A switching device

Abstract

The application provides a kind of switch electric appliance, including transmission member, the first end surface of transmission member is equipped with the first transmission structure of outer convex, the second end surface of transmission member is equipped with the second transmission structure of outer convex with the first transmission structure symmetry, the first transmission structure, the second transmission structure can be used for transmission connection with contact shaft member and driving rotating member, and the transmission connection between adjacent contact shaft members, when connecting, no need to change spare parts or add spare parts, manufacturing cost is low, splicing is more convenient.

Description

Technical Field

[0001] This invention relates to the field of switching device technology, and more specifically to a switching device. Background Technology

[0002] Disconnecting switches are used to open or close circuits, and feature rapid opening or closing to minimize the impact of electric arcs. These switching devices are typically constructed so that an operator manually or with other tools operates an lever to engage or disengage the stationary contact via a series of linked components. When disconnected, a disconnecting switch isolates non-energized parts from energized parts, creating a clear break point to isolate faulty equipment or equipment undergoing maintenance. During electrical equipment maintenance without power, isolating the equipment from the power supply prevents safety accidents. Disconnecting switches are widely used in power distribution and automation systems in construction, power, petrochemical, and other industries. Common rotary disconnecting switches include an operating mechanism and a contact system, with the contact system consisting of moving and stationary contacts. The operating mechanism of the disconnecting switch moves the moving contact via a rotating element, thereby engaging or disengaging it from the stationary contact. The operating mechanism and contact system are typically connected by a transmission component. Currently, the transmission components of disconnecting switches are complex, requiring various types of transmission components to achieve the transmission connection between the operating mechanism and the contact system, as well as the transmission connection between the contact systems themselves. In addition, unreasonable structural design of the transmission system of the disconnecting switch can also lead to certain safety hazards. Summary of the Invention

[0003] Therefore, in response to at least one of the above-mentioned problems, the present invention provides a switching device.

[0004] This invention is implemented using the following scheme:

[0005] This invention proposes a switching device, which is a rotary switch structure, including an operating mechanism and a contact mechanism. The contact mechanism includes a contact shaft connecting to a contact head. The operating mechanism includes a driving rotating member for driving the contact shaft. The invention is characterized by further including a transmission member, which includes a first end face and a second end face facing away from each other. The first end face of the transmission member has a convex first transmission structure, and the second end face of the transmission member has a convex second transmission structure symmetrical to the first transmission structure. The driving rotating member has a concave third transmission structure corresponding to the first or second transmission structure of the transmission member. The contact shaft is provided with… A fourth transmission structure corresponding to the recessed first or second transmission structure of the transmission member; wherein, the transmission connection between the contact shaft and the active rotating member through the transmission member can be achieved by any one of the following: A. through the transmission connection between the first transmission structure of the transmission member and the third transmission structure of the active rotating member, and through the transmission connection between the second transmission structure of the transmission member and the fourth transmission structure of the contact shaft; B. through the transmission connection between the second transmission structure of the transmission member and the third transmission structure of the active rotating member, and through the transmission connection between the first transmission structure of the transmission member and the fourth transmission structure of the contact shaft.

[0006] This invention also proposes a switching device, which is a rotary switch structure and a multi-stage switching device, including an operating mechanism and multiple contact mechanisms. Each contact mechanism includes a contact shaft connecting to a contact head. The operating mechanism includes an active rotating component for driving the contact shaft. The invention is characterized by further including multiple transmission components. Each transmission component includes a first end face and a second end face that are opposite to each other. The first end face of the transmission component has a convex first transmission structure, and the second end face of the transmission component has a convex second transmission structure symmetrical to the first transmission structure. The active rotating component is provided with a concave third transmission structure corresponding to the first or second transmission structure of the transmission component. The contact shaft is provided with a corresponding first or second transmission structure of the transmission component. The fourth transmission structure is recessed; wherein the transmission connection between the contact shaft and the active rotating member can be achieved by any two of the following methods: A. by the transmission connection between the first transmission structure of the transmission member and the third transmission structure of the active rotating member, and by the transmission connection between the second transmission structure of the transmission member and the fourth transmission structure of the contact shaft; B. by the transmission connection between the second transmission structure of the transmission member and the third transmission structure of the active rotating member, and by the transmission connection between the first transmission structure of the transmission member and the fourth transmission structure of the contact shaft; wherein the inter-stage connection of multiple contact mechanisms is achieved by: C. by the transmission connection between the first transmission structure and the second transmission structure of the transmission member and the fourth transmission structure of two adjacent contact shafts, respectively.

[0007] In one embodiment, the transmission member can be intermittently transmitted to the active rotating member via the first transmission structure or the second transmission structure.

[0008] In one embodiment, the first transmission structure is a first protrusion on the first end face of the transmission member, and the second transmission structure is a second protrusion on the second end face of the transmission member; the end face of the active rotating member is provided with an arc-shaped shaft hole, and there is a transmission stroke gap between the arc-shaped shaft hole and the first protrusion or the second protrusion, thereby realizing the intermittent transmission connection between the active rotating member and the transmission member.

[0009] In one embodiment, the contact mechanism further includes a contact assembly, the contact shaft is used to actuate the contact assembly to achieve opening and closing of the circuit breaker, the active rotating component includes a linkage component, the operating mechanism further includes a base, the linkage component is rotatably disposed in the base, the linkage component is connected to the contact shaft via the transmission component, the rotation of the linkage component drives the contact shaft to rotate, and the rotation of the contact shaft can actuate the contact mechanism of the switching device to achieve opening and closing of the circuit breaker.

[0010] In one embodiment, the active rotating component further includes a first gear, and the operating mechanism further includes a main shaft and a second gear. The first gear and the second gear mesh with each other for transmission. The second gear is coaxially connected to one end of the main shaft. The first gear and the linkage component are interconnected and rotate synchronously.

[0011] In one embodiment, the first transmission structure is a first protrusion on the first end face of the transmission member, the second transmission structure is a second protrusion on the second end face of the transmission member, the end face of the first gear is provided with an arc-shaped shaft hole, and there is a transmission stroke clearance between the arc-shaped shaft hole of the first gear and the first protrusion or the second protrusion, thereby realizing the intermittent transmission connection between the linkage component and the transmission member; and / or

[0012] The axis of the first gear and the axis of the second gear are perpendicular to each other.

[0013] In one embodiment, the operating mechanism further includes a main shaft, which is driven to connect the linkage component and can drive the linkage component to rotate. The main shaft includes a first shaft segment and a second shaft segment, which are intermittently connected by transmission.

[0014] In one embodiment, a fifth transmission structure is provided at one end of the first shaft segment, and a sixth transmission structure is provided at one end of the second shaft segment. The fifth transmission structure and the sixth transmission structure are a set of shafts with keyed teeth and shaft holes with keyways that can cooperate with each other for transmission. The central angle corresponding to the keyway is greater than the central angle corresponding to the keyed teeth, thereby realizing an intermittent transmission connection between the first shaft segment and the second shaft segment.

[0015] In one embodiment, the switching device includes an operating mechanism and two contact mechanisms, wherein the operating mechanism is connected to the contact mechanisms via the transmission member;

[0016] The operating mechanism is located between the two contact mechanisms; or

[0017] The operating mechanism is located on one side of the two parallel contact mechanisms, which are connected by the transmission component.

[0018] The technical solution provided by this invention has the following technical effects:

[0019] 1. This invention provides a switching device, including a transmission component. The first end face of the transmission component is provided with a first protruding transmission structure, and the second end face of the transmission component is provided with a second protruding transmission structure symmetrical to the first transmission structure. The first transmission structure and the second transmission structure can be used for transmission connection with contact shaft components and active rotating components, as well as transmission connection between adjacent contact shaft components. No parts need to be replaced or added during connection, resulting in low manufacturing cost and easier assembly.

[0020] 2. In the switching device operating mechanism of the present invention, the linkage component and the transmission component are intermittently connected by transmission, which can improve the operating feel, accelerate the contact separation speed, and increase the contact life. The main shaft includes a first shaft segment and a second shaft segment, which are intermittently connected by transmission, which can further improve the operating feel, accelerate the contact separation speed, and increase the contact life.

[0021] 3. The first and second transmission structures are designed to be convex, while the third and fourth transmission structures that cooperate with them are designed to be concave. This ensures that when the third transmission structure of the active rotating component is exposed without being externally connected, its rotation will not cause injury to the operator, thus improving safety. Attached Figure Description

[0022] Figure 1 This is a perspective view of the disconnector switch operating mechanism of this invention with part of the base hidden and in the open state;

[0023] Figure 2 This is a perspective view of the disconnector switch operating mechanism in this embodiment, with part of the base and the second gear hidden, and in the state of maximum energy storage;

[0024] Figure 3 This is a perspective view of the disconnector switch operating mechanism in this embodiment, with part of the base and the second gear hidden, and in the closed state;

[0025] Figure 4 This is a perspective view of the disconnector switch operating mechanism of this embodiment, with the base hidden.

[0026] Figure 5 This is an exploded view of the disconnector switch operating mechanism of this embodiment, with the base hidden.

[0027] Figure 6 This is a perspective view of the assembly of the second gear and the linkage component in this embodiment;

[0028] Figure 7 This is a perspective view of the split spindle in this embodiment;

[0029] Figure 8 This is a perspective view of the first axis segment of this embodiment;

[0030] Figure 9 This is a perspective view of the assembly of the transmission component and the linkage component in this embodiment;

[0031] Figure 10 This is a perspective view of the assembly of the transmission component and the contact shaft component in this embodiment;

[0032] Figure 11 This is a perspective view of the transmission component assembled between the two contact shaft components in this embodiment;

[0033] Figure 12 This is a perspective view of the linkage component connecting the two contact shafts in this embodiment;

[0034] Figure 13 This is a perspective view of the isolating switch operating mechanism located on one side of the two parallel contact mechanisms in this embodiment;

[0035] Figure 14 This is a perspective view of the second gear and the linkage component respectively driving and connecting the contact head shaft in this embodiment;

[0036] Figure 15 This is a perspective view of the isolating switch operating mechanism located between the two contact mechanisms in this embodiment. Detailed Implementation

[0037] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, primarily used to illustrate the embodiments and to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0038] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] Reference Figure 1-15 This embodiment provides a switching device, which is a rotary switch structure. The switching device can be a disconnecting switch or a circuit breaker; in this embodiment, the switching device is a disconnecting switch. Specifically, refer to... Figure 13 The switching device includes a disconnecting switch operating mechanism 1, a contact mechanism 2, and a transmission component 90. In this embodiment, two contact mechanisms 2 are provided, but this is not a limitation; the number of contact mechanisms 2 can be more or less. The contact mechanism 2 includes a contact shaft 100 and a contact assembly, wherein the contact shaft 100 is used to actuate the contact assembly to achieve opening and closing of the circuit breaker.

[0041] The operating mechanism 1 includes an active rotating component for driving the contact shaft 100. In this embodiment, the active rotating component for driving the contact shaft 100 is a linkage component 60 and a first gear 20.

[0042] Specifically, such as Figure 1-8 As shown, the disconnector operating mechanism 1 includes a base 10, a main shaft 70, a first gear 20, a second gear 80, an energy storage element 30, a pin 40, a connecting rod 50, and a linkage component 60.

[0043] The second gear 80 is coaxially connected to one end of the main shaft 70, which is used to transmit rotational motion, such as the rotational motion of a handle. This rotational motion, after transmission, actuates the contact system to achieve opening and closing of the circuit breaker. Specifically, the axis of the main shaft 70 is perpendicular to the axis of the first gear 20. The second gear 80 includes a first bevel gear structure 81, and the first gear 20 includes a second bevel gear structure 21. The bevel gear structures of the second gear 80 and the first gear 20 cooperate with each other to achieve vertical power transmission.

[0044] Reference Figure 6 The first gear 20 and the linkage component 60 are rotatably mounted within the base 10. The first gear 20 and the linkage component 60 rotate synchronously through an interlocking structure. The linkage component 60 is provided with a first cylindrical structure 61, and the first cylindrical structure 61 is provided with a first connecting structure 611. The first gear 20 is provided with a second cylindrical structure 22, and the second cylindrical structure 22 is provided with a second connecting structure 221. The first connecting structure 611 and the second connecting structure 221 are a set of cylinders and holes that can be interlocked, thereby realizing the interlocking of the first gear 20 and the linkage component 60.

[0045] In this embodiment, the first cylindrical structure 61 is provided with a docking cylinder 611, and the second cylindrical structure 22 is provided with a docking hole 221. The docking cylinder 611 can be inserted and mated with the docking hole 221.

[0046] The linkage component 60 drives the actuation mechanism of the contact system. The rotation of the main shaft 70 realizes the rotation of the linkage component 60, and the rotation of the linkage component 60 is used to actuate the contact system to realize the opening and closing of the circuit breaker.

[0047] This embodiment illustrates power transmission vertically by aligning the axis of the main shaft 70 perpendicular to the axis of the first gear 20. In other embodiments, depending on the specific rotational transmission direction, the axis of the main shaft 70 may be parallel to the axis of the first gear 20, or at a certain angle, which also achieves power transmission; alternatively, the main shaft 70 may be directly linked to the linkage component 60, which is also a feasible technical solution.

[0048] The energy storage element 30 can be a compression spring, a tension spring, or other energy storage elements, such as a gas spring. This embodiment uses a compression spring as an example. The rotation of the linkage member 60 can actuate the energy storage element 30 to store energy. In this embodiment, the rotation of the linkage member 60 can compress the compression spring to store energy. The energy storage element 30 is sleeved on the connecting rod 50, which is used to guide and limit the energy storage element 30 during compression storage or release. One end of the connecting rod 50 is hinged and positioned relative to the base 10. For example, one end of the connecting rod 50 is hinged to the base 10 via a pin 40, thereby one end of the connecting rod 50 is hinged and positioned relative to the base 10. The other end of the connecting rod 50 is provided with a groove 51, and the mating cylinder 611 of the linkage member 60 passes through the groove 51, so that the other end of the connecting rod 50 is rotatably and slidably connected to the linkage member 60. The energy storage element 30 has its two ends abutting against the pin 40 and the first cylindrical structure 61 and / or the second cylindrical structure 22, respectively. Alternatively, the connecting rod 50 can guide and limit the energy storage element 30 in other ways, such as by providing a guide groove on the connecting rod 50, through which the energy storage element 30 is guided and limited. In this embodiment, the energy storage element 30 is sleeved on the connecting rod 50, thereby allowing the connecting rod 50 to guide and limit the energy storage element 30 during energy storage or release, resulting in a simpler structure.

[0049] Of course, in some other embodiments, when the energy storage element 30 is a gas spring, the gas spring can be fitted onto the connecting rod 50 by means of an accessory, for example, the gas spring can be fitted onto the connecting rod 50 by means of an additional sleeve.

[0050] When the energy storage element 30 is a tension spring, the tension spring is configured to have an orientation opposite to that of the compression spring in this embodiment, so that the rotation of the linkage member 60 can pull the tension spring to store energy.

[0051] In other embodiments, the groove 51 of the connecting rod 50 can also be provided at the opposite end to this solution. That is, one end of the connecting rod 50 can be hinged to the linkage member 60, and the other end of the connecting rod 50 can be provided with the groove 51 and slidably connected to the pin 40. This is also a feasible technical solution. However, in this solution, the end of the connecting rod 50 with the groove 51 may protrude outward from the base 10 due to the pushing of the linkage member 60, resulting in the base 10 needing to have a larger volume, which is not conducive to the miniaturization of the product. That is, compared with the rotatable and slidable connection between the connecting rod 50 and the base 10, in this embodiment, the connecting rod 50 and the linkage member 60 are rotatable and slidable. Thus, the pushing of the linkage member 60 causes the end of the connecting rod 50 with the groove 51 to protrude inward from the linkage member 60, so the base 10 has a smaller volume, the product is more compact, and this solution has a simple structure, is easy to manufacture, and can reduce costs.

[0052] In this embodiment, two sliding sleeves 41 are fitted onto the pin 40, so that one end of the energy storage element 30 does not directly abut against the pin 40, but rather one end of the energy storage element 30 abuts against the sliding sleeve 41. This reduces wear on the pin 40 and makes the operation of the energy storage element 30 more flexible. In other embodiments, the first cylindrical structure 61 and the second cylindrical structure 22 can be replaced with columnar structures with non-cylindrical outer surfaces, such as columnar structures with polygonal outer surfaces. However, in this embodiment, using a cylindrical structure further enhances the flexibility of the operation of the energy storage element 30.

[0053] The depth of the mating circular hole 221 is less than the length of the mating cylinder 611, thus providing an assembly gap between the first cylindrical structure 61 and the second cylindrical structure 22. The width of this assembly gap is slightly greater than the thickness of the connecting rod 50, thereby enabling the mating cylinder 611 of the linkage component 60 to pass through the groove 51. The connecting rod 50 is positioned in the gap between the first cylindrical structure 61 and the second cylindrical structure 22 in the thickness direction, which is beneficial to the stability of the connecting rod 50 and can guide the movement of the connecting rod 50. Of course, in other embodiments, there is no gap between the first cylindrical structure 61 and the second cylindrical structure 22, that is, the first cylindrical structure 61 and the second cylindrical structure 22 are tightly fitted, and the first cylindrical structure 61 and / or the second cylindrical structure 22 passes through the groove 51, which is also a feasible technical solution.

[0054] like Figure 1 As shown, the linkage component 60 starts rotating from the first position shown in the figure along direction B, corresponding to the rotation direction of the main shaft 70 as direction A. At this time, the first cylindrical structure 61 slides in the groove 51, and the distance between the first cylindrical structure 61 and the pin 40 is shortened, thereby compressing and storing energy in the energy storage element 30; as Figure 2 As shown, the rotation of the linkage component 60 causes the energy storage element 30 to reach its maximum compression, thus maximizing the energy stored in the energy storage element 30. At this point, the linkage component 60 reaches its dead center position. After reaching this position, the linkage component 60 continues to rotate along direction B, as... Figure 3 As shown, after the linkage component 60 rotates past its dead center, the energy storage element 30 releases energy, driving the linkage component 60 to rotate rapidly, and the linkage component 60 rotates to reach the point shown in the figure. Figure 3 The second position shown.

[0055] As mentioned above, since the linkage component 60 is connected to the actuation mechanism of the contact head system, when the linkage component 60 is driven by, as Figure 1 The first position shown is the steering. Figure 3 In the second position shown, the contact state of the contact system switches from the first state to the second state; for example, the contact system switches from the open state to the closed state. At least a portion of the length of the groove 51 on the connecting rod 50 covers the energy storage compression stroke of the compression spring.

[0056] The energy storage element 30 and the connecting rod 50 constitute an energy storage assembly. In this embodiment, two sets of centrally symmetrical energy storage assemblies are provided, each cooperating with one of the two cylindrical structures of the linkage member 60. Compared to having only one set of energy storage assemblies, this embodiment has two sets of energy storage assemblies arranged symmetrically around the rotation axis of the linkage member 60, thereby achieving symmetrical compression energy storage, more balanced force distribution, and reducing friction between the main shaft 70 and the base 10, resulting in less wear on parts and significantly extending the product's service life.

[0057] The first bevel gear structure 81 of the second gear 80 is a sector bevel gear structure, and the second bevel gear structure 21 of the first gear 20 is a sector bevel gear structure. This makes the processing of parts simpler and requires less material. At the same time, it helps to make full use of the installation space of the base 10, and the miniaturization of the product is improved.

[0058] The end of the slide groove 51 furthest from the center of the connecting rod 50 is defined as the outer end. The slide groove 51 of the connecting rod 50 can serve as a limiting structure to limit the rotation of the linkage member 60. For example, when the linkage member 60 is located at such a position... Figure 1 The first position shown or as Figure 3 In the second position shown, the cylindrical structure of the linkage member 60 is located at the outer end of the slide groove 51, thereby limiting the maximum rotation angle of the linkage member 60 by the slide groove 51. Of course, in some other embodiments, the slide groove 51 does not serve as a limiting structure, and the linkage member 60 is located as shown in the figure. Figure 1 The first position shown or as Figure 3 In the second position shown, the cylindrical structure of the linkage member 60 does not reach the outer end of the slide groove 51. The rotation of the linkage member 60 is limited by other structures, which is also a feasible solution. For example, the two cylindrical structures of the linkage member 60 are located at the two ends of the sector bevel gear structure of the second bevel gear structure 21, respectively. The two cylindrical structures of the linkage member 60 serve as limiting mechanisms at the meshing ends of the bevel gear structures of the second gear 80 and the first gear 20, thereby limiting the rotation of the linkage member 60.

[0059] Reference Figure 9-10 The linkage component 60 of the operating mechanism 1 is connected to the contact shaft component 100 through a transmission component 90. The contact shaft component 100 is used to actuate the contact assembly to realize the opening and closing of the circuit breaker.

[0060] The linkage component 60 and the transmission component 90 are intermittently connected by transmission. Specifically, the transmission component 90 includes a first end face and a second end face that are opposite to each other. The first end face of the transmission component 90 has a convex first transmission structure 91, and the second end face of the transmission component 90 has a convex second transmission structure 92 that is symmetrical to the first transmission structure 91. The end face of the linkage component 60 has a concave third transmission structure 61, and the end face of the contact shaft component 100 has a concave fourth transmission structure 101. The first transmission structure 91 and the third transmission structure 61 are a set of shaft holes and convex shafts that can cooperate with each other for transmission, and there is a transmission stroke clearance S between the shaft hole and the convex shaft. Figure 9 As shown, this achieves intermittent transmission connection between the linkage component 60 and the transmission component 90. Of course, in other embodiments, the intermittent transmission connection between the linkage component 60 and the transmission component 90 can also be achieved in other ways, for example, through a controlled clutch mechanism.

[0061] In this embodiment, the end face of the transmission member 90 is provided with a first protrusion 91 as a first transmission structure, and the end face of the linkage member 60 is provided with an arc-shaped shaft hole 61 as a third transmission structure. The first protrusion 91 can slide in the arc-shaped shaft hole 61 along the transmission stroke gap S, so that the linkage member 60 and the transmission member 90 are intermittently connected by transmission.

[0062] The second transmission structure 92 and the fourth transmission structure 101 are a set of shaft holes and convex shafts that can cooperate with each other for transmission. In this embodiment, the second end face of the transmission member 90 is provided with a second protrusion 92 as a second transmission structure, and the contact shaft member 100 is provided with a shaft hole 101 that matches the second protrusion 92, thereby realizing the transmission member 90 to drive the contact shaft member 100. Since the linkage member 60 and the transmission member 90 are intermittently connected, that is, in the early stage of energy storage, the linkage member 60 rotates while the transmission member 90 remains stationary; when the energy storage component passes the dead point and the energy storage element 30 releases its stored energy, the linkage member 60 rotates so that the first protrusion 91 completes the arc-shaped length gap travel of the arc-shaped shaft hole 61, and then the linkage member 60 contacts the transmission member 90, driving the transmission member 90 to rotate, and thus driving the contact shaft member 100 to realize the opening and closing of the contact assembly. During the energy storage phase of the energy storage element 30, the linkage component 60 does not transmit rotational motion to the transmission component 90, making the rotation of the main shaft 70 easier; during the energy release phase of the energy storage element 30, the elastic force of the energy storage element 30 and the rotational force of the main shaft 70 work together on the contact shaft component 100, thereby achieving the opening and closing of the contact assembly with less effort.

[0063] Since the first transmission structure 91 and the second transmission structure 92 are symmetrically arranged, their positions are interchangeable. That is, by cooperating with the third transmission structure 61 through the second transmission structure 92, or by cooperating with the fourth transmission structure 101 through the first transmission structure 91, a transmission connection can be established between the contact shaft 100 and the active rotating component via the transmission component 90.

[0064] Since the first transmission structure 91 and the second transmission structure 92 are convex structures, the linkage component 60 and the contact shaft 100 are concave structures. When they are not externally connected and exposed, their rotation will not cause damage to the operator, thus improving safety.

[0065] Reference Figure 14 , Figure 15 The back of the first gear 20 can also be provided with a transmission structure for intermittent transmission connection with the transmission member 90. The first transmission structure 91 and the second transmission structure 92 of the transmission member 90 can be used for transmission connection with the contact shaft 100, the linkage member 60, or the first gear 20. In this embodiment, the first transmission structure 91 can be used for transmission connection with the first gear 20, wherein the first gear 20 and the linkage member 60 rotate synchronously, and the transmission member 90 can be intermittently transmitted to the first gear 20 through the first transmission structure 91. For example, the back of the first gear 20 can also be provided with an arc-shaped shaft hole for engaging with the first protrusion 91 of the transmission member 90, and the transmission member 90 can be intermittently transmitted to the first gear 20 through the first transmission structure 91. Thus, the operating mechanism 1 is located between the two contact mechanisms 2, such as Figure 15 As shown, the operating mechanism 1 is connected to the left and right contact mechanisms 2 respectively via two transmission components 90. The disconnector operating mechanism 1 can drive the left and right contact shafts 100 to rotate simultaneously from the middle, enabling simultaneous control of multiple contact mechanisms 2. In this case, the transmission components 90 are interchangeable, requiring no replacement or addition of parts, resulting in low manufacturing costs and easier assembly. Furthermore, the first transmission structure 91 is a convex column structure, resulting in a concave shaft hole structure on the first gear 20. When not externally connected and exposed, its rotation will not cause injury to the operator, improving safety.

[0066] Reference Figure 7-8 The main shaft 70 includes a first shaft segment 71 and a second shaft segment 72, which are intermittently connected by a transmission. One end of the second shaft segment 72 is connected to the first shaft segment 71 by a transmission.

[0067] A fifth transmission structure 711 is provided at one end of the first shaft segment 71, and a sixth transmission structure 721 is provided at one end of the second shaft segment 72. The other end of the second shaft segment 72 is connected to the second gear 80. The fifth transmission structure 711 and the sixth transmission structure 721 are a set of shafts with keyed teeth and shaft holes with keyways that can cooperate to transmit power. The central angle corresponding to the keyway is larger than the central angle corresponding to the key teeth, thereby realizing an intermittent transmission connection between the first shaft segment 71 and the second shaft segment 72.

[0068] In this embodiment, a drive shaft portion 712 is provided at one end of the first shaft segment 71, and a key 711 is provided on the drive shaft portion 712. The drive shaft portion 712 with the key 711 is the fifth transmission structure. A drive shaft hole 722 is provided at one end of the second shaft segment 72, and a keyway 721 is provided in the drive shaft hole 722. The drive shaft hole 722 with the keyway 721 is the sixth transmission structure. The drive shaft 712 is rotatably fitted with the drive shaft hole 722. The key 711 fits into the keyway 721. The central angle N corresponding to the keyway 721 is greater than the central angle M corresponding to the key 711. There is a transmission clearance angle K between the keyway 721 and the key 711. The transmission clearance angle K is equal to the central angle N corresponding to the keyway 721 minus the central angle M corresponding to the key 711. Thus, after the first shaft segment 71 rotates through the transmission clearance angle K, it contacts and drives the second shaft segment 72, which in turn drives the second shaft segment 72 to rotate. The second shaft segment 72 drives the second gear 80 to rotate, which in turn drives the first gear 20 and the linkage component 60 to rotate, thereby compressing the energy storage element 30 and realizing energy storage.

[0069] When the linkage component 60 rotates to the dead center position, such as Figure 2As shown, the energy storage element 30 reaches its maximum energy storage value. When the main shaft 70 continues to rotate, the energy storage mechanism passes the dead point and quickly begins to release energy. Because the first shaft segment 71 and the second shaft segment 72 are intermittently connected by transmission, there is a transmission gap between the first shaft segment 71 and the second shaft segment 72. Therefore, in the initial stage of energy release, the energy storage mechanism drives the second shaft segment 72 to rotate within the travel range of the transmission gap angle K. After the second shaft segment 72 has rotated through the travel range of the transmission gap angle K, the second shaft segment 72 drives the first shaft segment 71 to rotate. This allows the energy storage mechanism to obtain a large acceleration in the initial stage of energy release, thereby increasing the initial movement speed of the actuation mechanism of the contact system, which is beneficial for realizing the closing / opening of the contact system. During manual closing / opening via the handle, the hand's movement is slow compared to the millisecond-level energy release speed of the energy storage element 30 (such as a spring). If there is no transmission clearance angle K between the first shaft segment 71 and the second shaft segment 72, the hand becomes part of the resistance during the initial energy release of the energy storage element 30. This results in the energy storage element 30 driving the main shaft 70 to rotate, which in turn drives the hand, leading to extremely poor operating feel and affecting the energy release speed of the energy storage element 30. This is especially dangerous during opening, as it slows down the contact separation speed and arc transfer speed, exacerbating contact erosion. In severe cases, it may prevent the arc from being broken, leading to safety risks. By using an intermittent transmission connection between the linkage component 60, the first gear 20, and the transmission component 90, and an intermittent transmission connection between the first shaft segment 71 and the second shaft segment 72, the operating feel can be further improved, the contact separation speed can be accelerated, and the contact lifespan can be increased.

[0070] In this embodiment, the transmission clearance angle K is approximately 25°. There are three key teeth 711 and three keyways 721. Of course, the number of key teeth 711 and keyways 721 can also be other than the number of key teeth 711 and keyways 721, as long as the number of key teeth 711 and keyways 721 corresponds.

[0071] Although this embodiment uses the operating mechanism and transmission component in a disconnecting switch as an example, as those skilled in the art can foresee, the operating mechanism and transmission component can be applied to other switching devices, such as circuit breakers.

[0072] Example 2

[0073] Reference Figure 11-13In this embodiment, the switchgear is a multi-stage switchgear, that is, the switchgear includes multiple contact mechanisms 2 and multiple transmission components 90, and the rest is the same as in embodiment 1. In this specific embodiment, the switchgear is provided with two contact mechanisms 2, and the transmission component 90 can also be used to connect adjacent contact shaft components 100, so that the linkage component 60 can drive multiple contact shaft components 100 to rotate simultaneously, realizing simultaneous control of multiple contact mechanisms 2. The operating mechanism 1 is located on one side of the two parallel contact mechanisms 2; the inter-stage connection of the multiple contact mechanisms 2 is achieved by: the first transmission structure 91 and the second transmission structure 92 of the transmission component 90 being respectively connected to the fourth transmission structure 101 of the two adjacent contact shaft components 100.

[0074] The operating mechanism 1 is connected to the contact mechanism 2 via the transmission member 90, and two parallel contact mechanisms 2 are connected via the transmission member 90. The fourth transmission structure 101 is a shaft hole 101. The shaft holes 101 of adjacent contact shaft members 100 are respectively connected to the first protrusion 91 and the second protrusion 92 of the transmission member 90, thereby realizing the connection and transmission of adjacent contact shaft members 100. The first transmission structure 91 and the second transmission structure 92 of the transmission member 90 can be used for transmission connection with contact shaft members 100, linkage member 60, or first gear 20, or for transmission connection between adjacent contact shaft members 100, without the need to replace or add parts, resulting in low manufacturing cost and easier assembly.

[0075] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A switching device, wherein the switching device is a rotary switch structure, comprising an operating mechanism and a contact mechanism, the contact mechanism comprising a contact shaft connecting to a contact head, and the operating mechanism comprising a driving rotating member for driving the contact shaft, characterized in that: It also includes a transmission component, which has a first end face and a second end face that are opposite to each other. The first end face of the transmission component has a first convex transmission structure, and the second end face of the transmission component has a second convex transmission structure that is symmetrical to the first transmission structure. The active rotating component has a third concave transmission structure corresponding to the first or second transmission structure of the transmission component, and the contact shaft component has a fourth concave transmission structure corresponding to the first or second transmission structure of the transmission component. The transmission connection between the contact shaft component and the active rotating component can be achieved by any one of the following methods: A. Through the transmission connection between the first transmission structure of the transmission component and the third transmission structure of the active rotating component, and through the transmission connection between the second transmission structure of the transmission component and the fourth transmission structure of the contact shaft component; B. Through the transmission connection between the second transmission structure of the transmission component and the third transmission structure of the active rotating component, and through the transmission connection between the first transmission structure of the transmission component and the fourth transmission structure of the contact shaft component.

2. A switching device, wherein the switching device is a rotary switch structure, the switching device is a multi-stage switching device, including an operating mechanism and multiple contact mechanisms, each of the contact mechanisms including a contact shaft connecting to a contact head, the operating mechanism including a driving rotating member for driving the contact shaft, characterized in that: It also includes multiple transmission components, each comprising a first end face and a second end face that are opposite to each other. The first end face of each transmission component has a convex first transmission structure, and the second end face has a convex second transmission structure symmetrical to the first transmission structure. The active rotating component has a concave third transmission structure corresponding to either the first or second transmission structure of the transmission component. The contact shaft component has a concave fourth transmission structure corresponding to either the first or second transmission structure of the transmission component. The transmission connection between the contact shaft component and the active rotating component via the transmission components can be achieved by any one of the following methods: A A. The transmission connection between the first transmission structure of the transmission member and the third transmission structure of the active rotating member, and the transmission connection between the second transmission structure of the transmission member and the fourth transmission structure of the contact shaft member; B. The transmission connection between the second transmission structure of the transmission member and the third transmission structure of the active rotating member, and the transmission connection between the first transmission structure of the transmission member and the fourth transmission structure of the contact shaft member; wherein, the inter-stage connection of multiple contact mechanisms is achieved by: C. The transmission connection between the first and second transmission structures of the transmission member and the fourth transmission structures of two adjacent contact shaft members, respectively.

3. The switching device according to claim 1 or 2, characterized in that: The transmission component can be intermittently connected to the active rotating component via the first transmission structure or the second transmission structure.

4. The switching device according to claim 3, characterized in that: The first transmission structure is a first protrusion provided on the first end face of the transmission component, and the second transmission structure is a second protrusion provided on the second end face of the transmission component; the end face of the active rotating component is provided with an arc-shaped shaft hole, and there is a transmission stroke gap between the arc-shaped shaft hole and the first protrusion or the second protrusion, thereby realizing the intermittent transmission connection between the active rotating component and the transmission component.

5. The switching device according to claim 1 or 2, characterized in that: The contact mechanism further includes a contact assembly, and the contact shaft is used to actuate the contact assembly to achieve opening and closing. The active rotating component includes a linkage component, and the operating mechanism further includes a base. The linkage component is rotatably disposed in the base. The linkage component is connected to the contact shaft via the transmission component. The rotation of the linkage component drives the contact shaft to rotate. The rotation of the contact shaft can actuate the contact mechanism of the switching device to achieve opening and closing.

6. The switching device according to claim 5, characterized in that: The active rotating component also includes a first gear, and the operating mechanism also includes a main shaft and a second gear. The first gear and the second gear mesh with each other for transmission. The second gear is coaxially connected to one end of the main shaft. The first gear and the linkage component are interconnected and rotate synchronously.

7. The switching device according to claim 6, characterized in that: The first transmission structure is a first protrusion on the first end face of the transmission member, and the second transmission structure is a second protrusion on the second end face of the transmission member. The end face of the first gear has an arc-shaped shaft hole, and there is a transmission stroke clearance between the arc-shaped shaft hole of the first gear and the first or second protrusion, thereby realizing the intermittent transmission connection between the linkage component and the transmission member; and / or The axis of the first gear and the axis of the second gear are perpendicular to each other.

8. The switching device according to claim 5, characterized in that: The operating mechanism also includes a main shaft, which is connected to the linkage component and can drive the linkage component to rotate. The main shaft includes a first shaft segment and a second shaft segment, which are intermittently connected by transmission.

9. The switching device according to claim 8, characterized in that: The first shaft segment is provided with a fifth transmission structure at one end, and the second shaft segment is provided with a sixth transmission structure at one end. The fifth transmission structure and the sixth transmission structure are a set of shafts with keyed teeth and shaft holes with keyways that can cooperate with each other for transmission. The central angle corresponding to the keyway is greater than the central angle corresponding to the keyed teeth, thereby realizing the intermittent transmission connection between the first shaft segment and the second shaft segment.

10. The switching device according to claim 1 or 2, characterized in that: The switching device includes an operating mechanism and two contact mechanisms, and the operating mechanism is connected to the contact mechanisms via the transmission component. The operating mechanism is located between the two contact mechanisms; or The operating mechanism is located on one side of the two parallel contact mechanisms, which are connected by the transmission component.

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