CN218160232U - Interlocking device - Google Patents

Abstract

The utility model discloses an interlocking device, including casing, interlocking handle and interlocking board. Use the utility model provides an interlock has realized the second circuit breaker switching-on back, when first circuit breaker closes a floodgate, and makes the second circuit breaker open a floodgate. Similarly, after the first breaker is closed, the second breaker cannot be closed. Therefore, the utility model discloses an when interlock is applied to two way mains operated of activestandby, can realize making another way disconnection power supply when mains operated wherein all the way, or another way power supply can not close a floodgate power supply when mains operated all the way to the security performance among the activestandby circuit power supply process has been improved.

Description

Interlocking device

Technical Field

The utility model relates to a circuit breaker technical field, in particular to interlock.

Background

In order to ensure the power supply safety or improve the continuous power supply capacity, the main and standby power supplies are used for supplying power in many occasions, one power supply is not allowed to supply power while the other power supply is not allowed, or the other power supply is required to be simultaneously disconnected while the other power supply supplies power, and if the two power supplies supply power simultaneously, a short-circuit accident can occur, so that the potential safety hazard is very large.

Therefore, how to improve the safety performance of the main/standby circuit in the power supply process becomes a technical problem to be urgently solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides an interlocking device to improve the security performance among the activestandby circuit power supply process.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides an interlock for between two adjacent circuit breakers, interlock includes casing, interlocking handle and interlocking board:

the shell is used for being installed between two adjacent circuit breakers, and the two circuit breakers are a first circuit breaker and a second circuit breaker respectively;

the interlocking handle is arranged on the shell and is provided with a first position and a second position; the interlocking handle is provided with a first toggle piece and a transmission piece which are in transmission connection with the interlocking plate, and the transmission piece can be connected with the handle of the first circuit breaker so as to drive the interlocking handle to move between a first position and a second position along with the handle of the first circuit breaker in a switching-on mode, wherein the interlocking handle is located at the first position when the handle of the first circuit breaker is in a switching-off mode, and the interlocking handle is located at the second position when the handle of the first circuit breaker is in a switching-off mode;

the interlocking plate is rotatably arranged in the shell and is provided with a third position and a fourth position; the interlocking plate is provided with a second stirring piece and a locking piece, the locking piece is in transmission connection with the lock catch of the second circuit breaker, the second stirring piece is in transmission connection with the first stirring piece so as to drive the interlocking plate to be switched between a third position and a fourth position, and when the interlocking plate is at the third position, the locking piece prevents the lock catch and the jump buckle of the second circuit breaker from being occluded or drives the lock catch and the jump buckle of the second circuit breaker to be disengaged or not occluded; when the interlocking plate is at the fourth position, the lock catch and the jump catch of the second breaker can be occluded; when the interlocking handle is at the first position or moves from the second position to the first position, the interlocking plate is at the third position; the interlock plate may be in a fourth position when the interlock handle is in the second position.

The utility model discloses in some possible embodiments, the interlocking handle includes that the rotatable setting is in the inside first rotating part of casing, and set up the handle on first rotating part, and first stirring piece sets up on the global of first rotating part, and the driving medium sets up on the terminal surface of handle towards first circuit breaker, and the handle of first circuit breaker is provided with the driving groove towards the terminal surface of driving medium.

The utility model discloses in some possible embodiments, first rotating part is rotatable through first pivot to be set up in the inside of casing, has first bearing between first pivot and the first rotating part.

In some possible embodiments of the present invention, the first toggle member includes a protrusion extending from a circumferential surface of the first rotating portion in a radial direction of the first rotating portion and a recess recessed from the circumferential surface of the first rotating portion in a direction toward a rotation center of the first rotating portion, and when the protrusion is engaged with the second toggle member, the interlocking handle is located at the first position; when the recessed portion is engaged with the second toggle member, the interlock handle is located at the second position.

In some possible embodiments of the present invention, the included angle α between the protruding portion and the recessed portion is less than or equal to 1/2 π.

In some possible embodiments of the present invention, the transmission member is a prism structure.

The utility model discloses in some possible embodiments, the interlocking board includes that rotatable setting is in the inside second rotating part of casing, and the second is dialled and is set up on the global of second rotating part, and the locking piece sets up on the terminal surface that the second rotating part is relative with the second circuit breaker to stretch out the casing, and the second is dialled and the both sides of the centre of rotation of locking piece split second rotating part.

The utility model discloses in some possible embodiments, the second rotating part passes through the rotatable setting of second pivot between the first inside wall of casing and second inside wall, has the second bearing between second pivot and the second rotating part.

In some possible embodiments of the present invention, the locking member is a locking bar, and an arc-shaped hole is disposed at a position of the housing corresponding to the locking member to accommodate the movement of the locking bar inside the housing; and a lock hole matched with the lock rod is formed in the lock catch of the second circuit breaker.

The utility model discloses in some possible embodiments, still including setting up the elasticity portion between casing and interlocking board.

The utility model discloses in some possible embodiments, the elasticity portion is the torsional spring, and the middle part of torsional spring sets up on the casing, the first end of torsional spring and the lateral wall butt of interlocking board, and the second end of torsional spring is located the casing.

The utility model discloses in some possible embodiments, be provided with the reference column on the casing, the second end of torsional spring is located the reference column.

In some possible embodiments of the present invention, the first side wall of the housing has a shape that matches a shape of a side wall of the first circuit breaker; the shape of the second side wall of the housing is matched with the shape of the side wall of the second breaker.

In some possible embodiments of the present invention, the housing includes a base and an upper cover that is joined to the base.

In some possible embodiments of the present invention, the base is perpendicular to the joint surface of the upper cover and the rotation center of the interlocking handle.

The utility model discloses in some possible embodiments, the structure of first circuit breaker and second circuit breaker is the same.

According to the above technical scheme, use the utility model provides a during interlock, install the casing between first circuit breaker and second circuit breaker, wherein, the driving medium is connected with the handle transmission of first circuit breaker, and the locking piece is connected with the hasp transmission of second circuit breaker. First circuit breaker and second circuit breaker are in the separating brake state, and when needing first circuit breaker to close a floodgate, the handle of operation first circuit breaker is located the position of closing a floodgate, the handle of first circuit breaker passes through the driving medium and drives the interlocking handle and rotate, because first piece and the transmission of second piece are dialled and are connected, therefore, the interlocking board is followed the interlocking handle and is rotated, and switch over to the third position, and the locking piece prevents the hasp and the trip interlock of second circuit breaker this moment, the unable combined floodgate of second circuit breaker promptly, thereby first circuit breaker combined floodgate has been realized, and the second circuit breaker can not be closed a floodgate simultaneously. Similarly, when first circuit breaker separating brake, the second circuit breaker combined floodgate, and when needing first circuit breaker combined floodgate, the handle of first circuit breaker passes through the driving medium and drives the interlocking handle and rotate, because first stirring piece and second stir a transmission and connect, consequently, the interlocking board is followed the interlocking handle and is rotated, and switch over to the third position by the fourth position, and the locking piece drives the hasp and the jump knot of second circuit breaker and removes the interlock this moment, second circuit breaker separating brake promptly, thereby first circuit breaker combined floodgate has been realized, and second circuit breaker separating brake. Therefore, the utility model discloses an when interlock is applied to two way mains operated of activestandby, can realize wherein be another way disconnection power supply when mains operated all the way, or another way mains operated disconnection power supply simultaneously when mains operated all the way to the security performance in the activestandby circuit mains operated process has been improved.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. It is obvious that the drawings in the following description are only examples or embodiments of the invention, that for a person skilled in the art, without inventive step, other drawings can be obtained from the provided drawings, and that the invention can also be applied to other similar situations from the provided drawings. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

Fig. 1 is a schematic partial cross-sectional view of an interlock device according to an exemplary embodiment of the present invention;

fig. 2 is a rear perspective view of an interlock device according to an exemplary embodiment of the present invention;

fig. 3 is a perspective view of an interlock device according to an exemplary embodiment of the present invention, with an upper cover hidden when the interlock device is closed;

fig. 4 is a schematic rear view of an interlock device according to an example of the present invention when the interlock device is closed;

fig. 5 is a rear perspective view of an interlock device according to an exemplary embodiment of the present invention when the interlock device is opened;

fig. 6 is a perspective view of the interlock device according to an exemplary embodiment of the present invention, with the upper cover hidden;

fig. 7 is a rear view schematically illustrating an interlock device according to an exemplary embodiment of the present invention when the interlock device is in an open state;

fig. 8 is a schematic perspective view of an interlock device installed between a first circuit breaker and a second circuit breaker according to an example of the present invention;

fig. 9 is a schematic front view of an interlock device installed between a first circuit breaker and a second circuit breaker according to an exemplary embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of an interlock device installed between a first circuit breaker and a second circuit breaker according to an example of the present invention;

fig. 11 is a schematic structural diagram of a first circuit breaker according to an example of the present invention when the first circuit breaker is closed;

fig. 12 is a schematic structural diagram of a second circuit breaker according to an example of the present invention when the second circuit breaker is in an open state;

fig. 13 is a schematic structural diagram of a first circuit breaker according to an example of the present invention when the first circuit breaker is in an open state;

fig. 14 is a schematic structural diagram of a second circuit breaker according to an example of the present invention when the second circuit breaker is closed;

wherein 100 is an interlock device, 200 is a first circuit breaker, 300 is a second circuit breaker;

101 is a shell, 1011 is a base, 1012 is an upper cover, 1013 is an arc hole, 1014 is a positioning column;

102 is an interlocking handle, 1021 is a first toggle piece, 1022 is a transmission piece, 1023 is a first rotating part, 1024 is a holding part, 1025 is a first rotating shaft, 1026 is a first bearing, 1021a is a convex part, and 1021b is a concave part;

103 is an interlocking plate, 1031 is a second toggle piece, 1032 is a locking piece, 1033 is a second rotating part, 1034 is a second rotating shaft, 1035 is a second bearing;

104 is an elastic part, 1041 is a first end, 1042 is a second end;

201 is a handle and 2011 is a transmission groove;

301 is a lock catch, 302 is a jump catch, 3011 is a locking hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. The embodiments described are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The lock catch, the trip catch and the handle are part of parts in the circuit breaker operating mechanism, and when the circuit breaker handle is in a closing process, the trip catch is meshed with the lock catch to realize closing of the circuit breaker and keep the closing state of the circuit breaker. When the breaker is switched on, if the lock catch is pushed to separate the lock catch from the tripping catch, the operating mechanism is tripped, and the breaker is switched off; in the closing process of the circuit breaker, if the lock catch is pushed to prevent the lock catch from being meshed with the tripping buckle, the operating mechanism is tripped, and the circuit breaker cannot be closed. Based on the above principle, the utility model provides an interlock device to improve the security performance among the activestandby circuit power supply process.

Referring to fig. 1 to 14, the present invention discloses an interlock device 100 for use between two adjacent circuit breakers, the interlock device 100 includes a housing 101, an interlock handle 102 and an interlock plate 103, wherein:

the housing 101 is installed between two adjacent circuit breakers, which are a first circuit breaker 200 and a second circuit breaker 300, respectively.

The interlock handle 102 is rotatably provided on the housing 101 and configured with a first position and a second position; the interlock handle 102 has a first toggle member 1021 and a transmission member 1022, the transmission member 1022 being capable of being connected to the handle 201 of the first circuit breaker 200 to move the interlock handle 102 between a first position and a second position, wherein the interlock handle 102 is in the first position when the handle 201 of the first circuit breaker 200 is in the on position and the interlock handle 102 is in the second position when the handle 201 of the first circuit breaker 200 is in the off position.

The interlock plate 103 is rotatably disposed inside the housing 101 and configured with a third position and a fourth position; the interlock plate 103 has a second toggle member 1031 and a locking member 1032, the second toggle member 1031 is in transmission connection with the first toggle member 1021 to drive the interlock plate 103 to switch between the third position and the fourth position, when the interlock plate 103 is at the third position, the locking member 1032 prevents the latch 301 and the trip catch 302 of the second circuit breaker 300 from being engaged, or the locking member 1032 drives the latch 301 and the trip catch 302 of the second circuit breaker 300 to be disengaged or not engaged; when the interlock plate 103 is in the fourth position, the catch 301 and the jumper 302 of the second circuit breaker 300 can be engaged; when the interlocking handle 102 is at the first position or moves from the second position to the first position, the interlocking plate 103 is at the third position; when the interlock handle 102 is in the second position, the interlock plate 103 is in the fourth position;

use the utility model provides a during interlock 100, install casing 101 between first circuit breaker 200 and second circuit breaker 300, wherein, driving medium 1022 is connected with the handle 201 transmission of first circuit breaker 200, and locking piece 1032 is connected with the hasp 301 transmission of second circuit breaker 300. When the second circuit breaker is located at the switching-on position, when the handle 201 of the first circuit breaker 200 rotates toward the switching-on position, as shown in fig. 11, the handle 201 drives the interlock handle 102 to rotate through the transmission member 1022, because the first toggle member 1021 and the second toggle member 1031 are in transmission connection, the interlock plate 103 rotates along with the interlock handle 102 and switches to the third position, and at this time, the locking member 1032 drives the latch 301 and the trip 302 of the second circuit breaker 300 to be disengaged from the engaged state and located at the tripped position, that is, the second circuit breaker 300 is located at the switching-off state, as shown in fig. 12, so that after the second circuit breaker is switched on, the first circuit breaker 200 is switched on, and the second circuit breaker 300 is switched off.

Similarly, when the handle 201 of the first circuit breaker 200 is located at the switching-on position, as shown in fig. 14, the handle 201 drives the interlock handle 102 to rotate through the transmission part 1022, because the first toggle member 1021 and the second toggle member 1031 are in transmission connection, the interlock plate 103 rotates along with the interlock handle 102 and is switched to the third position, and when the handle 301 of the second circuit breaker 300 is switched on, the locking member 1032 drives the latch 301 and the trip catch 302 of the second circuit breaker 300 to be unable to be engaged, that is, the second circuit breaker 300 is unable to be switched on, as shown in fig. 14, thereby realizing that the second circuit breaker 300 cannot be switched on after the first circuit breaker 200 is switched on.

To sum up, when the interlocking device 100 of the present invention is applied to the main and standby power supplies, the first circuit breaker 200 controls one power supply, the second circuit breaker 300 controls the other power supply, the circuit breaker interlocking device 100 is disposed between the first circuit breaker 200 and the second circuit breaker 300, and when the first circuit breaker 200 is switched on, the second circuit breaker 300 is switched off; when first circuit breaker 200 closes a floodgate, second circuit breaker 300 can not close a floodgate to can realize making another way disconnection power supply when power supply wherein all the way, or another way power supply can not close a floodgate power supply when power supply all the way, consequently, adopt the utility model discloses an above-mentioned interlock 100 has improved the security performance of activestandby circuit power supply in-process.

It should be noted that the interlocking device of the present invention has a closing state and an opening state, wherein, in the closing state, the interlocking handle 102 is at the first position, and the interlocking plate 103 is at the third position; in the open state, the interlock plate 103 is in the fourth position when the interlock handle 102 is in the second position.

The interlock handle 102 functions to transmit the force of the handle 201 of the first circuit breaker 200 to the interlock plate 103. In some examples, the interlock handle 102 may include a first rotating portion 1023 rotatably disposed inside the housing 101, and a holding portion 1024 disposed on the first rotating portion 1023, the first toggle member 1021 is disposed on the circumferential surface of the first rotating portion 1023, the transmission member 1022 is disposed on the end surface of the holding portion 1024 facing the first circuit breaker 200, and the end surface of the handle 201 of the first circuit breaker 200 facing the transmission member 1022 is provided with the transmission groove 2011. The transmission member 1022 is inserted into the transmission groove 2011 of the handle 201 of the first circuit breaker 200, so that the interlock handle 102 can move synchronously with the handle 201.

It should be noted that the first rotating portion 1023 may be directly and rotatably disposed between the first inner sidewall and the second inner sidewall of the housing 101, or the first rotating portion 1023 may be rotatably disposed between the first inner sidewall and the second inner sidewall of the housing 101 via other components, for example, the first rotating portion 1023 is rotatably disposed between the first inner sidewall and the second inner sidewall of the housing 101 through the first rotating shaft 1025.

When the first rotating portion 1023 is rotatably disposed in the housing 101 through the first rotation shaft 1025, a first bearing 1026 is disposed between the first rotation shaft 1025 and the first rotating portion 1023. The stability of the rotation process of the first rotating portion 1023 can be improved by providing the first bearing 1026, and at the same time, the friction force of the rotation process of the first rotating portion 1023 can be reduced.

The first toggle member 1021 and the second toggle member 1031 are in transmission connection to transmit torque, and the transmission form of the first toggle member 1021 and the second toggle member 1031 can be gear transmission, belt transmission, chain transmission, cam slider transmission, and the like. Any form may be used as long as the rotation of the first rotation part 1023 can be transmitted to the interlock plate 103. In the example of the present invention, the projection 1021a having a peripheral surface extending in the radial direction of the first rotating portion and the depression 1021b having a peripheral surface depressed in the direction of the rotation center of the first rotating portion from the peripheral surface of the first rotating portion are located at the first position when the projection 1021a is engaged with the second toggle member; when the recessed portion 1021b is engaged with the second toggle member, the interlock handle is in the second position.

The included angle alpha between the convex part 1021a and the concave part 1021b is less than or equal to 1/2 pi.

The transmission member 1022 functions to connect the holding part 1024 to the handle 201 of the first circuit breaker 200, and to restrict relative rotation between the transmission member 1022 and the handle 201, thereby achieving synchronous rotation therebetween. The transmission member 1022 has a cylindrical structure, an elliptic cylindrical structure, or a prismatic structure. When a prism structure, it may be a triangular prism, a quadrangular prism, a pentagonal prism, or the like. In the illustration, the transmission member 1022 is a quadrangular prism structure.

The interlock plate 103 functions to transmit the torque of the interlock handle 102 to the latch 301 of the second circuit breaker 300 to restrict the latch 301 from continuing to move. In some examples, the interlock board 103 includes a second rotating portion 1033 rotatably disposed between the first inner sidewall and the second inner sidewall of the housing 101, the second toggle 1031 is disposed on the peripheral surface of the second rotating portion 1033, the locking member 1032 is disposed on the opposite end surfaces of the second rotating portion 1033 and the second circuit breaker 300, and extends out of the housing 101, and the second toggle 1031 and the locking member 1032 are disposed on both sides of the rotation center of the second rotating portion 1033.

It should be noted that the second toggle part 1031 and the locking part 1032 are respectively disposed on two sides of the rotation center of the second rotating part 1033, and it is understood that the rotation center of the second rotating part 1033 is located in the middle of the interlock plate 103, the second toggle part 1031 is located at one end of the interlock plate 103, and the locking part 1032 is located at the other end of the interlock plate 103. In order to amplify the movement amplitude of the locking member 1032, the distance between the second toggle member 1031 and the rotation center of the second rotation portion 1033 is larger than the distance between the locking member 1032 and the rotation center of the second rotation portion 1033.

In some possible embodiments of the present invention, the second rotating portion 1033 may be directly rotatably disposed between the first inner sidewall and the second inner sidewall of the housing 101, or the second rotating portion 1033 may be rotatably disposed between the first inner sidewall and the second inner sidewall of the housing 101 by other components, for example, the second rotating portion 1033 may be rotatably disposed between the first inner sidewall and the second inner sidewall of the housing 101 through the second rotating shaft 1034. When the second rotating portion 1033 is rotatably disposed on the casing 101 through the second rotating shaft 1034, a second bearing 1035 is disposed between the second rotating shaft 1034 and the second rotating portion 1033. By providing the second bearing 1035, stability during rotation of the second rotating portion 1033 can be improved, and at the same time, friction during rotation of the second rotating portion 1033 can be reduced.

To further enlarge the movement amplitude of the lock member 1032, the rotation radius of the second rotation portion 1033 is larger than that of the first rotation portion 1023.

The locking member 1032 functions to limit the latch 301 of the second circuit breaker 300 to continue to move, the locking member 1032 is a latch, and the housing 101 is provided with an arc-shaped hole 1013 corresponding to the locking member 1032 to accommodate the latch to move inside; the latch 301 of the second circuit breaker 300 is provided with a locking hole 3011 to be engaged with the locking bar. When the interlock device 100 is installed between the first circuit breaker 200 and the second circuit breaker 300, the locking bar is placed in the locking hole 3011 of the locker 301 of the second circuit breaker 300, and thus, the locking bar is held in the locking hole 3011 while moving in the arc-shaped hole 1013.

The elastic portion 104 is disposed inside the housing 101 and connected to the interlock plate 103, so that the interlock plate 103 is always in transmission connection with the interlock handle 102. The elastic portion 104 functions to provide elastic support for the interlock plate 103 so that the interlock plate 103 is always in driving connection with the interlock handle 102, and the elastic portion 104 may be a spring, a torsion spring, or the like. In the example of the present invention, the elastic portion 104 is a torsion spring, the middle portion of the torsion spring is disposed on the housing 101, the first end 1041 of the torsion spring abuts against the sidewall of the interlocking plate 103, and the second end 1042 of the torsion spring is positioned on the housing 101. The second end 1042 of the torsion spring is positioned on the housing 101 through a hole, or in an example of the present invention, a positioning post 1014 is provided on the housing 101 and the second end 1042 of the torsion spring is positioned on the positioning post 1014.

Since the housing 101 is installed between the first circuit breaker 200 and the second circuit breaker 300, the shape of the first sidewall of the housing 101 is identical to the shape of the sidewall of the first circuit breaker 200; the second sidewall of the case 101 has a shape corresponding to that of the sidewall of the second circuit breaker 300. Thus, the first circuit breaker 200 and the second circuit breaker 300 mounted with the interlock device 100 form a structure which is integrated as a whole in appearance.

The housing 101 supports the interlock handle 102 and the interlock plate 103, and the housing 101 includes a base 1011 and an upper cover 1012 joined together with the base 1011, wherein a first mounting portion is provided on the base 1011 and a second mounting portion is provided on the upper cover 1012. The splicing surface of the base 1011 and the cover 1012 is regular in shape, and may also be irregular in shape. When regular in shape, for example, the stitching surfaces are in the same plane. The stitching plane is perpendicular to the center of rotation of the interlock handle 102 or parallel to the center of rotation of the interlock handle 102.

When the two circuit breakers are in the opening state and the first circuit breaker 200 is closed, the handle 201 of the first circuit breaker 200 drives the interlocking handle 102 in the device to rotate in the closing process, the interlocking handle 102 drives the interlocking plate 103 to rotate through the cooperation of the first toggle piece 1021 and the second toggle piece 1031, and the locking piece 1032 on the interlocking plate 103 is lifted to a certain position and is close to the latch 301 of the second circuit breaker 300. After the first circuit breaker 200 is switched on, if the second circuit breaker 300 is switched on, the handle 201 of the second circuit breaker 300 rotates to drive the trip catch 302 to engage with the latch 301 and move along with the mechanism, when the latch 301 contacts with the locking part 1032 of the interlocking plate 103, the latch 301 cannot engage with the trip catch 302 continuously, the operating mechanism of the second circuit breaker 300 is tripped, the second circuit breaker 300 cannot be switched on, and thus, only one circuit breaker is in a switching-on state.

When both the breakers are in the opening state, the first breaker 200 is in the opening state and the interlock plate 103 is in the initial position. After the second circuit breaker 300 is closed, the latch 301 of the second circuit breaker 300 approaches the locking member 1032 of the interlock plate 103. When the first circuit breaker 200 needs to be switched on, in the switching-on process, the handle 201 of the first circuit breaker 200 rotates to drive the interlocking handle 102 of the interlocking device 100 to rotate, so that the interlocking plate 103 is driven to rotate through the cooperation of the first toggle part 1021 and the second toggle part 1031, the locking part 1032 on the interlocking plate 103 pushes the latch 301 of the second circuit breaker 300 to rotate, the latch 301 of the second circuit breaker 300 is separated from the trip 302 of the second circuit breaker 300, the operating mechanism of the second circuit breaker 300 is tripped, the second circuit breaker 300 is switched off, the first circuit breaker 200 is switched on, and only one circuit breaker is ensured to be in the switching-on state.

The utility model also discloses in being adapted to above-mentioned interlock 100's first circuit breaker 200 and second circuit breaker 300, wherein, be provided with on first circuit breaker 200's the handle 201 with driving medium 1022 matched with structure. The second circuit breaker 300 is provided with a locking hole 3011 to be engaged with the second toggle member 1031.

The first circuit breaker 200 and the second circuit breaker 300 have different structures, and the first circuit breaker 200 and the second circuit breaker 300 may have the same structure. The first circuit breaker 200 and the second circuit breaker 300 can be more versatile by adopting the same structural form.

It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. In the case of conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

It should be understood that "system," "device," "unit," and/or "module" as used in the present disclosure is a method for distinguishing different components, elements, parts, portions, or assemblies of different levels. However, other words may be substituted by other expressions if they accomplish the same purpose.

As used herein, the terms "a," "an," "the," and/or "the" are not intended to be inclusive and include the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements. An element defined by the phrase "comprising one of \ 8230: \ 8230:" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

In the description of the embodiments of the present invention, unless otherwise specified, "/" indicates an or meaning, for example, a/B may indicate a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present invention, "a plurality" means two or more than two.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The present invention uses flow charts to illustrate operations performed by a system according to embodiments of the present invention. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, the steps may be processed in reverse order or simultaneously. Meanwhile, other operations may be added to the processes, or a certain step or several steps of operations may be removed from the processes.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and the technical principles applied, and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. The scope of the present invention is not limited to the specific combinations of the above technical features, and other technical features formed by arbitrarily combining the above technical features or their equivalents without departing from the spirit of the present invention. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.

Claims (10)

1. An interlock device for use between two adjacent circuit breakers, the interlock device comprising a housing, an interlock handle and an interlock plate:

the shell is used for being installed between two adjacent circuit breakers, and the two circuit breakers are a first circuit breaker and a second circuit breaker respectively;

the interlocking handle is arranged on the shell and is provided with a first position and a second position; the interlocking handle is provided with a first toggle piece and a transmission piece which are in transmission connection with the interlocking plate, and the transmission piece can be connected with the handle of the first circuit breaker so as to drive the interlocking handle to switch between a first position and a second position along with the handle of the first circuit breaker, wherein when the handle of the first circuit breaker is in a switching-on position, the interlocking handle is in the first position, and when the handle of the first circuit breaker is in a switching-off position, the interlocking handle is in the second position;

the interlocking plate is rotatably arranged in the shell and is provided with a third position and a fourth position; the interlocking plate is provided with a second shifting piece and a locking piece, the locking piece is in transmission connection with the lock catch of the second circuit breaker, the second shifting piece is in transmission connection with the first shifting piece to drive the interlocking plate to be switched between a third position and a fourth position, and when the interlocking plate is at the third position, the locking piece prevents the lock catch and the jump buckle of the second circuit breaker from being occluded or can not be occluded; when the interlocking plate is at the fourth position, the lock catch and the jump catch of the second circuit breaker can be engaged; wherein the interlock plate is in a third position when the interlock handle is in the first position or moved from the second position to the first position; when the interlock handle is in the second position, the interlock plate is in a fourth position.

2. The interlock device according to claim 1, wherein the interlock handle includes a first rotating portion rotatably provided inside the housing, and a holding portion provided on the first rotating portion, the first toggle member is provided on a circumferential surface of the first rotating portion, the transmission member is provided on an end surface of the holding portion facing the first circuit breaker, and a transmission groove is provided on an end surface of the handle of the first circuit breaker facing the transmission member.

3. The interlock device of claim 2, wherein said first rotating portion is rotatably disposed within said housing via a first shaft, said first shaft and said first rotating portion having a first bearing therebetween; and/or

The first toggle piece comprises a convex part extending from the peripheral surface of the first rotating part along the radial direction of the first rotating part and a concave part sinking from the peripheral surface of the first rotating part to the direction of the rotating center of the first rotating part, and when the convex part is matched with the second toggle piece, the interlocking handle is positioned at a first position; when the recess is engaged with the second toggle member, the interlock handle is in a second position.

4. The interlock of claim 3 wherein said convex portion and said concave portion are at an angle α ≦ 1/2 π; and/or

The transmission piece is of a prism structure.

5. The interlock device according to claim 1, wherein the interlock plate includes a second rotating portion rotatably provided inside the housing, the second toggle member is provided on a peripheral surface of the second rotating portion, the locking member is provided on an end surface of the second rotating portion opposite to the second circuit breaker and protrudes out of the housing, and the second toggle member and the locking member are disposed on both sides of a rotation center of the second rotating portion; and/or

The second rotating part passes through the rotatable setting of second pivot in the first inside wall of casing with between the second inside wall, the second pivot with have the second bearing between the second rotating part.

6. The interlock device of claim 5 wherein said locking member is a locking bar and said housing is provided with an arcuate aperture at a location corresponding to said locking member to accommodate movement of said locking bar therein; and a lock hole matched with the lock rod is formed in the lock catch of the second circuit breaker.

7. The interlock of any one of claims 1 to 6 further comprising a resilient portion disposed between said housing and said interlock plate.

8. The interlock of claim 7 wherein said resilient portion is a torsion spring, said torsion spring having a middle portion disposed on said housing, a first end abutting a side wall of said interlock plate, and a second end positioned on said housing.

9. The interlock of claim 8 wherein said housing is provided with a locating post and said second end of said torsion spring is positioned on said locating post.

10. The interlock of claim 1, wherein the first side wall of the housing is shaped to conform to the shape of the side wall of the first circuit breaker; the shape of the second side wall of the shell is matched with that of the side wall of the second breaker; and/or

The shell comprises a base and an upper cover spliced together with the base; and/or

The splicing surface of the base and the upper cover is vertical to the rotating center of the interlocking handle; and/or

The first circuit breaker and the second circuit breaker have the same structure.

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