CN213401063U - Clutch device, operating mechanism and circuit breaker - Google Patents

Abstract

The utility model provides a clutch device, an operating mechanism and a circuit breaker, relating to the technical field of low-voltage electrical appliances, wherein a sector gear and a rotating connecting rod are coaxially arranged and can relatively rotate; the rotating connecting rod is rotationally connected with the locking fastener, and the sector gear is used for being clamped with the locking fastener; one end of the rotating connecting rod is used for being in transmission connection with a moving contact component in the operating mechanism; the sector gear is used for meshing with an automatic component in the operating mechanism; the other end of the rotating connecting rod is in sliding connection with a manual assembly in the operating mechanism through a sliding hole; the manual assembly is abutted with the unlocking part on the lock catch piece; when the manual component is positioned at the locking end, the rotating connecting rod is driven to drive the moving contact component to be switched on; the manual assembly slides from the locking end to the unlocking end, the locking fastener is separated from the sector gear, and the rotating connecting rod drives the moving contact assembly to open. Can be when automatic assembly trouble or became invalid, directly intervene the divide-shut brake of accomplishing the circuit breaker by manual assembly, effectual operating device's stability that has improved.

Description

Clutch device, operating mechanism and circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus switch technical field particularly, relates to an engaging and disengaging gear, operating device and circuit breaker.

Background

With the rapid development of economy, the living standard of people is rapidly improved, and the safety of household electricity utilization is required to be higher. The small-sized circuit breaker can be installed on a terminal distribution line because of small size. Meanwhile, the circuit can be connected, carried and disconnected under the condition of normal or abnormal circuit, and the circuit and the electrical equipment are effectively protected. With the deep research on the circuit breaker, the technology for remotely controlling the opening and closing of the circuit breaker is gradually matured.

The existing circuit breaker has a remote switching-on and switching-off function, and usually a motor is used as a driving source to drive a moving contact to complete the switching-on and switching-off functions, but when the motor is powered off or a fault is encountered, the circuit breaker is difficult to perform the switching-on and switching-off actions, so that the connected circuit has great potential safety hazards.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an engaging and disengaging gear, operating device and circuit breaker to the not enough among the above-mentioned prior art to when solving current circuit breaker motor fault, be difficult to carry out the problem of reliable branch, combined floodgate action.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

the utility model discloses an aspect of the embodiment provides a clutch for operating device, include: the sector gear, the locking fastener and the rotating connecting rod; the sector gear and the rotating connecting rod are coaxially arranged and can rotate relatively; the rotating connecting rod is rotationally connected with the locking fastener, and the sector gear is used for being clamped with the locking fastener; one end of the rotating connecting rod is used for being in transmission connection with a moving contact component in the operating mechanism; the sector gear is used for meshing with an automatic component in the operating mechanism; the other end of the rotating connecting rod is provided with a sliding hole which is used for being in sliding connection with a manual assembly in the operating mechanism through the sliding hole; the manual assembly is abutted with the unlocking part on the lock catch piece, and the sliding hole comprises a locking end and an unlocking end; when the manual component is positioned at the locking end of the sliding hole, the rotating connecting rod is driven to drive the moving contact component to be switched on; the manual component slides from the locking end to the unlocking end, the unlocking part rotates to enable the locking fastener to be separated from the sector gear, and the rotating connecting rod drives the moving contact component to be opened.

Optionally, the unlocking part is an unlocking protrusion, and the unlocking protrusion includes an unlocking inclined wall for abutting against the manual assembly.

Optionally, the clutch device further comprises a resetting elastic member, and the resetting elastic member is abutted to the lock catch member and used for providing a force for resetting the lock catch member.

Optionally, a first tripping protrusion is arranged on the sector gear, and a second tripping protrusion is arranged on the rotating connecting rod, so that when the sector gear is driven by the automatic assembly, the first tripping protrusion abuts against the second tripping protrusion to drive the rotating connecting rod to enable the moving contact assembly to be switched off.

Optionally, a closing stopping protrusion is further disposed on the rotating link, and the closing stopping protrusion is used for being abutted and limited with a housing accommodating the operating mechanism when the moving contact assembly is in a closing state.

Optionally, a retaining spring is further disposed between the sector gear and the rotating link, and one end of the retaining spring abuts against the sector gear and the other end of the retaining spring abuts against the rotating link.

The embodiment of the utility model provides an on the other hand provides an operating device, sets up in the casing of circuit breaker, including automatic subassembly, manual subassembly, movable contact subassembly and any kind of clutch of the aforesaid, automatic subassembly and clutch's sector gear meshing, movable contact subassembly and clutch's the one end transmission of the rotation connecting rod are connected, manual subassembly through the other end sliding connection of slide opening and rotation connecting rod.

Optionally, the automatic assembly comprises a driver and a drive gear set; the driver is in transmission connection with the driving gear set, and the driving gear set comprises a driving full gear and a driving sector gear arranged on the driving full gear; the drive sector gear is adapted to engage the sector gear.

Optionally, the manual assembly comprises a handle and a transmission link; one end of the transmission connecting rod is connected with the handle, the other end of the transmission connecting rod is inserted into the sliding hole of the rotating connecting rod, and the transmission connecting rod is abutted to the unlocking part on the locking piece of the clutch device.

The embodiment of the utility model provides a further aspect provides a circuit breaker, including the casing and set up in the inside above-mentioned operating device of any kind of casing.

The beneficial effects of the utility model include:

the utility model provides a clutch device for operating device, include: the sector gear, the locking fastener and the rotating connecting rod; the sector gear and the rotating connecting rod are coaxially arranged and can rotate relatively; the rotating connecting rod is rotationally connected with the locking fastener, and the sector gear is used for being clamped with the locking fastener; one end of the rotating connecting rod is used for being in transmission connection with a moving contact component in the operating mechanism; the sector gear is used for meshing with an automatic component in the operating mechanism; the other end of the rotating connecting rod is provided with a sliding hole which is used for being in sliding connection with a manual assembly in the operating mechanism through the sliding hole; the manual assembly is abutted with the unlocking part on the lock catch piece, and the sliding hole comprises a locking end and an unlocking end; when the manual component is positioned at the locking end of the sliding hole, the rotating connecting rod is driven to drive the moving contact component to be switched on; the manual component slides from the locking end to the unlocking end, the unlocking part rotates to enable the locking fastener to be separated from the sector gear, and the rotating connecting rod drives the moving contact component to be opened. Because sector gear and hasp spare joint in the combined floodgate direction, the drive relationship drives the hasp spare for sector gear, and the hasp spare drives the rotation connecting rod, consequently, when automatic combined floodgate breaks down or the outage leads to automatic combined floodgate function to lose efficacy at the combined floodgate in-process, can directly accomplish the combined floodgate of circuit breaker through the mode that manual combined floodgate intervenes, directly promote the rotation connecting rod through manual subassembly promptly and rotate, accomplish the combined floodgate of movable contact subassembly. In a similar way, in the manual brake-separating process, the manual assembly slides from the locking end to the unlocking end in the sliding hole to remove the transmission relation between the sector gear and the rotating connecting rod, namely, the interference between the manual assembly and the automatic assembly is removed, so that the normal brake-separating function of the circuit breaker can be realized through the intervention of the manual assembly when the automatic assembly fails or breaks down in the automatic brake-separating process.

The utility model also provides an operating device is applied to operating device with foretell clutch, can realize alone respectively on manual divide-shut brake or automatic divide-shut brake's the basis, can also be when automatic subassembly trouble or inefficacy, by the direct divide-shut brake of accomplishing the circuit breaker of interveneeing of manual subassembly, effectual operating device's stability and multifunctionality of having improved.

The utility model also provides a circuit breaker, be applied to the circuit breaker with above-mentioned operating device who has clutch, when solving automatic subassembly trouble or be difficult to carry out effectual divide-shut brake's problem when becoming invalid, set up operating device inside the casing of circuit breaker to keep apart and protect its formation.

Drawings

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

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

fig. 2 is a schematic structural diagram of a rotating link of a clutch device according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a locking member of a clutch device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a sector gear of a clutch device according to an embodiment of the present invention;

fig. 5 is a second schematic structural diagram of a clutch device according to an embodiment of the present invention;

fig. 6 is a schematic view of an electric closing state of an operating mechanism according to an embodiment of the present invention;

fig. 7 is a second schematic view illustrating a state of an electric switch-on of the operating mechanism according to the embodiment of the present invention;

fig. 8 is one of schematic diagrams of states in which the electric switch-on of the operating mechanism is in place according to the embodiment of the present invention;

fig. 9 is a second schematic view of a state in which the electric switch-on of the operating mechanism is in place according to the embodiment of the present invention;

fig. 10 is a schematic view of an electric brake-off state of the operating mechanism according to an embodiment of the present invention;

fig. 11 is a second schematic view illustrating a state of an electric opening of the operating mechanism according to the embodiment of the present invention;

fig. 12 is a schematic view of an in-place state of the electric brake-off of the operating mechanism according to the embodiment of the present invention;

fig. 13 is a second schematic view illustrating a state where the electric brake of the operating mechanism is in place according to the embodiment of the present invention;

fig. 14 is a schematic diagram of a state of a manual closing of an operating mechanism according to an embodiment of the present invention;

fig. 15 is a schematic state diagram of a manual opening of an operating mechanism according to an embodiment of the present invention.

Icon: 110-sector gear; 111-snap grooves; 112-a retention bump; 113-a retention spring; 114-a first trip projection; 120-a catch member; 121-unlocking; 1211 — unlocking the inclined wall; 122-a reset protrusion; 123-clamping protrusions; 130-rotating link; 131-a sliding hole; 1311-locking end; 1312-an unlocking end; 132-moving contact connection hole; 133-a second trip projection; 134-a closing stop protrusion; 135-opening stop projection; 136-closing the stop wall; 140-a return spring; 200-a manual assembly; 201-a handle; 202-a drive link; 300-an automatic assembly; 301-drive all-gear; 302-drive sector gear; 400-moving contact assembly; 401-a drive link; 500-shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention may be combined with each other, and the combined embodiments are still within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "first", "second", "third", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses an aspect of the embodiment provides a clutch for operating device, include: sector gear 110, catch piece 120 and rotating link 130; the sector gear 110 and the rotating connecting rod 130 are coaxially arranged and can rotate relatively; the rotating link 130 is rotatably connected with the locking member 120, and the sector gear 110 is used for being clamped with the locking member 120; one end of the rotating connecting rod 130 is used for being in transmission connection with the moving contact assembly 400 in the operating mechanism; the sector gear 110 is used for meshing with the automatic assembly 300 in the operating mechanism; a sliding hole 131 is formed at the other end of the rotating link 130 for slidably connecting with a manual assembly 200 in the operating mechanism through the sliding hole 131; the manual assembly 200 abuts the unlocking part 121 on the locking part 120, and the sliding hole 131 comprises a locking end 1311 and an unlocking end 1312; when the manual assembly 200 is located at the locking end 1311 of the sliding hole 131, the rotating link 130 is driven to drive the moving contact assembly 400 to close; the manual assembly 200 slides from the locking end 1311 to the unlocking end 1312, the unlocking portion 121 rotates to disengage the locking element 120 from the sector gear 110, and the rotating link 130 drives the movable contact assembly 400 to open.

Illustratively, as shown in fig. 1, the clutch device includes a sector gear 110, a latch 120, and a rotating link 130, wherein the latch 120 is engaged with the sector gear 110 when the latch 120 is in the engaged state, and the latch 120 is disengaged from the sector gear 110 when the latch is in the unlocked state. The sector gear 110 and the rotation link 130 are coaxially disposed, that is, the sector gear 110 and the rotation link 130 are stacked and can rotate with each other when the locking member 120 and the sector gear 110 are not locked. The rotating link 130 and the locking member 120 are rotatably connected to each other so that the locking member 120 is subsequently pushed by the manual assembly 200 to rotate relative to the rotating link 130 when necessary, so that the locking member 120 is rotatably separated from the sector gear 110, i.e., the manual assembly 200 and the automatic assembly 300 are released from the coupling. The locking member 120 may be disposed between the sector gear 110 and the rotating link 130 as shown in fig. 1, or may be disposed outside the sector gear 110 and the rotating link 130, and the specific arrangement form is not limited in this application. The sector gear 110 can be engaged with the automatic assembly 300 in the operating mechanism, one end of the rotating link 130 can be in transmission connection with the moving contact assembly 400 in the operating mechanism (as shown in fig. 2, a moving contact connection hole 132 is provided), the other end of the rotating link 130 is provided with a sliding hole 131, the manual assembly 200 in the operating mechanism is in sliding connection with the rotating link 130 by inserting the sliding hole 131, as shown in fig. 2, the two ends of the sliding hole 131 are respectively a locking end 1311 and an unlocking end 1312. The shape of the sliding hole 131 may be an arc shape, and may be various forms such as a long strip shape, a square shape, and the like. Meanwhile, the manual assembly 200 may also abut against the unlocking portion 121 of the locking member 120 for the purpose of releasing the mutual interference of the manual assembly 200 and the automatic assembly 300 when necessary.

When realizing the combined floodgate function of movable contact subassembly 400, manual subassembly 200 can be located the locking end 1311 of slide opening 131 for sector gear 110 and hasp piece 120 are at the joint of combined floodgate direction (as shown in fig. 5, joint arch 123 on the hasp piece 120 and joint recess 111 on sector gear 110 cooperate at the joint of combined floodgate direction), and at this moment, rotation connecting rod 130 is driven and is accomplished the combined floodgate action with pivoted form drive movable contact subassembly 400, according to the difference of driven source, can divide into two kinds of manual combined floodgate and automatic combined floodgate:

automatic closing: as shown in fig. 6 and 7, the manual assembly 200 is located at the locking end 1311 of the sliding hole 131, the automatic assembly 300 receives a closing signal, and drives the sector gear 302 to rotate in the closing direction, at this time, the sector gear 110 and the latch 120 are engaged in the closing direction, so the latch 120 is driven to rotate in the closing direction, and the latch 120 is connected to the rotating link 130, so the rotating link 130 is driven to rotate in the closing direction, so the moving contact assembly 400 is driven to close. When the switch is closed to the right position, the position is as shown in fig. 8 and fig. 9. During closing, the manual assembly 200 is always at the locking end 1311 of the sliding hole 131 so as to maintain the continuous driving relationship of the sector gear 110 and the rotating link 130.

Manual closing: the manual assembly 200 is located at the locking end 1311 of the sliding hole 131, and directly pushes the rotating link 130 to rotate around its own rotating shaft in the closing direction under the action of an external force, so as to drive the movable contact assembly 400 in transmission connection with the manual assembly to close.

Because the rotation directions of the sector gear 110, the locking element 120 and the rotating connecting rod 130 are all towards the closing direction in the automatic closing process, the sector gear 110 is only clamped with the locking element 120 in the closing direction, the driving relationship is that the sector gear 110 drives the locking element 120, and the locking element 120 drives the rotating connecting rod 130, therefore, when the automatic closing fails in the closing process or the automatic closing function fails due to power failure, as shown in fig. 14, the closing of the circuit breaker can be directly completed in a manual closing intervention mode, that is, the rotating connecting rod 130 is directly pushed to rotate through the manual assembly 200, and the closing of the movable contact assembly 400 is completed.

When the opening function of the moving contact assembly 400 is realized, at this time, the rotating connecting rod 130 is driven to drive the moving contact assembly 400 to complete the opening action in a rotating manner, and the opening operation can be divided into two types, namely manual opening and automatic opening, according to the difference of the driven sources:

automatic brake opening: as shown in fig. 10 and 11, the automatic assembly 300 receives the opening signal, and then drives the sector gear 302 to rotate in the opening direction (which may be opposite to the closing direction), and at this time, when the sector gear rotates to a certain angle, the rotary link 130 is driven to rotate in the opening direction, so that the movable contact assembly 400 is driven by the rotary link 130 to open. When the brake is in place, the clutch is in the state as shown in fig. 12 and 13.

Manual brake opening: the manual assembly 200 is located at the locking end 1311 of the sliding hole 131, when opening is required, the manual assembly 200 receives a force (opening force) opposite to an external force applied to the manual assembly 200 when closing, and under the action of the opening force, as shown in fig. 15, the manual assembly 200 first slides along the sliding hole 131 from the locking end 1311 to the unlocking end 1312, and since the manual assembly 200 abuts against the unlocking portion 121 on the locking member 120, the unlocking portion 121 is gradually pushed by the manual assembly 200 during sliding, so that the locking member 120 rotates and gradually moves away from the sector gear 110. When the manual assembly 200 slides to the unlocking end 1312 of the sliding hole 131, the locking member 120 is completely separated from the sector gear 110 in the closing rotational direction, i.e., the locking member 120 and the sector gear 110 are disengaged, and the rotating link 130 and the sector gear 110 are disengaged. Then, the manual assembly 200 continues to move toward the opening direction under the continuous action of the opening force, so that the unlocking end 1312 abuts against the rotating link 130 to rotate toward the opening direction, and further the moving contact assembly 400 is driven to complete the opening.

In the manual opening process, the manual assembly 200 slides from the locking end 1311 to the unlocking end 1312 in the sliding hole 131 to release the transmission relationship between the sector gear 110 and the rotating link 130, that is, to release the interference between the manual assembly 200 and the automatic assembly 300, so that the normal opening function of the circuit breaker can be realized through the intervention of the manual assembly 200 when the automatic assembly 300 fails or breaks down in the automatic opening process.

Optionally, the unlocking part 121 is an unlocking protrusion, and the unlocking protrusion includes an unlocking inclined wall 1211, and the unlocking inclined wall 1211 is used for abutting against the manual assembly 200.

For example, as shown in fig. 3, the unlocking portion 121 on the locking member 120 may be an unlocking protrusion, and an unlocking inclined wall 1211 is disposed on the unlocking protrusion, and the inclination direction of the unlocking inclined wall 1211 gradually increases from the locking end 1311 to the unlocking end 1312 of the sliding hole 131, so that the locking member 120 is gradually pushed to rotate when the manual assembly 200 slides along the unlocking inclined wall 1211 from low to high. As shown in fig. 5 and 14, the unlocking protrusion on the locking member 120 may correspond to the sliding hole 131 on the rotating link 130, and the sliding hole 131 is a through hole (in other embodiments of the present application, the sliding hole 131 may also be a blind hole), and after the manual assembly 200 is inserted into the sliding hole 131, the manual assembly directly passes through the sliding hole 131 and abuts against the unlocking slant wall 1211 on the unlocking protrusion on the locking member 120 disposed between the sector gear 110 and the rotating link 130. The abutting force may be generated by the return elastic member 140 described below. As shown in fig. 1 and 5, when the manual assembly 200 slides along the unlocking slant wall 1211 to push the locking member 120 to rotate in a direction away from the sector gear 110, the return elastic member 140 is gradually compressed, so that when the external force applied to the manual assembly 200 is removed, the return force applied to the locking member 120 by the return elastic member 140 drives the locking member 120 to rotate in a direction close to the sector gear 110, so as to reengage the sector gear 110 with the locking member at a proper time, thereby facilitating the next driving of the automatic assembly 300.

Optionally, the clutch device further includes a restoring spring 140, and the restoring spring 140 abuts against the locking member 120 to provide a force for restoring the locking member 120.

In addition, as shown in fig. 5 and 10, the reset elastic element 140 can also generate an auxiliary opening acting force moving towards the opening direction to the rotating link 130 indirectly through the connection relationship between the locking element 120 and the rotating link 130 by acting a force for resetting the locking element 120, so that the speed of the moving contact assembly 400 during opening is increased, the electrical loss between the moving contact and the stationary contact is reduced, and the service life of the circuit breaker is prolonged. The return elastic member 140 may be a torsion spring as shown in fig. 1, the torsion spring is sleeved on a rotating shaft coaxially disposed between the sector gear 110 and the rotating link 130, as shown in fig. 13, one end of the torsion spring abuts against a limiting portion on the housing 500 of the circuit breaker, and the other end abuts against the return protrusion 122 on the locking member 120.

It should be noted that, due to the connection relationship between the rotating link 130 and the locking element 120, when the rotating link 130 is driven to be closed, the locking element 120 is driven to rotate in the closing direction, and during the rotation process, the elastic return element 140 is gradually compressed, so as to generate an auxiliary force for opening the rotating link 130.

In order to enable the movable contact assembly 400 to be switched on or off in place under the driving of the rotating connecting rod 130, the movable contact can keep the current switching-on or switching-off state, the movable contact assembly 400 can comprise a movable contact and a tension spring which are in transmission connection with the rotating connecting rod 130, the tension spring provides a switching-on acting force for the movable contact after the movable contact is switched on in place, a switching-off acting force is provided for the movable contact after the movable contact is switched off in place, and the acting force in the two states is larger than the auxiliary acting force generated by the reset elastic element 140, so that the movable contact assembly 400 can keep the current state after the movable contact.

Optionally, a first trip protrusion 114 is disposed on the sector gear 110, and a second trip protrusion 133 is disposed on the rotating link 130, so that when the sector gear 110 is driven by the automatic assembly 300, the first trip protrusion 114 abuts against the second trip protrusion 133 to drive the rotating link 130 to open the moving contact assembly 400.

For example, as shown in fig. 2, 4 and 10, in order to realize that the automatic assembly 300 drives the sector gear 302 to drive the rotating link 130 to move so as to realize the opening operation of the movable contact assembly 400, a first trip protrusion 114 may be further disposed on the sector gear 110, and a second trip protrusion 133 may be further disposed on the rotating link 130. When the brake is required to be opened, the automatic assembly 300 drives the sector gear 302 to rotate towards the brake opening direction, when the sector gear rotates by a certain angle, the first trip protrusion 114 abuts against the second trip protrusion 133, at this time, the sector gear 110 continues to rotate towards the brake opening direction, so as to drive the rotating link 130 to move towards the brake opening direction, and drive the movable contact assembly 400 to open.

Optionally, a closing stopping protrusion 134 is further disposed on the rotating link 130, and the closing stopping protrusion 134 is used for abutting and limiting against the housing 500 accommodating the operating mechanism when the movable contact assembly 400 is in a closing state.

For example, in order to further improve the stability of the circuit breaker, as shown in fig. 2, a closing stop protrusion 134 may be further disposed on the rotating link 130, and after the rotating link 130 drives the moving contact assembly 400 to be closed in place, as shown in fig. 8, the closing stop protrusion 134 on the rotating link 130 is just abutted to a limit portion on the housing 500 of the circuit breaker, so as to limit the rotating link 130 and avoid the transitional rotation thereof. As shown in fig. 2, a closing stop wall 136 may also be disposed on the rotating link 130, and when the rotating link 130 drives the moving contact assembly 400 to close in place, as shown in fig. 8, the closing stop wall 136 on the rotating link 130 just abuts against the transmission link 202 on the manual assembly 200 to limit the rotating link 130, so as to avoid excessive rotation thereof.

Similarly, as shown in fig. 2, an opening stop protrusion 135 may be further disposed on the rotating link 130, and after the moving contact assembly 400 opens, the opening stop protrusion 135 on the rotating link 130 may abut against another limiting portion on the housing 500 to limit the rotating link 130 to continue rotating, or when the moving contact assembly 400 includes the driving link 401, as shown in fig. 12, the moving contact assembly abuts against the driving link 401 to achieve limiting.

Optionally, a retaining spring 113 is further disposed between the sector gear 110 and the rotating link 130, and one end of the retaining spring 113 abuts against the sector gear 110 and the other end abuts against the rotating link 130.

For example, as shown in fig. 1 and fig. 3, a holding protrusion 112 (or may be disposed on the rotation link 130) may be further disposed on a side surface of the sector gear 110 close to the rotation link 130, and the holding spring 113 is sleeved on the holding protrusion 112, such that one end of the holding spring 113 abuts against the sector gear 110, and the other end abuts against the rotation link 130, so as to maintain synchronous rotation of the sector gear 110 and the rotation link 130 when the sector gear 110 and the rotation link 130 are not subjected to forces in opposite directions, thereby preventing the sector gear 110 from freely rotating without limitation after the sector gear 302 and the sector gear 110 in the driving gear set in the automatic assembly 300 are separated, and causing instability of the entire operating mechanism. The retaining spring 113 may be a conical spring, with the smaller diameter end of the top surface abutting the sector gear 110 and the larger diameter end of the ground surface abutting the rotating link 130.

The embodiment of the present invention provides an operating mechanism, as shown in fig. 6 to 15, which is disposed in the housing 500 of the circuit breaker, including the automatic assembly 300, the manual assembly 200, the movable contact assembly 400 and any one of the above clutch devices, the automatic assembly 300 is engaged with the sector gear 110 of the clutch device, the movable contact assembly 400 is connected with the one end of the rotating link 130 of the clutch device in a transmission manner, and the manual assembly 200 is connected with the other end of the rotating link 130 in a sliding manner through the sliding hole 131. On the basis that manual switching-on and switching-off or automatic switching-on and switching-off can be realized alone respectively through clutch, can also be when automatic subassembly 300 trouble or became invalid, by the switching-on and switching-off of manual subassembly 200 direct intervention completion circuit breaker, effectual operating device's stability and multifunctionality have been improved.

Optionally, the automation assembly 300 includes a drive and drive gear set; the driver is in transmission connection with a driving gear set, and the driving gear set comprises a driving full gear 301 and a driving sector gear 302 arranged on the driving full gear 301; drive sector gear 302 is adapted to mesh with sector gear 110.

Illustratively, as shown in fig. 7, the automatic assembly 300 includes a driver and a driving gear set, wherein the driver may be a motor or the like, and the driver and the driving gear set may be driven in the form of a worm gear or a conical tooth, and the two driving forms can effectively reduce the volume of the circuit breaker. Meanwhile, the driving gear set may include a driving full gear 301 and a driving sector gear 302 which are stacked and coaxially disposed, wherein the driving full gear 301 may be directly engaged with the motor, or may be indirectly engaged by being driven through an intermediate gear. The driving sector gear 302 rotates in synchronization with the driving full gear 301 so that when the motor rotates, the driving sector gear 302 drives the sector gear 110 in the clutch to rotate, and when the motor rotates in place (the movable contact assembly 400 is switched on or switched off in place), the driving sector gear 302 and the sector gear 110 in the clutch are separated as shown in fig. 9.

Optionally, as shown in fig. 5 and 8, the manual assembly 200 includes a handle 201 and a transmission link 202; one end of the transmission link 202 is connected to the handle 201, and the other end is inserted into the sliding hole 131 of the rotation link 130 and abuts against the unlocking part 121 of the locking part 120 of the clutch device.

In another aspect of the embodiment, the present invention provides a circuit breaker, which includes a housing 500 and an operating mechanism disposed inside the housing 500.

As shown in fig. 13, the operating mechanism including the clutch device is applied to a circuit breaker, and is disposed inside a housing 500 of the circuit breaker to isolate and protect the circuit breaker, so that it is possible to solve the problem that it is difficult to perform effective opening and closing operations when the automatic assembly 300 fails or fails, and at the same time, a signal terminal, an arc extinguishing structure, and the like may be disposed inside the circuit breaker.

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

Claims (10)

1. A clutch device for an operating mechanism, comprising: the sector gear, the locking fastener and the rotating connecting rod; the sector gear and the rotating connecting rod are coaxially arranged and can rotate relatively; the rotating connecting rod is rotationally connected with the lock catch piece, and the sector gear is used for being clamped with the lock catch piece;

one end of the rotating connecting rod is used for being in transmission connection with a moving contact component in the operating mechanism; the sector gear is used for meshing with an automatic component in the operating mechanism; the other end of the rotating connecting rod is provided with a sliding hole for being in sliding connection with a manual assembly in the operating mechanism through the sliding hole; the manual assembly is abutted with the unlocking part on the lock catch piece, and the sliding hole comprises a locking end and an unlocking end; when the manual assembly is positioned at the locking end of the sliding hole, the rotating connecting rod is driven to drive the moving contact assembly to be switched on; the manual assembly slides from the locking end to the unlocking end, the unlocking part rotates to enable the locking part to be separated from the sector gear, and the rotating connecting rod drives the moving contact assembly to be opened.

2. The clutched device of claim 1, wherein the unlocking feature is an unlocking protrusion comprising an unlocking ramp wall for abutting the manual assembly.

3. The clutched device of claim 1, further comprising a return spring in abutment with the latch member for providing a force to return the latch member.

4. The clutch device according to claim 1, wherein a first release protrusion is provided on the sector gear, and a second release protrusion is provided on the rotating link, so that when the sector gear is driven by the automatic assembly, the first release protrusion abuts against the second release protrusion to drive the rotating link to open the movable contact assembly.

5. The clutch device according to claim 1, wherein a closing stop protrusion is further disposed on the rotating link, and the closing stop protrusion is configured to abut against and limit a housing accommodating the operating mechanism when the movable contact assembly is in a closing state.

6. The clutch device according to claim 1, wherein a holding spring is further provided between the sector gear and the rotating link, and one end of the holding spring abuts against the sector gear and the other end abuts against the rotating link.

7. An operating mechanism arranged in a shell of a circuit breaker, which is characterized by comprising an automatic assembly, a manual assembly, a movable contact assembly and the clutch device as claimed in any one of claims 1 to 6, wherein the automatic assembly is meshed with a sector gear of the clutch device, the movable contact assembly is in transmission connection with one end of a rotating connecting rod of the clutch device, and the manual assembly is in sliding connection with the other end of the rotating connecting rod through a sliding hole.

8. The operating mechanism of claim 7 wherein said automated assembly comprises a driver and a drive gear set; the driver is in transmission connection with the driving gear set, and the driving gear set comprises a driving full gear and a driving sector gear arranged on the driving full gear; the drive sector gear is configured to engage the sector gear.

9. The operating mechanism of claim 7 wherein said manual assembly includes a handle and a drive link; one end of the transmission connecting rod is connected with the handle, the other end of the transmission connecting rod is inserted into the sliding hole of the rotating connecting rod, and the transmission connecting rod is abutted to the unlocking part on the locking piece of the clutch device.

10. A circuit breaker comprising a housing and an operating mechanism according to any one of claims 7 to 9 disposed within the housing.

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