CN212411974U - Connecting piece, locking mechanical system, fixed establishment, installation component and circuit breaker - Google Patents

Abstract

The utility model provides a connecting piece and have locking mechanical system, fixed establishment, installation component and circuit breaker of this connecting piece. The connecting piece is including the first support arm and the second support arm that link to each other, be equipped with between first support arm and the second support arm and rotate connecting portion, be formed with first boss on the first support arm, an organic whole extends flexible support arm on the first support arm, the extending direction of elasticity support arm deviates from first boss, be formed with the second boss on the second support arm, the direction of second boss is the same with the extending direction of elasticity support arm. The connecting piece that this scheme provided can be applicable to simultaneously and lock the locking mechanical system who locks or the unblock to the button and fix the fixed establishment who unlocks to bayonet circuit breaker, and then makes the structure simplify the most, and the very big reduction of the assembly degree of difficulty, and occupation space is little, can leave more spaces and arrange other parts, makes and distributes more rationalize between the part, is applicable to miniaturized circuit breaker.

Description

Connecting piece, locking mechanical system, fixed establishment, installation component and circuit breaker

Technical Field

The utility model relates to a circuit breaker field; in particular to a connecting piece, a locking mechanism with the connecting piece, a fixing mechanism, a mounting assembly and a circuit breaker.

Background

The circuit breaker is divided into: there are bayonet, fixed and drawer type, the security that electrical equipment used the trade can effectively be improved in bayonet circuit breaker's use, along with the wide use of bayonet circuit breaker on various electrical equipment, in order to satisfy the installation needs of various different electrical equipment, bayonet circuit breaker's structure also develops various, in the overall arrangement of present traditional bayonet circuit breaker product when mounted position, generally adopt to press operating button, the circuit breaker is closed, the operating button of circuit breaker rebounds and resets after the operating force is got rid of, circuit breaker disconnection when pressing the button once more.

For the plug-in circuit breaker, whether the circuit breaker is assembled in place or not and the stability of installation influence the use safety of the circuit breaker. The chinese patent application No. 201711022046.3 discloses a locking mechanism of a circuit breaker operating device, which is provided with a locking mechanism in a housing, the locking mechanism being capable of locking or unlocking a button; when the circuit breaker is inserted in place, the locking mechanism unlocks the button, and the button can be normally pressed. Meanwhile, the invention patent with the application number of 201711022048.2 discloses a fixing and unlocking mechanism of a plug-in circuit breaker, wherein a locking mechanism is arranged in a shell to prevent the plug-in circuit breaker from being pulled out of an installation cabinet, and an unlocking mechanism is also arranged in the shell to unlock the locking mechanism to enable the plug-in circuit breaker to be pulled out of the installation cabinet.

Although, the above discloses a locking mechanism for locking or unlocking a button and a fixing and unlocking mechanism for fixing and unlocking a plug-in circuit breaker, respectively; the structure is complex, at least one locking part and one torsion spring for applying elasticity are needed for realizing the structure, the occupied space is large, the variety of parts is large, and the assembly difficulty is large.

SUMMERY OF THE UTILITY MODEL

For this, the utility model provides a technical scheme can be applicable to the locking mechanical system who locks or the unblock to the button simultaneously through same spare part structure and fix the fixed establishment with the unblock to bayonet circuit breaker (this fixed establishment corresponds fixed and release mechanism in application number 201711022048.2 promptly), and then makes the structure simplify the most, the very big reduction of the assembly degree of difficulty, and occupation space is little, is applicable to miniaturized circuit breaker.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

the utility model provides a connecting piece, is including the first support arm and the second support arm that link to each other, be equipped with between first support arm and the second support arm and rotate connecting portion, be formed with first boss on the first support arm, an organic whole extends flexible support arm on the first support arm, the extending direction of elasticity support arm deviates from first boss, be formed with the second boss on the second support arm, the direction of second boss is the same with the extending direction of elasticity support arm.

A locking mechanism of a circuit breaker comprises a circuit breaker shell, a button and a locking piece, wherein a button inserting hole is formed in the circuit breaker shell, the button is inserted into the circuit breaker shell in a telescopic and movable mode through the button inserting hole, the locking piece is a connecting piece, the locking piece is hinged into the circuit breaker shell through a rotating connecting portion, a yielding hole corresponding to a second boss of the locking piece is formed in the circuit breaker shell, an elastic support arm abuts against the inner wall of the circuit breaker shell and exerts an elastic force which is pressed against the button on the first boss of the locking piece, and the second boss of the locking piece extends out of the circuit breaker shell through the yielding hole; the first boss of definition locking piece is the front end at the one end towards the button inserted hole, be equipped with the spacing step of the first boss front end of a corresponding locking piece on the button.

When this circuit breaker did not assemble in place, the first boss of locking piece was all the time the top touched on the button under the effect of elastic support arm, and the button is when pressing, and spacing step on it is supported and unable normal pressing by the first boss of locking piece, guarantee security. When the circuit breaker is assembled in place, the second boss of the locking piece can be pressed down by the cabinet plate, the first boss of the locking piece is driven by the pressing down of the second boss of the locking piece to overcome the elastic force of the elastic support arm so as to be separated from the button, and the limiting step on the button loses the abutting pressure of the first boss of the locking piece so as to realize normal pressing operation.

Further, the rotation connecting portion of locking piece is the shaft hole, be equipped with an articulated shaft in the circuit breaker casing, the axle hole cover of locking piece is located on the articulated shaft, and then realizes the articulated setting of locking piece.

Furthermore, the second boss of the locking piece is provided with an insertion surface which is opposite to the cabinet when the circuit breaker is inserted, and the insertion surface is an inclined surface.

A fixing mechanism of a circuit breaker comprises a circuit breaker shell, a button and a fixing piece, wherein a button inserting hole is formed in the circuit breaker shell, the button is inserted into the circuit breaker shell in a telescopic and movable mode through the button inserting hole, the fixing piece is the connecting piece, the fixing piece is hinged into the circuit breaker shell through a rotating connecting portion, a yielding hole corresponding to a second boss of the fixing piece is formed in the circuit breaker shell, an elastic support arm is abutted to the inner wall of the circuit breaker shell to apply elastic force, abutting against the button, to the first boss of the fixing piece, and the second boss of the fixing piece extends out of the circuit breaker shell through the yielding hole; the first boss of definition mounting is the rear end in the one end that deviates from the button inserted hole, be equipped with the spacing step of the first boss rear end of a corresponding mounting on the button.

When the breaker is installed in the cabinet, the second boss of the fixing piece is pressed down by the cabinet, so that the breaker can be smoothly installed, after the installation is completed, the cabinet is provided with a through hole corresponding to the second boss of the fixing piece, the second boss of the fixing piece is popped out again after losing the pressing of the cabinet and is clamped into the through hole of the cabinet, the assembly is completed, and the breaker cannot be normally pulled out at the moment; when the circuit breaker needs to be pulled out, the button is pulled outwards, the limiting step on the button is abutted to the rear end of the first boss of the fixing piece, the button continues to be pulled at the moment, the first boss of the fixing piece can be outwards arranged by the movement of the limiting step, the fixing piece is made to swing by the elastic force of overcoming the elastic support arm, the second boss of the fixing piece is made to retract into a section of distance and is separated from the through hole in the cabinet, the circuit breaker is unlocked from the cabinet, and the circuit breaker can be easily pulled out from the cabinet.

Further, the rotation connecting portion of mounting is the shaft hole, be equipped with an articulated shaft in the circuit breaker casing, the axle hole cover of mounting is located on the articulated shaft, and then realizes the articulated setting of mounting.

Furthermore, the second boss of the fixing part is provided with an insertion surface which is opposite to the cabinet when the breaker is inserted, and the insertion surface is an inclined surface.

The installation assembly of the circuit breaker comprises a circuit breaker shell, a button, a locking piece and a fixing piece, wherein a button inserting hole is formed in the circuit breaker shell, the button is inserted into the circuit breaker shell in a telescopic and movable mode through the button inserting hole, the locking piece and the fixing piece are both the connecting piece, and the locking piece and the fixing piece are hinged into the circuit breaker shell through a rotary connecting part; a first abdicating hole corresponding to the second boss of the locking piece and a second abdicating hole corresponding to the second boss of the fixing piece are formed in the breaker shell; the elastic support arm of the locking piece props against the inner wall of the shell of the circuit breaker to apply elastic force which pushes the button against the first boss of the locking piece, and the second boss of the locking piece extends out of the shell of the circuit breaker through the first abdicating hole; the elastic support arm of the fixing piece is abutted against the inner wall of the breaker shell to apply an elastic force which is abutted against the button to the first boss of the fixing piece, and the second boss of the fixing piece extends out of the breaker shell through the second abdicating hole; defining one end of the first boss facing the button insertion opening as a front end and one end deviating from the button insertion opening as a rear end; the button is provided with a first limiting step corresponding to the front end of the first boss of the locking piece and a second limiting step corresponding to the rear end of the first boss of the fixing piece.

Further, the rotation connecting portion of locking piece and the rotation connecting portion of mounting are the shaft hole, be equipped with an articulated shaft in the circuit breaker casing, the shaft hole of locking piece and the shaft hole of mounting all overlap locate on the articulated shaft, the coincidence is gone up on the perpendicular projection face of the first support arm of locking piece and mounting on the axial direction of articulated shaft.

Furthermore, the second boss of the locking piece and the second boss of the fixing piece are provided with an insertion surface which is opposite to the cabinet when the circuit breaker is inserted, and the insertion surfaces are inclined surfaces.

Furthermore, a connecting convex ring which is used for being connected with the moving contact of the circuit breaker in a linkage mode is arranged on the button, and the connecting convex ring protrudes out of the outer surface of the button and serves as the second limiting step.

Furthermore, the connecting convex ring also extends to the position corresponding to the rear end of the first boss of the locking piece, and the first boss of the locking piece is limited by the first limiting step and the connecting convex ring together.

A circuit breaker at least comprises the locking mechanism of the circuit breaker or the fixing mechanism of the circuit breaker or the mounting assembly of the circuit breaker.

Through the utility model provides a technical scheme has following beneficial effect:

the locking mechanism that is applicable to simultaneously locking or unblock the button and fix and the fixed establishment of unblock to bayonet circuit breaker, and then make the structure simplify the most, the very big reduction of assembly degree of difficulty, and occupation space is little, can reserve more spaces and arrange other parts, makes and distributes more rationalize between the part, is applicable to miniaturized circuit breaker.

Drawings

FIG. 1 is a schematic perspective view of a connecting member according to a first embodiment;

FIG. 2 is a perspective view of another connector according to one embodiment;

fig. 3 is a schematic view showing the assembly of the button and the locking member in the locking mechanism of the circuit breaker according to the second embodiment;

fig. 4 is a schematic structural view showing a locking mechanism of a circuit breaker according to a second embodiment;

fig. 5 is a schematic structural diagram of a locking mechanism of the circuit breaker after the circuit breaker is assembled according to the second embodiment;

fig. 6 is a schematic view showing the assembly of a button and a fixing member in the fixing mechanism of the circuit breaker according to the third embodiment;

fig. 7 is a schematic structural diagram of a fixing mechanism of the circuit breaker after the circuit breaker is assembled in the third embodiment;

fig. 8 is a schematic structural view illustrating a state in which a fixing mechanism of the circuit breaker according to the third embodiment is detached from a cabinet;

fig. 9 is a perspective view illustrating the assembly of the locking member, the fixing member and the button in the mounting assembly of the circuit breaker according to the fourth embodiment;

FIG. 10 is an exploded view of the structure of FIG. 9;

fig. 11 is a schematic structural view illustrating a mounting assembly of the circuit breaker according to the fourth embodiment;

fig. 12 is a schematic external view of a circuit breaker having a mounting assembly of the circuit breaker according to the fourth embodiment;

fig. 13 is a schematic diagram of a circuit breaker with a mounting assembly of the circuit breaker in a fourth embodiment assembled into a cabinet.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Example one

Referring to fig. 1, the present embodiment provides a connecting member 10, which includes a first arm 11 and a second arm 12 connected to each other, and a rotation connecting portion is disposed between the first arm 11 and the second arm 12, in this embodiment, the rotation connecting portion is a shaft hole 13, but in other embodiments, the rotation connecting portion is not limited thereto, and the rotation connecting portion may also be a hinge shaft or the like. The first arm 11 is formed with a first protrusion 111, the first arm 11 is integrally extended with an elastic arm 14, the extending direction of the elastic arm 14 deviates from the first protrusion 111, for example, in fig. 1, the first protrusion 111 extends leftwards, and the elastic arm 14 extends rightwards. The second arm 12 is formed with a second protrusion 121, and the direction of the second protrusion 121 is the same as the extending direction of the elastic arm, i.e. the second protrusion extends to the right in fig. 1.

Specifically, in this embodiment, the connecting member 10 is made of a plastic member, and can be integrally formed by injection molding, so that the manufacturing is simple. Of course, in other embodiments, the material of the connecting member 10 may not be limited thereto.

Specifically, fig. 2 also shows a connector 10, and in the connector 10 shown in fig. 1 and 2, the structures and the connection relations of the components are the same, but the difference is that: the angles of the first arm 11 and the second arm 12 of the connecting element 10 in fig. 1 and 2 are different, and the length of the second arm 12 of the connecting element 10 in fig. 1 is shorter than that of the second arm 12 of the connecting element 10 in fig. 2.

Example two

Referring to fig. 3 and 4, the present embodiment provides a locking mechanism of a circuit breaker, including a circuit breaker housing 300, a button 100 and a locking member 20, where the circuit breaker housing 300 is provided with a button insertion opening (not shown), the button 100 is inserted into the circuit breaker housing 300 through the button insertion opening in a telescopic manner, the locking member 20 is the connecting member 10 in the first embodiment, and specifically, the connecting member 10 in the first embodiment is adopted, that is, the first arm 21, the second arm 22, the first boss 211, the second boss 221, the shaft hole 23 and the elastic arm 24 of the locking member 20 are respectively the first arm 11, the second arm 12, the first boss 111, the second boss 121, the shaft hole 13 and the elastic arm 14 of the connecting member 10 in fig. 1; but is not limited thereto. Locking piece 20 passes through the shaft hole 23 and articulates in circuit breaker casing 300, and is concrete, be equipped with a articulated shaft 3001 in circuit breaker casing 300, on articulated shaft 3001 was located to the shaft hole 23 cover of locking piece 20, and then realized the articulated setting of locking piece 20.

The circuit breaker housing 300 is provided with a yielding hole 3002 corresponding to the second boss 221 of the locking member 20, the elastic arm 24 abuts against the inner wall of the circuit breaker housing 300 to apply an elastic force pushing the button 100 against the first boss 211 of the locking member 20, and the second boss 221 of the locking member 20 extends out of the circuit breaker housing 300 through the yielding hole 3002, as shown in fig. 4.

The end of the first boss 211 facing the button insertion opening defining the locking member 20 is a front end, and the button 100 is provided with a limit step 1001 corresponding to the front end of the first boss 211 of the locking member 20. Specifically, as shown in fig. 4, the insertion opening of the push button 100 is located above the first boss 211 of the locking member 200, the front end of the first boss 211 is the upper end surface in fig. 4, and the push button 100 is provided with a limiting step 1001 above the first boss 211 of the locking member 20, i.e., the limiting step 1001 is located above the first boss 211.

When the circuit breaker is not assembled in place, the first boss 211 of the locking member 20 always abuts against the button 100 under the action of the elastic arm 24, that is, as shown in fig. 4, when the button 100 is pressed, the limiting step 1001 on the button is abutted by the first boss 211 of the locking member 20 and cannot be normally pressed, so that the safety is guaranteed. When the circuit breaker is assembled in place, as shown in fig. 5, the second boss 221 of the locking member 20 is pressed down by the cabinet 1, and the second boss 221 of the locking member 20 is pressed down to swing the locking member 20 at the hinge point, as shown in fig. 5, to overcome the elastic force of the elastic arm to swing clockwise, the clockwise swing of the locking member 20 drives the first boss 211 to disengage from the button 100, and the limit step 1001 on the button 100 loses the abutting limitation of the first boss 211 of the locking member 20, so that the normal pressing operation of the button 100 can be realized.

The connecting piece 10 through an organic whole connection realizes locking or unblock button 100, makes the structure simplify the most, and the very big reduction of assembly degree of difficulty, and occupation space is little, can reserve more spaces and arrange other parts, makes to distribute more rationalize between the part, is applicable to miniaturized circuit breaker.

Specifically, in the present embodiment, the elastic arm 24 of the locking member 20 is disposed at an end corner of the circuit breaker housing 300, as shown in fig. 4, so that the space inside the circuit breaker housing 300 is fully utilized, and more space can be made free for arranging other components, so that the structure is more compact and reasonable.

Specifically, in the present embodiment, the locking member 20 is hinged by the shaft hole 23 and the hinge shaft 3001 in the circuit breaker housing 300. Of course, in other embodiments, the shaft hole 23 of the locking member 20 may be replaced by a hinge shaft or other rotation connection portion capable of achieving the hinge.

Further, in this embodiment, the second protrusion 221 of the locking member 20 has an insertion surface 222 facing the cabinet 1 when the circuit breaker is inserted, and the insertion surface 222 is an inclined surface. The insertion surface 222 forms a guide structure when making contact with the cabinet 1, so that the second projection 22 of the locking member 20 can be more smoothly retracted and is less likely to be caught.

The embodiment also provides a circuit breaker, which comprises the locking mechanism of the circuit breaker.

EXAMPLE III

Referring to fig. 6 to 8, the present embodiment provides a fixing mechanism of a circuit breaker, including a circuit breaker housing 300, a button 100 and a fixing element 30, where the circuit breaker housing 300 is provided with a button insertion opening (not shown), the button 100 is inserted into the circuit breaker housing 300 through the button insertion opening in a telescopic manner, the fixing element 30 is the connecting element 10 in the first embodiment, and specifically is the connecting element 10 shown in fig. 2 in the first embodiment, that is, a first arm 31, a second arm 32, a first boss 311, a second boss 321, an axial hole 33 and an elastic arm 34 of the fixing element 30 are respectively a first arm 11, a second arm 12, a first boss 111, a second boss 121, an axial hole 13 and an elastic arm 14 of the connecting element 10 in fig. 2; but is not limited thereto.

The fixing member 30 is hinged in the circuit breaker housing 300 through the shaft hole 33, specifically, a hinge shaft 3001 is arranged in the circuit breaker housing 300, and the shaft hole 33 of the fixing member 30 is sleeved on the hinge shaft 3001, so as to realize the hinged arrangement of the fixing member 30.

The circuit breaker case 300 is provided with a hole 3003 corresponding to the second boss 321 of the fixing member 30, the elastic arm 34 abuts against the inner wall of the circuit breaker case 300 and applies an elastic force pushing the button to the first boss of the fixing member 30, and the second boss 321 of the fixing member 30 extends out of the circuit breaker case 300 through the hole 3003, as shown in fig. 7.

The end of the first boss 311 of the fixing member 30 away from the button insertion opening is defined as the rear end, and the button 100 is provided with a limit step 1002 corresponding to the rear end of the first boss 311 of the fixing member 30. Specifically, as shown in fig. 7, the button insertion opening is located above the first boss 311, the rear end of the first boss 311 is the lower end surface in fig. 7, and the button 100 is provided with a limiting step 1002 below the first boss 311 of the fixing member 30, that is, the limiting step 1002 is located below the first boss 311.

In the process of installing the breaker into the cabinet 1, the second boss 321 of the fixing member 30 is pressed down by the cabinet 1, so that the breaker can be smoothly installed, after the installation is completed, the cabinet 1 is provided with the through hole 2 corresponding to the second boss 321 of the fixing member 30, the second boss 321 of the fixing member 30 loses the pressing of the cabinet 1 and is popped up again and clamped into the through hole 2 on the cabinet 1, the assembly is completed, and at the moment, the breaker cannot be normally pulled out; when the circuit breaker needs to be pulled out, the button 100 is pulled outwards, the limiting step 1002 on the button 100 is abutted to the rear end of the first boss 311 of the fixing piece 30, the button 100 is pulled continuously at the moment, the first boss 311 of the fixing piece 30 can be outwards removed by moving the limiting step 1002, the fixing piece 30 swings against the elastic force of the elastic support arm 34, and swings clockwise on the basis of fig. 7 as shown in fig. 8, so that the second boss 321 of the fixing piece 30 retracts for a certain distance to be separated from the through hole 2 on the cabinet 1, the circuit breaker is unlocked from the cabinet 1, and the circuit breaker can be easily pulled out from the cabinet 1.

The connecting piece 10 through an organic whole connection realizes fixing and unblock the circuit breaker, makes the structure simplify the most, and the very big reduction of the assembly degree of difficulty, and occupation space is little, can reserve more spaces and arrange other parts, makes to distribute more rationalize between the part, is applicable to miniaturized circuit breaker.

Specifically, in the present embodiment, the elastic arm 34 of the fixing member 30 is disposed at an end corner of the circuit breaker housing 300, so that the space inside the circuit breaker housing 300 is fully utilized, and more space can be made free for arranging other components, so that the structure is more compact and reasonable.

Specifically, in this embodiment, the hinge of the fixing member 30 is configured to be achieved by the shaft hole 33 on the fixing member being sleeved with the hinge shaft 3001 in the circuit breaker housing 300. Of course, in other embodiments, the shaft hole 33 of the fixing member 30 may be replaced by a hinge shaft or other rotation connection part capable of realizing the hinge.

Further, in this embodiment, the second projection 321 of the fixing member 30 has an insertion surface 322 facing the cabinet 1 when the circuit breaker is inserted, and the insertion surface 322 is an inclined surface. When the fixing member contacts with the cabinet, the insertion surface 322 forms a guiding structure, so that the second boss 321 of the fixing member 30 can be retracted more smoothly and is not easy to be jammed.

The embodiment also provides a circuit breaker, which comprises the fixing mechanism of the circuit breaker.

Example four

Referring to fig. 9 to 12, the present embodiment provides a mounting assembly of a circuit breaker, including a circuit breaker housing 300, a button 100, a locking member 20 and a fixing member 30, where the circuit breaker housing 300 is provided with a button insertion opening (not shown), the button 100 is inserted into the circuit breaker housing 300 through the button insertion opening in a telescopic manner, the locking member 20 and the fixing member 30 are both the connecting member 10 described in the first embodiment, specifically, the locking member 20 adopts the connecting member 10 shown in fig. 1 in the first embodiment, that is, the first arm 21, the second arm 22, the first boss 211, the second boss 221, the shaft hole 23 and the elastic arm 24 of the locking member 20 are the first arm 11, the second arm 12, the first boss 111, the second boss 121, the shaft hole 13 and the elastic arm 14 of the connecting member 10 in fig. 1, respectively; the fixing member 30 adopts the connecting member 10 shown in fig. 2 in the first embodiment, that is, the first arm 31, the second arm 32, the first boss 311, the second boss 321, the shaft hole 33 and the elastic arm 34 of the fixing member 30 are respectively the first arm 11, the second arm 12, the first boss 111, the second boss 121, the shaft hole 13 and the elastic arm 14 of the connecting member 10 in fig. 2; but is not limited thereto.

The locking piece 20 and the fixing piece 30 are hinged in the shell of the circuit breaker through shaft holes; specifically, be equipped with an articulated shaft 3001 in the circuit breaker casing 300, the articulated shaft 3001 is all located to the shaft hole 23 of locking piece 20 and the shaft hole 33 of mounting 30 on, and then realizes the articulated setting of locking piece 20 and mounting 30.

The breaker housing 300 is provided with a first recess 3002 corresponding to the second protrusion 221 of the locking member 20 and a second recess 3003 corresponding to the second protrusion 321 of the fixing member 30.

The elastic arm 24 of the locking member 20 abuts against the inner wall of the circuit breaker housing 300 to apply an elastic force to the first protrusion 211 of the locking member 20 to abut against the button 100, and the second protrusion 221 of the locking member 20 extends out of the circuit breaker housing 300 through the first relief hole 3002.

Similarly, the elastic arm 34 of the fixing member 30 abuts against the inner wall of the circuit breaker housing 300 to apply an elastic force to the first boss 311 of the fixing member 30 to abut against the button 100, and the second boss 321 of the fixing member 30 extends out of the circuit breaker housing 300 through the second relief hole 3003.

Defining one end of the first boss facing the button insertion opening as a front end and one end deviating from the button insertion opening as a rear end; the button 100 is provided with a first limit step 1001 corresponding to the front end of the first boss 211 of the locking member 20 and a second limit step 1002 corresponding to the rear end of the first boss 311 of the fixing member 30. Specifically, as shown in fig. 11, the first boss 211 of the locking member 20 and the first boss 311 of the fixing member 30 are almost overlapped, and therefore, the orientations are the same, and the button insertion ports are both located above the first boss 211 of the locking member 20 and the first boss 311 of the fixing member 30, and therefore, the front ends of the first boss 211 of the locking member 20 and the first boss 311 of the fixing member 30 are upper end surfaces, and the rear ends thereof are lower end surfaces. The first limit step 1001 is located above the first boss 211 of the locking member 20, and the second limit step 1002 is located below the first boss 311 of the fixing member 30.

As shown in fig. 13, in the process of installing the circuit breaker into the cabinet, the second boss 321 of the fixing member 30 is pressed down by the cabinet 1 during the process of installing the circuit breaker into the cabinet, so that the circuit breaker can be installed smoothly, in this process, the second boss 221 of the locking member 20 is located behind the second boss 321 of the fixing member 30, and therefore, the circuit breaker is not pressed down, the first boss 221 of the locking member 20 always contacts the button 100 under the action of the elastic arm 24, and when the button 100 is pressed, the first limit step 1001 thereon is pressed against by the first boss 211 of the locking member 20 and cannot be pressed normally, thereby ensuring the safety.

When the circuit breaker is assembled in place, the second boss 221 of the locking member 20 is pressed down by the cabinet 1, the second boss 221 of the locking member 20 is pressed down to drive the first boss 211 of the locking member 20 to overcome the elastic force of the elastic support arm 24 and separate from the button 100, and the first limiting step 1001 on the button 100 loses the abutting pressure of the first boss 211 of the locking member 20, so that the normal pressing operation can be realized.

Meanwhile, the cabinet 1 is provided with a through hole 2 corresponding to the second boss 321 of the fixing member 30, the second boss 321 of the fixing member 30 loses the abutting pressure of the cabinet 1 and is popped out again and clamped into the through hole 2 of the cabinet 1 to complete the assembly, and the breaker cannot be pulled out normally at this time; when the circuit breaker needs to be pulled out, the button 100 is pulled outwards, the second limiting step 1002 on the button 100 is abutted to the rear end of the first boss 311 of the fixing piece 30, the button 100 continues to be pulled at the moment, the first boss 311 of the fixing piece 30 can be outwards removed by moving the second limiting step 1002, the fixing piece 30 swings by overcoming the elastic force of the elastic support arm 34, the second boss 321 of the fixing piece 30 retracts for a certain distance to be separated from the through hole 2 on the cabinet 1, the circuit breaker is unlocked from the cabinet 1, and the circuit breaker can be easily pulled out from the cabinet 1.

Specifically, in this embodiment, the shaft hole 23 of the locking member 20 and the shaft hole 33 of the fixing member 30 are both sleeved on the same hinge shaft 3001, so as to realize coaxial hinge setting, and the locking member 20 and the fixing member 30 can be formed to be arranged side by side, thereby saving layout space. Meanwhile, the first arm 21 of the locking member 20 and the first arm 31 of the fixing member 30 substantially coincide on a vertical projection plane (i.e., a vertical projection plane in the axial direction of the hinge shaft 3001), that is, the elastic arm 24 of the locking member 20 and the elastic arm 34 of the fixing member 30 simultaneously abut against a planar inner wall of the circuit breaker housing 300, and the first boss 211 of the locking member 20 and the first boss 311 of the fixing member 30 simultaneously abut against a planar side wall of the button 100, without additionally providing different fitting structures for respective fitting.

More specifically, in order to prevent the second projection 221 of the locking member 20 and the second projection 321 of the fixing member 30 from interfering with each other, in the present embodiment, the distance between the second projection of the locking member and the second projection of the fixing member is lengthened, and the locking member 20 and the fixing member 30 are respectively implemented by using the connecting member 10 shown in fig. 1 and 2 in the first embodiment. The included angle between the first arm 21 and the second arm 22 of the locking member 20 is smaller than the included angle between the first arm 31 and the second arm 32 of the fixing member 30, and in the case that the first arm 21 of the locking member 20 substantially coincides with the first arm 31 of the fixing member 30, the second arm 22 of the locking member 20 and the second arm 32 of the fixing member 30 are staggered on the vertical projection plane in the axial direction of the hinge shaft 3001, so that the distance between the second projection 221 of the locking member 20 and the second projection 321 of the fixing member 30 is extended. Of course, since the locking member 20 and the fixing member 30 are arranged side by side, the second projection 221 of the locking member 20 and the second projection 321 of the fixing member 30 are also offset by a certain distance, and in other embodiments, the perpendicular projection planes of the second arm 22 of the locking member 20 and the second arm 32 of the fixing member 30 in the axial direction of the hinge shaft 3001 may also be overlapped.

Specifically, in the present embodiment, the elastic arm 34 of the fixing element 30 and the elastic arm 24 of the locking element 20 are both disposed at the corner of the circuit breaker housing 300, so that the space inside the circuit breaker housing 300 is fully utilized, and more space can be made free for arranging other components, so that the structure is more compact and reasonable.

Specifically, in the present embodiment, the hinge connection between the fixing member 30 and the locking member 20 is realized by the shaft hole of the fixing member being sleeved with the hinge shaft 3001 in the circuit breaker housing 300. Of course, in other embodiments, the shaft hole 23 of the locking member 20 or the shaft hole 33 of the fixing member 30 may be replaced by a hinge shaft or other rotation connection portion capable of achieving the hinge. If the rotating connecting part of the fixing piece is the hinge shaft and the rotating connecting part of the locking piece is the shaft hole, during assembly, the shaft hole of the locking piece is firstly sleeved on the hinge shaft of the fixing piece, and then the hinge shaft of the fixing piece is rotatably assembled in the shell of the circuit breaker, so that the fixing piece and the locking piece can be arranged side by side; alternatively, the fixing member and the locking member may be provided separately, that is, not provided side by side.

Further, in this embodiment, the second projection 221 of the locking member 20 and the second projection 321 of the fixing member 30 each have an insertion surface facing the cabinet 1 when the circuit breaker is inserted, that is, the insertion surface 222 of the locking member 20 and the insertion surface 322 of the fixing member 30. The insertion surfaces 222 and 322 are both inclined surfaces. When the locking member contacts the cabinet 1, the insertion surfaces 222 and 322 form a guide structure, so that the second bosses 221 and 321 of the locking member 20 and the fixing member 30 can be retracted more smoothly and are less likely to be caught.

Further, in this embodiment, a connection convex ring for linkage connection with the moving contact of the circuit breaker is disposed on the button 100, and the connection convex ring protrudes from the outer surface of the button 100 to serve as the second limiting step 1002. During assembly, a U-shaped rod serving as a linkage component is arranged in the through hole of the connecting convex ring in a penetrating mode, and the button 100 is linked with a moving contact of the driving circuit breaker through transmission of the U-shaped rod. Meanwhile, the connecting convex ring is also used as a second limit step 1002 for matching with the first boss 311 of the fixing member 30; make full use of structure, structural design is ingenious, the structural complexity of reduction button 100 that can be fine.

Still further, connect the bulge loop and still extend to the position that corresponds locking piece 20's first boss 211 rear end, locking piece 20's first boss 211 is spacing jointly by first spacing step 1001 and connection bulge loop, and on the one hand, satisfied the connection of connecting the bulge loop with the U type pole, and on the other hand carries on spacingly with the front and back end of locking piece 20's first boss 211, can fix a position locking piece 20's first boss 211 better, and the assembly precision is better.

In the scheme, the locking element 20 and the fixing element 30 are arranged side by side, and the second limiting step 1002 is used for being linked with a moving contact of a driving circuit breaker and matched with the fixing element 30; the functional parts can be integrated in the area on one side of the button 100, so that more space can be reserved for the button to be matched with other parts, and the layout space of the circuit breaker is greatly optimized.

The embodiment also provides a circuit breaker, which comprises the installation assembly of the circuit breaker.

The connecting piece 10 that this scheme provided can be applicable to the locking mechanical system who locks or unblock to button 100 simultaneously and fix the fixed establishment who unlocks and carry out bayonet circuit breaker, and then makes the structure simplify the most, and the very big reduction of the assembly degree of difficulty, and occupation space is little, can leave more spaces and arrange other parts, makes and distributes more rationalize between the part, is applicable to miniaturized circuit breaker.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (13)

1. A connector, characterized by: including the first support arm and the second support arm that link to each other, be equipped with between first support arm and the second support arm and rotate connecting portion, be formed with first boss on the first support arm, an organic whole extends flexible support arm on the first support arm, the extending direction of elasticity support arm deviates from first boss, be formed with the second boss on the second support arm, the direction of second boss is the same with the extending direction of elasticity support arm.

2. The utility model provides a locking mechanical system of circuit breaker, includes circuit breaker casing, button and locking piece, the button inserted hole has been seted up on the circuit breaker casing, the button is through inserting of the scalable activity of button inserted hole locate circuit breaker casing on its characterized in that: the locking piece is the connecting piece of claim 1, the locking piece is hinged in the circuit breaker shell through a rotary connecting part, the circuit breaker shell is provided with a yielding hole corresponding to the second boss of the locking piece, the elastic support arm props against the inner wall of the circuit breaker shell to apply elastic force which is pressed against the button to the first boss of the locking piece, and the second boss of the locking piece extends out of the circuit breaker shell through the yielding hole; the first boss of definition locking piece is the front end at the one end towards the button inserted hole, be equipped with the spacing step of the first boss front end of a corresponding locking piece on the button.

3. The circuit breaker locking mechanism of claim 2, wherein: the rotation connecting portion of locking piece is the shaft hole, be equipped with an articulated shaft in the circuit breaker casing, the axle hole cover of locking piece is located on the articulated shaft, and then realizes the articulated setting of locking piece.

4. The circuit breaker locking mechanism of claim 2, wherein: the second boss of the locking piece is provided with an insertion surface which is opposite to the cabinet when the circuit breaker is inserted, and the insertion surface is an inclined surface.

5. The utility model provides a fixed establishment of circuit breaker, includes circuit breaker casing, button and mounting, the button inserted hole has been seted up on the circuit breaker casing, the button is through inserting of the scalable activity of button inserted hole and locating circuit breaker casing on its characterized in that: the fixing part is the connecting part as claimed in claim 1, the fixing part is hinged in the breaker shell through the rotary connecting part, the breaker shell is provided with a yielding hole corresponding to the second boss of the fixing part, the elastic support arm is abutted against the inner wall of the breaker shell to apply elastic force which pushes the first boss of the fixing part against the button, and the second boss of the fixing part extends out of the breaker shell through the yielding hole; the first boss of definition mounting is the rear end in the one end that deviates from the button inserted hole, be equipped with the spacing step of the first boss rear end of a corresponding mounting on the button.

6. The circuit breaker securing mechanism of claim 5, wherein: the rotation connecting portion of mounting is the shaft hole, be equipped with an articulated shaft in the circuit breaker casing, the axle hole cover of mounting is located on the articulated shaft, and then realizes the articulated setting of mounting.

7. The circuit breaker securing mechanism of claim 5, wherein: the second boss of the fixing piece is provided with an insertion surface which is opposite to the cabinet when the breaker is inserted, and the insertion surface is an inclined surface.

8. The utility model provides an installation component of circuit breaker, includes circuit breaker casing, button, locking piece and mounting, the button inserted hole has been seted up on the circuit breaker casing, the button is through inserting of the scalable activity of button inserted hole locate circuit breaker casing on its characterized in that: the locking piece and the fixing piece are both the connecting piece as claimed in claim 1, and are hinged in the circuit breaker shell through a rotary connecting part; a first abdicating hole corresponding to the second boss of the locking piece and a second abdicating hole corresponding to the second boss of the fixing piece are formed in the breaker shell;

the elastic support arm of the locking piece props against the inner wall of the shell of the circuit breaker to apply elastic force which pushes the button against the first boss of the locking piece, and the second boss of the locking piece extends out of the shell of the circuit breaker through the first abdicating hole;

the elastic support arm of the fixing piece is abutted against the inner wall of the breaker shell to apply an elastic force which is abutted against the button to the first boss of the fixing piece, and the second boss of the fixing piece extends out of the breaker shell through the second position slotted hole;

defining one end of the first boss facing the button insertion opening as a front end and one end deviating from the button insertion opening as a rear end; the button is provided with a first limiting step corresponding to the front end of the first boss of the locking piece and a second limiting step corresponding to the rear end of the first boss of the fixing piece.

9. The circuit breaker mounting assembly of claim 8, wherein: the rotation connecting portion of locking piece and the rotation connecting portion of mounting are the shaft hole, be equipped with an articulated shaft in the circuit breaker casing, the articulated shaft is all located to the shaft hole of locking piece and the shaft hole of mounting on the axle hole, the coincidence is gone up at the ascending vertical projection face of axial direction of articulated shaft to the first support arm of locking piece and mounting.

10. The circuit breaker mounting assembly of claim 8, wherein: the second boss of locking piece and the second boss of mounting all have one and just to the inserting face of rack when the circuit breaker inserts, the inserting face is the inclined plane.

11. The circuit breaker mounting assembly of claim 8, wherein: the button is provided with a connecting convex ring which is used for being connected with a moving contact of the circuit breaker in a linkage mode, and the connecting convex ring protrudes out of the outer surface of the button and serves as the second limiting step.

12. The circuit breaker mounting assembly of claim 11, wherein: the connecting convex ring also extends to the position corresponding to the rear end of the first boss of the locking piece, and the first boss of the locking piece is limited by the first limiting step and the connecting convex ring together.

13. A circuit breaker, characterized by: mounting assembly comprising at least a locking mechanism for a circuit breaker according to any of the preceding claims 2-4 or a securing mechanism for a circuit breaker according to any of the preceding claims 5-7 or a circuit breaker according to any of the preceding claims 8-12.

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