Switching device

Abstract

The utility model provides a switching device which comprises a transmission member, a first end face of the transmission member is provided with a convex first transmission structure, and a second end face of the transmission member is provided with a convex second transmission structure symmetrical to the first transmission structure. The first transmission structure and the second transmission structure can be commonly used for transmission connection with the contact rotating shaft piece and the driving rotating piece and transmission connection between the adjacent contact rotating shaft pieces, parts do not need to be replaced or newly added during connection, the manufacturing cost is low, and splicing is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a switch device technical field, concretely relates to a switch device. BACKGROUND

[0002] The isolating switch can be used for operating the disconnection or closure of the circuit, and has the function of quickly disconnecting or closing, so as to minimize the influence of the arc. This switch device is usually constructed by the manual operation of the operating personnel or the operation of the operating lever through other tools, so as to operate the moving contact to disconnect or engage the static contact through a series of linked components. When the isolating switch is disconnected, the non-live part can be isolated from the live part, and a clear disconnection point is formed to isolate the faulty equipment or the equipment under maintenance. When the electrical equipment is under maintenance, the equipment under maintenance is isolated from the power supply, so as to avoid the safety accidents. The isolating switch is widely used in the power distribution system and the automatic system of the building, the electric power, the petroleum chemical industry and other industries. The common rotary isolating switch includes an operating mechanism and a contact system, and the contact system includes a moving contact and a static contact. The operating mechanism of the isolating switch drives the moving contact to move through the movement of the rotating element, so as to disconnect or engage the static contact. The operating mechanism of the isolating switch and the contact system are usually connected through a transmission member. At present, the transmission member of the isolating switch has a complex structure, and a plurality of types of transmission members are needed to realize the transmission connection between the operating mechanism and the contact system and the transmission connection between the contact systems. In addition, the unreasonable structure design of the transmission system of the isolating switch can also cause certain safety hazards. CONTENT OF THE UTILITY MODEL

[0003] Therefore, in order to solve at least one of the above problems, the utility model provides a switch device.

[0004] The utility model adopts the following scheme to realize:

[0005] The utility model provides a kind of switch device, the switch device is rotary switch structure, including operating mechanism and contact mechanism, the contact mechanism includes the contact shaft piece of connecting contact, the operating mechanism includes the active rotating piece for driving contact shaft piece, it is characterized by further including transmission part, the transmission part includes mutually diverging first end face and second end face, the first end face of the transmission part is equipped with the first transmission structure of outer convex, the second end face of the transmission part is equipped with the second transmission structure of outer convex with the first transmission structure symmetry, the active rotating piece is provided with the third transmission structure of the first transmission structure or second transmission structure of corresponding transmission part Inner recess, the contact shaft piece is provided with the fourth transmission structure of the first transmission structure or second transmission structure of corresponding transmission part Inner recess;Wherein, the contact shaft piece and active rotating piece can be optionally either one of the following by the transmission part transmission connection mode is established: A. by the transmission connection of the first transmission structure of the transmission part and the third transmission structure of the active rotating piece and by the transmission connection of the second transmission structure of the transmission part and the fourth transmission structure of the contact shaft piece, B. by the transmission connection of the second transmission structure of the transmission part and the third transmission structure of the active rotating piece and by the transmission connection of the first transmission structure of the transmission part and the fourth transmission structure of the contact shaft piece.

[0006] The utility model discloses still propose a kind of switch device, the switch device is rotary switch structure, the switch device is multistage switch device, including operating mechanism and multiple contact mechanisms, each the contact mechanism includes the contact head pivot piece of connecting contact head, the operating mechanism includes the active rotating member for driving contact head pivot piece, it is characterized by: still include multiple transmission parts, the transmission part includes mutually diverging first end face and second end face, the first end face of the transmission part is equipped with the first transmission structure of outer convex, the second end face of the transmission part is equipped with the second transmission structure of the outer convex of the symmetry with the first transmission structure, the active rotating member is provided with the third transmission structure of the first transmission structure or second transmission structure of the transmission part corresponding, the contact head pivot piece is provided with the fourth transmission structure of the first transmission structure or second transmission structure of the transmission part corresponding;Wherein, the contact head pivot piece and active rotating member can be optionally one of the following two modes by the transmission connection mode of transmission part establishment: A. by the transmission connection of the first transmission structure of the transmission part and the third transmission structure of the active rotating member and by the transmission connection of the second transmission structure of the transmission part and the fourth transmission structure of the contact head pivot piece, B. by the transmission connection of the second transmission structure of the transmission part and the third transmission structure of the active rotating member and by the transmission connection of the first transmission structure of the transmission part and the fourth transmission structure of the contact head pivot piece;Wherein, the interstage connection mode of multiple contact mechanisms is by: C. by the transmission connection of the first transmission structure and second transmission structure of the transmission part respectively and the fourth transmission structure of two adjacent contact head pivot pieces.

[0007] Wherein, in one embodiment, the transmission part can be intermittently connected with the active rotating member by the first transmission structure or the second transmission structure.

[0008] Wherein, in one embodiment, the first transmission structure is a first convex column provided on the first end face of the transmission part, and the second transmission structure is a second convex column provided on the second end face of the transmission part; 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 convex column or the second convex column, so as to realize the intermittent transmission connection between the active rotating member and the transmission part.

[0009] Wherein, in one embodiment, the contact mechanism further includes a contact assembly, the contact head pivot piece is used to actuate the contact assembly to realize opening and closing, the active rotating member includes a linkage member, the operating mechanism further includes a base, the linkage member is rotatably arranged in the base, the linkage member is connected with the contact head pivot piece by the transmission part, the rotation of the linkage member drives the rotation of the contact head pivot piece, and the rotation of the contact head pivot piece can actuate the contact mechanism of the switch device to realize opening and closing.

[0010] Wherein, in one embodiment, the active rotating part further comprises a first gear, the operating mechanism further comprises a main shaft and a second gear, the first gear and the second gear are in meshing transmission with each other, the second gear is coaxially connected to one end of the main shaft, and the first gear and the linkage member are connected with each other and rotate synchronously.

[0011] Wherein, in one embodiment, the first transmission structure is a first convex column arranged on the first end surface of the transmission member, the second transmission structure is a second convex column arranged on the second end surface of the transmission member, the end surface of the first gear is provided with an arc-shaped shaft hole, and there is a transmission stroke gap between the arc-shaped shaft hole of the first gear and the first convex column or the second convex column, so as to realize intermittent transmission connection between the linkage member 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] Wherein, in one embodiment, the operating mechanism further comprises a main shaft, the main shaft is in transmission connection with the linkage member and can drive the linkage member to rotate, the main shaft comprises a first shaft section and a second shaft section, and the first shaft section and the second shaft section are in intermittent transmission connection.

[0014] Wherein, in one embodiment, one end of the first shaft section is provided with a fifth transmission structure, one end of the second shaft section is provided with a sixth transmission structure, the fifth transmission structure and the sixth transmission structure are a set of shafts provided with key teeth and shaft holes provided with key grooves which can cooperate with each other in transmission, and the central angle corresponding to the key groove is greater than the central angle corresponding to the key tooth, so as to realize intermittent transmission connection between the first shaft section and the second shaft section.

[0015] Wherein, in one embodiment, the switch electric appliance comprises an operating mechanism and two contact mechanisms, the operating mechanism is in transmission connection with the contact mechanisms through 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 contact mechanisms arranged side by side, and the two contact mechanisms arranged side by side are in transmission connection through the transmission member.

[0018] The technical scheme provided by the utility model has the following technical effects:

[0019] 1. The utility model provides a switch device, including transmission part, the first end surface of transmission part is equipped with the first transmission structure of outer convex, transmission part's second end surface is equipped with the second transmission structure of outer convex with first transmission structure symmetry, first transmission structure second transmission structure can be used for transmission connection with contact shaft piece and driving rotator, and the transmission connection between adjacent contact shaft piece, when connecting, need not to change spare or add spare, the manufacturing cost is low, splicing is more convenient.

[0020] 2. The utility model discloses a switch device operating mechanism, intermittent transmission connection between linkage component and transmission part can improve the operation feeling, and speed up the contact separation speed, improve the contact service life. The main shaft includes first axle section and second axle section, and first axle section and second axle section are intermittent transmission connection, which can further improve the operation feeling, speed up the contact separation speed and improve the contact service life.

[0021] 3. The first transmission structure and the second transmission structure are provided with outer convex structure, so that the third transmission structure and the fourth transmission structure matched therewith are inner concave structure, so that the rotation of the third transmission structure of the driving rotator does not cause damage to the operator when exposed without external connection, and the safety is improved. DRAWINGS

[0022] Figure 1 It is the partial base hidden part of the utility model embodiment isolating switch operating mechanism, and it is the perspective view in the state of opening;

[0023] Figure 2 It is the partial base hidden part of the utility model embodiment isolating switch operating mechanism and second gear, and it is the perspective view in the state of maximum energy storage;

[0024] Figure 3 It is the partial base hidden part of the utility model embodiment isolating switch operating mechanism and second gear, and it is the perspective view in the state of closing;

[0025] Figure 4 It is the perspective view of the base hidden part of the utility model embodiment isolating switch operating mechanism;

[0026] Figure 5 It is the explosion view of the base hidden part of the utility model embodiment isolating switch operating mechanism;

[0027] Figure 6 It is the perspective view of the second gear and linkage component assembly of the utility model embodiment;

[0028] Figure 7 It is the perspective view of the utility model embodiment split type main shaft;

[0029] Figure 8 It is the perspective view of the first axle section of the utility model embodiment;

[0030] Figure 9 is an assembled perspective view of the transmission member and the linkage member of this embodiment;

[0031] Figure 10 is an assembled perspective view of the transmission member and the contact shaft member of this embodiment;

[0032] Figure 11 is an assembled perspective view of the transmission member between two contact shaft members of this embodiment;

[0033] Figure 12 is an assembled perspective view of the linkage member drivingly connecting two contact shaft members of this embodiment;

[0034] Figure 13 is an assembled perspective view of the isolating switch operating mechanism located at one side of two contact mechanisms of this embodiment;

[0035] Figure 14 is an assembled perspective view of the second gear and the linkage member drivingly connecting the contact shaft members of this embodiment;

[0036] Figure 15 is an assembled perspective view of the isolating switch operating mechanism located between two contact mechanisms of this embodiment. DETAILED DESCRIPTION

[0037] To further illustrate the embodiments, the utility model provides the drawings. These drawings are part of the utility model disclosure, which mainly serves to illustrate the embodiments, and can be combined with the relevant description of the specification to explain the operating principle of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible embodiments and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0038] The utility model will be further illustrated in combination with the drawings and specific embodiments.

[0039] Embodiment 1

[0040] Referring to Figures 1-15 , the embodiment provides a switch device, which is a rotary switch structure, and can be an isolating switch or a circuit breaker. In this embodiment, the switch device is an isolating switch. In particular, referring to Figure 13 , the switch device comprises an isolating switch operating mechanism 1, a contact mechanism 2 and a transmission member 90. In this embodiment, two contact mechanisms 2 are provided, but the number of contact mechanisms 2 can be more or less. The contact mechanism 2 comprises a contact shaft member 100 and a contact assembly, and the contact shaft member 100 is used to actuate the contact assembly to realize opening and closing.

[0041] The operating mechanism 1 comprises a driving rotating member for driving the contact rotating shaft 100. In the embodiment, the driving rotating member for driving the contact rotating shaft 100 is the linkage member 60 and the first gear 20.

[0042] Specifically, as shown in Figures 1-8 the disconnecting switch operating mechanism 1 comprises a base 10, a main shaft 70, a first gear 20, a second gear 80, an energy storage element 30, a pin shaft 40, a connecting rod 50, and a linkage member 60.

[0043] The second gear 80 is coaxially connected to one end of the main shaft 70, and the main shaft 70 is used to transmit a rotating motion, such as the rotating motion of a handle, which can actuate the contact system to realize opening and closing after transmission. Specifically, the axis of the main shaft 70 is perpendicular to the axis of the first gear 20, the second gear 80 comprises a first bevel gear structure 81, the first gear 20 comprises a second bevel gear structure 21, and the bevel gear structures of the second gear 80 and the first gear 20 are matched with each other to realize vertical power transmission.

[0044] Referring to Figure 6 , the first gear 20 and the linkage member 60 are rotatably arranged in the base 10, and the first gear 20 and the linkage member 60 are matched by plug-in structures to realize synchronous rotation. The linkage member 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 cylindrical and circular holes that can be mutually plugged and matched, thereby realizing the plug-in matching of the first gear 20 and the linkage member 60.

[0045] In the embodiment, the first cylindrical structure 61 is provided with a butt joint cylinder 611, and the second cylindrical structure 22 is provided with a butt joint hole 221. The butt joint cylinder 611 can be plugged and matched with the butt joint hole 221.

[0046] The linkage member 60 is drivingly connected to the actuating mechanism of the contact system. Through the rotation of the main shaft 70, the rotation of the linkage member 60 is realized, and the rotation of the linkage member 60 is used to actuate the contact system to realize opening and closing.

[0047] In the embodiment, the vertical power transmission is realized by taking the main shaft 70 axis being perpendicular to the first gear 20 axis as an example. In other embodiments, according to the needs of the specific rotating transmission direction, the main shaft 70 axis can be parallel to the first gear 20 axis, or at a certain angle, which can also realize the transmission of power; or the main shaft 70 is directly linked to the linkage member 60, which is also a feasible technical solution.

[0048] The energy storage element 30 can be a compression spring or a tension spring or other energy storage element, such as a gas spring, and the present embodiment takes the compression spring as an example for illustration. The rotation of the linkage member 60 can actuate the energy storage element 30 to store energy. In the present 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, and the connecting rod 50 is used to guide and limit the energy storage element 30 during compression energy storage or energy 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 through the pin shaft 40, so that 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 sliding groove 51, and the butt joint cylinder 611 of the linkage member 60 is sleeved in the sliding 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 is respectively abutted on the pin shaft 40 and the first cylinder structure 61 and / or the second cylinder structure 22. Of course, the connecting rod 50 can also guide and limit the energy storage element 30 in other ways, for example, the connecting rod 50 is provided with a guide groove, and the energy storage element 30 is guided and limited through the guide groove. In the present embodiment, the energy storage element 30 is sleeved on the connecting rod 50, so that the connecting rod 50 guides and limits the energy storage element 30 during energy storage or energy release, and the structure is simpler.

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

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

[0051] In other embodiments, the sliding groove 51 of the connecting rod 50 can also be arranged at the opposite end of the present scheme, that is, one end of the connecting rod 50 can be hinged with the linkage member 60, and the other end of the connecting rod 50 is provided with the sliding groove 51 and is slidably connected with the pin shaft 40, which is also a feasible technical scheme. However, in this scheme, the end of the connecting rod 50 provided with the sliding groove 51 will be likely to protrude out of the base 10 due to the pushing of the linkage member 60, resulting in that the base 10 needs to have a larger volume, thereby being 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 the present embodiment, the connecting rod 50 is rotatably and slidably connected with the linkage member 60, so that the pushing of the linkage member 60 makes the end of the connecting rod 50 provided with the sliding groove 51 protrude into the linkage member 60, thereby the base 10 has a smaller volume, the product is more compact, and the present scheme has a simple structure, is easy to manufacture, and can reduce the cost.

[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 groups of center-symmetric energy storage assemblies are arranged and matched with the two cylindrical structures of the linkage member 60. Compared with the energy storage assembly provided with only one group, the energy storage assembly in this embodiment is provided with two groups and is arranged in a center-symmetric manner around the rotation axis of the linkage member 60, so that the symmetrical compression energy storage can be realized, the stress is more balanced, the friction of the main shaft 70 on the base 10 can be reduced, the part wear is smaller, and the service life of the product can be significantly prolonged.

[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, so that the machining of the parts is simpler and the material is less, and at the same time, the installation space of the base 10 can be fully utilized, and the product miniaturization is improved.

[0058] The end of the sliding groove 51 far away from the center of the connecting rod 50 is defined as the outer end, and the sliding 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 the first position as shown in Figure 1 or the second position as shown in Figure 3 , the cylindrical structure of the linkage member 60 is at the outer end of the sliding groove 51, so that the sliding groove 51 limits the maximum rotation angle of the linkage member 60. Of course, in some other embodiments, the sliding groove 51 does not serve as a limiting structure, and when the linkage member 60 is located at the first position as shown in Figure 1 or the second position as shown in Figure 3 , the cylindrical structure of the linkage member 60 does not reach the outer end of the sliding groove 51, and the rotation of the linkage member 60 is limited by other structures, which is also a feasible scheme. 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, and the two cylindrical structures of the linkage member 60 serve as the limiting mechanism of the meshing end of the bevel gear structure of the first gear 20 and the second gear 80, to limit the rotation of the linkage member 60.

[0059] Referring to Figures 9-10 , the linkage member 60 of the operating mechanism 1 is drivingly connected to the contact shaft member 100 through a transmission member 90, and the contact shaft member 100 is used to actuate the contact assembly to realize opening and closing.

[0060] The linkage member 60 is intermittently connected with the transmission member 90. Specifically, the transmission member 90 includes a first end face and a second end face which are away from each other, the first end face of the transmission member 90 is provided with a first transmission structure 91 which is convex outward, the second end face of the transmission member 90 is provided with a second transmission structure 92 which is convex outward and is symmetrical to the first transmission structure 91, the end face of the linkage member 60 is provided with a third transmission structure 61 which is concave inward, the end face of the contact shaft member 100 is provided with a fourth transmission structure 101 which is concave inward, the first transmission structure 91 and the third transmission structure 61 are a group of shaft holes and convex shafts which can be matched with each other for transmission, and there is a transmission stroke gap S between the shaft hole and the convex shaft, as shown in FIG. 8, so as to realize the intermittent transmission connection between the linkage member 60 and the transmission member 90. Of course, in other embodiments, the intermittent transmission connection between the linkage member 60 and the transmission member 90 can also be realized by other ways, for example, by a controlled clutch mechanism. Figure 9

[0061] In the embodiment, the end face of the transmission member 90 is provided with a first convex column 91 as the first transmission structure, the end face of the linkage member 60 is provided with an arc-shaped shaft hole 61 as the third transmission structure, the first convex column 91 can slide in the arc-shaped shaft hole 61 along the transmission stroke gap S, so as to realize the intermittent transmission connection between the linkage member 60 and the transmission member 90.

[0062] The second transmission structure 92 and the fourth transmission structure 101 are a group of shaft holes and convex shafts which can be matched with each other for transmission. In the embodiment, the second end face of the transmission member 90 is provided with a second convex column 92 as the second transmission structure, the contact shaft member 100 is provided with a shaft hole 101 which is matched with the second convex column 92, so as to realize the transmission connection between the transmission member 90 and the contact shaft member 100. Since the linkage member 60 is intermittently connected with the transmission member 90, in the early stage of the energy storage mechanism, the linkage member 60 rotates and the transmission member 90 does not move; when the energy storage component rotates through the dead point and the energy of the energy storage element 30 is released, the linkage member 60 rotates to make the first convex column 91 complete the arc-shaped length gap stroke of the arc-shaped shaft hole 61, then the linkage member 60 contacts with the transmission member 90 to drive the transmission member 90 to rotate, and then drive the contact shaft member 100 to realize the opening and closing of the contact assembly. In the energy storage stage of the energy storage element 30, the linkage member 60 does not transmit the rotary motion to the transmission member 90, and the rotation of the main shaft 70 is more relaxed; in the energy release stage of the energy storage element 30, the elastic force of the energy storage element 30 and the rotation force of the main shaft 70 jointly act on the contact shaft member 100, so as to more labor-savingly realize the opening and closing of the contact assembly.

[0063] ​Since the first transmission structure 91 and the second transmission structure 92 are symmetrically arranged, the positions of the first transmission structure 91 and the second transmission structure 92 are interchangeable. That is, the transmission connection between the contact rotating shaft 100 and the driving rotating member through the transmission member 90 can also be achieved by the cooperation between the second transmission structure 92 and the third transmission structure 61, or by the cooperation between the first transmission structure 91 and the fourth transmission structure 101.

[0064] Since the first transmission structure 91 and the second transmission structure 92 are convex column structures, they are internally recessed structures on the linkage member 60 and the contact rotating shaft 100, and when they are not externally connected, their rotation will not cause damage to the operator, and the safety is improved.

[0065] Referring to Figure 14 , Figure 15 , the back surface of the first gear 20 can also be provided with a transmission structure to intermittently connect 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 rotating shaft 100, the linkage member 60 or the first gear 20. In the 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 connected with the first gear 20 through the first transmission structure 91. For example, the back surface of the first gear 20 can also be provided with an arc-shaped shaft hole for cooperation with the first convex column 91 of the transmission member 90, and the transmission member 90 can be intermittently connected with the first gear 20 through the first transmission structure 91. In this way, the operating mechanism 1 is located between two contact mechanisms 2, as shown in Figure 15 , the operating mechanism 1 is connected with the left and right contact mechanisms 2 through two transmission members 90 respectively. The disconnecting switch operating mechanism 1 can be driven by the middle part to rotate the left and right contact rotating shafts 100 simultaneously, and can realize simultaneous control of multiple contact mechanisms 2. At this time, the transmission member 90 can be universal, without the need to replace or add parts, the manufacturing cost is low, and the splicing is more convenient. Moreover, the first transmission structure 91 is a convex column structure, which is an internally recessed shaft hole structure on the first gear 20, and when it is not externally connected, its rotation will not cause damage to the operator, and the safety is improved.

[0066] Referring to Figures 7-8 , the main shaft 70 includes a first shaft segment 71 and a second shaft segment 72, and the first shaft segment 71 and the second shaft segment 72 are intermittently connected. One end of the second shaft segment 72 is connected with the first shaft segment 71.

[0067] One end of the first shaft segment 71 is provided with a fifth transmission structure 711, one end of the second shaft segment 72 is provided with a sixth transmission structure 721, and the other end of the second shaft segment 72 is connected with the second gear 80. The fifth transmission structure 711 and the sixth transmission structure 721 are a set of shafts with key teeth and shaft holes with key grooves that can cooperate with each other to transmit power, and the central angle corresponding to the key groove is greater than the central angle corresponding to the key tooth, so as to realize intermittent transmission connection of the first shaft segment 71 and the second shaft segment 72.

[0068] In the embodiment, one end of the first shaft segment 71 is provided with a transmission shaft part 712, the transmission shaft part 712 is provided with a key tooth 711, and the transmission shaft part 712 provided with the key tooth 711 is the fifth transmission structure. One end of the second shaft segment 72 is provided with a transmission shaft hole 722, the transmission shaft hole 722 is provided with a key groove 721, and the transmission shaft hole 722 provided with the key groove 721 is the sixth transmission structure. The transmission shaft part 712 and the transmission shaft hole 722 are rotatably matched, the key tooth 711 is matched in the key groove 721, the central angle N corresponding to the key groove 721 is greater than the central angle M corresponding to the key tooth 711, there is a transmission clearance angle K between the key groove 721 and the key tooth 711, the transmission clearance angle K is equal to the central angle N corresponding to the key groove 721 minus the central angle M corresponding to the key tooth 711, so that the first shaft segment 71 is in contact with the second shaft segment 72 after rotating through the transmission clearance angle K to drive the second shaft segment 72 to rotate, the second shaft segment 72 drives the second gear 80 to rotate, so as to drive the first gear 20 and the linkage member 60 to rotate, and then compress the energy storage element 30 to realize energy storage.

[0069] When the linkage member 60 rotates to the dead point position, as shown in FIG. 6, the first gear 20 is in contact with the second gear 80, and the first gear 20 and the second gear 80 are in the state of being in contact and rotating with each other. Figure 2As shown, the energy storage element 30 stores energy to a maximum value. When the main shaft 70 continues to rotate, the energy storage mechanism passes the dead point and starts to release energy rapidly, because the first shaft segment 71 and the second shaft segment 72 are intermittently connected, and there is a transmission gap between the first shaft segment 71 and the second shaft segment 72, so in the initial stage of energy release of the energy storage mechanism, the second shaft segment 72 rotates within the transmission gap angle K, and after the second shaft segment 72 rotates through the transmission gap angle K, the second shaft segment 72 drives the first shaft segment 71 to rotate, so that the energy storage mechanism can obtain a larger acceleration in the initial stage of energy release, thereby improving the initial movement speed of the actuator of the contact system, which is beneficial to realize the closing / opening of the contact system. During the manual closing / opening process by the handle, the movement speed of the hand is slow relative to the millisecond-level energy release speed of the energy storage element 30 (such as a spring), and if there is no transmission gap angle K between the first shaft segment 71 and the second shaft segment 72, the hand becomes part of the resistance in the initial stage of energy release of the energy storage element 30, and becomes the rotation of the main shaft 70 driven by the energy storage element 30, and the rotation of the hand driven by the main shaft 70, which has a poor operation feel and affects the energy release speed of the energy storage element 30, especially during opening, which brings great harm, slows down the contact separation speed, slows down the arc transfer speed, aggravates the contact ablation, and in severe cases, the arc may not be broken, resulting in safety risks. On the basis of the intermittent transmission connection between the linkage member 60 and the first gear 20 and the transmission member 90, the intermittent transmission connection between the first shaft segment 71 and the second shaft segment 72 can further improve the operation feel, speed up the contact separation speed, and improve the service life of the contact.

[0070] In this embodiment, the transmission gap angle K is about 25°. The number of key teeth 711 and key grooves 721 is 3. Of course, the number of key teeth 711 and key grooves 721 can be other numbers, as long as the number of key teeth 711 and key grooves 721 corresponds.

[0071] Although the operation mechanism and the transmission member in the disconnector are taken as examples for illustration in this embodiment, as can be foreseen by those skilled in the art, the operation mechanism and the transmission member can be applied to other switch electrical apparatuses, such as circuit breakers.

[0072] Embodiment 2

[0073] Reference Figures 11-13In the embodiment, the switch electric appliance is a multi-stage switch electric appliance, that is, the switch electric appliance comprises multiple contact mechanisms 2 and multiple transmission members 90, and the rest is the same as that in the embodiment 1. In the specific embodiment, the switch electric appliance is provided with two contact mechanisms 2, and the transmission member 90 can also be used for connecting the adjacent contact shaft members 100, so that the linkage member 60 can drive multiple contact shaft members 100 to rotate simultaneously, and the simultaneous control of multiple contact mechanisms 2 is realized. The operating mechanism 1 is located on one side of the two parallel contact mechanisms 2; the inter-stage connection mode of the multiple contact mechanisms 2 is that the first transmission structure 91 and the second transmission structure 92 of the transmission member 90 are respectively connected in transmission with the fourth transmission structure 101 of the adjacent two contact shaft members 100.

[0074] The operating mechanism 1 is connected in transmission with the contact mechanism 2 through the transmission member 90, and the two parallel contact mechanisms 2 are connected in transmission through the transmission member 90. The fourth transmission structure 101 is a shaft hole 101, and the shaft holes 101 of the adjacent contact shaft members 100 are respectively connected with the first protruding column 91 and the second protruding column 92 of the transmission member 90, so that the connection transmission of the adjacent contact shaft members 100 is realized. 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 member 100 or the linkage member 60 or the first gear 20, or the transmission connection between the adjacent contact shaft members 100, without the need of replacing or adding parts, and the manufacturing cost is low, and the splicing is more convenient.

[0075] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and detail without departing from the spirit and scope of the utility model defined in the appended claims, and all are within the protection scope of the utility model.

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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