CN220627639U - Locking device and circuit breaker - Google Patents

Abstract

The application provides a locking device and a circuit breaker. The locking device comprises a locking structure and a transmission structure, wherein the transmission structure is provided with a closing position and a separating brake position in a working mode, the circuit breaker is in a closing state when the transmission structure is positioned at the closing position, and the circuit breaker is in a separating brake state when the transmission structure is positioned at the separating brake position; the locking structure is provided with a locking state and a working state, the locking structure limits the transmission structure to be positioned at the opening position in the locking state, and the transmission structure can be switched between the closing position and the opening position in the working state. The locking device can safely lock the circuit breaker or restore the normal work of the circuit breaker, and can adjust the circuit breaker to be in a locking mode or a normal working mode according to actual requirements, so that the circuit breaker can safely and reliably operate.

Description

Locking device and circuit breaker

Technical Field

The application belongs to the technical field of electrical switches, relates to a locking device, and particularly relates to a locking device and a circuit breaker.

Background

As the network gradually becomes intelligent, the requirements for power supply equipment are becoming more and more intelligent. Among the existing power network terminals, the most used or traditional circuit breakers are also some smart grid terminals use smart circuit breakers. The intelligent circuit breaker can be combined with a gateway to monitor electricity consumption in real time, so that over-temperature, over-voltage and under-voltage protection are realized, electricity consumption and faults are collected and uploaded in time, and the circuit breaker can be remotely controlled to perform a series of operations such as opening and closing operations on the circuit breaker.

In some cases, the remote control signal of the intelligent circuit breaker needs to be disconnected, for example, when a circuit is connected or overhauled, a circuit needs to be disconnected to perform electroless operation, and in order to ensure safe operation, the remote control signal needs to be disconnected, so that potential safety hazards caused by misoperation of a remote terminal to perform closing are avoided. The common practice is to add a dial switch on the intelligent circuit breaker, and to control the on-off of the remote control signal by operating the dial switch.

At present, a conventional miniature circuit breaker does not have a mechanical locking mechanism, and can not lock the circuit breaker in an open state, so that potential safety hazards exist.

Disclosure of Invention

An object of the application is to provide a locking device and circuit breaker for solve the unable problem of controlling circuit breaker safety locking of prior art.

In a first aspect, the present application provides a locking device, where the locking device includes a locking structure and a transmission structure, and in a working mode, the transmission structure has a closing position and a breaking position, when the transmission structure is in the closing position, the circuit breaker is in a closing state, and when the transmission structure is in the breaking position, the circuit breaker is in a breaking state; the locking structure is provided with a locking state and a working state, the locking structure limits the transmission structure to be positioned at the opening position in the locking state, and the transmission structure can be switched between the closing position and the opening position in the working state.

In this application, locking device includes transmission structure and locking structure, can cooperate so that the circuit breaker switches between closing state and separating brake state, can be in locking mode or working mode according to actual demand adjustment circuit breaker for circuit breaker safe and reliable operation.

In one implementation manner of the first aspect, the locking structure includes a limiting portion, the limiting portion includes a limiting boss, the circuit breaker housing includes two limiting grooves matched with the limiting boss, the limiting boss can be switched between the two limiting grooves, the locking structure is in the locking state when the limiting boss is located in one of the limiting grooves, and the locking structure is in the working state when the limiting boss is located in the other limiting groove.

In an implementation manner of the first aspect, the limiting portion further includes a limiting hook, and in the locked state, the limiting hook limits the transmission structure to be located at the opening position.

In an implementation manner of the first aspect, the limiting portion further includes a first elastic edge and a second elastic edge that are set relatively, the limiting boss is set up in a side of the first elastic edge away from the second elastic edge, and the limiting hook is set up in a side of the second elastic edge away from the first elastic edge.

In one implementation of the first aspect, the locking structure further includes a locking portion including a shackle hole.

In an implementation manner of the first aspect, the locking structure further includes an operation portion disposed on the locking portion.

In an implementation manner of the first aspect, the transmission structure includes a positioning portion, a transmission shaft, and a locking shaft that are arranged in a triangle; the positioning part is used for positioning the transmission structure on the circuit breaker, the transmission shaft is linked with a switch of the circuit breaker, the locking structure is in a locking state and limits the locking shaft to be in a locking area, and the locking shaft can move in the locking area and the working area when the locking structure is in the working state.

In one implementation manner of the first aspect, the positioning portion includes a positioning hole, and the positioning hole is matched with a positioning boss of the circuit breaker.

In a second aspect, the present application provides a circuit breaker comprising: a circuit breaker body; a circuit breaker housing; the locking device of any one of the first aspects, the locking device being provided to the circuit breaker housing.

In one implementation manner of the second aspect, the circuit breaker housing includes a positioning boss, and the locking device is disposed on the positioning boss.

As described above, the locking device and the circuit breaker have the following beneficial effects:

the locking device comprises a transmission structure and a locking structure, the circuit breaker can be safely locked or restored to work normally, and the circuit breaker can be adjusted to be in a locking mode or a normal working mode according to actual requirements, so that the circuit breaker can be operated safely and reliably.

Drawings

Fig. 1 is a schematic view of a locking structure according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a transmission structure according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a locking device according to an embodiment of the present application.

Fig. 4 is a schematic structural view of a circuit breaker housing according to an embodiment of the present application.

Fig. 5 is a schematic structural view showing a locked state according to an embodiment of the present application.

Fig. 6 is a schematic structural view of a locked state according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram illustrating an operating state according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram illustrating an operating state according to an embodiment of the present application.

Description of element reference numerals

1. Locking device

11. Locking structure

111. Limiting part

1111. Spacing boss

1112. Limiting hook

1113. First elastic edge

1114. Second elastic edge

112. Locking part

1121. Lock catch hole

113. Operation part

12. Transmission structure

121. Positioning part

1211. Positioning hole

122. Transmission shaft

123. Locking shaft

2. Circuit breaker

22. Circuit breaker shell

221. Limiting groove

222. Limiting groove

223. Positioning boss

Detailed Description

Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that, the illustrations provided in the following embodiments merely illustrate the basic concepts of the application by way of illustration, and only the components related to the application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In this application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The embodiment of the application provides a locking device. The locking device comprises a locking structure and a transmission structure. The locking structure has a locked state and an operating state. The locking structure limits the transmission structure to be positioned at the opening position in the locking state, and the circuit breaker can be locked in the opening state at the moment, so that the safety is ensured.

In addition, under the operating condition, the circuit breaker can be normally switched on and switched off, so that the circuit breaker can be ensured to normally work.

In addition, the transmission structure is provided with a switching-off position and a switching-on position. When the transmission structure is in the opening position and the locking structure is in the locking state, the circuit breaker is locked in the disconnecting state, so that potential safety hazards are avoided.

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure. Accordingly, the following detailed description of the embodiments of the present application, provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In an embodiment of the present application, the embodiment of the present application provides a locking device 1. The locking device 1 comprises a locking structure 11 and a transmission structure 12. In the working mode, the transmission structure 12 has a closing position and a breaking position, the circuit breaker 2 is in a closing state when the transmission structure 12 is in the closing position, and the circuit breaker 2 is in a breaking state when the transmission structure 12 is in the breaking position. The locking structure 11 has a locking state in which the locking structure 11 restricts the transmission structure 12 from being located at the opening position, and an operating state in which the transmission structure 12 can be switched between the closing position and the opening position.

The closing position is the first position of the transmission structure 12, and is merely used as a description of the position of the transmission structure 12. When the transmission structure 12 is in the closing position, the circuit breaker 2 can be opened or closed freely. The opening position is a second position of the transmission structure 12, and the first position and the second position are different. When the transmission structure 12 is in the opening position, the circuit breaker 2 is locked in the opening state, i.e. the transmission structure 12 locks the circuit breaker 2 in the opened state.

The opening state is a first state of the circuit breaker 2, when the circuit breaker 2 is in the opening state, the locking structure 11 is in the locking state, the transmission structure 12 is limited to the opening position, and the circuit breaker 2 cannot be closed. The closing state is a second state of the circuit breaker 2, and the first state and the second state are different. In the closing state, the locking structure 11 is in a working state, the transmission structure 12 can be switched between a closing position and a separating position, and the circuit breaker 2 can be normally closed.

When the locking structure 11 is in the locking state, the circuit breaker 2 is limited to be locked in the opening state, and cannot work normally. When the locking structure 11 is in the working state, the transmission structure 12 can be switched between a first position and a second position, and the circuit breaker 2 can be switched on or off freely.

In yet another embodiment of the present application, the locking structure 11 includes a limiting portion 111. The limit part 111 includes a limit boss 1111, the circuit breaker housing 22 includes two limit grooves 221 and 222 matched with the limit boss 1111, and the limit boss 1111 can be switched between the limit grooves 221 and 222. The locking structure 11 is in the locking state when the limit boss 1111 is located in one of the limit grooves 221, and the locking structure 11 is in the working state when the limit boss is located in the other limit groove 222.

In another embodiment of the present application, the limiting portion 111 further includes a limiting hook 1112, where the limiting hook 1112 limits the transmission structure 12 to be located at the opening position in the locked state. The limiting hook is a bending structure capable of limiting positions, and the limiting hook is not limited to the bending structure.

In yet another embodiment of the present application, the limiting portion 111 further includes a first elastic edge 1113 and a second elastic edge 1114 that are disposed opposite to each other, the limiting boss 1111 is disposed on a side of the first elastic edge 1113 away from the second elastic edge 1114, and the limiting hook 1112 is disposed on a side of the second elastic edge 1114 away from the first elastic edge 1113.

Wherein both the first elastic edge 1113 and the second elastic edge 1114 are elastically deformable. Optionally, the first elastic edge 1113 and the second elastic edge 1114 are made of high elastic and wear-resistant plastics, but the application is not limited thereto.

In yet another embodiment of the present application, the locking structure 11 further includes a locking portion 112, and the locking portion 112 includes a locking hole 1121. Wherein, after the assembly of the locking device 1 is completed, the locking hole 1121 protrudes out of the breaker housing 22 of the breaker 2 when the locking structure 11 is in the locked state. The locking structure 11 can lock the circuit breaker 2 using the locking hole 1121 when in a locked state. The breaker 2 can not be normally switched on or switched off after being locked, so that potential safety hazards are avoided.

In yet another embodiment of the present application, the locking structure 11 further includes an operating portion 113 disposed on the locking portion 112. Optionally, the operation portion 113 is a boss or a pull ring, which is not limited in this application.

Fig. 1 is a schematic view of a locking structure according to an embodiment of the present application. As shown in fig. 1, the locking structure 11 includes a stopper 111, a locking portion 112, and an operating portion 113. The limiting portion 111 includes a limiting boss 1111, a limiting hook 1112, a first elastic edge 1113, and a second elastic edge 1114. The limit boss 1111 is disposed on a side of the first elastic edge 1113 away from the second elastic edge 1114, and the limit hook 1112 is disposed on a side of the second elastic edge 1114 away from the first elastic edge 1113. The locking portion 112 includes a locking hole 1121, and the operating portion 113 is provided on the locking portion 112.

The locking device comprises a transmission structure and a locking structure, the circuit breaker can be safely locked or restored to work normally, and the circuit breaker can be adjusted to be in a locking mode or a normal working mode according to actual requirements, so that the circuit breaker can be operated safely and reliably.

Fig. 2 is a schematic diagram of a transmission structure according to an embodiment of the present application. As shown in fig. 2, the transmission structure 12 includes a positioning portion 121, a transmission shaft 122, and a locking shaft 123, which are arranged in a triangle. The positioning part 121 is used for positioning the transmission structure 12 on the circuit breaker 2. The transmission shaft 122 is coupled with the switch of the circuit breaker 2, the locking structure 11 limits the locking shaft 123 to be in a locking area when in the locking state, and the locking shaft 123 is movable in the locking area and the working area when the locking structure 11 is in the working state.

With continued reference to fig. 2, in another embodiment of the present application, the positioning portion 121 includes a positioning hole 1211, and the positioning hole 1211 is matched with the positioning boss 223 of the circuit breaker 2. Wherein, in the assembled state, the positioning boss 223 may be fastened into the positioning hole 1211 and may rotate relative to the positioning hole 1211.

Fig. 3 shows a schematic view of the locking device 1 according to an embodiment of the present application in an assembled state. As shown in fig. 3, the locking device 1 in the embodiment of the present application is assembled to the circuit breaker 2. Specifically, the circuit breaker 2 includes a circuit breaker body (not shown in the drawings) and a circuit breaker housing 22. The locking device 1 is provided in the breaker housing 22.

In yet another embodiment of the present application, the circuit breaker housing 22 includes a positioning boss 223, and the locking device 1 is disposed on the positioning boss 223.

Fig. 4 is a schematic structural view of a circuit breaker housing according to an embodiment of the present application. As shown in fig. 4, the circuit breaker housing 22 includes a limit groove 221, a limit groove 222, and a positioning boss 223. The limit grooves 221 and 222 are matched with the limit boss 1111 of the limit part 111 of the locking structure 11, the limit boss 1111 can be switched between the limit grooves 221 and 222, the locking structure 11 is in the locking state when the limit boss 1111 is located in one of the limit grooves 221, and the locking structure 11 is in the working state when the limit boss is located in the other limit groove 222.

Fig. 5 is a schematic structural view showing a locked state according to an embodiment of the present application. As shown in fig. 5, when the locking structure 11 is in the locked state, the restricting transmission structure 12 is in the opening position.

Fig. 6 is a schematic structural view of a locked state according to an embodiment of the present application. As shown in fig. 6, when the locking structure 11 is in the locked state, the limit boss 1111 of the locking structure is switched to the limit slot 221 of the circuit breaker housing 22, the locking shaft 123 of the transmission structure 12 is in the locking area, the transmission structure 12 is in the opening state, and the circuit breaker 2 cannot be normally closed.

Fig. 7 is a schematic structural diagram illustrating an operating state according to an embodiment of the present application. As shown in fig. 7, when the locking structure 11 is in an operating state, the transmission structure 12 is in the closing position, the locking shaft 123 of the transmission structure 12 can move in the locking area and the operating area, and the circuit breaker 2 can normally perform the operation of opening and closing.

Fig. 8 is a schematic structural diagram illustrating an operating state according to an embodiment of the present application. As shown in fig. 8, when the locking structure 11 is in an operating state, the limit boss 1111 of the locking structure is switched to the limit slot 222 of the circuit breaker housing 22, the transmission structure 12 is in a closing position, and the locking shaft 123 of the transmission structure 12 can move in the locking area and the operating area. In some possible implementations, the method of use of the locking device 1 is as follows: the circuit breaker 2 comprises a circuit breaker body 21 and a circuit breaker housing 22, the locking device 1 being arranged on the circuit breaker housing 22 of said circuit breaker 2. The locking device 1 comprises a locking structure 11 and a transmission structure 12, wherein the locking structure 11 has a locking state and an operating state, and the transmission structure 12 has a closing position and a separating position.

With continued reference to fig. 5 and 6, when the circuit breaker 2 needs to be locked, the operating portion 113 of the locking structure 11 is pulled, the operating portion 113 drives the limit boss 1111 of the locking structure 11 to slide through the limit slot 222 of the circuit breaker housing 22, the elastic edge 1113 deforms to the limit slot 221 of the circuit breaker housing 22 and then resets, and the locking hook 1112 locks the locking shaft 123 to be limited in the locking area. The locking portion 112 and the operating portion 113 of the locking structure 11 protrude outside the circuit breaker housing 22 of the circuit breaker 2, and the locking hole 1121 protrudes outside the circuit breaker housing 22. At this time, the locking structure 11 is in a locked state, the transmission structure 12 is in a breaking position, and the breaker 2 is in a breaking state and cannot be normally closed.

With continued reference to fig. 7 and 8, when the circuit breaker needs to operate normally, the operating portion 113 of the locking structure 11 is pushed, the operating portion 113 drives the limit boss 1111 of the locking structure 11 to slide through the limit slot 221 of the circuit breaker housing 22, the elastic edge 1113 deforms to the limit slot 222 of the circuit breaker housing 22 and then resets, and meanwhile the locking shaft 123 can switch between the operating area and the locking area. The locking portion 112 and the operating portion 113 of the locking structure 11 are disposed within the circuit breaker housing 22. At this time, the locking structure 11 is in a working state, the transmission structure 12 is in a closing position, the circuit breaker 2 resumes normal opening and closing, and when the circuit breaker 2 is opened or closed, the transmission shaft 122 of the transmission structure 12 can be driven to move, and the transmission shaft 122 drives the locking shaft 123 to move between the locking area and the working area.

The embodiment of the application also provides a circuit breaker. The circuit breaker comprises a circuit breaker body, a circuit breaker housing and the locking device according to any embodiment of the application, wherein the locking device is arranged on the circuit breaker housing.

In an embodiment of the present application, the circuit breaker housing may further include a positioning boss, and the locking device is disposed on the positioning boss.

The descriptions of the processes or structures corresponding to the drawings have emphasis, and the descriptions of other processes or structures may be referred to for the parts of a certain process or structure that are not described in detail.

The foregoing embodiments are merely illustrative of the principles of the present application and their effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those of ordinary skill in the art without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications and variations which may be accomplished by persons skilled in the art without departing from the spirit and technical spirit of the disclosure be covered by the claims of this application.

Claims (10)

1. The locking device is characterized by comprising a locking structure and a transmission structure, wherein in a working mode, the transmission structure is provided with a closing position and a separating brake position, a circuit breaker is in a closing state when the transmission structure is in the closing position, and the circuit breaker is in a separating brake state when the transmission structure is in the separating brake position;

the locking structure is provided with a locking state and a working state, the locking structure limits the transmission structure to be positioned at the opening position in the locking state, and the transmission structure can be switched between the closing position and the opening position in the working state.

2. The locking device of claim 1, wherein the locking structure comprises a limit portion, the limit portion comprises a limit boss, the circuit breaker housing comprises two limit grooves matched with the limit boss, the limit boss can be switched between the two limit grooves, the locking structure is in the locking state when the limit boss is located in one of the limit grooves, and the locking structure is in the working state when the limit boss is located in the other limit groove.

3. The lockout device of claim 2, wherein the limit portion further comprises a limit hook that limits the transmission structure from being in the open position in the lockout condition.

4. The locking device of claim 3, wherein the limiting portion further comprises a first elastic edge and a second elastic edge which are oppositely arranged, the limiting boss is arranged on one side, away from the second elastic edge, of the first elastic edge, and the limiting hook is arranged on one side, away from the first elastic edge, of the second elastic edge.

5. The locking device of claim 2, wherein the locking structure further comprises a locking portion comprising a shackle hole.

6. The locking device of claim 5, wherein the locking structure further comprises an operating portion provided to the locking portion.

7. The locking device of claim 1, wherein the transmission structure comprises a positioning portion, a transmission shaft and a locking shaft arranged in a triangle; the positioning part is used for positioning the transmission structure on the circuit breaker, the transmission shaft is linked with a switch of the circuit breaker, the locking structure is in a locking state and limits the locking shaft to be in a locking area, and the locking shaft can move in the locking area and the working area when the locking structure is in the working state.

8. The lockout device of claim 7, wherein the locating feature comprises a locating hole that mates with a locating boss of the circuit breaker.

9. A circuit breaker, the circuit breaker comprising:

a circuit breaker body;

a circuit breaker housing;

the locking device of any one of claims 1 to 8, provided to the circuit breaker housing.

10. The circuit breaker of claim 9, wherein the circuit breaker housing includes a positioning boss, the locking device being disposed on the positioning boss.