Bidirectional operating mechanism for a switching device and switching device assembly
By employing an equal-angle design and idle angle setting in the bidirectional operating mechanism, and utilizing torsion springs and linkage assemblies, the problem of unstable operation in the prior art has been solved, achieving reliable and accurate positioning of the switchgear, simplifying the design and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SCHNEIDER ELECTRIC IND SAS
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-19
AI Technical Summary
Existing bidirectional operating mechanisms cannot guarantee the reliability and stability of the action under different angles or strokes, especially when the spring parameter design space is small, making it difficult to achieve bidirectional drive and accurate positioning.
A bidirectional operating mechanism is designed, including a housing, an operating handle, first and second drive members, a torsion spring, a connecting rod, and a free travel component. By using an equal-angle design and setting the free travel angle, the first and second drive members are ensured not to deform during the switching between the closing and opening states. Stable transmission is achieved by utilizing the free travel component and the biasing force of the torsion spring.
Stable transmission was achieved during the switching between closing and opening states, which simplified the mechanism design, reduced costs, and improved operational reliability and accurate positioning capabilities.
Smart Images
Figure CN224384118U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a bidirectional operating mechanism for a switchgear and a switchgear assembly. Background Technology
[0002] Currently, most operating mechanisms for disconnecting switches or circuit breakers on the market are manually controlled, with an external handle driving the closing and opening of the internal contact system. The handle also serves as a status indicator. A small number of automatic operating mechanisms can achieve this through the addition of an external drive module, but this type of drive typically operates directly on the handle, and the opening and closing indication functions require additional devices.
[0003] In existing bidirectional operating mechanisms, the angle or stroke of the bidirectional operating mechanism is different due to the need for pre-triggering or other reasons. In this case, in order to achieve the requirements of bidirectional drive and accurate positioning, the design space of the spring parameters in the mechanism becomes very small. When the spring error is relatively large, it is difficult to guarantee the reliability and stability of the bidirectional operating mechanism. Utility Model Content
[0004] To overcome the above problems, a bidirectional operating mechanism for a switchgear is provided, the bidirectional operating mechanism being mounted on the switchgear, the bidirectional operating mechanism comprising:
[0005] case;
[0006] The operating handle is rotatably mounted to the housing, can rotate between the closed and open positions, and indicates the closed and open positions;
[0007] The first drive unit is rotatably mounted to the housing, fixedly connected to the operating handle, and can rotate together with the operating handle;
[0008] The second drive unit is rotatably mounted to the housing and is operably connected to the first drive unit on one hand and to the contact mechanism of the switchgear on the other hand.
[0009] A first torsion spring has one end connected to a first driving element and the other end connected to a second driving element.
[0010] During the switching of the switchgear between the closed and open states, the first angle of rotation of the first drive member and the second angle of rotation of the second drive member are equal, so that the first torsion spring does not deform.
[0011] Advantageously, the second angle of rotation of the second drive member is equal to the sum of the transmission angle and the idle angle. During the rotation of the second drive member at the transmission angle, force can be transmitted between the second drive member and the contact mechanism of the switching device, and during the rotation of the second drive member at the idle angle, no force is transmitted between the second drive member and the contact mechanism of the switching device.
[0012] Advantageously, the bidirectional operating mechanism includes a travel-providing component disposed between the second drive member and the contact mechanism of the switching device, and configured to provide a travel angle for rotating the second drive member.
[0013] The idler assembly includes a first link and a second link. The first link is connected to the contact mechanism of the switchgear, and the second link is connected between the first link and the second drive member. The first link has a groove along its length, and the second link is connected to the groove of the first link via a pin. The pin of the second link is movable within the groove of the first link. The groove has a proximal end and a distal end, with the distal end being further away from the second drive member than the proximal end.
[0014] Advantageously, it also includes a second torsion spring, one end of which is operably connected to the second drive member and the other end fixed to the housing, configured to provide a biasing force that causes the pin of the second link to abut against the distal end of the groove.
[0015] Advantageously, it also includes an operating handle spring, one end of which is operably connected to the operating handle and the other end is fixed to the housing.
[0016] Advantageously, the first drive member has a body and a protrusion extending from the body toward the second drive member, the second drive member having a groove into which the protrusion of the first drive member extends.
[0017] The trench has a first end and a second end. Relative to a first direction, the first end of the trench is located downstream of the second end. The first direction corresponds to the rotation direction of the second drive member when the switchgear switches from a closed state to an open state.
[0018] When the switchgear is in the closed state, with the operating handle in the closed position, the protrusion of the first drive member is configured not to abut against either the first or second end of the groove, and the pin of the second link is configured to abut against the distal end of the groove of the first link.
[0019] When the switchgear is in the open position, and the operating handle is in the open position, the protrusion of the first drive member is configured to abut against the first end of the groove, and the pin of the second link is configured to abut against the proximal end of the groove of the first link.
[0020] Advantageously, the body of the first driving member is in the form of a disc, the second driving member is in the form of a disc, the protrusion has a first protruding portion and a second protruding portion, the first protruding portion and the second protruding portion are arranged in a longitudinal direction, and the dimension of the first protruding portion perpendicular to the longitudinal direction is larger than the dimension of the second protruding portion perpendicular to the longitudinal direction.
[0021] The operating handle is configured to move in the longitudinal direction between a first position and a second position, in the first position where a first protrusion of the first drive member is away from the groove of the second drive member, and in the second position where a first protrusion of the first drive member is close to the groove of the second drive member.
[0022] Advantageously, the trench includes a first trench portion and a second trench portion that communicate with each other, the first trench portion being located at a first end side and the second trench portion being located at a second end side. The first trench portion is sized to accommodate a first protrusion portion and a second protrusion portion, and the second trench portion is sized to accommodate a second protrusion portion but not a first protrusion portion. A joint is formed between the first trench portion and the second trench portion.
[0023] In the first position of the operating handle, the second protrusion can be accommodated within the first groove and the second groove.
[0024] In the second position of the operating handle, the first protrusion can be accommodated within the first groove.
[0025] Advantageously, when the switchgear is in the closed state, and the operating handle is in the closed position, the operating handle is in the first position, and the second protrusion is accommodated within the first groove portion and spaced apart from the first end and the second end.
[0026] When the operating handle rotates from the closed position to the open position under the action of external force, the first driving member rotates by a predetermined angle in the first direction, so that the second protrusion abuts against the first end of the groove, thereby driving the second driving member to rotate by an idle angle in the first direction. During this idle angle, the pin of the second link moves from the far end to the near end of the groove of the first link.
[0027] Advantageously, when the switchgear performs a tripping operation, the contact mechanism of the switchgear pushes the second drive member to rotate in the first direction by the abutment of the distal end of the groove of the first rod with the pin of the second rod. The second drive member drives the first drive member to rotate in the first direction via the first torsion spring. After the second drive member has rotated through the transmission angle, the second torsion spring passes through the dead point position, thereby causing the second drive member to continue to rotate in the first direction by the idle angle, so that the pin of the second link moves from the distal end of the groove of the first link to the proximal end.
[0028] Advantageously, the operating handle spring is configured such that when the operating handle is driven by the second drive member to rotate from the closed position to the open position, the operating handle spring passes through the dead point position before the second drive member has rotated the idle angle, thereby causing the first drive member to continue rotating in the first direction, such that the protrusion abuts against the first end of the groove.
[0029] Advantageously, when the switchgear is in the open state, and the operating handle is in the open position, the second protrusion abuts against the first end of the groove. When the operating handle is rotated from the open position to the closed position under the action of an external force, the operating handle is configured to move from the first position to the second position, such that the first protrusion is accommodated in the first groove. As the first drive member rotates in the second direction, the first protrusion abuts against the joint between the first groove and the second groove, thereby pushing the second drive member to rotate in the second direction through the idle angle. The pin of the second link moves from the proximal end to the distal end of the groove, and then the second drive member continues to rotate through the transmission angle.
[0030] Advantageously,
[0031] When the switchgear is in the open position and the operating handle is in the open position, during the closing operation, the contact mechanism of the switchgear, through the contact between the proximal end of the groove of the first rod and the pin of the second rod, pushes the second driving member to rotate in a second direction opposite to the first direction. Simultaneously, the second driving member pushes the second protrusion through the first end of the groove, thereby pushing the first driving member to rotate in the second direction, thus causing the operating handle to rotate in the second direction toward the closing position.
[0032] After the second drive member rotates through the transmission angle, the second torsion spring passes the dead point position, causing the second drive member to continue rotating in the second direction through the idle angle, causing the pin of the second connecting rod to move from the proximal end to the distal end of the groove in the first connecting rod.
[0033] When the operating handle is driven by the second driving member to rotate from the open position to the closed position, before the second driving member has rotated to the end of the idle angle, the operating handle spring passes through the dead point position, so that the first driving member continues to rotate in the second direction, causing the second protrusion to disengage from the first end of the groove.
[0034] Advantageously, it also includes a return spring disposed between the first drive member and the second drive member, which is compressed to store energy when the operating handle moves from the first position to the second position, thereby returning the operating handle from the second position to the first position.
[0035] This application also provides a switchgear assembly, characterized in that the switchgear assembly includes a switchgear and a bidirectional operating mechanism as described above, the bidirectional operating mechanism being mounted to the switchgear. Attached Figure Description
[0036] The above and other features and advantages of exemplary embodiments of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, which are for illustrative purposes only and are not intended to limit the scope of the present invention in any way, wherein:
[0037] Figure 1 A perspective view of a switchgear assembly according to this application is shown, with the switchgear in a closed state.
[0038] Figure 2 Show Figure 1 An enlarged view of the bidirectional operating mechanism of the switchgear assembly shown, with the switchgear in the closed state.
[0039] Figure 3 Show Figure 1 Another enlarged view of the bidirectional operating mechanism of the switchgear assembly shown, with the switchgear in the closed state.
[0040] Figure 4 A perspective view of a switchgear assembly according to this application is shown, with the switchgear in an open state.
[0041] Figure 5 Show Figure 4 An enlarged view of the bidirectional operating mechanism of the switchgear assembly shown.
[0042] Figure 6 A perspective view of the first drive element of the switching device assembly according to this application is shown.
[0043] Figure 7 A perspective view of the second drive element of the switching device assembly according to this application is shown. Detailed Implementation
[0044] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0045] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this disclosure may have fewer components, other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.
[0046] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Where the number of components is not specified, the number of components may be one or more; similarly, terms such as “a,” “the,” and “described” do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative orientations when the equipment is in use or as shown in the accompanying drawings; these relative orientations may change accordingly when the absolute position of the described object changes.
[0047] The following is combined Figures 1 to 7 This application describes a bidirectional operating mechanism. The operating mechanism of this application can be installed on switchgear, including but not limited to circuit breakers, contactors, solid-state circuit breakers, and disconnectors. Specifically, the operating mechanism is bidirectional, configured to operate in both forward and reverse directions. In forward operation, i.e., manual operation of the switchgear, the manual operation of the operating handle causes the switchgear to open or close. In reverse operation, i.e., the switchgear is electrically operated, the opening or closing operation of the switchgear causes the operating handle to rotate, thereby indicating whether to open or close.
[0048] Figure 1 A perspective view of a switchgear assembly according to a first embodiment of this application is shown. The switchgear assembly includes an operating mechanism 1 and a switchgear 2. The operating mechanism includes: a housing 11; an operating handle 12 rotatably mounted to the housing, rotatable between a closed position and an open position, and indicating the closed and open positions; a first drive member 13 rotatably mounted to the housing, fixedly connected to the operating handle, and rotatable together with the operating handle; and a second drive member 14 rotatably mounted to the housing, operably connected to the first drive member on one hand and operably connected to the switchgear on the other hand, particularly connected to the drive assembly of the switchgear via a transmission component.
[0049] A first torsion spring 15 is provided between the first driving member and the second driving member, with one end of the first torsion spring 15 connected to the first driving member and the other end connected to the second driving member.
[0050] During the switching of the switching equipment between the closed and open states, the first angle of rotation of the first driving member and the second angle of rotation of the second driving member are equal, so that the first torsion spring does not deform. That is to say, there is no angle difference between the first driving member and the second driving member in the closed and open states, thus ensuring that the first torsion spring does not deform.
[0051] One end of the operating handle spring 16 is operably connected to the operating handle 12, and the other end is fixed to the housing. By ensuring that there is no angular difference between the first drive member and the second drive member, the first torsion spring 15 and the operating handle spring 16 can be decoupled from each other, that is, the operating handle spring and the first torsion spring can be designed relatively independently of each other.
[0052] During the switching of the switchgear between the closed and open states, the second angle of rotation of the second drive member is equal to the sum of a transmission angle and a rest angle. During the rotation of the second drive member at the transmission angle, force can be transmitted between the second drive member and the contact mechanism of the switchgear. During the rotation of the second drive member at the rest angle, no force is transmitted between the second drive member and the contact mechanism of the switchgear.
[0053] In order to generate the idle angle of the second drive member, this application provides an idle providing component disposed between the second drive member and the contact mechanism of the switching device, and configured to provide an idle angle that causes the second drive member to rotate.
[0054] Specifically, in the example of this application, the idle travel providing component includes a first link 17 and a second link 18. The first link 17 is connected to the contact mechanism of the switching device, and the second link 18 is connected between the first link 17 and the second drive member 14. The first link 17 has a groove 171 disposed along the length direction of the first link. The second link is connected to the groove 171 of the first link 17 via a pin 181. The pin 181 of the second link is movable within the groove 171 of the first link. The groove has a proximal end and a distal end, with the distal end being further away from the second drive member than the proximal end.
[0055] The bidirectional operating mechanism also includes a second torsion spring 19, one end of which is operably connected to the second drive member and the other end is fixed to the housing, configured to provide a biasing force that causes the pin of the second link 18 to abut against the distal end of the groove.
[0056] The following is combined Figure 6 and Figure 7 Describe the structure of the first and second driving components.
[0057] The body 131 of the first drive member 13 is in the form of a disc, and the second drive member 14 is also in the form of a disc. The protrusion 132 has a first protrusion portion 1321 and a second protrusion portion 1322, which are arranged in a longitudinal direction perpendicular to the plane containing the disc of the second drive member. The dimension of the first protrusion portion perpendicular to the longitudinal direction is larger than the dimension of the second protrusion portion perpendicular to the longitudinal direction. When both the first and second protrusion portions are cylindrical, the diameter of the first protrusion portion is larger than the diameter of the second protrusion portion.
[0058] The operating handle 12 is configured to move in the longitudinal direction between a first position and a second position, in the first position, the first protruding portion of the protrusion 132 is away from the second drive member 14, and in the second position, the first protruding portion of the protrusion 132 is close to the second drive member 14.
[0059] The first protrusion 1321 extends longitudinally from the body 131, and the second protrusion 1322 extends longitudinally from the first protrusion 1321. In this case, the operating handle is "pushed" from the first position to the second position. However, it is also possible that the second protrusion extends longitudinally from the body, the first protrusion extends longitudinally from the second protrusion, and the dimension of the first protrusion perpendicular to the longitudinal direction is larger than the dimension of the second protrusion perpendicular to the longitudinal direction. In this case, the operating handle is "pulled" from the first position to the second position. In either case, in the first position, the first protrusion of the protrusion 132 is away from the second drive member 14, and in the second position, the first protrusion of the protrusion 132 is close to the second drive member 14.
[0060] The groove 141 of the second drive member 14 includes a first groove portion 144 and a second groove portion 145 that are connected to each other. The first groove portion is located at a first end side, and the second groove portion is located at a second end side. The first groove portion is sized to accommodate a first protrusion portion and a second protrusion portion, and the second groove portion is sized to accommodate a second protrusion portion but not a first protrusion portion. A joint portion 146 is formed between the first groove portion and the second groove portion.
[0061] The operation process of the bidirectional operating mechanism of the switchgear assembly of this application is described below.
[0062] like Figure 1 , Figure 2 , Figure 3 As shown, the switchgear is in the closed state, and the operating handle is in the closed position. At this time, the second protrusion 1322 of the first drive member 13 is located in the first groove 144, and the pin 181 of the second connecting rod 18 is located at the far end of the groove.
[0063] bidirectional tripping operation
[0064] When the operating handle is rotated from the closed position to the open position (clockwise in the figure, i.e., the first direction), the first drive member also rotates in the first direction, causing the second protrusion 1322 to rotate through a predetermined angle (i.e., a travel distance) within the first groove 144. When the second protrusion 1322 abuts against the first end of the groove, it pulls the second drive member 14 to rotate together in the first direction. The second drive member 14 first rotates through a travel distance angle, during which the second drive member 14 drives the pin 181 of the second link from the far end of the groove to the near end of the groove. Then, the second drive member rotates through a transmission angle, driving the contact mechanism of the switchgear to actuate via the second link. Finally, in the open state of the switchgear, as... Figure 4 and Figure 5 As shown, the second protrusion 1322 abuts against the first end of the groove, and the pin 181 of the second connecting rod 18 abuts against the near end of the groove.
[0065] When the switchgear switches from the closed state to the open state, the contact mechanism of the switchgear pushes the second rod and, in turn, the second driving member to rotate in the first direction by abutting the pin of the second rod through the far end of the groove of the first rod. First, the second driving member rotates through a transmission angle, during which time the second driving member rotates in the first direction via the first torsion spring. After the second driving member has rotated through the transmission angle, the second torsion spring passes its dead point position, thereby driving the second driving member to continue rotating in the first direction by a travel angle, causing the pin 181 of the second connecting rod to move from the far end of the groove to the near end. Before the second driving member has rotated through the entire travel angle, the operating handle spring 16 passes its dead point position, causing the first driving member to continue rotating in the first direction, causing the second protrusion 1322 to abut against the first end of the groove, ultimately reaching... Figure 4 and Figure 5 The location shown.
[0066] bidirectional closing operation
[0067] When the operating handle is rotated from the open position to the closed position (in the counterclockwise direction shown in the figure, i.e., the second direction), in order to enable the operating handle to drive the second driving component to rotate, the operating handle is moved from the first position to the second position, so that the first protrusion 1321 extends into the first groove.
[0068] When the operating handle, together with the first drive member 13, rotates a predetermined angle (idle travel) in the second direction, the first protrusion 1321 abuts against the engagement portion 146, which causes the second drive member 14 to rotate together in the second direction. The second drive member 14 first rotates through an idle travel angle, during which time the second drive member 14 drives the pin 181 of the second link from the proximal end of the groove to the distal end of the groove. Then, the second drive member rotates through a transmission angle, actuating the contact mechanism of the switching device via the second link. Finally, it reaches... Figures 1 to 3 The circuit breaker is shown in the closed state.
[0069] When the switchgear switches from the open state to the closed state, the contact mechanism of the switchgear pushes the second rod through the contact between the near end of the groove of the first rod and the pin of the second rod, thereby pushing the second drive member to rotate in the second direction. First, the second drive member rotates through a transmission angle. During this period, the second drive member rotates in the second direction through the contact between the second protrusion and the first end. After the second drive member has rotated through the transmission angle, the second torsion spring passes its dead point position, thereby driving the second drive member to continue rotating in the second direction by an idle angle, causing the pin 181 of the second link to move from the near end of the groove to the far end. Before the second drive member has rotated through the entire idle angle, the operating handle spring 16 passes its dead point position, causing the first drive member to continue rotating in the first direction, causing the second protrusion 1322 to disengage from the contact with the first end of the groove, finally reaching... Figures 1 to 3 The location shown.
[0070] To facilitate the movement of the operating handle from the second position to the first position, a return spring, such as a compression spring, is provided between the first and second driving members. When the operating handle moves from the first position to the second position, the return spring is compressed and stores energy, which is used to return the operating handle to the first position.
[0071] This application also proposes a switchgear assembly comprising the aforementioned operating mechanism and a switchgear. The switchgear can be any type of switch. A second drive element of the operating mechanism is connected to the switchgear via any suitable transmission mechanism to enable the switchgear to perform opening and closing operations. Such transmission mechanisms can be specifically designed by those skilled in the art as needed, and are not the focus of this document; therefore, they will not be described further.
[0072] The operating mechanism of this application allows the first driving component to drive the second driving component, enabling the opening and closing operations of the switchgear. Alternatively, the second driving component can drive the first driving component, allowing the operating handle to accurately indicate the opening and closing positions. Furthermore, the idle travel providing component of this application provides an idle travel angle to the second driving component, eliminating any angular difference between the first and second driving components. This decouples the first torsion spring and the operating handle spring, simplifying the design and reducing costs.
[0073] Although the present invention has been described in the specification and illustrated in the accompanying drawings with reference to various embodiments, those skilled in the art will understand that the above embodiments are merely preferred embodiments, and some technical features in the embodiments may not be necessary for solving specific technical problems, so these technical features may be omitted or omitted without affecting the solution to the technical problem or the formation of the technical solution; moreover, the features, elements and / or functions of one embodiment may be appropriately combined, combined or coordinated with the features, elements and / or functions of one or more other embodiments, unless such combination, combination or coordination is obviously not feasible.
Claims
1. A bidirectional operating mechanism for a switchgear, the bidirectional operating mechanism (1) being mounted to a switchgear (2), the bidirectional operating mechanism comprising: Shell (11); The operating handle (12) is rotatably mounted to the housing and can rotate between the closed and open positions, indicating the closed and open positions; The first drive unit (13) is rotatably mounted to the housing and fixedly connected to the operating handle, and can rotate together with the operating handle; The second drive unit (14) is rotatably mounted to the housing and is operably connected to the first drive unit on one hand and to the contact mechanism of the switchgear on the other hand. The first torsion spring (15) is connected at one end to the first driving member and at the other end to the second driving member. The feature is that, during the switching of the switching equipment between the closed state and the open state, the first angle of rotation of the first driving member and the second angle of rotation of the second driving member are equal, so that the first torsion spring does not deform.
2. The bidirectional operating mechanism as described in claim 1, characterized in that, The second angle of rotation of the second drive member is equal to the sum of the transmission angle and the idle angle. During the rotation of the second drive member at the transmission angle, force can be transmitted between the second drive member and the contact mechanism of the switching device. During the rotation of the second drive member at the idle angle, no force is transmitted between the second drive member and the contact mechanism of the switching device.
3. The bidirectional operating mechanism as described in claim 2, characterized in that, The bidirectional operating mechanism includes a travel-providing component disposed between the second drive member and the contact mechanism of the switching device, and configured to provide a travel angle for rotating the second drive member. The idler assembly includes a first link (17) and a second link (18). The first link is connected to the contact mechanism of the switchgear, and the second link is connected between the first link and the second drive member. The first link has a groove (171) arranged along the length direction of the first link. The second link is connected to the groove of the first link via a pin (181). The pin of the second link is movable within the groove of the first link. The groove has a proximal end and a distal end, with the distal end being further away from the second drive member than the proximal end.
4. The bidirectional operating mechanism as described in claim 3, characterized in that, It also includes a second torsion spring (19), one end of which is operably connected to the second drive member and the other end is fixed to the housing.
5. The bidirectional operating mechanism as described in claim 4, characterized in that, It also includes an operating handle spring (16), one end of which is operably connected to the operating handle and the other end is fixed to the housing.
6. The bidirectional operating mechanism as described in claim 5, characterized in that, The first drive member has a body (131) and a protrusion (132) extending from the body toward the second drive member, the second drive member having a groove (141) into which the protrusion of the first drive member extends. The trench has a first end (142) and a second end (143). The first end of the trench is located downstream of the second end relative to a first direction, which corresponds to the rotation direction of the second drive member when the switchgear switches from a closed state to an open state. When the switchgear is in the closed state, with the operating handle in the closed position, the protrusion of the first drive member is configured not to abut against either the first or second end of the groove, and the pin of the second link is configured to abut against the distal end of the groove of the first link. When the switchgear is in the open position, and the operating handle is in the open position, the protrusion of the first drive member is configured to abut against the first end of the groove, and the pin of the second link is configured to abut against the proximal end of the groove of the first link.
7. The bidirectional operating mechanism as described in claim 6, characterized in that, The body of the first driving component is in the form of a disk. The second driving component is in the form of a disc. The protrusion has a first protrusion portion (1321) and a second protrusion portion (1322), the first protrusion portion and the second protrusion portion are arranged in the longitudinal direction, and the dimension of the first protrusion portion perpendicular to the longitudinal direction is larger than the dimension of the second protrusion portion perpendicular to the longitudinal direction. The operating handle is configured to move in the longitudinal direction between a first position and a second position, in the first position where a first protrusion of the first drive member is away from the groove of the second drive member, and in the second position where a first protrusion of the first drive member is close to the groove of the second drive member.
8. The bidirectional operating mechanism as described in claim 7, characterized in that, The groove includes a first groove portion (144) and a second groove portion (145) that are connected to each other. The first groove portion is located at a first end side, and the second groove portion is located at a second end side. The first groove portion is sized to accommodate a first protrusion and a second protrusion, and the second groove portion is sized to accommodate a second protrusion but not a first protrusion. A joint is formed between the first groove portion and the second groove portion. In the first position of the operating handle, the second protrusion can be accommodated within the first groove and the second groove. In the second position of the operating handle, the first protrusion can be accommodated within the first groove.
9. The bidirectional operating mechanism as described in claim 8, characterized in that, When the switchgear is in the closed state, and the operating handle is in the closed position, the operating handle is in the first position, and the second protrusion is accommodated within the first groove portion and spaced apart from the first end and the second end. When the operating handle rotates from the closed position to the open position under the action of external force, the first driving member rotates by a predetermined angle in the first direction, so that the second protrusion (1322) abuts against the first end of the groove, thereby driving the second driving member to rotate by an idle angle in the first direction. During this idle angle, the pin of the second link moves from the far end to the near end of the groove of the first link.
10. The bidirectional operating mechanism as described in claim 9, characterized in that, When the switchgear performs a tripping operation, the contact mechanism of the switchgear pushes the second drive member to rotate in the first direction by the contact between the far end of the groove of the first rod and the pin of the second rod. The second drive member drives the first drive member to rotate in the first direction via the first torsion spring (15). After the second drive member has rotated through the transmission angle, the second torsion spring (19) passes through the dead point position, so that the second drive member continues to rotate in the first direction by the idle angle, so that the pin of the second link moves from the far end of the groove of the first link to the near end.
11. The bidirectional operating mechanism as described in claim 10, characterized in that, The operating handle spring (16) is configured such that when the operating handle is driven by the second drive member to rotate from the closed position to the open position, the operating handle spring passes through the dead point position before the second drive member has rotated the idle angle, so that the first drive member continues to rotate in the first direction, and the protrusion abuts against the first end of the groove.
12. The bidirectional operating mechanism as described in claim 8, characterized in that, When the switchgear is in the open state, and the operating handle is in the open position, the second protrusion (1322) abuts against the first end of the groove. When the operating handle is rotated from the open position to the closed position under the action of external force, the operating handle is configured to move from the first position to the second position, so that the first protrusion is accommodated in the first groove. As the first drive member rotates along the second direction, the first protrusion (1321) abuts against the joint (146) between the first groove and the second groove, thereby pushing the second drive member to rotate along the second direction through the idle angle. The pin of the second link moves from the proximal end of the groove to the distal end, and then the second drive member continues to rotate through the transmission angle.
13. The bidirectional operating mechanism as described in claim 8, characterized in that, When the switchgear is in the open position and the operating handle is in the open position, during the closing operation, the contact mechanism of the switchgear, through the contact between the proximal end of the groove of the first rod and the pin of the second rod, pushes the second driving member to rotate in a second direction opposite to the first direction. Simultaneously, the second driving member pushes the second protrusion through the first end of the groove, thereby pushing the first driving member to rotate in the second direction, thus causing the operating handle to rotate in the second direction toward the closing position. After the second drive member rotates through the transmission angle, the second torsion spring passes the dead point position, causing the second drive member to continue rotating in the second direction through the idle angle, causing the pin of the second connecting rod to move from the proximal end to the distal end of the groove in the first connecting rod. When the operating handle is driven by the second driving member to rotate from the open position to the closed position, before the second driving member has rotated to the end of the idle angle, the operating handle spring passes through the dead point position, so that the first driving member continues to rotate in the second direction, causing the second protrusion to disengage from the first end of the groove.
14. The bidirectional operating mechanism as described in claim 13, characterized in that, It also includes a return spring disposed between the first drive member and the second drive member. When the operating handle moves from the first position to the second position, the return spring is compressed to store energy, thereby causing the operating handle to return from the second position to the first position.
15. A switchgear assembly, characterized in that, The switchgear assembly includes a switchgear and a bidirectional operating mechanism as claimed in any one of claims 1-14, the bidirectional operating mechanism being mounted to the switchgear.