Operating mechanism of isolating switch

By designing a dual-axis drive operating mechanism, the linkage mechanism and energy storage mechanism are used to realize the synchronous rotation of the two shafts, which solves the problem of large load on and off-synchronization of the isolating switch shaft, and realizes labor-saving synchronous operation and large-capacity switching.

CN222775206UActive Publication Date: 2025-04-18DONGGUAN ZHONGHUI RUIDE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202421543785.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-01
Publication Date
2025-04-18
Estimated Expiration
2034-07-01

AI Technical Summary

Technical Problem

The shaft load of the isolating switch is large and difficult to rotate, and the multi-layer switching unit is prone to problems such as conduction and disconnection.

Method used

A two-axis drive operating mechanism is designed to achieve synchronous rotation of the two shafts by means of a first rotating shaft and a second rotating shaft arranged side by side, and a linkage mechanism and an energy storage mechanism are used to reduce the load of a single shaft, and automatically open the gate through an electromagnetic mechanism.

Benefits of technology

It effectively reduces the load on a single shaft, avoids the problem of out-of-synchronization of conduction and disconnection, realizes synchronous closing and opening, and saves labor to operate, meets the needs of large-capacity switching and disconnection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an operating mechanism of an isolating switch, which comprises an actuating mechanism and a linkage mechanism, the actuating mechanism comprises a first rotating shaft and a second rotating shaft which are arranged side by side, and the linkage mechanism is arranged between the first rotating shaft and the second rotating shaft and is used for linking the first rotating shaft and the second rotating shaft. Therefore, the first rotating shaft and the second rotating shaft rotate in the same direction and stop synchronously. The operating mechanism of the disconnecting switch is a double-shaft driving mechanism, the load of a single rotating shaft can be reduced, the number of layers of contact assemblies loaded on each rotating shaft is avoided, meanwhile, synchronous closing and synchronous opening of the two rotating shafts are achieved by means of the lever effect of the linkage mechanism, labor is saved, and the large-capacity connection and disconnection requirements can be met.
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Description

Technical Field

[0001] The utility model relates to the technical field of circuit switch devices, in particular to an operating mechanism of an isolating switch. Background Art

[0002] Isolating switch is a switch device mainly used to isolate power supply, switch operation, and connect and disconnect current circuit. When the isolating switch is open, there is an insulation distance that meets the specified requirements and an obvious disconnection mark between the contacts; when closed, it can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time.

[0003] The isolating switch is mainly composed of an operating mechanism and a switching mechanism, wherein the switching mechanism includes a moving contact and a stationary contact, wherein the moving contact assembly is transmission-connected to the operating assembly through a rotating shaft, and the rotation of the rotating shaft drives the moving contact to rotate, thereby realizing the contact conduction or separation and disconnection between the moving contact and the stationary contact, thereby realizing opening and closing of the switch.

[0004] At present, in order to achieve switching of multiple circuits, the isolating switch usually sets the switch mechanism as a multi-layer switch unit. The multi-layer switch units are stacked in the axial direction of the rotating shaft, which not only causes a large load on a single rotating shaft and requires a large force to bend the rotating shaft, but also a single rotating shaft is loaded with too many layers of switch units, which easily leads to the phenomenon that the upper and lower contacts are not turned on and off synchronously. Utility Model Content

[0005] The main purpose of the utility model is to provide an operating mechanism for an isolating switch, aiming to solve the problem that the rotating shaft in the isolating switch has a heavy load and is difficult to rotate.

[0006] To achieve the above-mentioned purpose, the operating mechanism of the isolating switch proposed in the utility model includes an actuator, a linkage mechanism and an operating handle, the actuator includes a first rotating shaft and a second rotating shaft arranged side by side, the linkage mechanism is arranged between the first rotating shaft and the second rotating shaft, and is used to link the first rotating shaft and the second rotating shaft so that the first rotating shaft and the second rotating shaft rotate in the same direction and stop synchronously, and the operating handle is drivingly connected to one of the first rotating shaft and the second rotating shaft to drive the actuator and the linkage mechanism to rotate synchronously.

[0007] In one embodiment, the linkage mechanism includes a first link, a second link, a third link and a fourth link, a first connecting hole is opened in the middle of the first link, a second connecting hole is opened in the middle of the second link, the first rotating shaft is passed through the first connecting hole to be fixedly connected to the first link, the second rotating shaft is passed through the second connecting hole to be fixedly connected to the second link, one end of the third link is rotatably connected to the first link, the other end of the third link is rotatably connected to the second link, one end of the fourth link is rotatably connected to an end of the first link facing away from the third link, the other end of the fourth link is rotatably connected to an end of the second link facing away from the third link, and the first link, the second link, the third link and the fourth link constitute a parallelogram linkage mechanism.

[0008] In one embodiment, the operating mechanism further includes an energy storage mechanism and a trigger mechanism, the energy storage mechanism includes a first spring drivingly connected to the first rotating shaft, and the trigger mechanism includes a telescopic member, and the telescopic member abuts against the first rotating shaft or the second rotating shaft. When the first spring is in a stretched state, the telescopic member abuts against the first rotating shaft or the second rotating shaft to keep the actuator and the linkage mechanism stationary, and when the telescopic member is retracted, the actuator and the linkage mechanism rotate synchronously under the action of the first spring.

[0009] In one embodiment, the energy storage mechanism also includes a second spring transmission-connected to the second rotating shaft, the torque direction of the second spring on the second rotating shaft is consistent with the torque direction of the first spring on the first rotating shaft, and the first spring and the second spring jointly drive the first rotating shaft and the second rotating shaft to rotate in the same direction.

[0010] In one embodiment, a first swing rod is fixedly sleeved on the first rotating shaft, a second swing rod is fixedly sleeved on the second rotating shaft, one end of the first spring facing the first rotating shaft is fixedly connected to the first swing rod, and one end of the second spring facing the second rotating shaft is fixedly connected to the second swing rod.

[0011] In one embodiment, the operating mechanism further comprises a mounting plate, the first rotating shaft and the second rotating shaft are both arranged on the mounting plate, the connecting line of the first rotating shaft and the second rotating shaft divides the plate surface of the mounting plate into a first area and a second area, a first bracket and a second bracket are arranged on the plate surface of the mounting plate, the first bracket is arranged in the first area and close to the second rotating shaft, and the second bracket is arranged in the second area and close to the first rotating shaft. One end of the first spring is fixedly connected to the first swing arm, and the other end of the first spring is fixedly connected to the first bracket, one end of the second spring is fixedly connected to the second swing arm, and the other end of the second spring is fixedly connected to the second bracket.

[0012] In one embodiment, the distance between the first bracket and the first rotating shaft is equal to the distance between the second bracket and the second rotating shaft, the distance between the first bracket and the second rotating shaft is equal to the distance between the second bracket and the first rotating shaft, and the lengths of the first spring and the second spring are equal.

[0013] In one embodiment, the trigger mechanism is an electromagnetic mechanism, which includes a coil and an iron core. The iron core is movably inserted in the central through hole of the coil. The iron core serves as the telescopic member. The iron core telescopes under the action of the magnetic field of the coil, thereby triggering the energy storage mechanism to release energy.

[0014] In one embodiment, the electromagnetic mechanism further includes a third spring. A flange is protruding from the circumference of the iron core. The third spring is sleeved on the iron core and located between the coil and the flange. The third spring is used to drive the iron core to press against the rotating shaft.

[0015] In one embodiment, the operating mechanism of the isolating switch further comprises an operating handle, and the operating handle is drivingly connected to one of the first rotating shaft and the second rotating shaft to drive the actuator and the linkage mechanism to rotate synchronously.

[0016] The operating mechanism of the isolating switch is a dual-axis driving mechanism. When the contact assemblies arranged on the isolating switch are consistent, the contact assemblies are arranged in two rows, which can reduce the load on a single rotating shaft, thereby avoiding too many layers of contact assemblies loaded on each rotating shaft, thereby avoiding the phenomenon of asynchronous conduction and disconnection of the upper contact assembly and the lower contact assembly. At the same time, the lever action of the linkage mechanism is used to achieve synchronous closing and opening of the two rotating shafts, which is more labor-saving and can meet the connection and disconnection requirements of large capacities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A structural schematic diagram of an operating mechanism according to an embodiment of the present invention;

[0019] Figure 2 A partial structural diagram of an operating mechanism according to an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the structure of an electromagnetic mechanism of an operating mechanism according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall structure of the operating mechanism provided by the utility model applied to an isolating switch;

[0022] Figure 5 The utility model is a schematic diagram of the internal structure of an operating mechanism applied to an isolating switch.

[0023] Description of Figure Numbers:

[0024] 100, operating mechanism; 11, mounting plate; 12, first rotating shaft; 13, second rotating shaft; 14, first bracket; 15, second bracket; 16, first spring; 17, second spring; 18, first swing rod; 19, second swing rod; 21, first connecting rod; 22, second connecting rod; 23, third connecting rod; 24, fourth connecting rod; 30, electromagnetic mechanism; 31, coil; 32, iron core; 321, flange; 33, third spring; 50, operating handle;

[0025] 600, isolating switch; 60, housing; 70, switch mechanism; 71, first switch unit; 72, second switch unit.

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] At present, in order to achieve switching of multiple circuits, the isolating switch usually has several switch units stacked in the axial direction of a single rotating shaft, which not only leads to a high longitudinal height of the isolating switch, but also leads to a large load on the single rotating shaft, which in turn requires a large force to bend the rotating shaft.

[0031] To this end, the present invention provides an operating mechanism 100 of an isolating switch 600 .

[0032] See also Figures 1 to 3 The operating mechanism 100 proposed in the utility model includes an actuator, a linkage mechanism and an operating handle 50. The actuator includes a first rotating shaft 12 and a second rotating shaft 13 arranged side by side. The linkage mechanism is arranged between the first rotating shaft 12 and the second rotating shaft 13, and is used to link the first rotating shaft 12 and the second rotating shaft 13 so that the first rotating shaft 12 and the second rotating shaft 13 rotate in the same direction and stop synchronously. The operating handle 50 is drivingly connected to one of the first rotating shaft 12 and the second rotating shaft 13 to drive the actuator and the linkage mechanism to rotate synchronously.

[0033] Reference Figures 4 to 5The operating mechanism 100 is used to be installed on the disconnector 600. In addition to the above structure, the disconnector 600 also includes a switch mechanism 70. A partition is provided in the housing 60 of the disconnector 600 to separate the chamber of the housing 60 into a first chamber and a second chamber. The operating mechanism 100 is provided in the first chamber, and the switch mechanism 70 is provided in the second chamber. The switch mechanism 70 includes a first switch unit 71 and a second switch unit 72. The first switch unit 71 is connected to the first rotating shaft 12 by transmission, and the second switch unit 72 is connected to the second rotating shaft 13 by transmission. Each switch unit includes at least one group of contact assemblies, and the contact assembly includes a moving contact, a first static contact and a second static contact. The first static contact and the second static contact are arranged diagonally, and the moving contact is arranged between the first static contact and the second static contact. The moving contact is connected to the corresponding rotating shaft by transmission, and the moving contact rotates with the rotation of the corresponding rotating shaft, so as to realize the contact conduction or separation between the moving contact and the static contact, thereby realizing the opening and closing of the switch.

[0034] In the operating mechanism 100, a linkage mechanism is provided between the first rotating shaft 12 and the second rotating shaft 13, and the first rotating shaft 12 and the second rotating shaft 13 rotate in the same direction and stop synchronously under the action of the linkage mechanism. That is, when one of the rotating shafts rotates under the drive of the operating handle 50, the rotating shaft will drive the linkage mechanism to rotate, and the linkage mechanism will then drive the other rotating shaft to rotate. When one of the rotating shafts is locked, the other rotating shaft will also be locked. Among them, the operating handle 50 can be directly fixedly connected to one of the first rotating shaft 12 and the second rotating shaft 13, and can also be connected to one of the first rotating shaft 12 and the second rotating shaft 13 through a gear structure, so that turning the operating handle 50 can drive the rotating shaft to rotate, thereby realizing manual opening and manual closing.

[0035] For example, in the embodiment shown in the figure, the linkage mechanism includes a first link 21, a second link 22, a third link 23 and a fourth link 24. A first connecting hole is opened in the middle of the first link 21, a second connecting hole is opened in the middle of the second link 22, the first rotating shaft 12 is passed through the first connecting hole to be fixedly connected to the first link 21, the second rotating shaft 13 is passed through the second connecting hole to be fixedly connected to the second link 22, one end of the third link 23 is rotatably connected to the first link 21, and the third The other end of the connecting rod 23 is rotatably connected to the second connecting rod 22, one end of the fourth connecting rod 24 is rotatably connected to the end of the first connecting rod 21 away from the third connecting rod 23, the other end of the fourth connecting rod 24 is rotatably connected to the end of the second connecting rod 22 away from the third connecting rod 23, the first connecting rod 21 is equal to the second connecting rod 22 in length, the third connecting rod 23 is equal to the fourth connecting rod 24 in length, and the first connecting rod 21, the second connecting rod 22, the third connecting rod 23 and the fourth connecting rod 24 form a parallelogram connecting rod mechanism. Therefore, the rotation of the first rotating shaft 12 will drive the four connecting rods to rotate, and then drive the second rotating shaft 13 to rotate, thereby realizing the linkage of the first rotating shaft 12 and the second rotating shaft 13.

[0036] Alternatively, in another embodiment, the linkage mechanism includes a first link 21, a second link 22, and a third link 23, one end of the first link 21 is fixedly connected to the first rotating shaft 12, one end of the second link 22 is fixedly connected to the second rotating shaft 13, the first link 21 and the second link 22 are equal in length, one end of the third link 23 is rotatably connected to the first link 21, and the other end of the third link 23 is rotatably connected to the first link 21. In this case, the first link 21, the second link 22, and the third link 23 constitute a three-link mechanism, and the rotation of the first rotating shaft 12 will also drive the three links to rotate, thereby driving the second rotating shaft 13 to rotate, and the linkage of the first rotating shaft 12 and the second rotating shaft 13 can also be achieved.

[0037] Among them, the first rotating shaft 12 and the second rotating shaft 13 have a state of rotating to a first angle and a state of rotating to a second angle. When the first rotating shaft 12 and the second rotating shaft 13 are rotated to the first angle under the action of external force, the moving contact rotates to the first position to connect the first static contact and the second static contact, and the isolating switch 600 is closed. When the first rotating shaft 12 and the second rotating shaft 13 are rotated to the second angle under the action of external force, the moving contact rotates to the second position to disconnect the first static contact and the second static contact, and the isolating switch 600 is opened.

[0038] In summary, the operating mechanism 100 of the isolating switch 600 is a dual-axis driving mechanism. When in use, the first rotating shaft 12 is connected to the first switch unit 71 by driving, and the second rotating shaft 13 is connected to the second switch unit 72 by driving, and the two rotating shafts are linked together by setting a linkage mechanism, so that the first rotating shaft 12 and the second rotating shaft 13 can rotate in the same direction and stop synchronously. In the case where the contact assemblies are set in the same way, the contact assemblies are divided into two rows to avoid too many layers of contact assemblies loaded on each rotating shaft, thereby avoiding the phenomenon of asynchronous conduction and disconnection of the upper contact assembly and the lower contact assembly. At the same time, the lever action of the linkage mechanism is used to achieve synchronous closing and opening of the two rotating shafts, which is more labor-saving and can meet the connection and disconnection requirements of large capacity.

[0039] Reference Figure 1 and Figure 2 The operating mechanism 100 further includes an energy storage mechanism and a trigger mechanism. The energy storage mechanism includes a first spring 16 that is transmission-connected to the first rotating shaft 12. The trigger mechanism includes a telescopic member that abuts against the first rotating shaft 12 or the second rotating shaft 13. When the first spring 16 is in a stretched state, the telescopic member abuts against the first rotating shaft 12 or the second rotating shaft 13 to keep the actuator and the linkage mechanism stationary. When the telescopic member is retracted, the actuator and the linkage mechanism rotate synchronously under the action of the first spring 16.

[0040] It should be explained in detail that, when in the closed state, the telescopic part of the trigger mechanism presses against the first rotating shaft 12 or the second rotating shaft 13, and the first rotating shaft 12 and the second rotating shaft 13 remain different. At this time, the first spring 16 is in a stretched state. When the telescopic part retracts, the pushing effect of the telescopic part on the rotating shaft disappears, and the first spring 16 will drive the rotating shaft to rotate to the closed position.

[0041] Furthermore, the energy storage mechanism may also include a second spring 17 transmission-connected to the second rotating shaft 13, the torque direction of the second spring 17 on the second rotating shaft 13 is consistent with the torque direction of the first spring 16 on the first rotating shaft 12, and the first spring 16 and the second spring 17 jointly drive the first rotating shaft 12 and the second rotating shaft 13 to rotate in the same direction.

[0042] At this time, when in the closed state, the telescopic member of the trigger mechanism and the first rotating shaft 12 or the second rotating shaft 13 abut against each other, the first rotating shaft 12 and the second rotating shaft 13 remain stationary, and the first spring 16 and the second spring 17 are in a stretched state. After the telescopic member is retracted, the first rotating shaft 12 and the second rotating shaft 13 rotate synchronously under the action of the first spring 16 and the second spring 17. In this embodiment, two springs are provided to provide a restoring force for the rotating shaft. On the one hand, the restoring force applied to the rotating shaft can be greater, thereby making the opening speed faster and achieving the purpose of fast switching of the circuit. On the other hand, the restoring force of the rotating shaft is shared by the two springs, thereby shortening the tensile deformation of each spring and extending the fatigue time of the spring. Moreover, when one of the springs is fatigued and damaged, the other spring can also ensure the opening action, thereby extending the service life.

[0043] Reference Figure 1 or Figure 2 A first swing rod 18 is fixedly sleeved on the first rotating shaft 12, a second swing rod 19 is fixedly sleeved on the second rotating shaft 13, one end of the first spring 16 facing the first rotating shaft 12 is fixedly connected to the first swing rod 18, and one end of the second spring 17 facing the second rotating shaft 13 is fixedly connected to the second swing rod 19.

[0044] In this embodiment, the first swing rod 18 is sleeved on the first rotating shaft 12, the second swing rod 19 is sleeved on the second rotating shaft 13, and then the first spring 16 is connected to the first swing rod 18, and the second spring 17 is connected to the second swing rod 19, thereby realizing the connection between the first spring 16 and the first rotating shaft 12 and the connection between the second spring 17 and the second rotating shaft 13. As a result, the first spring 16 drives the first swing rod 18 to rotate in the direction of the gate opening, thereby driving the first rotating shaft 12 to rotate in the direction of the gate opening, and the second spring 17 drives the second swing rod 19 to rotate in the direction of the gate opening, thereby driving the second rotating shaft 13 to rotate in the direction of the gate opening. The setting of the swing rod can increase the force arm between the elastic force application point of the spring and the center point of the rotating shaft, thereby increasing the torque applied by the spring to the rotating shaft, thereby driving the rotating shaft to rotate rapidly.

[0045] In addition, the operating mechanism 100 further includes a mounting plate 11, a first rotating shaft 12 and a second rotating shaft 13 are both arranged on the mounting plate 11, a connecting line between the first rotating shaft 12 and the second rotating shaft 13 divides the plate surface of the mounting plate 11 into a first area and a second area, a first bracket 14 and a second bracket 15 are arranged on the plate surface of the mounting plate 11, the first bracket 14 is arranged in the first area and close to the second rotating shaft 13, and the second bracket 15 is arranged in the second area and close to the first rotating shaft 12. One end of the first spring 16 is fixedly connected to the first swing rod 18, and the other end of the first spring 16 is fixedly connected to the first bracket 14, one end of the second spring 17 is fixedly connected to the second swing rod 19, and the other end of the second spring 17 is fixedly connected to the second bracket 15. Therefore, the direction of the torque applied by the first spring 16 to the first rotating shaft 12 is the same as the direction of the torque applied by the second spring 17 to the second rotating shaft 13, both are clockwise or counterclockwise, so as to ensure that the first rotating shaft 12 and the second rotating shaft 13 rotate in the same direction.

[0046] Furthermore, the distance between the first bracket 14 and the first rotating shaft 12 is equal to the distance between the second bracket 15 and the second rotating shaft 13, the distance between the first bracket 14 and the second rotating shaft 13 is equal to the distance between the second bracket 15 and the first rotating shaft 12, and the lengths of the first spring 16 and the second spring 17 are equal. Therefore, the force applied by the first spring 16 to the first rotating shaft 12 and the force applied by the second spring 17 to the second rotating shaft 13 are equal in magnitude and opposite in direction, thereby ensuring that the first rotating shaft 12 and the second rotating shaft 13 are subjected to balanced forces.

[0047] In the embodiment of the present utility model, the trigger mechanism can be an electromagnetic mechanism 30, referring to Figure 3 The electromagnetic mechanism 30 includes a coil 31 and an iron core 32. The iron core 32 is movably inserted into the central through hole of the coil 31. At this time, the iron core 32 acts as a telescopic member to abut against the first rotating shaft 12 or the second rotating shaft 13. The iron core 32 expands and contracts under the action of the magnetic field of the coil 31, thereby triggering the energy storage mechanism to release energy.

[0048] When a short circuit occurs in the line or an electrical signal is actively input, current flows through the coil 31, and the magnetic field generated by the power-on of the coil 31 can drive the iron core 32 to expand and contract in the central through hole of the coil 31. In the closed state, the iron core 32 and the first rotating shaft 12 or the second rotating shaft 13 abut against each other. After power is turned on, the iron core 32 retracts under the action of the magnetic field of the coil 31, and the first rotating shaft 12 and the second rotating shaft 13 automatically rotate to the open state under the action of the first spring 16 and the second spring 17, thereby realizing automatic opening.

[0049] Among them, abutment holes are provided on one side of the first rotating shaft 12 or the second rotating shaft 13 facing the coil 31, and the iron core 32 is inserted into the abutment holes to abut the first rotating shaft 12 or the second rotating shaft 13, thereby realizing the positioning of the iron core 32 and the first rotating shaft 12 or the second rotating shaft 13, making it convenient for the iron core 32 to apply a thrust force to the first rotating shaft 12 or the second rotating shaft 13.

[0050] The electromagnetic mechanism 30 further includes a third spring 33. A flange 321 is convexly provided on the circumference of the iron core 32. The third spring 33 is sleeved on the iron core 32 and located between the coil 31 and the flange 321. The third spring 33 is used to drive the iron core 32 to press against the rotating shaft.

[0051] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An operating mechanism of an isolating switch, characterized in that: include: An actuator, the actuator comprising a first rotating shaft and a second rotating shaft arranged side by side; The linkage mechanism is arranged between the first rotating shaft and the second rotating shaft, and is used to link the first rotating shaft and the second rotating shaft so that the first rotating shaft and the second rotating shaft rotate in the same direction and stop synchronously.

2. The operating mechanism of the isolating switch according to claim 1, characterized in that: The linkage mechanism includes a first link, a second link, a third link and a fourth link. A first connecting hole is opened in the middle of the first link, a second connecting hole is opened in the middle of the second link, the first rotating shaft is passed through the first connecting hole to be fixedly connected to the first link, the second rotating shaft is passed through the second connecting hole to be fixedly connected to the second link, one end of the third link is rotatably connected to the first link, the other end of the third link is rotatably connected to the second link, one end of the fourth link is rotatably connected to an end of the first link facing away from the third link, the other end of the fourth link is rotatably connected to an end of the second link facing away from the third link, the first link, the second link, the third link and the fourth link constitute a parallelogram linkage mechanism.

3. The operating mechanism of the isolating switch according to claim 1, characterized in that: The operating mechanism also includes: an energy storage mechanism, the energy storage mechanism comprising a first spring drivingly connected to the first rotating shaft; and A trigger mechanism, the trigger mechanism comprising a telescopic member, the telescopic member abutting against the first rotating shaft or the second rotating shaft; When the first spring is in a stretched state, the telescopic member and the first rotating shaft or the second rotating shaft abut against each other to keep the actuator and the linkage mechanism stationary. When the telescopic member is retracted, the actuator and the linkage mechanism rotate synchronously under the action of the first spring.

4. The operating mechanism of the isolating switch according to claim 3, characterized in that: The energy storage mechanism also includes a second spring drivingly connected to the second rotating shaft, the torque direction of the second spring on the second rotating shaft is consistent with the torque direction of the first spring on the first rotating shaft, and the first spring and the second spring jointly drive the first rotating shaft and the second rotating shaft to rotate in the same direction.

5. The operating mechanism of the isolating switch according to claim 4, characterized in that: A first swing rod is fixedly sleeved on the first rotating shaft, a second swing rod is fixedly sleeved on the second rotating shaft, one end of the first spring facing the first rotating shaft is fixedly connected to the first swing rod, and one end of the second spring facing the second rotating shaft is fixedly connected to the second swing rod.

6. The operating mechanism of the isolating switch according to claim 5, characterized in that: The operating mechanism further includes a mounting plate, the first rotating shaft and the second rotating shaft are both arranged on the mounting plate, a connecting line between the first rotating shaft and the second rotating shaft divides a plate surface of the mounting plate into a first area and a second area, a first bracket and a second bracket are arranged on the plate surface of the mounting plate, the first bracket is arranged in the first area and close to the second rotating shaft, and the second bracket is arranged in the second area and close to the first rotating shaft; One end of the first spring is fixedly connected to the first swing rod, and the other end of the first spring is fixedly connected to the first bracket. One end of the second spring is fixedly connected to the second swing rod, and the other end of the second spring is fixedly connected to the second bracket.

7. The operating mechanism of the disconnector according to claim 6, characterized in that: The distance between the first bracket and the first rotating shaft is equal to the distance between the second bracket and the second rotating shaft, the distance between the first bracket and the second rotating shaft is equal to the distance between the second bracket and the first rotating shaft, and the length of the first spring is equal to the length of the second spring.

8. The operating mechanism of the isolating switch according to claim 3, characterized in that: The trigger mechanism is an electromagnetic mechanism, which includes a coil and an iron core. The iron core is movably inserted in the central through hole of the coil. The iron core serves as the telescopic member. The iron core telescopes under the action of the magnetic field of the coil, thereby triggering the energy storage mechanism to release energy.

9. The operating mechanism of the isolating switch according to claim 8, characterized in that: The electromagnetic mechanism further comprises a third spring. A flange is convexly provided on the circumference of the iron core. The third spring is sleeved on the iron core and located between the coil and the flange. The third spring is used to drive the iron core to press against the rotating shaft.

10. The operating mechanism of the isolating switch according to claim 1, characterized in that: It also includes an operating handle, which is drivingly connected to one of the first rotating shaft and the second rotating shaft to drive the actuator and the linkage mechanism to rotate synchronously.