CN217086502U - Control accessory and switch device - Google Patents

Abstract

The present disclosure relates to a control accessory and a switchgear. The steering attachment comprises a housing (40) and a steering and locking assembly comprising a slider (10) and a locking member (20) adapted to interact with the slider (10). The slider (10) is slidably disposed in the housing (40). In the first position, operating the accessory in an automatic mode, in the second position, operating the accessory in a manual mode, and in the third position, operating the accessory in a maintenance mode; in the first position and the second position, the slider (10) constrains the locking member (20) towards the inside of the housing (40) so that the locking member (20) can be retained within the housing (40), and in the third position, the slider (10) is at least partially unconstrained 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 manual control in the field. 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 handling accessory and a switchgear device aimed at solving one or more of the above-mentioned problems and other potential problems.

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, 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 in the first position and the second position the slider constrains the locking element towards the interior of the housing such that the locking element can be retained within the housing, and in the third position the slider at least partially releases the constraint such that the locking element can 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, by the restraint of the locking member by the slider, the interlocking of the slider and the locking member can be achieved in a simple manner.

In some embodiments, the slider comprises an integrally formed body portion and an extension arm, wherein the body portion comprises a lever on a side facing the housing, wherein the extension arm constrains the locking element to different degrees depending on the position of movement of the slider.

In some embodiments, the extension arm includes a linear extension and a bend, wherein the bend includes a notched portion, wherein in the first position the linear extension is aligned with the lock to restrain the lock, and in the third position the bend is aligned with the lock to at least partially release the restraint via the notched portion.

In some embodiments, the linear extension further comprises a locking portion located on an opposite side of the curved portion, wherein in the third position, the locking portion engages with a manipulation handle of the manipulation accessory to prevent operation of the manipulation accessory.

In some embodiments, the housing includes a first opening from which the lever is protrudingly disposed.

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 and the housing include, at a portion corresponding to the operating position, detent portions that engage with each other, via which a movement resistance of the slider with respect to the housing is increased.

In some embodiments, the housing includes a second opening, the lock includes a lock ring and a base for supporting the lock ring, the lock ring is capable of protruding from the second opening, the base is engaged with the slider in the first position and the second position; in the third position, the base is at least partially disengaged from the slide.

In some embodiments, the base includes a pivotably disposed roller, wherein the lock engages the slider via the roller.

In some embodiments, the locking element is resiliently suspended from the housing by a spring and is configured to move linearly relative to the housing, the spring being arranged to eject from the second opening by means of a spring force.

In some embodiments, the lock includes a pair of spring attachments symmetrically arranged with respect to the lock ring, one end of the spring being attached to the respective spring attachment.

In some embodiments, the housing further includes a guide rail linearly extending in an up-down direction, wherein the pair of spring attachment portions are shaft-shaped and engage with the guide rail to guide the locking member to linearly move.

According to a second aspect of the present disclosure, a switching device is provided. The switching device includes: 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 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.

Fig. 12 shows the structural details of the lock member in a state of being mounted to the housing.

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". The term "or" means "and/or" unless specifically stated otherwise. 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. Furthermore, the chain of dimensions matching 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's multiple operating states and the service locking function are achieved by manipulating and locking one component, 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. The user can move the lever 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 the attachment; 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 apparatus main body can be achieved. In some embodiments, the manipulation accessory 100 can manipulate the turning on and off of various switching devices through a handle linkage or a 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 handling the accessory 100 can perform automatic operations 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 thereby drive the movable contacts 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. 8, the manipulation 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 not 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 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 is noted that the illustrated embodiment is merely exemplary, and in other embodiments, the switch 62 may be otherwise operated to effect mode switching of the controller 80.

In the state shown in fig. 4, the manipulation handle 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 the 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 slider 10 presses the locking member 20 towards the inside of the casing 40 when the slider 10 is in the first position (i.e. the handling accessory 100 operates in automatic mode). The locking member 20 is held in the housing 40 against movement by the pressing of the slider 10.

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 manoeuvring accessory 100 is operated in manual mode), the slider 10 still presses the locking member 20 towards the inside of the housing 40. The locking member 20 is still held in the housing 40 against movement by the pressing of the slider 10.

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 at least partially relieves the hold down for the locking member 20. Due to the release of the pressing (at least partial or complete release), the locking member 20 can at least partially protrude from the housing 40.

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 locking ring 22 of the locking member 20 protrudes from the housing 40. The locking ring 22 may include an annular shape, and a user may lock the locking ring 22 with a latch through the annular body. 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, slider 10 may include an integrally formed body portion 15 and extension arm 18. The body portion 15 comprises a lever 12 on the side facing the housing 40. The extension arm 18 is formed in a suitable shape to be able to restrain the locking member 20 to different degrees depending on the moving position of the slider 10. In some embodiments, the linkage of the different operating positions may be achieved by a shape coupling between the extension arm 18 and the locking member 20. It is worth noting that although in the illustrated embodiment, the body portion 15 and the extension arm 18 are integrally formed, this is merely exemplary; in other embodiments, the body portion 15 and the extension arm 18 may be assembled together.

Extension arm 18 may include various implementations. In some embodiments, as shown in fig. 8, extension arm 18 may include a linear extension 186 and a curved portion 184. The bent portion 184 includes a notch portion 182. Slide 10 is in a first position and a second position (see fig. 5 and 6), linear extension 186 is aligned with lock 20 to constrain lock 20, and in a third position of manoeuvring accessory 100, bend 184 is aligned with lock 20 to at least partially release the constraint via notch 182. Thus, the interaction between extension arm 18 and locking member 20 can be achieved with a simple shape.

The linear extension 186 may provide a continuous hold down action for the locking member 20. In the illustrated embodiment, the linear extension 186 is formed in a linear shape, which is merely exemplary. In other embodiments, the linear extension 186 may be formed in any other suitable shape as long as the linear extension 186 can maintain a continuous pressing action on the locking member 20 during the movement of the slider 10 from the first position to the second position to prevent the locking member 20 from protruding from the second opening.

In some embodiments, as shown in fig. 8, the linear extension 186 may also include a locking portion 188 located on the opposite side of the bend 184. In the third position, the locking portion 188 engages with the manipulation handle of the manipulation accessory 100 to prevent operation of the manipulation accessory 100. The manipulation handle or a transmission member of the manipulation handle may comprise a shape adapted to mate with the locking portion 188. In some embodiments, the locking portion 188 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 mating of the locking portion 188 and the socket. It is worth noting that the locking portion 188 may be formed in any other suitable shape.

Fig. 9 and 10 show the details of the structure of the main body 15 and the functional principle of the controller 60 that can switch the switch state by the movement of the main body 15, respectively. 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, the body portion 15 may include a high portion and a low portion. 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 the 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. It is noted that the microswitch 62 can be operated in other ways, such as the switch 62 being depressed to implement an automatic control function that manipulates 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 24 for supporting the locking ring 22, the locking ring 22 being capable of protruding from the second opening 44, the base 24 being engaged with the slider 10 to restrain the locking member 20 in the housing 40 in the manual mode and the automatic mode of the manipulation switch; in the maintenance mode of the pilot switch, the base 24 is at least partially disengaged from the slider 10 to release the locking member 20, whereby the locking ring 20 can protrude from the second opening 44.

The base 24 may be implemented in various forms. In some embodiments, the base 24 includes a roller 28 that is pivotably disposed. The locking member 20 is engaged with the slider 10 by means of the roller 28. In this case, the movement resistance between the locking member 20 and the slider 10 can be reduced, reducing the click feeling.

In some embodiments, the locking member 20 is resiliently suspended from the housing 40 by a spring 50 and is configured to move linearly relative to the housing 40. In the illustrated embodiment, as shown in FIGS. 5-7, the spring 50 may continue to exert an upward force on the locking member 20; and once the slider 10 releases or partially releases the restraining force on the locking member 20, the locking member 20 moves upward under the spring force to protrude from the second opening 44.

In some embodiments, as shown in fig. 11, the locking member 20 may include a pair of spring attachments 26 symmetrically arranged with respect to the locking ring 22 and a pair of springs 50 may be symmetrically disposed. One end of the spring 50 is attached to the corresponding spring attachment portion 26; the other end may be attached to the housing 40, such as to a shaft 48 of the housing.

In some embodiments, as shown in fig. 12, the housing 40 may further include a guide rail 46 linearly extending in the up-down direction at the second opening 44. The pair of spring attachment portions 26 may be shaft-shaped and engage the guide rails to guide the linear movement of the locking member 20. In this case, the movement of the locking member 20 in the direction of the second opening 44 can be conveniently guided by the spring attachment 26.

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, in the automatic mode and the manual mode, the slider constrains the locking member toward the inside of the housing so that the locking member can be held within the housing, and when switching from the manual mode to the maintenance mode, the horizontal movement of the slider at least partially releases the horizontal constraint of the housing on the locking member, and the locking member can linearly move relative to the housing so that the locking ring protrudes from the housing.

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 was chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the market, 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 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 in the first position and the second position the slider (10) constrains the locking element (20) towards the inside of the housing (40) such that the locking element (20) can be retained within the housing (40), and in the third position the slider (10) at least partially releases the constraint such that the locking element (20) can at least partially protrude from the housing (40).

2. Handling attachment according to claim 1, characterized in that the slider (10) comprises an integrally formed body part (15) and an extension arm (18), wherein the body part (15) comprises a handling grip (12) on the side facing the housing (40), wherein the extension arm (18) is shaped to constrain the locking element (20) to different degrees as regards the position of movement of the slider (10).

3. The handling attachment of claim 2, wherein the extension arm (18) comprises a linear extension (186) and a bend (184), wherein the bend (184) comprises a cutaway portion (182), wherein in the first position and the second position the linear extension (186) is aligned with the lock (20) to restrain the lock (20), and in the third position the bend (184) is aligned with the lock (20) to at least partially release the restraint via the cutaway portion (182).

4. The manipulation accessory according to claim 3, wherein the linear extension (186) further comprises a locking portion (188) on a side opposite the curved portion (184), wherein in the third position the locking portion (188) engages with a manipulation handle of the manipulation accessory to prevent operation of the manipulation accessory.

5. Handling attachment according to claim 2, characterized in that the housing (40) comprises a first opening (42), the handling shank (12) being arranged protruding from the first opening (42).

6. The manipulation accessory according to claim 2, 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).

7. Handling attachment according to claim 1, characterised in that the slide (10) and the housing (40) comprise, at a location corresponding to an operating position, a detent (19, 49) engaging with each other, via which detent the resistance to movement of the slide (10) relative to the housing (40) is increased.

8. Handling attachment according to any one of claims 1-7, wherein the housing (40) comprises a second opening (44), the locking element (20) comprising a locking ring (22) and a base (24) for supporting the locking ring (22), the locking ring (22) being projectable from the second opening (44), the base (24) being engaged with the slide (10) in the first and second positions, and the base (24) being at least partially disengaged from the slide (10) in the third position.

9. The steering attachment according to claim 8, characterized in that the base (24) comprises a pivotably arranged roller (28), wherein the locking member (20) engages with the slide (10) via the roller.

10. Handling attachment according to claim 8, wherein the lock (20) is resiliently suspended on the housing (40) by a spring (50) and configured to move linearly relative to the housing (40), the spring (50) being arranged to be ejected from the second opening (44) by means of a spring (50) force.

11. Handling attachment according to claim 10, characterized in that the locking element (20) comprises a pair of spring attachments (26) arranged symmetrically with respect to the locking ring (22), one end of the spring (50) being attached to the respective spring attachment (26).

12. The handling attachment according to claim 11, wherein the housing (40) further comprises a guide rail (46) extending linearly in an up-down direction, wherein the pair of spring attachment portions (26) are shaft-shaped and engage with the guide rail to guide the locking member (20) to move linearly.

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 manipulation accessory (100) of any one of claims 1-12, adapted to be attached to the device body to control movement of the spindle.

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