporting member and a rotating shaft, one end of the supporting member is rotatably mounted on the lifting handle through the rotating shaft, and the other end of the supporting member is an abutting part which is abutted and matched with the plug-in circuit breaker.

Preferably, the supporting mechanism further comprises a limiting shaft, the rotating shaft and the limiting shaft are arranged on the supporting piece in parallel, the limiting shaft is in limiting fit with the lifting handle, and the supporting piece is limited to be in butt fit with the plug-in circuit breaker.

Preferably, the supporting mechanism further comprises a supporting shaft, the rotating shaft, the limiting shaft and the supporting shaft are arranged on the supporting piece in parallel, the limiting shaft is arranged between the rotating shaft and the supporting shaft, and the supporting shaft is provided with the abutting portion.

Preferably, the portion of supporting is equipped with the gyro wheel, the axis of gyro wheel with line between the axis of rotation is OM, the axis of gyro wheel is ON with plug-in circuit breaker's operating panel's perpendicular line, support the portion of supporting and move to when supporting and support plug-in circuit breaker position, OM's swing route passes through ON.

Preferably, the lifting handle is provided with a limiting groove matched with the limiting shaft, the limiting groove is provided with a limiting surface, and the abutting part is positioned at the working position abutted against the plug-in circuit breaker and matched with the limiting surface in a limiting way.

Preferably, a closing groove is formed in the lifting handle, and the supporting shaft is in interference fit with the closing groove.

Preferably, the pivot part is provided with a positioning pin, the insertion position is provided with a positioning hole matched with the positioning pin, and the lifting handle is connected with the insertion position through the positioning pin.

Preferably, the plug-in circuit breaker comprises an operating mechanism, a contact system, a connector and a driving mechanism which are arranged in a circuit breaker shell, wherein a handle hole used for extending a handle of the circuit breaker is formed in an operating panel at one end of the circuit breaker shell, two handle connecting pieces are arranged on two sides of the operating panel, the handle of the circuit breaker is connected with the operating mechanism, the connector is located in the other end of the circuit breaker shell, the contact system is connected with an external conductive piece in a plug-in mounting position through the connector, the connector is provided with a clamping end used for clamping an external conductive body, and the driving mechanism is connected with the connector and used for locking or unlocking the connector.

The plug-in and pull-out assisting mechanism of the plug-in circuit breaker provided by the utility model has the advantages that the lifting handle arranged above the plug-in circuit breaker drives the circuit breaker to be movably plugged in and pulled out, the plug-in and pull-out assisting mechanism not only has the characteristic of labor saving, but also can prevent the plug-in circuit breaker from rotating due to the supporting mechanism on the lifting handle, and the operation is very convenient.

Drawings

Fig. 1 is a schematic structural diagram of a plug-in assisting mechanism of the plug-in circuit breaker of the utility model;

FIG. 2 is a side view of the utility model when the support mechanism is locked with the locking mechanism;

FIG. 3 is a side view of the utility model with the support mechanism unlocked from the locking mechanism;

fig. 4-6 are the process of the present invention creating a plug-in circuit breaker inserted into a cabinet;

FIG. 7 is an enlarged view of a portion of FIG. 6 according to the utility model;

fig. 8-9 are views illustrating the process of the present invention for pulling the plug-in type circuit breaker out of the cabinet;

FIG. 10 is a schematic view of the construction of the lift handle of the present invention;

FIG. 11 is an exploded view of the lift handle of the present invention;

fig. 12 is a schematic structural view of the inventive locating pin.

Detailed Description

The following further describes a specific embodiment of the plug-in mechanism of the plug-in circuit breaker according to the utility model, with reference to the embodiments shown in fig. 1 to 12. The plug-in aid mechanism of the plug-in circuit breaker created by the present invention is not limited to the description of the following embodiments.

As shown in fig. 1-6, the plug-in/pull-out assisting mechanism of a plug-in circuit breaker, which is created by the present invention, includes a lifting handle 20, where the lifting handle 20 is used for connecting with a plug-in position of the plug-in circuit breaker, and a connecting mechanism 30 and a supporting mechanism 10 are arranged on the lifting handle, the connecting mechanism is connected with the plug-in circuit breaker, and the supporting mechanism 10 has an abutting portion that is engaged with the plug-in circuit breaker;

the lifting handle is to keeping away from during plug-in circuit breaker's direction motion, coupling mechanism pulls out from the cartridge position plug-in circuit breaker works as lifting handle is to being close to during plug-in circuit breaker's direction motion, support to press the circuit breaker by the portion of supporting, be used for with plug-in circuit breaker inserts the cartridge position.

The plug-in and pull-out assisting mechanism of the plug-in circuit breaker provided by the utility model has the advantages that the lifting handle arranged above the plug-in circuit breaker drives the circuit breaker to be movably plugged in and pulled out, the plug-in and pull-out assisting mechanism not only has the characteristic of labor saving, but also can prevent the plug-in circuit breaker from rotating by the supporting mechanism 10 on the lifting handle, and is very convenient to operate. 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.

As shown in fig. 9-10, the supporting mechanism 10 is movably or rotatably disposed on the lifting handle 20, the supporting mechanism 10 is connected to the elastic member 11, the elastic member 11 is disposed between the supporting mechanism 10 and the lifting handle, the supporting mechanism 10 is driven to move or rotate, the supporting mechanism 10 is locked at a working position where the abutting portion abuts against the plug-in circuit breaker, and the elastic member 11 drives the supporting mechanism 10 to move or rotate in a direction abutting against the plug-in circuit breaker and is kept at the preset working position after the supporting mechanism reaches the preset working position. Of course, the support mechanism 10 may also be rigidly fixed to the lifting handle 20, but this requires a high precision in the position of the support mechanism 10, which otherwise would not fit exactly against the plug-in circuit breaker.

The supporting mechanism 10 of the present embodiment is rotatably disposed on the lifting handle 20, and the elastic member 11 is a torsion spring. By rotatably mounting the support mechanism 10 on the lifting handle 20, the structure is simple and the assembly is easy, and the space occupied by the rotation is smaller. It is understood that the elastic member 11 may be a compression spring, a tension spring, a leaf spring, or the like, and the supporting mechanism 10 may be linearly slidably disposed on the lifting handle 20.

As shown in fig. 10 to 12, the lifting handle 20 of this embodiment includes a pivot portion 21, a lifting portion 22 and a lifting portion 23, the pivot portion 21 is detachably connected to the cabinet 5, the lifting portion 23 is detachably connected to the plug-in circuit breaker, 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 cabinet 5, thereby assisting in pulling the plug-in circuit breaker out of the cabinet 5. Drive the circuit breaker through detachable lifting handle 20 and remove on rack 5, not only make a lifting handle 20 can operate the circuit breaker of a plurality of differences, lifting handle 20 can also reduce the space that the circuit breaker occupy after taking off moreover. It is understood that the pivot portion 21 and the cabinet 5 may be directly connected, and the lifting portion 23 and the plug-in circuit breaker may be directly connected without being detachable, which falls within the protection scope of the present invention.

Specifically, the lifting handle 20 includes a pivot portion 21, a lifting portion 22 and two lifting portions 23 disposed opposite to each other, one end of each of the two lifting portions 23 is connected to two ends of the lifting portion 22, the other end of each of the two lifting portions 23 is mounted on the cabinet 5 through the pivot portion 21, the lifting portion 22 is operated to drive the lifting portion 23 to rotate around the pivot portion 21, the connecting mechanism 30 is disposed in the middle of each of the two lifting portions 23, and the supporting mechanism 10 is disposed on each of the two lifting portions 23 and located between the connecting mechanism 30 and the pivot portion 21.

As shown in fig. 10 to 11, the connecting mechanism 30 is a circular shaft structure, two ends of the circular shaft structure are respectively connected to the two lifting portions 23, the plug-in circuit breaker is provided with a hook structure connected to the connecting mechanism 30, and the plug-in circuit breaker and the connecting mechanism are convenient to detach without any installation tool. An installation part 30a and an action part 30b are respectively arranged at two ends of the round shaft structure, the installation part 30a is used for being installed on the two lifting parts 23, and the action part 30b is used for being matched with the hook structure. Specifically, be equipped with on the plug-in circuit breaker and dismantle the handle connecting piece 31 of being connected with coupling mechanism 30, handle connecting piece 31 is the couple structure, and coupling mechanism 30 passes the handle connecting piece 31 of couple structure and just can realize connecting, takes coupling mechanism 30 out and just can realize dismantling, has simple structure and convenient characteristics of operation. It is understood that the handle connecting mechanism 31 may also have other shapes, for example, the handle connecting member 31 may have a through hole structure or a shaft structure, and the connecting mechanism 30 of the lifting handle 20 may pass through the through hole structure to connect; the lifting handle 20 may be in a hook structure or a through hole structure by using a shaft structure such as a shaft protrusion protruding from the handle connector 31, which falls within the protection scope of the present invention.

As shown in fig. 1, an embodiment of the handle connection mechanism 31 includes a handle connection member 31, the handle connection member 31 is a sheet structure, a connection mechanism 30 receiving groove is formed on an operation panel at one end of the circuit breaker housing 7, one end of the handle connection member 31 is rotatably installed in the connection mechanism 30 receiving groove, and the other end of the handle connection member 31 can be rotatably disposed in the connection mechanism 30 receiving groove or rotatably extend out of the connection mechanism 30 receiving groove. The handle link 31 can be retracted into the circuit breaker housing 7 when not in use, further reducing the circuit breaker volume. Preferably, a cover plate of the connecting mechanism 30 for covering the accommodating groove of the connecting mechanism 30 is further arranged on the operation panel at one end of the plug-in circuit breaker. The cover plate of the connecting mechanism 30 is pivotally arranged, when the lifting handle 20 is not connected, the handle connecting piece 31 is rotatably arranged in the accommodating groove of the connecting mechanism 30 to cover the cover plate of the connecting mechanism 30; when the lifting handle 20 needs to be connected, the cover plate of the connecting mechanism 30 is opened, and the hook structure is rotated out to be connected with the lifting handle 20.

Preferably, the plug-in circuit breaker of this embodiment is a plug-in molded case circuit breaker, the plug-in circuit breaker includes an operating mechanism disposed in the circuit breaker housing 7, a contact system, a connector and a driving mechanism, a handle hole for extending a handle of the circuit breaker is disposed in a middle portion of an operating panel at one end of the circuit breaker housing 7, two handle connectors 31 are disposed on two sides of the operating panel, the handle of the circuit breaker is connected to the operating mechanism, the connector is disposed at the other end of the circuit breaker housing 7, the contact system is connected to an external conductive piece 6 in the cabinet 5 through the connector, the connector is provided with a clamping end for clamping the external conductive piece 6, the external conductive piece 6 is inserted into the circuit breaker housing 7 and connected to the clamping end of the connector, and the driving mechanism is connected to the connector for locking or unlocking the connector, i.e., the external conductive piece 6 of the clamping end is loosened or clamped. Preferably, the handle link 31 is hinged to the driving mechanism, is connected to one end of the handle link 31, and can unlock the connector and pull the plug-in type circuit breaker out of the cabinet by lifting the handle 20. Of course, as another embodiment, the handle connecting member 31 may be hinged to the circuit breaker housing 7 and not connected to the driving mechanism.

As shown in fig. 10 to 11, the lifting unit 23 of the present embodiment is provided with a connection hole 231 engaged with the connection mechanism 30, the connection mechanism 30 is a connection shaft passing through the connection hole 231, the connection hole 231 has a size larger than an outer diameter of the connection shaft, and the connection mechanism 30 is movable in the connection hole 231 along a length direction of the connection hole 231. The connecting mechanism 30 moves in the connecting hole 231, so that the position of the connecting mechanism 30 can be adjusted, the connecting mechanism 30 can adjust the position along with the plugging and unplugging of the plug-in circuit breaker, the plug-in circuit breaker can be suitable for circuit breakers of different sizes, the application range is wider, and the popularization and the use are convenient. Of course, the inner diameter of the connection hole 231 may be matched to the connection mechanism 30, and the connection mechanism 30 may be rotatably connected to the elevating unit 23 through the connection hole 231.

As shown in fig. 10 to 11, the supporting mechanism 10 includes a supporting member 101 and a rotating shaft 102, one end of the supporting member 101 is rotatably installed between the two lifting portions 23 of the lifting handle 20 through the rotating shaft 102, the other end of the supporting member 101 is an abutting portion that is in abutting engagement with the plug-in circuit breaker, and the elastic member 11 is connected between the supporting member 101 and the lifting handle 20, and drives the supporting mechanism 10 to move or rotate, so as to lock the supporting mechanism 10 at a position where the abutting portion abuts against the plug-in circuit breaker.

Preferably, the supporting mechanism 10 of the present embodiment includes a supporting member 101, and a rotating shaft 102, a limiting shaft 103 and a supporting shaft 104 respectively disposed on the supporting member 101, the rotating shaft 102, the limiting shaft 103 and the supporting shaft 104 are mounted on the supporting member 101 in parallel, the limiting shaft 103 is disposed between the rotating shaft 102 and the supporting shaft 104, the supporting member 101 is rotatably connected to the lifting handle 20 through the rotating shaft 102, the limiting shaft 103 is in limiting fit with the lifting handle 20, the limiting elastic member 11 pushes the supporting member 101 to rotate by a maximum angle, and the supporting shaft 104 is provided with a roller 105 as an abutting portion abutting against the plug-in circuit breaker. Specifically, the support 101 is installed between the two lifters 23 through the rotation shaft 102, the elastic part 11 is a torsion spring, the torsion spring is sleeved on the rotating shaft 102, one end of the torsion spring is connected with the lifting handle 20, the other end of the torsion spring is connected with the limiting shaft 103, the supporting part 101 is driven to rotate towards the direction matched with the plug-in circuit breaker in an abutting mode, two ends of the limiting shaft 103 are in limiting fit with the two lifting parts 23, the limiting elastic part 11 pushes the supporting part 101 to rotate at the maximum angle, i.e., the position abutting against the plug-in type circuit breaker, a limit groove 106 engaged with the limit shaft 103 is provided on the lifting handle 20, on the supporting shaft 104, a roller 105 is provided as an abutment, the roller 105 being able to roll on the top side of the plug-in circuit breaker, so as to reduce the friction force between the support and the plug-in circuit breaker, the limit groove 106 can be in sliding fit with the limit shaft 103 to guide the movement of the support 101.

Preferably, as shown in fig. 6, when the plug-in circuit breaker is inserted into the cabinet 5, the axis of the roller 105 and the connecting line between the rotating shafts 102 are OM, the axis of the roller 105 and the vertical line of the circuit breaker operating panel are ON, when the abutting portion moves to abut against the position of the circuit breaker, the swing path of the OM passes through ON, so as to ensure that the supporting member 101 of the plug-in circuit breaker 20 in the lifting handle in the plugging and unplugging process is always stopped ON the lifting portion 23.

Further, the cell wall of spacing groove 106 one end constitutes spacing face 107, and elastic component 11 promotes spacing axle 103 and rotates and spacing cooperation with spacing face 107, support the portion be in with when the operating position of plug-in circuit breaker butt, spacing axle 103 and spacing cooperation of face 107, be equipped with locking mechanical system 12 on the lifting handle 20, locking mechanical system 12 is elastic construction or buckle structure, and back shaft 104 can change over to spacing inslot 106 and lock with locking mechanical system 12. The cell walls at the both ends of limiting groove 106 constitute limiting surface 107 and dodge face 108 respectively, and when spacing axle 103 was blockked by limiting surface 107, inject support piece 101 with plug-in circuit breaker butt complex angle, dodge face 108 and be used for dodging limiting axle 103, make support piece 101 can contact with locking mechanical system 12 that sets up on lifting handle 20, locking mechanical system 12 can lock supporting mechanism 10 in the position of dodging plug-in circuit breaker, prevent supporting mechanism 10 and plug-in circuit breaker contact, for example at the in-process of extracting plug-in circuit breaker, do not need supporting mechanism 10 to block plug-in circuit breaker, lock supporting mechanism 10 in lifting handle 20.

The locking mechanism 12 of this embodiment is a snap structure fixedly disposed on the lifting handle 20, the locking mechanism 12 includes a slot provided on the lifting handle 20, the supporting shaft 104 is in interference fit with a notch of the slot, and the supporting structure 10 is locked at a recovery position where the abutting portion is separated from the circuit breaker. It will be appreciated that other configurations of the locking mechanism 12 may be used, such as a raised or recessed configuration. Furthermore, the locking mechanism 12 may also be engaged with the limiting shaft 103 on the support 101, or directly engaged with the support 101. The locking mechanism 12 of the present embodiment is engaged with the supporting shaft 104 without additional processing, and has the advantages of simple structure and low cost. As shown in fig. 10 to 11, a positioning pin 213 is disposed on the pivot portion 21, a positioning hole 51 matched with the positioning pin 213 is disposed on the cabinet 5, the lifting handle 20 is connected to the cabinet 5 through the positioning pin 213, and when the lifting portion 23 is driven by the lifting portion 22 to move in a direction away from the cabinet 5, the pivot portion 21 applies an acting force to the cabinet 5 toward the cabinet 5, and the two are convenient to detach without any mounting tool. It is understood that the handle positioning hole may be provided on the pivoting portion 21, and the positioning pin 213 provided on the cabinet 5 may also achieve the same matching, all falling within the protection scope of the present invention. The pivoting part 21 of this embodiment includes two opposite side plates 211 and a bottom plate 212, a pivot shaft 24 is arranged before one end of the two side plates 211, the bottom plate 212 is connected between the other ends, the other ends of the two lifting parts 23 are respectively connected with the two side plates 211 through the pivot shaft 24 in a rotating manner, the bottom plate 212 is used for being connected with the cabinet 5, and a positioning pin 213 detachably connected with the cabinet 5 is arranged on the bottom plate 212.

As shown in fig. 10 to 11, each lifting portion 23 includes a first side plate, a second side plate and a third side plate which are sequentially connected in a bending manner, an obtuse angle is formed between the first side plate and the second side plate, an obtuse angle is formed between the second side plate and the third side plate, the first side plate is connected with the lifting portion 22, the third side plate is rotatably connected with the side plate 211 of the pivoting portion 21 through the pivot shaft 24, and the bent lifting portion 23 is convenient for a user to operate. Specifically, one end of each of the two elevating portions 23 of the present embodiment is connected to the lifting portion 22 through an upper mounting hole 233, the other end of each of the two elevating portions 23 is connected to the pivot shaft 24 through a lower mounting hole 234, the pivot shaft 24 is rotatably connected to the two side plates 211 of the pivot portion 21, the connecting mechanism 30 is disposed between the two elevating portions 23, two ends of the connecting mechanism 30 are respectively matched with the connecting holes 231 of the two elevating portions 23, the supporting mechanism 10 is disposed between the two elevating portions 23 and located between the connecting mechanism 30 and the pivot portion 21, two handle connecting members 31 are disposed on two sides of the operation panel at one end of the circuit breaker, the two handle connecting members 31 are respectively located on the outer sides of the two elevating portions 23, and two ends of the connecting mechanism 30 are respectively connected to the handle connecting members 31 after passing through the elevating portions 23 from the inner side. Through setting up coupling mechanism 30 in the inboard of two lift portions 23, not only can guarantee that lifting handle 20 has sufficient intensity, effectively utilize the inside space of lifting handle 20 to hold coupling mechanism 30 again, compact structure and reliable have small characteristics. It is understood that the connection mechanism 30 may be disposed at other positions of the lifting handle 20, and the handle connection member 31 is also disposed inside the two lifting portions 23 to be engaged with the connection mechanism 30.

As shown in fig. 1 and 12, the cabinet 5 is provided with positioning holes 51 that are engaged with the positioning pins 213. Preferably, the positioning hole 51 includes an insertion portion 52 for avoiding the positioning pin 213, and a stopper portion 53 communicating with one side of the insertion portion 52, and an inner diameter of the stopper portion 53 is smaller than that of the insertion portion 52. Preferably, 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 pin hole 217 of the bottom plate 212, the guide head 216 is circular so as to pass through the insertion portion 52, a limit step 215 is arranged between the mounting head 214 and the guide head 216, 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 and the limit portion 53 are limited, and the reliability of assembling the lifting handle 20 with the cabinet is further ensured through the limit matching of the positioning pin 213 and the positioning hole 51. 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. Only the frame of the cabinet 5 is shown in the figure, and it is obvious that the cabinet 5 may have other structures.

As shown in fig. 8 to 9, in the process of pulling out the plug-in circuit breaker from the cabinet 5, the connection mechanism 30 of the lifting handle 20 is connected to the handle connection member 31 of the plug-in circuit breaker, the plug-in circuit breaker is positioned by the cabinet 5 without being tilted and deviated, and at this time, the support mechanism 10 does not need to participate, the support mechanism 10 is locked inside the lifting handle 20 by the locking mechanism 12, the lifting handle 20 rotates clockwise around the pivot portion 21 installed on the cabinet 5, and the lifting portion 23 drives the connection mechanism 30 to be lifted, so that the plug-in circuit breaker is pulled out.

As shown in fig. 4 to 6, the process of inserting the plug-in type circuit breaker into the cabinet 5, the connection mechanism 30 of the lifting handle 20 is connected with the handle connection member 31 of the plug-in type circuit breaker, and the support mechanism 10 is unlocked from the locking mechanism 12, so that the support mechanism 10 is pressed against the top side of the plug-in type circuit breaker by the elastic member 11, the support mechanism 10 is located at one side of the connection mechanism 30, so that the plug-in type circuit breaker is not rotationally deviated around the connection mechanism 30, and then the plug-in type circuit breaker is inserted into the cabinet 5, before the plug-in type circuit breaker is contacted with the external conductive member 6, the rotation of the plug-in type circuit breaker is blocked by the support mechanism 10, so that the bottom of the plug-in type circuit breaker can be aligned with the external conductive member 6.

The foregoing is a more detailed description of the utility model, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the inventive concept, and all should be considered as falling within the protection scope of the utility model.

Claims (15)

1. The utility model provides a plug-in mechanism helps of bayonet circuit breaker which characterized in that: the lifting handle (20) is used for being connected with a plug-in mounting position of a plug-in circuit breaker, a connecting mechanism (30) and a supporting mechanism (10) are arranged on the lifting handle, the connecting mechanism is used for being connected with the plug-in circuit breaker, and the supporting mechanism (10) is provided with a supporting part matched with the plug-in circuit breaker;

the lifting handle is to keeping away from during plug-in circuit breaker's direction motion, coupling mechanism pulls out from the cartridge position plug-in circuit breaker works as lifting handle is to being close to during plug-in circuit breaker's direction motion, support to pressing plug-in circuit breaker by the portion of supporting, be used for with plug-in circuit breaker inserts the cartridge position.

2. A plug-assist mechanism for a plug-in circuit breaker according to claim 1, further comprising: the supporting mechanism (10) is movably or rotatably arranged on the lifting handle (20).

3. Plug-in assist mechanism for a plug-in circuit breaker according to claim 1 or 2, characterized in that: a locking mechanism (12) is arranged between the lifting handle (20) and the supporting mechanism (10), and the supporting mechanism (10) is locked at a recovery position separated from the plug-in circuit breaker by the locking mechanism (12).

4. A plug-in assist mechanism for a plug-in circuit breaker according to claim 3, further comprising: the locking mechanism (12) is of an elastic structure or a buckling structure.

5. A plug-assist mechanism for a plug-in circuit breaker according to claim 2, further comprising: the supporting mechanism (10) is connected with an elastic piece (11), the elastic piece (11) is arranged between the supporting mechanism (10) and the lifting handle, the supporting mechanism (10) is driven to move or rotate, and the supporting mechanism (10) is locked at a working position where the abutting part is used for abutting against the plug-in circuit breaker.

6. A plug-in assist mechanism for a plug-in circuit breaker according to claim 3, further comprising: the supporting mechanism (10) comprises a supporting shaft (104), the locking mechanism (12) comprises a closing groove arranged on the lifting handle (20), the supporting shaft (104) is in interference fit with a groove opening of the closing groove, and the supporting mechanism (10) is locked at a recovery position separated from the plug-in circuit breaker.

7. A plug-assist mechanism for a plug-in circuit breaker according to claim 1, further comprising: the lifting handle (20) comprises a pivoting part (21), a lifting part (22) and a lifting part (23), one end of the lifting part (23) is connected with the lifting part (22), the other end of the lifting part is installed on the inserting position through the pivoting part (21), the lifting part (23) can be driven to rotate around the pivoting part (21) by operating the lifting part (22), and the connecting mechanism (30) and the supporting mechanism (10) are arranged on the lifting part (23).

8. A plug-assist mechanism for a plug-in circuit breaker according to claim 7, wherein: the lifting part (23) is provided with a connecting hole (231) matched with the connecting mechanism (30), the connecting mechanism (30) penetrates through the connecting shaft of the connecting hole (231), the size of the connecting hole (231) is larger than the outer diameter of the connecting shaft, and the connecting mechanism (30) can move in the connecting hole (231) along the length direction of the connecting hole (231).

9. Plug-in assist mechanism for a plug-in circuit breaker according to claim 1 or 2, characterized in that: the supporting mechanism (10) comprises a supporting piece (101) and a rotating shaft (102), one end of the supporting piece (101) is rotatably installed on the lifting handle (20) through the rotating shaft (102), and the other end of the supporting piece (101) is an abutting portion which is abutted to and matched with the plug-in circuit breaker.

10. A plug-assist mechanism for a plug-in circuit breaker according to claim 9, wherein: the supporting mechanism (10) further comprises a limiting shaft (103), the rotating shaft (102) and the limiting shaft (103) are parallelly arranged on the supporting piece (101), the limiting shaft (103) is in limiting fit with the lifting handle (20), and the supporting piece (101) and the plug-in circuit breaker are limited in abutting fit angle.

11. A plug-assist mechanism for a plug-in circuit breaker according to claim 10, wherein: the supporting mechanism (10) further comprises a supporting shaft (104), the rotating shaft (102), the limiting shaft (103) and the supporting shaft (104) are arranged on the supporting piece (101) in parallel, the limiting shaft (103) is arranged between the rotating shaft (102) and the supporting shaft (104), and the supporting shaft (104) is provided with the abutting portion.

12. A plug-assist mechanism for a plug-in circuit breaker according to claim 11, further comprising: the portion of supporting is equipped with gyro wheel (105), the axis of gyro wheel (105) with line between axis of rotation (102) is OM, the axis of gyro wheel (105) is ON with plug-in circuit breaker's operating panel's perpendicular line, when supporting the portion of supporting and moving to supporting and supporting plug-in circuit breaker position, OM's swing route passes through ON.

13. A plug-assist mechanism for a plug-in circuit breaker according to claim 11, further comprising: lifting handle (20) be equipped with spacing axle (103) complex spacing groove (106), spacing groove (106) are equipped with spacing face (107), support to lean on the portion be in with during the operating position of bayonet circuit breaker butt, spacing axle (103) and spacing face (107) spacing cooperation.

14. A plug-assist mechanism for a plug-in circuit breaker according to claim 11, further comprising: a closing groove is formed in the lifting handle (20), and the supporting shaft (104) is in interference fit with the closing groove.

15. A plug-assist mechanism for a plug-in circuit breaker according to claim 7, wherein: the lifting handle (20) is connected with the plug-in mounting position through the positioning pin (213).

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