CN216818125U - Control accessory and switch device - Google Patents

Abstract

The present disclosure relates to a control accessory and a switchgear. The manoeuvring accessory comprises a manoeuvring and locking assembly comprising a slide (10) and a locking member (20) adapted to interact with the slide (10). The slider (10) is slidably disposed in the housing (40) and in a first position the manoeuvring accessory is operated in an automatic mode, in a second position the manoeuvring accessory is operated in a manual mode, and in a third position the manoeuvring accessory is in a maintenance mode. The locking member (20) is held within the housing (40) when the slider (10) is moved between the first position and the second position, the slider (10) acting on the locking member (20) when the slider (10) is moved from the second position to the third position, so that the locking member (20) can at least partially protrude from the housing (40). The control accessory can realize the integration of an automatic mode, a manual mode and a maintenance mode of the control accessory, and the use friendliness of a user is obviously improved.

Description

Control accessory and switch device

Technical Field

Embodiments of the present disclosure generally relate to the field of switchgear, and more particularly, to a control accessory.

Background

Switchgear such as circuit breakers are often provided with remote operated accessories (RCAs). The remote operated accessory may be provided in conjunction with the switchgear for remote control of the switchgear as well as for on-site manual control. Furthermore, when the switchgear is in the maintenance state, it is necessary to lock the remote manipulation accessory to avoid a user's misoperation of the remote manipulation accessory. However, the conventional remote manipulation accessory has problems of a complicated structure and poor user-friendliness. It is desirable to simplify the structure of the remote manipulation accessory and to improve the convenience of use for the user.

Disclosure of Invention

Embodiments of the present disclosure provide a panel switch that addresses one or more of the above issues and other potential issues.

According to a first aspect of the present disclosure, a steering accessory is provided. The manipulation accessory includes: a housing; and a steering and locking assembly arranged in the housing and comprising a slider and a locking member adapted to interact with the slider, the locking member being pivotably mounted to the housing, wherein the slider is slidably arranged in the housing and adapted to be linearly moved between a first position, in which the steering accessory is operated in an automatic mode, a second position, in which the steering accessory is operated in a manual mode, and a third position, in which the steering accessory is in a maintenance mode, arranged in sequence; wherein the locking member is retained within the housing when the slider is moved between the first position and the second position, the slider acting on the locking member when the slider is moved from the second position to the third position to enable the locking member to at least partially protrude from the housing.

According to the control accessory disclosed by the embodiment of the disclosure, the integration of an automatic mode, a manual mode and a maintenance mode of the control accessory can be conveniently realized by providing the control and locking assembly, and the use friendliness of a user is obviously improved. Furthermore, the interlocking of the slider and the locking element can be achieved in a simple manner by the position-based interaction of the slider and the locking element.

In some embodiments, the lock is held in a predetermined position by a spring, wherein upon movement of the slider from the second position to the third position, the slider pushes the lock to pivot the lock against the spring torque.

In some embodiments, the housing comprises a first opening, the lock comprises a lock ring and a support integrally disposed at an angle relative to the lock ring, the support comprising a pivot adapted to be mounted to the housing, the lock ring projecting from the first opening when the slider is in the third position.

In some embodiments, the support portion comprises an arm extending protrudingly from the pivot, the arm being pushable by the slider when the slider moves from the second position to the third position.

In some embodiments, the support portion includes a pair of the arms and a cross member connecting the pair of arms, a space being defined between the arms through which the slider pushes the cross member when the slider moves from the second position to the third position.

In some embodiments, the housing further comprises a stop shaft adapted to engage with the lock to retain the lock within the housing, the lock being movable past a convex profile of the stop shaft as the slider moves from the second position to the third position.

In some embodiments, the slider comprises a body portion comprising a lever at a side facing the housing, the housing comprising a second opening from which the lever is protrudingly disposed.

In some embodiments, the slider further comprises a lock extending from the body portion, wherein the lock is adapted to engage with a manipulation handle of the manipulation accessory in the third position to prevent operation of the manipulation accessory.

In some embodiments, the slider further comprises a push portion extending from the body portion, wherein the push portion is shaped to interact with the locking element.

In some embodiments, the pushing portion includes a hook shape to facilitate action of the slider relative to the lock when moving bi-directionally between the second position and the third position.

In some embodiments, the body portion further comprises a low portion and a high portion, wherein in the first position, the low portion is aligned with a position of a micro-switch disposed in the manipulation accessory such that the slider does not depress the micro-switch, and in the second position, the high portion is aligned with a position of the micro-switch such that the micro-switch is depressed via the high portion.

In some embodiments, the slider or the housing includes a detent portion at a portion corresponding to an operation position, via which a movement resistance of the slider with respect to the housing is increased.

According to a second aspect of the present disclosure, a switching device is provided. The switching device comprises a device body comprising a main shaft suitable for rotating to drive the movable contact to move so as to configure the switching device into an ON/OFF state; the steering attachment of the first aspect, adapted to be attached to the device body to control movement of the spindle.

Drawings

The above and other objects, features and advantages of the embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. In the drawings, several embodiments of the present disclosure are illustrated by way of example and not by way of limitation.

Fig. 1 shows an overall schematic view of a manipulation accessory according to an embodiment of the present disclosure.

Fig. 2 shows a schematic view of a first operating state of the manoeuvring accessory, wherein the manoeuvring handle is in a first position corresponding to the automatic mode.

Fig. 3 shows a schematic view of a second operating state of the control accessory, in which the control handle is in a second position corresponding to the manual mode.

Fig. 4 shows a schematic view of a third operating state of the manoeuvring accessory, wherein the manoeuvring handle is in a third position corresponding to a service mode.

Fig. 5 is a cross-sectional view of the manipulation accessory showing internal components of the manipulation accessory, wherein the manipulation accessory is in a first operational state.

Fig. 6 is a cross-sectional view of the manipulation accessory showing internal components of the manipulation accessory, wherein the manipulation accessory is in a second operational state.

Fig. 7 is a cross-sectional view of the manipulation accessory showing internal components of the manipulation accessory, wherein the manipulation accessory is in a third operational state.

Fig. 8 shows a perspective view of the slider from a first side.

Fig. 9 shows a perspective view of the slider from the second side.

Fig. 10 shows a top view of the slider acting with the controller with the portion of the slider in contact with the housing removed for ease of viewing.

Fig. 11 shows a perspective view of the locking element.

Like or corresponding reference characters designate like or corresponding parts throughout the several views.

Detailed Description

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The term "include" and variations thereof as used herein is meant to be inclusive in an open-ended manner, i.e., "including but not limited to". Unless specifically stated otherwise, the term "or" means "and/or". The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "upper," "lower," "front," "rear," and the like, refer to placement or positional relationships based on the orientation or positional relationship shown in the drawings, merely for convenience in describing the principles of the disclosure, and do not indicate or imply that the referenced elements must be in a particular orientation, constructed or operated in a particular orientation, and therefore should not be taken as limiting the disclosure.

The traditional switching of the operating state of the control accessory and the maintenance locking function are realized by two independent devices which operate independently of each other; however, in order to implement the maintenance function, there is a structural association between the two independent devices. This would mean that the user would need to know the relationship of the two devices simultaneously in operation and use and would have to operate the respective devices in a predetermined manner to achieve the desired operational effect. This would be very unfriendly to the user. The user is required to know both devices at the same time and to operate both devices separately during use, which may cause a troublesome use. Moreover, the chain of dimensions matched between the two devices is relatively long, which also places specific requirements on the installation and dimensions of the plant, increasing the cost of the plant.

In this regard, embodiments according to the present disclosure provide a manipulation accessory that integrates, through one component, functions that traditionally required two separate devices to accomplish. In other words, the manipulation of the accessory in a plurality of operating states and the service locking function are achieved by manipulating and locking one component, such as the component. The manipulation accessory 100 according to the embodiment of the present disclosure is explained in detail below with reference to the accompanying drawings.

Fig. 1 shows an overall view of a manipulation accessory 100 according to an embodiment of the present disclosure. As shown in fig. 1, the manipulation accessory 100 may include a housing 40 and a coupling 45, and the manipulation accessory 100 may be mounted to an apparatus main body. In some embodiments, the device body may comprise a spindle. The main shaft is adapted to rotate to drive the movable contact to move to configure the switching device in an ON/OFF state. The shaft coupling 45 may be coupled together with the main shaft of the apparatus main body to control the movement of the main shaft; thereby controlling the manipulation state of the apparatus main body.

In the illustrated embodiment, the housing 40 may include a first opening 42 and a second opening 44, and the steering accessory 100 may include a steering and locking assembly. The lever 12 of the steering and locking assembly may be disposed to protrude from the first opening 42. A user can move the handle 12 (up and down in the illustrated embodiment) to switch between different operating states of the steering attachment 100. The locking member 20 of the steering and locking assembly can selectively protrude from the second opening 44 according to different operating positions. In a state where the locking member 20 protrudes from the second opening 44, the user can lock on the locking member 20 with an additional lock; thereby preventing any operation of the manipulation accessory 100 by the user to ensure the safety of the manipulation accessory 100 in the maintenance state.

Considering that the focus of the present disclosure is on manipulating the accessory 100, the device body portion is not shown in the figures. The coupling 45 may be implemented in various forms as long as the linkage coupling of the manipulation accessory 100 and the device main body can be achieved. In some embodiments, the manipulation accessory 100 can manipulate the turning on and off of various switching devices via a handle linkage or linkage shaft. Non-limiting examples of switching devices include, for example, various types of switching devices such as circuit breakers, load switches, protection switches with leakage or arc quenching, and switches with one or more types of protection.

Fig. 2-4 respectively show schematic views of different operating states of the manipulation accessory 100.

In the state shown in fig. 2, the lever 12 of the slider 10 is at the upper end of the first opening 42; the lock ring 22 of the lock 20 is received in the second opening 44. The illustrated state may correspond to an automatic mode of manipulating the accessory 100. In the automatic mode, the controller that manipulates the accessory 100 can perform automatic operation for the switching device. In some embodiments, the manipulation accessory 100 can communicate with an external communication device in a short range or a long range to receive a control instruction. The controller controls the main shaft connected to the coupling 45 in response to the received control command to in turn drive the movable contact in the switchgear to move to the ON/OFF position.

In the state shown in fig. 3, the lever 12 is in the intermediate position of the first opening 42; the lock ring 22 of the lock 20 is received in the second opening 44. The illustrated state may correspond to a manual mode of manipulating the accessory 100. In the manual mode, the controller manipulating the accessory 100 cannot perform a corresponding action according to a remote control command issued to the controller.

In some embodiments, referring also to fig. 10, the steering accessory 100 can include a controller 60 in the form of a circuit board, and the controller 60 can include a switch 62. In some embodiments, the switch 62 may comprise a microswitch. The slider 10 can be caused to selectively press the switch 62 by moving the slider 10. For example, in the state shown in fig. 2, the switch 62 is pressed by the slider 10 to enable the controller to operate in the automatic mode; in the state shown in fig. 3, however, the switch 62 is not pressed by the slider 10, so that the controller cannot be operated in the automatic mode. In this case, the manipulation accessory 100 may allow a user to manually rotate the manipulation handle 70 to change the switching state of the switching device. It should be noted that the illustrated embodiment is merely exemplary, and in other embodiments, the switch 62 may implement the mode switching of the controller 80 in other manners. For example, in other embodiments, the switch 62 is pressed by the slider 10 to cause the controller to operate in an automatic mode; the switch 62 is not pressed by the slider 10 so that the controller does not operate in the automatic mode.

In the state shown in fig. 4, the lever 12 is in the lower end position of the first opening 42; the locking ring 22 of the locking member 20 protrudes from the second opening 44. The illustrated state may correspond to a service mode in which accessory 100 is manipulated. In the service mode, the manipulation accessory 100 does not allow a user to manually rotate the manipulation handle 70. In this case, since the lock ring 22 protrudes from the second opening 44, the user can visually and directly judge that the operating accessory 100 is in the maintenance mode. The lock ring 22 may be a ring-shaped structure to allow a user to lock the lock ring with other additional locks to prevent the user from forcefully manipulating the manipulation accessory 100 to cause damage to the manipulation accessory 100. It is worth noting that the above-described position of the lever 12 relative to the first opening is merely exemplary; the lever 12 can be located in other suitable positions.

The specific structure of the manipulation accessory 100 according to the embodiment of the present disclosure is explained in detail below with reference to fig. 5 to 7.

Fig. 5 is a sectional view showing the manipulation accessory 100 corresponding to the position shown in fig. 2, in which the manipulation accessory 100 is operated in the automatic mode. As shown in fig. 5, the steering attachment 100 includes a housing 40 and a steering and locking assembly. The steering and locking assembly is arranged in a housing 40. The steering and locking assembly comprises a slider 10 and a locking member 20 adapted to interact with the slider 10.

As shown in fig. 5, the locking member 20 is retained within the housing 40 when the slider 10 is in the first position (i.e., the accessory 100 is manipulated to operate in the automatic mode). The locking member 20 may be retained within the housing in a variety of ways. In some embodiments, the lock 20 may be pivotably retained within the housing 20 and may be retained within the housing 20 by a torsion spring. When the slider 10 moves from the second position to the third position, the slider 10 acts on the lock 20 to release the action of the torque spring on the lock, thereby enabling the lock 20 to rotate under the action of the torque spring to be able to at least partially protrude from the housing 40. The torsion spring may be, for example, a torsion spring, although it should be appreciated that other resilient members that apply a torsional force may be used.

Fig. 6 is a sectional view corresponding to the position shown in fig. 3, showing the manipulation attachment 100. When the user moves the slider 10 downward from the position of fig. 2, the slider 10 moves from the position shown in fig. 5 to the position shown in fig. 6. As shown in fig. 6, when the slider 10 is in the second position (i.e., the manipulation accessory 100 is operated in the manual mode), the slider 10 is still retained within the housing 20. For example, the slider 10 does not act on the locking member 20 during the movement of the slider from the first position to the second position, or even if it acts on the locking member 20, the holding action between the locking member 20 and the housing 40 cannot be released.

During the horizontal leftward movement (in the view shown in fig. 5) of the slider 10 from the state shown in fig. 5 to the state shown in fig. 6, the slider 10 is looped off the controller that manipulates the attachment 100. Therefore, the controller handling the accessory 100 cannot receive instructions to control the switching device. Nevertheless, the user can change the switching state of the switching device by rotating the operating handle 70, the rotation of the operating handle 70 driving the rotation of the corresponding gear mechanism and consequently the rotation of the coupling 45. In this state, manipulating the accessory 100 allows operating the switching device in manual mode.

Fig. 7 is a sectional view corresponding to the position shown in fig. 4, showing the manipulation attachment 100. As the user continues to move the slider 10 downward from the position of fig. 3, the slider 10 moves from the position shown in fig. 6 to the position shown in fig. 7. As shown in fig. 7, when the slider 10 is in the third position (i.e. the manoeuvring accessory 100 is in the maintenance mode), the slider 10 acts on the locking member 20 to cause pivotal movement of the locking member 20 relative to the housing 40, for example against the action of torsional forces. The locking member 20 can at least partially protrude from the housing 40 under the influence of a torsional force acting on the locking member 20.

In the state shown in fig. 7, the slider 10 can lock the operating handle 70 of the operating attachment 100 or the transmission 78 associated with the operating handle to prevent the user from manually operating the operating handle 70. At the same time, the lock ring 22 of the locking member 20 protrudes from the housing 40. The locking ring 22 may include an annular shape through which a user may lock the locking ring 22 with a latch. This prevents the user from operating the operation accessory 100, and ensures the safety of the maintenance mode.

According to the manipulation accessory 100 of the embodiment of the present disclosure, the manual and automatic switching function and the maintenance locking function of the manipulation accessory 100 are integrated into a single design, and the locking ring is automatically popped out when the slider 10 is moved to the maintenance position, thereby reducing the manipulation complexity of the manipulation accessory 100 and facilitating the user's use.

Fig. 8-9 show perspective views of the slider 10 at different angles according to embodiments of the present disclosure.

As shown in fig. 8-9, the slider 10 may include a body portion 15, the body portion 15 including a lever 12 on a side facing the housing 40, the housing 40 including a second opening 44, the lever 12 being protrudingly disposed from the second opening 44.

In some embodiments, the slider 10 may further comprise a locking portion 18 extending from the body portion 15, wherein in the third position of the slider 10, the locking portion 18 is adapted to engage with a manipulation handle 60 of a manipulation accessory to prevent operation of the manipulation accessory. The manipulation handle 70 or the manipulation handle transmission 78 may comprise a shape adapted to mate with the locking portion 18. In some embodiments, the locking portion 18 may be formed in the shape of a protrusion, and the manipulation handle or an actuator of the manipulation handle may include a socket, the rotation of the manipulation handle 70 being prevented by the engagement of the locking portion 18 and the socket. It is worth noting that the locking portion 18 may be formed in any other suitable shape. It is worth mentioning that, although in the illustrated embodiment, the main body portion 15 and the locking portion 18 are integrally formed, this is merely exemplary; in other embodiments, the body portion 15 and the locking portion 18 may be separate components and assembled together.

In some embodiments, the slider 10 further comprises a push portion 16 extending from the body portion 15, wherein the push portion 16 is formed into a shape adapted to interact with the locking member 20. When the slider 10 moves horizontally (see fig. 5 to 7), the pushing portions 16 will move together, the pushing portions 16 being disposed on the path of the locking member 20 that protrudes from the inside of the housing 40 toward the second opening 44. In particular, with the movement of the pushing portion 16, the pushing portion 16 will act on the locking member 20 to push the locking member 20 to be unlocked from the storage position stored in the housing 40, so that the locking member 20 can move (e.g., pivot) under the elastic force to protrude from the second opening 44.

The push portion 16 may include various implementations. In some embodiments, as shown in fig. 8, the pushing portion 16 may include a hook-shaped profile 162, the hook-shaped profile 162 being formed in a convex shape at a side close to the locking portion 18. This has advantages during the action of the pushing part 16 and the locking member 20. For example, in some embodiments, once the pushing portion 16 acts on the locking member 20 to push the locking member 20 to unlock from the storage position stored in the housing 40, the hook-shaped profile 162 of the pushing portion 16 may serve as a pivot guide for the locking member 20. For example, the hook-shaped profile 162 may support the loop of the locking ring 22 of the locking member 20 during pivoting of the locking member 22 relative to the housing 40, thereby ensuring smooth movement of the locking member 22.

Fig. 9 and 10 respectively show the details of the structure of the main body 15 and the functional schematic diagram of the controller 60 that can switch the switch state by the movement of the main body 15. As shown, the controller 60 may include a switch 62. The switch can be operated by the main body portion 15 of the slider 10 while the slider 10 is moving, so that the automatic mode and the manual mode of the manipulation switch are switched. In some embodiments, the body portion 15 may also include a switch. An example process of switching between the automatic mode and the manual mode of the manipulation switch is described below with a microswitch as an example of the switch 62.

In some embodiments, body portion 15 may include a high portion 154 and a low portion 152. In the first position of the slider 10 (i.e. with the manoeuvring accessory 100 in automatic mode), the lower portion 152 is aligned with the position of the microswitch 62 provided in the manoeuvring accessory 100 so that the slider 10 does not depress the microswitch 62. Thus, the manipulation accessory 100 operates in an automatic mode. In the second position of the slider 10 (i.e. with the manoeuvring accessory 100 in manual mode), the high portion 154 is aligned with the position of the microswitch 62 such that the microswitch 62 is pressed via the high portion 154. In some embodiments, microswitch 62 is pressed and is not able to perform the automatic control function of manipulating accessory 100. It is noted that the microswitch 62 may be operated in other ways, such as the switch 62 being depressed to implement an automatic control function for manipulating the accessory 100, not depressed without executing the automatic control function.

In the illustrated embodiment, a transition 156 may also be included between the low portion 152 and the high portion 154 to facilitate a smooth interaction with the micro-switch. The dimensions of the lower portion 152 may correspond to the arrangement of the dimensions of the switch 62, for example. The distance between the low portion 152 and the high portion 154 may be selected to correspond to the distance between the first position and the second position of the slider. The high portion 154 may be selected to be larger in size to ensure continued pressing action on the switch 62 during movement in the second and third positions.

Fig. 11 shows a schematic view of a lock 20 according to an embodiment of the present disclosure. As shown, the locking member 20 may include a locking ring 22 and a base 26 for supporting the locking ring 22, the locking ring 22 being capable of protruding from the second opening 44. The base 26 is disposed at an angle of flex relative to the shackle 22. This has the advantage of facilitating the interaction of the slider 10 with the base 26, in particular, during the movement of the locking ring 22. In addition, a guiding action for the movement of the locking ring 22 can also be provided.

In some embodiments, as shown in fig. 11, the base 26 includes a pivot 25 and a contact portion that extends protrudingly from the pivot 25. At the pivot 25, for example, a torsion spring may be installed. The locking member 20 may be twisted relative to the housing by the action of a torsion spring. The contact portion is adapted to interact with the slider, for example during horizontal movement of the slider 10, the slider 10 is adapted to push the contact portion such that the push portion pivots about the pivot 25, thereby enabling the locking member 20 as a whole to pivot about the pivot 25, such that the locking ring 22 of the locking member 20 protrudes from the second opening 44. The contact portion may be formed in a shape suitable for being pushed and disposed at a distance from the pivot 25 to enable the locking member 20 to pivot with an appropriate force.

In some embodiments, as shown in fig. 11, the base 26 may include a pair of arms 16 and a cross-beam 28 connecting the pair of arms 16. Such a configuration has the advantage of space efficiency and ensures that the locking member 20 can be moved with less force. A space is defined between the arms 16 through which the slider 10 pushes the cross beam 28 as the slider 10 moves from the second position to the third position. The locking member 20 is thereby pivoted entirely about the pivot 25 by moving the cross member 28.

In some embodiments, as shown in FIG. 11, the locking member 20 may further include a torsion spring mounting portion 24. For example, the torsion spring mount 24 may be arranged coaxially with the pivot shaft 25. The torsion spring mounting portion 24 may be provided with a snap groove, for example, to facilitate mounting of the spring. The spring may be conveniently mounted between the locking member 20 and the housing 40 by twisting the spring mounting portion 24. It should be appreciated that the illustrated torsion spring mount 24 is merely exemplary, and that the torsion spring mount 24 may be formed in any other suitable shape and other suitable location.

In some embodiments, the housing 40 further includes a stop shaft (not shown). The stopper shaft is adapted to engage with the locking member 20 to lock the locking member 20 at a predetermined position, and the locking member 20 can move over the stopper shaft when the slider 10 moves from the second position to the third position. The locking member 20 can be held in a position corresponding to the manual mode and the automatic mode with respect to the housing by actuation of the locking shaft. In some embodiments, the stop shaft may be shaped as a convexly contoured semi-cylinder, arcuate, or the like. It is worth mentioning that this is merely exemplary and the stopper shaft may be formed in any other suitable shape.

In some embodiments, as shown in fig. 5-8, the slider 10 and the housing 40 include detents 19, 59 that engage each other at locations corresponding to the operating positions. The resistance to movement of the slider 10 at the operating position relative to the housing 40 is increased via the detent portions. The catching portion may be formed in various structures. In the illustrated embodiment, the detent portion is formed in the shape of a protrusion and a recess. It should be understood that this is merely exemplary. The arrangement and shape of the click portion are not particularly limited as long as it can facilitate the holding of the slider 10 in a predetermined operating position with respect to the housing 40 and the movement when the user pushes the slider 10.

According to the manipulation accessory of the embodiment of the present disclosure, the lock member can be held within the housing by a torque action in the automatic mode and the manual mode, and the horizontal movement of the slider pushes the lock member to pivot the lock member relative to the housing so that the lock ring protrudes from the housing when switching from the manual mode to the maintenance mode.

Further, while operations are depicted in a particular order, this should be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (13)

1. A steering attachment, comprising:

a housing (40); and

a steering and locking assembly arranged in the housing (40) and comprising a slider (10) and a locking member (20) adapted to interact with the slider (10), wherein the locking member (20) is pivotably mounted to the housing (40),

wherein the slider (10) is slidably arranged in the housing (40) and is adapted to be linearly moved between a first position, in which the manipulation accessory is operated in an automatic mode, a second position, in which the manipulation accessory is operated in a manual mode, and a third position, in which the manipulation accessory is in a maintenance mode, arranged in sequence;

wherein the locking member (20) is retained within the housing (40) when the slider (10) is moved between the first position and the second position, the slider (10) acting on the locking member (20) when the slider (10) is moved from the second position to the third position, such that the locking member (20) is at least partially projectable from the housing (40).

2. The handling accessory according to claim 1, characterized in that said locking element (20) is kept in a predetermined position by a spring, wherein when said slider (10) moves from said second position to said third position, said slider (10) pushes said locking element (20) so that said locking element (20) pivots against a spring torque.

3. The handling attachment according to claim 1, wherein the housing (40) comprises a first opening (42), the locking element (20) comprises a locking ring (22) and a base (26) integrally arranged at an angle with respect to the locking ring (22), the base (26) comprising a pivot (25) adapted to be mounted to the housing (40), the locking ring (22) protruding from the first opening (42) when the slider (10) is in the third position.

4. Handling attachment according to claim 3, wherein the base (26) comprises a contact portion extending protrudingly from the pivot (25), which contact portion can be pushed by the slider (10) when the slider (10) is moved from the second position to the third position.

5. The handling attachment according to claim 4, wherein the base (26) comprises a pair of arms (16) and a cross-beam (28) connecting the pair of arms (16), a space being defined between the arms (16), through which the slider (10) pushes the cross-beam (28) when the slider (10) is moved from the second position to the third position.

6. Handling attachment according to any of claims 1-5, wherein the housing (40) further comprises a stop shaft adapted to engage with the locking member (20) to lock the locking member (20) in a predetermined position, the locking member (20) being movable over the stop shaft when the slider (10) is moved from the second position to the third position.

7. Handling attachment according to any one of claims 1-5, wherein the slider (10) comprises a body part (15), the body part (15) comprising a handling grip (12) on a side facing the housing (40), the housing (40) comprising a second opening (44), the handling grip (12) being arranged protruding from the second opening (44).

8. Handling attachment according to claim 7, wherein the slider (10) further comprises a locking portion (18) extending from the body portion (15), wherein the locking portion (18) is adapted to engage with a handling handle (60) of the handling attachment in the third position to prevent operation of the handling attachment.

9. Handling attachment according to claim 7, wherein the slider (10) further comprises a push portion extending from the body portion (15), wherein the push portion is shaped to interact with the locking element (20).

10. Handling attachment according to claim 9, characterised in that said pushing portion comprises a hook-like shape to facilitate the action of said slider (10) with respect to said locking member (20) when moving bidirectionally between said second position and said third position.

11. The manipulation accessory according to claim 7, wherein the main body portion (15) further comprises a low portion (152) and a high portion (154), wherein in the first position the low portion (152) is aligned with a position of a microswitch provided in the manipulation accessory such that the slider (10) does not press the microswitch, and in the second position the high portion (154) is aligned with a position of the microswitch such that the microswitch is pressed via the high portion (154).

12. Handling attachment according to claim 1, characterised in that the slide (10) or the housing (40) comprises a detent at a location corresponding to an operating position, via which detent the resistance to movement of the slide (10) relative to the housing (40) is increased.

13. A switchgear device, characterized in that it comprises

The device body comprises a main shaft and a movable contact, wherein the main shaft is suitable for rotating to drive the movable contact to move so as to configure the switch device into an ON/OFF state;

the steering attachment (100) according to any one of claims 1-12, adapted to be attached to the device body to control the movement of the main shaft.

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