Transmission mechanism and isolating switch

Abstract

The utility model provides a transmission mechanism and an isolating switch, and belongs to the technical field of electrical equipment. The transmission mechanism is applied to the disconnecting switch, the disconnecting switch comprises a moving contact assembly, and the transmission mechanism comprises a support, a swing lever, a connecting rod assembly and an energy storage part. The swing lever is rotationally connected to the support. The first part of the connecting rod assembly is rotatably connected to the support, and the second part of the connecting rod assembly is connected with the moving contact assembly. The first end of the energy storage piece is connected to the swing lever, and the second end of the energy storage piece is connected to the third part of the connecting rod assembly. The energy storage piece is located on the first side of the connecting rod assembly, and when the swing lever swings relative to the support, the energy storage piece swings along with the swing lever and stores energy. When the energy storage part swings from the first side of the connecting rod assembly to the second side of the connecting rod assembly, the energy storage part releases energy to drive the connecting rod assembly to act to drive the moving contact assembly to rotate. The connecting rod assembly is combined with the moving contact assembly, so that the probability that the contact assembly of the disconnecting switch cannot be disconnected or closed is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a transmission mechanism and an isolating switch. Background Art

[0002] Isolating switches are often used to disconnect or connect circuits to ensure the safety of personnel and equipment. For example, in maintenance, overhaul or emergency situations, isolating switches can be used to disconnect circuits.

[0003] A transmission mechanism and a contact assembly are provided inside the isolating switch. When the isolating switch needs to disconnect or connect the circuit, the transmission mechanism is driven to drive the contact assembly to disconnect or close, so as to achieve the effect of disconnecting or conducting the circuit.

[0004] In the prior art, the transmission mechanism often fails to drive properly, resulting in the inability of the contact assembly to open or close. Therefore, a transmission mechanism and an isolating switch are urgently needed. Utility Model Content

[0005] The present application provides a transmission mechanism and an isolating switch, which reduce the probability that a contact assembly of the isolating switch cannot be opened or closed.

[0006] In a first aspect, the present application provides a transmission mechanism, which is applied to an isolating switch, wherein the isolating switch includes a moving contact assembly, and the transmission mechanism includes: a bracket, a swing lever, a connecting rod assembly, and an energy storage member. The swing lever is rotatably connected to the bracket. The first part of the connecting rod assembly is rotatably connected to the bracket, and the second part of the connecting rod assembly is used to connect to the moving contact assembly. The first end of the energy storage member is fixedly connected to the swing lever, and the second end of the energy storage member is fixedly connected to the third part of the connecting rod assembly.

[0007] The energy storage member is located at the first side of the connecting rod assembly, and when the swing lever swings relative to the bracket, the energy storage member swings with the swing lever and stores energy. When the energy storage member swings from the first side of the connecting rod assembly to the second side of the connecting rod assembly, the energy storage member releases energy and drives the connecting rod assembly to move, so that the third part drives the moving contact assembly to rotate.

[0008] Through the above scheme, the present application cooperates with the connecting rod assembly and the moving contact assembly. Since the cooperation between the connecting rod assembly and the moving contact assembly is smoother, the probability of the contact assembly failing to open or close due to the transmission mechanism not being driven in place can be reduced. In addition, the connecting rod assembly has less wear during use, which increases the service life of the internal components of the disconnector.

[0009] The energy storage component is used to store energy first and then release the energy to drive the connecting rod assembly to move, thereby driving the moving contact assembly to rotate, so that the disconnector is closed or disconnected. This not only improves the sensitivity of the disconnector when closing or disconnecting, but the setting of the energy storage component can also enable the disconnector to achieve full energy storage opening and closing regardless of manpower, thereby increasing the stability of the use of the disconnector.

[0010] In a possible design, the moving contact assembly includes a first moving contact group, a second moving contact group, and a third moving contact group that are spaced apart, and the connecting rod assembly includes a first connecting rod group and a second connecting rod group that are spaced apart. The first connecting rod group is located between the first moving contact group and the second moving contact group, and the first connecting rod group is rotatably connected to the first moving contact group and / or the second moving contact group. The second connecting rod group is located between the second moving contact group and the third moving contact group, and the second connecting rod group is rotatably connected to the second moving contact group and / or the third moving contact group. The energy storage member is located between the first connecting rod group and the second connecting rod group.

[0011] Through the above scheme, the connecting rod assembly is set as the first connecting rod assembly and the second connecting rod assembly, so that the first connecting rod assembly and the second connecting rod assembly are located between the first moving contact assembly, the second moving contact assembly and the third moving contact assembly, which reduces the difficulty of the connecting rod assembly driving the moving contact assembly to move, and multiple connecting rod assemblies are respectively matched with the moving contact assembly, which can make the operation of the moving contact assembly smoother. The energy storage component is set between the first connecting rod assembly and the second connecting rod assembly, so that not only can the energy storage component drive the first connecting rod assembly and the second connecting rod assembly to move at the same time, but also the stability of the energy storage component driving the connecting rod assembly to move can be increased.

[0012] In a possible design, the bracket includes a first support plate and a second support plate that are spaced apart. The first connecting rod group includes a first connecting rod and a second connecting rod, and the second connecting rod group includes a third connecting rod and a fourth connecting rod. The transmission mechanism also includes a first shaft, one end of which passes through the first connecting rod and the second connecting rod and is movably connected to the first support plate, and the other end of the first shaft passes through the third connecting rod and the fourth connecting rod and is movably connected to the second support plate. The second end of the energy storage member is fixedly connected to the first shaft.

[0013] Through the above scheme, the first connecting rod is movably connected to the second connecting rod, the third connecting rod is movably connected to the fourth connecting rod, and the two ends of the first shaft pass through the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod respectively, and then are movably connected to the bracket. In this way, the stability of the connecting rod assembly can be increased, and the probability of the components in the connecting rod assembly being offset during the disconnection or closing process of the disconnecting switch is reduced. The second end of the energy storage component is fixedly connected to the first shaft, so that the first connecting rod group and the second connecting rod group can move synchronously, thereby increasing the stability when the disconnecting or closing of the disconnecting switch.

[0014] In a possible design, the first support plate is provided with a first limiting groove, and the second support plate is provided with a second limiting groove. One end of the first shaft is located in the first limiting groove and can move in the first limiting groove, and the other end of the first shaft is located in the second limiting groove and can move in the second limiting groove.

[0015] Through the above scheme, the first limiting groove and the second limiting groove are respectively arranged on the first supporting plate and the second supporting plate, so that the two ends of the first shaft are respectively placed in the first limiting groove and the second limiting groove. Not only can the first limiting groove and the second limiting groove be used to limit the movement of the first shaft, but also the probability of excessive movement of the connecting rod assembly due to excessive movement of the first shaft due to the lack of limiting is reduced. In addition, the setting of the first limiting groove and the second limiting groove can also guide the movement of the first shaft, thereby guiding the movement of the connecting rod assembly.

[0016] In a possible design, the transmission mechanism further includes a handle assembly and a conversion member. The handle assembly is provided with a push portion toward the conversion member, and a waist-shaped groove is provided at the first end of the conversion member, and the push portion is located in the waist-shaped groove. When the push portion rotates with the handle assembly, it can push the waist-shaped groove, so that the conversion member swings around the second end of the conversion member. The conversion member is also provided with a mounting groove, and the end of the swing lever is located in the mounting groove. When the conversion member swings, the mounting groove can push the swing lever, so that the swing lever swings with the conversion member.

[0017] Through the above scheme, a handle assembly and a conversion part are arranged in the transmission mechanism, which not only simplifies the operation of the transmission mechanism, but also converts the rotation process of the handle assembly into the swing process of the swing lever, so that the swing lever drives the connecting rod assembly to operate, and ensures that the connecting rod assembly can operate normally without changing the common operation method of the isolating switch.

[0018] In a possible design, the handle assembly includes a rotating handle and an extension arm, one end of the extension arm is connected to the rotating handle, and the push portion is arranged at the other end of the extension arm opposite to the waist-shaped groove.

[0019] Through the above scheme, the handle assembly is arranged in the form of a combination of a rotating handle and an extension arm, which increases the flexibility of the handle assembly assembly. It is no longer necessary to select a handle assembly that matches the size of the conversion member based on the size of the conversion member. It is only necessary to make one end of the extension arm mounting the push portion correspond to the waist-shaped groove position set at the first end of the conversion member.

[0020] In a possible design, the transmission mechanism further includes a cushion block, which is connected to a groove wall of the mounting groove, and the end of the swing lever abuts against the cushion block in the mounting groove.

[0021] Through the above scheme, the present application sets a pad in the installation groove, and uses the pad to form a buffer between the conversion part and the swing lever. In this way, when the conversion part drives the swing lever to swing, the probability of collision between the conversion part and the swing lever can be reduced, thereby increasing the service life of the transmission mechanism.

[0022] In a possible design, the bracket is provided with a first limit piece and a second limit piece, and the swing lever swings between the first limit piece and the second limit piece.

[0023] Through the above scheme, a first limit member and a second limit member are arranged on the bracket, and part of the swing lever is placed between the first limit member and the second limit member, so that the swing amplitude of the swing lever can be limited, thereby reducing the probability of problems in the operation of the connecting rod assembly due to excessive swing amplitude of the swing lever, and increasing the reliability of the disconnection or closing of the isolating switch.

[0024] In a second aspect, the present application provides an isolating switch, comprising a housing, a moving contact assembly, a stationary contact, and the transmission mechanism mentioned in the first aspect. The moving contact assembly, the stationary contact, and the transmission mechanism are all arranged in the housing, and the moving contact assembly cooperates with the stationary contact.

[0025] Through the above scheme, the present application utilizes the transmission mechanism to drive the moving contact assembly to move, thereby contacting or separating with the static contact, and can realize the closing or opening of the rotary switch. Compared with the traditional rotary switch, the present application sets the transmission mechanism in the form of a connecting rod assembly, and uses the energy storage component to drive the connecting rod assembly to move, thereby driving the moving contact assembly to move. In this way, the cooperation between the transmission mechanism and the moving contact assembly can be smoother. In addition, the setting of the energy storage component not only improves the sensitivity of the isolating switch when it is closed or opened, but also reduces the probability of the transmission mechanism not being driven in place, resulting in the inability to open or close the contact assembly, thereby increasing the stability of the use of the isolating switch.

[0026] In a possible design, the moving contact assembly is disc-shaped, and the second portion of the connecting rod assembly is connected to a non-center portion of the moving contact assembly.

[0027] Through the above scheme, the disc-shaped moving contact assembly has higher stability than the traditional moving contact. The second part of the connecting rod assembly is connected to the non-center part of the moving contact assembly. When the moving contact assembly is actuated, the disc-shaped moving contact assembly can be driven to rotate, so that the moving contact and the static contact are in contact or separated. This arrangement ensures the normal operation of the moving contact assembly and increases the reliability of the isolating switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of an isolating switch provided in an embodiment of the present application.

[0029] Figure 2 A schematic diagram of the internal structure of the isolating switch provided in an embodiment of the present application.

[0030] Figure 3 A schematic diagram of the assembly structure of the transmission assembly and the moving contact assembly provided in an embodiment of the present application.

[0031] Figure 4 A schematic diagram of the structure of the transmission assembly provided in an embodiment of the present application at a certain viewing angle.

[0032] Figure 5 A schematic diagram of the structure of the transmission assembly provided in an embodiment of the present application from another perspective.

[0033] Figure 6 A schematic diagram of the structure of the bracket provided in an embodiment of the present application at a certain viewing angle.

[0034] Figure 7 A schematic diagram of the structure of the bracket provided in an embodiment of the present application from another perspective.

[0035] Figure 8 A schematic diagram of the assembly structure of the handle assembly and the conversion member provided in an embodiment of the present application.

[0036] Fig. 9 A schematic diagram of the structure of the handle assembly provided in an embodiment of the present application.

[0037] Fig.10 A schematic diagram of the structure of the conversion element provided in an embodiment of the present application.

[0038] Fig.11 A partial structural assembly view of a transmission component provided in an embodiment of the present application.

[0039] Fig.12 A schematic diagram of the internal structure of the isolating switch provided in an embodiment of the present application.

[0040] Fig.13 A schematic diagram of the structure of the extension arm provided in an embodiment of the present application.

[0041] Fig.14 A schematic diagram of the internal structure of the isolating switch provided in an embodiment of the present application.

[0042] Fig.15 A partial structural assembly view of a connecting rod assembly and a moving contact assembly provided in an embodiment of the present application.

[0043] Description of reference numerals:

[0044] 100, bracket; 110, first support plate; 111, first limiting groove; 120, second support plate; 121, second limiting groove; 130, first limiting member; 140, second limiting member;

[0045] 200. Swing lever;

[0046] 300, connecting rod assembly; 310, first part; 320, second part; 330, third part; 340, first connecting rod group; 341, first connecting rod; 342, second connecting rod; 350, second connecting rod group; 351, third connecting rod; 352, fourth connecting rod;

[0047] 400, energy storage element; 410, first end of the energy storage element; 420, second end of the energy storage element;

[0048] 500, moving contact assembly; 510, first moving contact group; 520, second moving contact group; 530, third moving contact group;

[0049] 600, first axis;

[0050] 700, handle assembly; 710, push portion; 720, rotating handle; 730, extension arm;

[0051] 800, conversion member; 810, first end of conversion member; 811, waist-shaped groove; 820, second end of conversion member; 830, mounting groove; 840, cushion block;

[0052] 900, housing; 910, upper cover; 920, base. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0055] The terms "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0056] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0057] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0058] The directional words appearing in the following description are all directions shown in the figures, and do not limit the static contact of a circuit breaker of the present application and the specific structure of the circuit breaker. For example, in the description of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0059] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0060] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection may also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. The "connection" or "connection" of a circuit structure may refer to an electrical connection or a signal connection in addition to a physical connection. For example, it may be a direct connection, that is, a physical connection, or it may be an indirect connection through at least one intermediate element, as long as the circuit is connected, or it may be the internal connection of two elements; the signal connection may refer to a signal connection through a media medium, such as a radio wave, in addition to a signal connection through a circuit. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0062] Figure 1 A schematic diagram of an isolating switch provided in an embodiment of the present application. Figure 2 A schematic diagram of the internal structure of the isolating switch provided in an embodiment of the present application. Figure 3 A schematic diagram of the assembly structure of the transmission assembly and the moving contact assembly provided in an embodiment of the present application. Figure 4 This is a schematic diagram of the structure of the transmission assembly provided in an embodiment of the present application at a certain viewing angle. Figures 1 to 4 As shown, the present application provides a transmission mechanism, which is applied to an isolating switch, and the isolating switch includes a moving contact assembly 500, and the transmission mechanism includes: a bracket 100, a swing lever 200, a connecting rod assembly 300 and an energy storage member 400. The swing lever 200 is rotatably connected to the bracket 100. The first portion 310 of the connecting rod assembly 300 is rotatably connected to the bracket 100, and the second portion 320 of the connecting rod assembly 300 is used to connect with the moving contact assembly 500. The first end 410 of the energy storage member is fixedly connected to the swing lever 200, and the second end 420 of the energy storage member is fixedly connected to the third portion 330 of the connecting rod assembly 300.

[0063] The energy storage member 400 is located at the first side of the connecting rod assembly 300, and when the swing lever 200 swings relative to the bracket 100, the energy storage member 400 swings and stores energy along with the swing lever 200. When the energy storage member 400 swings from the first side of the connecting rod assembly 300 to the second side of the connecting rod assembly 300, the energy storage member 400 releases energy and drives the connecting rod assembly 300 to move, so that the third portion 330 drives the moving contact assembly 500 to rotate.

[0064] Isolating switches are mainly used to isolate power supplies, connect and disconnect low-current circuits, and play an isolating role in circuits. Isolating switches can separate the equipment or lines that need to be repaired from the power supply with an obvious disconnection point to ensure the safety of maintenance personnel and equipment.

[0065] The isolating switch is provided with a housing 900, which includes an upper cover 910 and a base 920. The upper cover 910 and the base 920 are covered to form an installation space, and the bracket 100, the swing lever 200, the connecting rod assembly 300 and the energy storage component 400 are all arranged in the installation space.

[0066] The bracket 100 can be plate-shaped or column-shaped. Both the upper cover 910 and the base 920 are provided with a slot, and the slot provided on the upper cover 910 is opposite to the slot provided on the base 920. The bracket 100 is arranged in the slot. When the upper cover 910 is covered with the base, the slots on the upper cover 910 and the base 920 can limit the bracket 100.

[0067] The swing lever 200 may be cylindrical, prismatic or plate-shaped, etc. A groove is provided on the swing lever 200, and a protrusion is provided on the bracket 100, or a protrusion is provided on the swing lever 200, and a groove is provided on the bracket 100, and the protrusion and the groove match, so that the swing lever 200 can be rotatably connected to the bracket 100.

[0068] like Figure 4 As shown, the connecting rod assembly 300 may be composed of at least two connecting rods, and the multiple connecting rods are all rotatably connected. The first portion 310 of the connecting rod assembly 300 may be the upper portion of the connecting rod assembly 300, the first portion 310 of the connecting rod assembly 300 is rotatably connected to the bracket 100, the second portion 320 of the connecting rod assembly 300 may be the lower portion of the connecting rod assembly 300, the second portion 320 of the connecting rod assembly 300 is rotatably connected to the moving contact assembly 500, and the third portion 330 of the connecting rod assembly 300 may be the middle portion of the connecting rod assembly 300.

[0069] The energy storage member 400 may be an elastic member such as a spring or an elastic rope that can absorb and release energy by changing its shape. The swing lever 200 and the third portion 330 of the connecting rod assembly 300 are both provided with a mounting portion. The first end 410 of the energy storage member may be fixedly connected to the mounting portion provided on the swing lever 200, and the second end 420 of the energy storage member may be fixedly connected to the mounting portion provided on the third portion 330.

[0070] The first side of the connecting rod assembly 300 and the second side of the connecting rod assembly 300 are two positions symmetrical with the connecting rod assembly 300 as the symmetry axis. In the process of the swing lever 200 swinging from the first side of the connecting rod assembly 300 to the position parallel to the upper part of the connecting rod assembly 300, the energy storage member 400 swings with the swing lever 200 and stores energy. In this process, the connecting rod assembly 300 does not move. When the swing lever 200 continues to swing from the position parallel to the upper part of the connecting rod assembly 300 to the second side of the connecting rod assembly 300, the energy storage member 400 releases energy and drives the connecting rod assembly 300 to move, so that the lower part of the connecting rod assembly 300 drives the moving contact assembly 500 to rotate. In this process, the swing lever 200 can continue to be forced to swing, or the swing lever 200 and the connecting rod assembly 300 can be driven to move together by the energy storage member 400 releasing energy.

[0071] In summary, the present application cooperates with the connecting rod assembly 300 and the moving contact assembly 500. Since the cooperation between the connecting rod assembly 300 and the moving contact assembly 500 is smoother, the probability of the contact assembly failing to open or close due to the transmission mechanism not being driven in place can be reduced. In addition, the connecting rod assembly 300 has less wear during use, thereby increasing the service life of the internal components of the isolating switch.

[0072] The energy storage component 400 is utilized to first store energy and then release energy to drive the connecting rod assembly 300 to move, thereby driving the moving contact assembly 500 to rotate, so that the disconnector is closed or disconnected. This not only improves the sensitivity of the disconnector when closing or disconnecting, but also the setting of the energy storage component 400 can enable the disconnector to achieve full energy storage opening and closing regardless of manpower, thereby increasing the stability of the use of the disconnector.

[0073] Figure 5 A schematic diagram of the structure of the transmission assembly provided in the embodiment of the present application from another perspective. The moving contact assembly 500 may include multiple moving contact groups, and the connecting rod assembly 300 may also include multiple connecting rod groups. The embodiment of the present application only takes three moving contact groups and two connecting rod groups as an example, and the specific examples are as follows:

[0074] like Figure 2 , Figure 3 as well as Figure 5As shown, the moving contact assembly 500 includes a first moving contact group 510, a second moving contact group 520 and a third moving contact group 530 arranged at intervals, and the connecting rod assembly 300 includes a first connecting rod group 340 and a second connecting rod group 350 arranged at intervals. The first connecting rod group 340 is located between the first moving contact group 510 and the second moving contact group 520, and the first connecting rod group 340 is rotatably connected to the first moving contact group 510 and / or the second moving contact group 520. The second connecting rod group 350 is located between the second moving contact group 520 and the third moving contact group 530, and the second connecting rod group 350 is rotatably connected to the second moving contact group 520 and / or the third moving contact group 530. The energy storage member 400 is located between the first connecting rod group 340 and the second connecting rod group 350.

[0075] The first moving contact group 510, the second moving contact group 520 and the third moving contact group 530 are fixedly connected via a transmission shaft. When the first moving contact group 510 is in motion, the second moving contact group 520 and the third moving contact group 530 are in motion at the same time, or, when the second moving contact group 520 is in motion, the first moving contact group 510 and the third moving contact group 530 are in motion at the same time, or, when the third moving contact group 530 is in motion, the first moving contact group 510 and the second moving contact group 520 are in motion at the same time.

[0076] The first connecting rod group 340 and the second connecting rod group 350 are symmetrically arranged. The first connecting rod group 340 can be rotatably connected to the first moving contact group 510 and the second moving contact group 520 at the same time, and the first connecting rod group 340 can also be rotatably connected to the first moving contact group 510 or the second moving contact group 520 alone. The second connecting rod group 350 can be rotatably connected to the second moving contact group 520 and the third moving contact group 530 at the same time, and the second connecting rod group 350 can also be rotatably connected to the second moving contact group 520 or the third moving contact group 530 alone.

[0077] The energy storage member 400 is disposed between the first connecting rod group 340 and the second connecting rod group 350. The first connecting rod group 340 and the second connecting rod group 350 can be symmetrically disposed with the energy storage member 400 as the symmetry axis. In this way, when the energy storage member 400 drives the connecting rod assembly 300 to move, the stability of the movement of the connecting rod assembly 300 can be increased.

[0078] Through the above arrangement, the connecting rod assembly 300 is arranged as the first connecting rod assembly 340 and the second connecting rod assembly 350, so that the first connecting rod assembly 340 and the second connecting rod assembly 350 are located between the first moving contact assembly 510, the second moving contact assembly 520 and the third moving contact assembly 530, which reduces the difficulty of the connecting rod assembly 300 driving the moving contact assembly 500 to move, and the plurality of connecting rod assemblies are respectively matched with the moving contact assemblies, which can make the operation of the moving contact assembly 500 smoother. The energy storage member 400 is arranged between the first connecting rod assembly 340 and the second connecting rod assembly 350, so that the energy storage member 400 can not only drive the first connecting rod assembly 340 and the second connecting rod assembly 350 to move at the same time, but also increase the stability of the energy storage member 400 driving the connecting rod assembly 300 to move.

[0079] Figure 6 A schematic diagram of the structure of the bracket provided in an embodiment of the present application at a certain viewing angle. Figure 7 This is a schematic diagram of the structure of the bracket provided in the embodiment of the present application from another perspective. Figures 5 to 7 As shown, the bracket 100 includes a first support plate 110 and a second support plate 120 arranged at intervals. The first connecting rod group 340 includes a first connecting rod 341 and a second connecting rod 342, and the second connecting rod group 350 includes a third connecting rod 351 and a fourth connecting rod 352. The transmission mechanism also includes a first shaft 600, one end of the first shaft 600 passes through the first connecting rod 341 and the second connecting rod 342, and is movably connected to the first support plate 110, and the other end of the first shaft 600 passes through the third connecting rod 351 and the fourth connecting rod 352, and is movably connected to the second support plate 120. The second end 420 of the energy storage member is fixedly connected to the first shaft 600.

[0080] The first support plate 110 may be plate-shaped, and the second support plate 120 may also be plate-shaped. The first support plate 110 and the second support plate 120 may be symmetrically arranged.

[0081] The first connecting rod 341, the second connecting rod 342, the third connecting rod 351 and the fourth connecting rod 352 can all be plate-shaped or cylindrical. One end of the first connecting rod 341 can be rotatably connected to one end of the second connecting rod 342, and one end of the third connecting rod 351 can be rotatably connected to one end of the fourth connecting rod 352.

[0082] The first shaft 600 may be a cylindrical structure. One end of the first shaft 600 may pass through the connection between the first connecting rod 341 and the second connecting rod 342 and be movably connected to the first support plate 110, and the other end of the first shaft 600 may pass through the connection between the third connecting rod 351 and the fourth connecting rod 352 and be movably connected to the second support plate 120.

[0083] The first shaft 600 may be provided with a mounting portion, which may be disposed in the middle of the first shaft 600 , and the second end 420 of the energy storage member may be fixedly connected to the mounting portion disposed on the first shaft 600 , so that the stability of the energy storage member 400 when driving the connecting rod assembly 300 to move may be increased.

[0084] Through the above arrangement, the first connecting rod 341 is movably connected to the second connecting rod 342, the third connecting rod 351 is movably connected to the fourth connecting rod 352, and the two ends of the first shaft 600 pass through the first connecting rod 341, the second connecting rod 342, the third connecting rod 351 and the fourth connecting rod 352 respectively, and then are movably connected to the bracket 100. In this way, the stability of the connecting rod assembly 300 can be increased, and the probability of the components in the connecting rod assembly 300 being offset during the disconnection or closing process of the disconnecting switch is reduced. The second end 420 of the energy storage member is fixedly connected to the first shaft 600, so that the first connecting rod group 340 and the second connecting rod group 350 can move synchronously, thereby increasing the stability when the disconnecting or closing of the disconnecting switch.

[0085] Please continue to refer to Figures 5 to 7 As shown, the first support plate 110 is provided with a first limiting groove 111, and the second support plate 120 is provided with a second limiting groove 121. One end of the first shaft 600 is located in the first limiting groove 111 and can move in the first limiting groove 111, and the other end of the first shaft 600 is located in the second limiting groove 121 and can move in the second limiting groove 121.

[0086] The first limiting groove 111 may be an arc groove, or a square groove. The first limiting groove 111 may be integrally formed with the first limiting plate when the first support plate 110 is formed, or the first limiting groove 111 may be provided on the first support plate 110 by cutting or carving after the first limiting plate is formed.

[0087] Similarly, the second limiting groove 121 can be an arc groove, or a square groove. The second limiting groove 121 can be integrally formed with the second limiting plate when the second support plate 120 is formed, or the second limiting groove 121 can be set on the second support plate 120 by cutting or carving after the second limiting plate is formed.

[0088] It should be noted that the first limiting groove 111 should be the same size and shape as the second limiting groove 121 and be relative in position, so that the first shaft 600 can run smoothly in the first limiting groove 111 and the second limiting groove 121. In this way, the probability of affecting the movement of the first shaft 600 and the operation of the connecting rod assembly 300 due to the different sizes or shapes and non-relative positions of the first limiting groove 111 and the second limiting groove 121 can be reduced.

[0089] When the isolating switch is in the closed state, the two ends of the first shaft 600 respectively abut against the groove walls on one side of the first limit groove 111 and the second limit groove 121. In the process of switching the isolating switch from the closed state to the open state, the first shaft 600 moves along the first limit groove 111 and the second limit groove 121. When the isolating switch is in the open state, the two ends of the first shaft 600 respectively abut against the groove walls on the other side of the first limit groove 111 and the second limit groove 121.

[0090] The process of converting the isolating switch from the open state to the closed state can refer to the above-mentioned process of converting the isolating switch from the closed state to the open state, which will not be repeated here.

[0091] Through the above-mentioned arrangement, the first limiting groove 111 and the second limiting groove 121 are respectively arranged on the first support plate 110 and the second support plate 120, so that the two ends of the first shaft 600 are respectively placed in the first limiting groove 111 and the second limiting groove 121, not only can the first limiting groove 111 and the second limiting groove 121 be used to limit the movement of the first shaft 600, thereby reducing the probability of excessive movement of the connecting rod assembly 300 due to excessive movement of the first shaft 600 due to the lack of limiting arrangement, but also the arrangement of the first limiting groove 111 and the second limiting groove 121 can also guide the movement of the first shaft 600, thereby guiding the movement of the connecting rod assembly 300.

[0092] In one possible design, Figures 4 to 7 As shown, the bracket 100 is provided with a first limit member 130 and a second limit member 140 , and the swing lever 200 swings between the first limit member 130 and the second limit member 140 .

[0093] The first stopper 130 and the second stopper 140 may be protruding structures provided on the bracket 100. The first stopper 130 and the second stopper 140 may be cylindrical, or prism-shaped. The first stopper 130 and the second stopper 140 may be integrally formed with the bracket 100, or the first stopper 130 and the second stopper 140 may be separately formed with the bracket 100 and then assembled.

[0094] One end of the swing lever 200 rotatably connected to the bracket 100 is located between the first limiting member 130 and the second limiting member 140 .

[0095] Through the above-mentioned arrangement, a first limit member 130 and a second limit member 140 are arranged on the bracket 100, and part of the swing lever 200 is placed between the first limit member 130 and the second limit member 140, so that the swing amplitude of the swing lever 200 can be limited, thereby reducing the probability of problems in the operation of the connecting rod assembly 300 caused by excessive swing amplitude of the swing lever 200, and increasing the reliability of the disconnection or closing of the isolating switch.

[0096] Figure 8 A schematic diagram of the assembly structure of the handle assembly and the conversion member provided in an embodiment of the present application. Fig. 9 A schematic diagram of the structure of the handle assembly provided in an embodiment of the present application. Fig.10 A schematic diagram of the structure of the conversion element provided in an embodiment of the present application. Fig.11 A partial structural assembly view of a transmission component provided in an embodiment of the present application. Fig.12 A schematic diagram of the internal structure of the isolating switch provided in an embodiment of the present application.

[0097] like Figures 8 to 12 As shown, the transmission mechanism also includes a handle assembly 700 and a conversion member 800. The handle assembly 700 is provided with a push portion 710 toward the conversion member 800, and the first end 810 of the conversion member is provided with a waist-shaped groove 811, and the push portion 710 is located in the waist-shaped groove 811. When the push portion 710 rotates with the handle assembly 700, it can push the waist-shaped groove 811, so that the conversion member 800 swings around the second end 820 of the conversion member. The conversion member 800 is also provided with a mounting groove 830, and the end of the swing lever 200 is located in the mounting groove 830. When the conversion member 800 swings, the mounting groove 830 can push the swing lever 200, so that the swing lever 200 swings with the conversion member 800.

[0098] The handle assembly 700 may be cylindrical or prismatic. The handle assembly 700 is provided with a mounting hole, and the mounting hole is used to connect with an external driving member. The shape and size of the external driving member can be arbitrarily selected, and it is only necessary to set a connecting member matching the mounting hole to connect with the handle assembly 700. The push portion 710 is a protruding structure provided on the handle assembly 700, and the push portion 710 may be cylindrical or prismatic. The push portion 710 may be integrally formed with the handle assembly 700 when the handle assembly 700 is formed, and the push portion 710 may also be separately formed with the handle assembly 700 and then assembled.

[0099] The conversion member 800 is used to convert the rotation process of the handle assembly 700 into the swing process of the swing lever 200. The conversion member 800 can be a plate-shaped structure. The first end 810 of the conversion member is provided with a waist-shaped groove 811, and the size of the waist-shaped groove 811 should be slightly larger than the size of the push portion 710, so that the push portion 710 can be placed in the waist-shaped groove 811. The second end 820 of the conversion member is rotatably connected to the housing 900 of the disconnector. The mounting groove 830 is a through groove structure provided on the conversion member 800, and the end of the swing lever 200 is placed in the mounting groove 830.

[0100] When the handle assembly 700 is twisted, the handle assembly 700 rotates, and the handle assembly 700 drives the push portion 710 to rotate. The push portion 710 drives the first end 810 of the conversion member to swing with the second end 820 of the conversion member as the center. During the swinging of the conversion member 800, the end of the swing lever 200 placed in the installation groove 830 swings at the same time, thereby causing the swing lever 200 to swing.

[0101] Through the above-mentioned arrangement, the handle assembly 700 and the conversion member 800 are arranged in the transmission mechanism, which can not only simplify the operation of the transmission mechanism, but also convert the rotation process of the handle assembly 700 into the swing process of the swing lever 200, so that the swing lever 200 drives the connecting rod assembly 300 to operate. On the basis of not changing the common operation method of the isolating switch, it is ensured that the connecting rod assembly 300 can operate normally.

[0102] Fig.13 This is a schematic diagram of the structure of the extension arm provided in the embodiment of the present application. Fig. 9 as well as Fig.13 As shown, the handle assembly 700 includes a rotating handle 720 and an extension arm 730 , one end of the extension arm 730 is connected to the rotating handle 720 , and the push portion 710 is disposed at the other end of the extension arm 730 opposite to the waist-shaped groove 811 .

[0103] The rotating handle 720 may be cylindrical, and the handle assembly 700 may also be prismatic. A mounting hole for connecting with an external driving member is provided on the rotating handle 720 .

[0104] The extension part may be a plate-like structure, or a column-like structure. The extension arm 730 may be integrally formed with the rotating handle 720, or the extension arm 730 may be separately formed with the rotating handle 720 and then assembled.

[0105] Through the above-mentioned arrangement, the handle assembly 700 is arranged in the form of a combination of a rotating handle 720 and an extension arm 730, which increases the flexibility of the assembly of the handle assembly 700. It is no longer necessary to select a handle assembly 700 that matches the size of the conversion member 800 according to the size of the conversion member. It is only necessary to make one end of the extension arm 730 that installs the push portion 710 correspond to the position of the waist-shaped groove 811 set at the first end 810 of the conversion member.

[0106] like Fig.10 As shown, the transmission mechanism further includes a cushion block 840 , which is connected to the groove wall of the mounting groove 830 , and the end of the swing lever 200 abuts against the cushion block 840 in the mounting groove 830 .

[0107] The pad 840 can be made of rubber material, or plastic material. The transmission mechanism can be provided with two pads 840, and the two pads 840 can be connected to the groove wall of the installation groove 830, and the two pads 840 can be arranged correspondingly. The opposite surfaces of the two pads 840 can be provided with arc chamfers, and the opposite surfaces of the two pads 840 can also be provided with sloped chamfers.

[0108] The end of the swing lever 200 may abut against the cushion block 840 in the installation groove 830 , and the end of the swing lever 200 may also have a certain distance from the cushion block 840 in the installation groove 830 .

[0109] Since the conversion member 800 and the swing lever 200 are usually made of metal materials, when the conversion member 800 drives the swing lever 200 to swing, the conversion member 800 is easy to collide with the swing lever 200, thereby reducing the service life of the transmission mechanism. Based on this, the present application sets a cushion block 840 in the installation groove 830, and uses the cushion block 840 to form a buffer between the conversion member 800 and the swing lever 200. In this way, when the conversion member 800 drives the swing lever 200 to swing, the probability of the conversion member 800 and the swing lever 200 colliding can be reduced, thereby increasing the service life of the transmission mechanism.

[0110] Fig.14 This is a schematic diagram of the internal structure of the isolating switch provided in the embodiment of the present application. Figure 1 , Figure 2 as well as Fig.14 As shown, the present application also provides an isolating switch, including a housing 900, a moving contact assembly 500, a stationary contact and a transmission mechanism. The moving contact assembly 500, the stationary contact and the transmission mechanism are all arranged in the housing 900, and the moving contact assembly 500 cooperates with the stationary contact.

[0111] Through the above-mentioned arrangement, the present application utilizes the transmission mechanism to drive the moving contact assembly 500 to move, thereby contacting or separating with the static contact, and can realize the closing or opening of the rotary switch. Compared with the traditional rotary switch, the present application arranges the transmission mechanism in the form of a connecting rod assembly 300, and utilizes the energy storage component 400 to drive the connecting rod assembly 300 to move, thereby driving the moving contact assembly 500 to move, so that the cooperation between the transmission mechanism and the moving contact assembly 500 can be smoother. In addition, the arrangement of the energy storage component 400 not only improves the sensitivity of the isolating switch when it is closed or opened, but also reduces the probability of the transmission mechanism not being driven in place, resulting in the inability to open or close the contact assembly, thereby increasing the stability of the use of the isolating switch.

[0112] Fig.15 This is a partial structural assembly view of the connecting rod assembly and the moving contact assembly provided in the embodiment of the present application. Figure 2 , Figure 3 as well as Fig.15 As shown, the moving contact assembly 500 is disc-shaped, and the second portion 320 of the connecting rod assembly 300 is connected to a non-center portion of the moving contact assembly 500 .

[0113] The moving contact assembly 500 is provided with two moving contacts on the edge of the disc, and the two moving contacts are arranged opposite to each other. Correspondingly, the isolating switch is provided with two stationary contacts, and the two stationary contacts are respectively arranged on both sides of the moving contact assembly 500, and the two stationary contacts are arranged correspondingly. When the disc rotates, the two moving contacts can contact or separate with the two stationary contacts respectively.

[0114] The non-center portion of the moving contact assembly 500 is rotatably connected to the second portion 320 of the connecting rod assembly 300. When the connecting rod assembly 300 is moved, the moving contact assembly 500 can be driven to rotate.

[0115] Through the above arrangement, the disc-shaped moving contact assembly 500 is more stable than the traditional moving contact, and the second portion 320 of the connecting rod assembly 300 is connected to the non-center portion of the moving contact assembly 500. When the moving contact assembly 500 is actuated, the disc-shaped moving contact assembly 500 can be driven to rotate, so that the moving contact and the static contact are in contact or separated. This arrangement ensures the normal operation of the moving contact assembly 500 and increases the reliability of the isolating switch.

Claims

1. A transmission mechanism, applied to an isolating switch, the isolating switch comprising a moving contact assembly, characterized in that: The transmission mechanism comprises: Bracket; A swing lever, rotatably connected to the bracket; A connecting rod assembly, wherein a first portion of the connecting rod assembly is rotatably connected to the bracket, and a second portion of the connecting rod assembly is used to connect to the moving contact assembly; An energy storage member, wherein a first end of the energy storage member is fixedly connected to the swing lever, and a second end of the energy storage member is fixedly connected to a third portion of the connecting rod assembly; The energy storage component is located on the first side of the connecting rod assembly, and when the swing lever swings relative to the bracket, the energy storage component swings with the swing lever and stores energy; when the energy storage component swings from the first side of the connecting rod assembly to the second side of the connecting rod assembly, the energy storage component releases energy and drives the connecting rod assembly to move, so that the third part drives the moving contact assembly to rotate.

2. The transmission mechanism according to claim 1, characterized in that: The moving contact assembly comprises a first moving contact group, a second moving contact group and a third moving contact group which are arranged at intervals, and the connecting rod assembly comprises a first connecting rod group and a second connecting rod group which are arranged at intervals; The first connecting rod group is located between the first moving contact group and the second moving contact group, and the first connecting rod group is rotatably connected to the first moving contact group and / or the second moving contact group; The second connecting rod group is located between the second moving contact group and the third moving contact group, and the second connecting rod group is rotatably connected to the second moving contact group and / or the third moving contact group; The energy storage member is located between the first connecting rod group and the second connecting rod group.

3. The transmission mechanism according to claim 2, characterized in that: The bracket includes a first support plate and a second support plate arranged at intervals; the first connecting rod group includes a first connecting rod and a second connecting rod, and the second connecting rod group includes a third connecting rod and a fourth connecting rod; The transmission mechanism further includes a first shaft, one end of which passes through the first connecting rod and the second connecting rod and is movably connected to the first supporting plate, and the other end of the first shaft passes through the third connecting rod and the fourth connecting rod and is movably connected to the second supporting plate; The second end of the energy storage member is fixedly connected to the first shaft.

4. The transmission mechanism according to claim 3, characterized in that: The first support plate is provided with a first limiting groove, and the second support plate is provided with a second limiting groove; One end of the first shaft is located in the first limiting groove and can move in the first limiting groove, and the other end of the first shaft is located in the second limiting groove and can move in the second limiting groove.

5. The transmission mechanism according to claim 3, characterized in that: The transmission mechanism also includes a handle assembly and a conversion member; The handle assembly is provided with a push portion toward the conversion member, a waist-shaped groove is provided at the first end of the conversion member, and the push portion is located in the waist-shaped groove; when the push portion rotates with the handle assembly, it can push the waist-shaped groove, so that the conversion member swings around the second end of the conversion member; The conversion member is also provided with a mounting groove, in which the end of the swing lever is located; when the conversion member swings, the mounting groove can push the swing lever so that the swing lever swings with the conversion member.

6. The transmission mechanism according to claim 5, characterized in that: The handle assembly comprises a rotating handle and an extension arm, one end of the extension arm is connected to the rotating handle, and the push portion is arranged at a position where the other end of the extension arm is opposite to the waist-shaped groove.

7. The transmission mechanism according to claim 5, characterized in that: The transmission mechanism further comprises a cushion block, which is connected to a groove wall of the installation groove, and an end portion of the swing lever abuts against the cushion block in the installation groove.

8. The transmission mechanism according to any one of claims 1 to 7, characterized in that: The bracket is provided with a first limiting member and a second limiting member, and the swing lever swings between the first limiting member and the second limiting member.

9. An isolating switch, characterized in that: It comprises a housing, a moving contact assembly, a stationary contact and a transmission mechanism as claimed in any one of claims 1 to 8; The moving contact assembly, the stationary contact and the transmission mechanism are all arranged in the housing, and the moving contact assembly cooperates with the stationary contact.

10. The isolating switch according to claim 9, characterized in that: The moving contact assembly is disc-shaped, and the second portion of the connecting rod assembly is connected to a non-center portion of the moving contact assembly.

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