CN217386979U

CN217386979U - Remote tripping assembly and isolating switch

Info

Publication number: CN217386979U
Application number: CN202221112083.XU
Authority: CN
Inventors: 彭委建; 晏国云; 陈文冲
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-06
Anticipated expiration: 2032-04-29

Abstract

The application discloses a remote trip assembly and an isolation switch, and relates to the technical field of electrical appliances. The remote tripping assembly includes a housing, a tripping rod, and a tripper disposed on one side of the housing. One end of the tripping rod is rotatably connected to the housing, and the other end is used for connecting with the tripping rod. The tripping device cooperates to make the operating mechanism trip remotely, and an insulating sleeve is provided at one end of the tripping rod that is matched with the tripping device, and the insulating sleeve is wrapped around at least a partial area of the tripping rod. It can electrically isolate the remote trip side and the operation side to improve the safety in use.

Description

Remote tripping assembly and isolating switch

Technical Field

The application relates to the technical field of electric appliances, in particular to a remote tripping assembly and an isolating switch.

Background

The isolating switch electrical product has the advantages of simple structure and convenience in operation and maintenance, and the switch has very high dielectric property, protective property and reliable operation safety property by utilizing the characteristics of the shell. When the maintenance of electric circuit and its equipment is overhauled, in order to ensure the safety of maintainer and equipment, will use isolator product to cut off the power usually for the circuit or equipment that need overhaul are kept apart from electrified part, and keep effectual isolation distance.

In practical applications, in order to timely cut off a power supply through the isolating switch, the isolating switch generally has a remote tripping function, and the remote tripping device generally takes power directly from an accessed circuit and converts the voltage into a required voltage value through a transformer. However, in the using process, the voltage cannot be converted into the required voltage value due to the fault of the transformer, so that the operating handle of the isolating switch is communicated with the accessed circuit through the remote tripping assembly, and potential safety hazards are caused to operators.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a remote tripping assembly and an isolating switch, which can electrically isolate a remote tripping side and an operation side and improve the safety in use.

The embodiment of the application is realized as follows:

an aspect of the embodiment of the application provides a long-range dropout subassembly, including casing, trip bar, and set up the tripper of casing one side, the one end of trip bar with the casing rotate connect, the other end be used for with the tripper cooperation to make the long-range dropout of operating device, the trip bar with tripper complex one end is provided with insulating cover, insulating cover wrap up in at least partial region of trip bar.

Optionally, an extension spring is connected between the housing and the trip bar, and the extension spring is connected with the trip bar through the insulating sleeve.

Optionally, the extension spring includes a spring body, and pull arms disposed at two opposite ends of the spring body, and the two pull arms are identical in shape.

Optionally, the pull arm includes a connection section, a support section and an extension section, which are connected in sequence, wherein the connection section is perpendicular to the support section, the connection section is parallel to the extension section, and a bending section far away from the connection section is arranged at the end of the extension section.

Optionally, the trip bar includes a support body, the support body is rotatably connected with the housing, a first protrusion is arranged on the support body, and the first protrusion is used for abutting against the housing for limiting.

Optionally, the support body is further provided with a second protrusion, and the second protrusion is used for abutting against a lock catch piece of the operating mechanism and storing energy in the operating mechanism.

Optionally, the support body is further provided with a supporting arm, a supporting surface is formed on the supporting arm, and the supporting surface is used for being matched with the locking piece, so that the operating mechanism drives the tripping rod to reset to a state before tripping when switching-on operation is performed.

Optionally, a groove is further formed in the support body, and when an extension spring is connected between the shell and the trip bar, the extension spring can be clamped in the groove.

Optionally, a through hole is further formed in the support body, and a rotating shaft penetrates through the through hole, so that the support body is rotatably connected with the shell through the rotating shaft.

In another aspect of the embodiments of the present application, there is provided a disconnecting switch including the remote trip assembly as described in any one of the above.

The beneficial effects of the embodiment of the application include:

the embodiment of the application provides a long-range dropout subassembly and isolator through the casing to and set up the release on one side of the casing, when the release moved, the action force that receives the release of release that is connected with the casing rotation rotated the trip bar and rotates for the casing, so that operating device long-range dropout. When the tripping rod is matched with the tripper, an insulating sleeve is arranged at one end of the tripping rod matched with the tripper, and the insulating sleeve is wrapped on at least partial area of the tripping rod. The tripping rod and the tripper can be electrically isolated, and when the tripper has higher voltage due to faults, the tripping rod cannot conduct electricity to the operating mechanism. By adopting the mode, the remote tripping side and the operation side can be electrically isolated, so that the safety in use is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a remote trip assembly according to an embodiment of the present disclosure;

fig. 2 is a second schematic structural diagram of a remote trip assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of an extension spring according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a trip bar provided in an embodiment of the present application.

Icon: 100-a remote trip assembly; 105-an operating mechanism; 110-a housing; 120-a trip bar; 121-a support body; 122-an insulating sleeve; 123-a first projection; 124-a second projection; 125-a holding arm; 1252-holding surface; 126-a groove; 127-a via; 130-a release; 140-an extension spring; 142-a spring body; 144-a pull arm; 1442-a connecting segment; 1444-a sustain segment; 1446-extension; 1448-bending section; 150-rotating shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In practical applications, in order to timely cut off a power supply through the isolating switch, the isolating switch generally has a remote tripping function, and the remote tripping device generally takes power directly from an accessed circuit and converts the voltage into a required voltage value through a transformer. However, in the using process, the voltage cannot be converted into the required voltage value due to the fault of the transformer, so that the operating handle of the isolating switch is communicated with the accessed circuit through the remote tripping assembly, and potential safety hazards are caused to operators. In view of the above problems, embodiments of the present application provide the following technical solutions to overcome the above problems.

Referring to fig. 1 and 2, the present embodiment provides a remote trip assembly 100, which includes a housing 110, a trip bar 120, and a trip unit 130 disposed at one side of the housing 110, wherein one end of the trip bar 120 is rotatably connected to the housing 110, and the other end is used for cooperating with the trip unit 130 to remotely trip an operating mechanism 105, an insulating sleeve 122 is disposed at one end of the trip bar 120 cooperating with the trip unit 130, and the insulating sleeve 122 covers at least a partial region of the trip bar 120.

Specifically, the release 130 includes a magnetic flux unit and a push rod matched with the magnetic flux unit, when the magnetic flux unit is powered on, the push rod can be pushed out, and when the magnetic flux unit is powered off, the push rod can be manually pressed to reset. By rotatably connecting one end of the trip bar 120 with the housing 110 and matching the other end with the trip device 130, when the trip device 130 is actuated, the trip bar 120 can be pushed by the push rod to rotate relative to the housing 110, so that the operating mechanism 105 is remotely tripped, and the remote tripping operation is realized.

For example, when the disconnector is connected to an electrical line of 1500V, the remote trip assembly 100 of the disconnector takes power directly from the electrical line and transforms the voltage conducted to the trip unit 130 to 12V via a transformer. The trip unit 130 may be rated to have 1500V in the event of transformer failure. When the insulating sleeve 122 is disposed at the end of the trip bar 120 that is engaged with the trip unit 130, if the trip unit 130 has a high voltage, the insulating sleeve 122 is wrapped around at least a partial region of the trip bar 120, so that the trip bar 120 is electrically insulated from the trip unit 130, and the required electrical safety distance and creepage distance are satisfied, without conducting the high voltage at the trip unit 130 to the operating mechanism 105 through the trip bar 120.

It should be noted that the housing 110 in the embodiment of the present application is the housing 110 for the operating mechanism 105, in the implementation process, the disconnecting switch has a remote tripping side and an operating side, the trip device 130 is located on the remote tripping side, and a housing connected to the housing 110 is provided to enclose the trip device 130 inside, so as to prevent the trip device from being affected by the external environment. At the same time, the trip unit 130 establishes a desired connection relationship between the remote trip side and the operating side through the trip lever 120.

According to the remote trip assembly 100 provided by the embodiment of the application, through the housing 110 and the trip device 130 arranged on one side of the housing 110, when the trip device 130 is operated, the trip rod 120 which is rotatably connected with the housing 110 rotates relative to the housing 110 under the action of the trip device 130, so that the operating mechanism 105 is tripped remotely. When the trip bar 120 is matched with the tripper 130, an insulating sleeve 122 is arranged at one end of the trip bar 120 matched with the tripper 130, and the insulating sleeve 122 covers at least partial area of the trip bar 120. So that the trip bar 120 and the trip unit 130 can be electrically isolated, and when the trip unit 130 has a higher voltage due to a fault, the trip bar 120 cannot be electrically conducted to the operating mechanism 105. By adopting the mode, the remote tripping side and the operation side can be electrically isolated, so that the safety in use is improved.

As shown in fig. 1 and 2, an extension spring 140 is connected between the housing 110 and the trip bar 120, and the extension spring 140 is connected to the trip bar 120 through an insulating sleeve 122.

Specifically, the extension spring 140 is connected between the housing 110 and the trip bar 120, so that the trip bar 120 has an elastic force moving toward the trip unit 130, when the trip unit 130 is in a state before operation, the trip bar 120 can stably abut against the trip unit 130, and the trip bar 120 is prevented from shaking. When the tripper 130 is operated, the elastic force of the elastic member can be overcome to rotate the trip bar 120 relative to the housing 110, and when the tripper 130 is reset by applying the acting force to the tripper 130 through the trip bar 120, the process of resetting the tripper 130 can be more labor-saving.

As shown in fig. 3, the extension spring 140 includes a spring body 142, and pull arms 144 disposed at opposite ends of the spring body 142, the pull arms 144 being shaped identically.

Specifically, by setting the shapes of the two pull arms 144 to be the same, the two ends of the extension spring 140 do not need to be specially distinguished in the assembly process of the extension spring 140, the assembly can be directly performed without distinguishing the directions, and the improvement of the production efficiency is facilitated.

With reference to fig. 3, the pull arm 144 includes a connecting section 1442, a holding section 1444, and an extending section 1446 connected in sequence, wherein the connecting section 1442 is perpendicular to the holding section 1444, the connecting section 1442 is parallel to the extending section 1446, and a bent section 1448 far away from the connecting section 1442 is disposed at an end of the extending section 1446.

The connecting section 1442 is connected to the spring body 142, so that the spring body 142 is connected to other parts through the pull arm 144. When the two ends of the extension spring 140 are respectively matched with the shell 110 and the trip bar 120, since the slot holes formed in the trip bar 120 and the shell 110 have plane areas, the connecting section 1442 and the supporting section 1444 are vertically arranged, so that the supporting section 1444 can be better matched with the connecting position, and the stability of connection is improved. In addition, the extending section 1446 connected with the abutting section 1444 is beneficial to ensuring stable connection of two ends of the stable extension spring 140, and the problem that the connection part is loosened is avoided. Meanwhile, the bent section 1448 far away from the connecting section 1442 is arranged at the tail end of the extending section 1446, so that the phenomenon that when the pull arm 144 is matched with the trip rod 120, the matched part of the insulating sleeve 122 and the pull arm 144 is abraded, and when the tripper 130 has high voltage, point discharge is generated at the position of the pull arm 144, and the stability of matching is guaranteed.

As shown in fig. 4, the trip bar 120 includes a supporting body 121, the supporting body 121 is rotatably connected to the housing 110, a first protrusion 123 is disposed on the supporting body 121, and the first protrusion 123 is used for abutting against and limiting the position of the housing 110.

For example, the support body 121 may be provided with a through hole 127, the through hole 127 is provided with a rotating shaft 150, and the rotating shaft 150 is connected with the housing 110, so that the support body 121 is rotatably connected with the housing 110 through the rotating shaft 150. In addition, by providing the first protrusion 123 on the supporting body 121, when the supporting body 121 rotates relative to the housing 110, the supporting body 121 is prevented from rotating at an excessively large angle, so that the trip 130 is prevented from being damaged by a large force. By adopting the above mode, when the supporting body 121 rotates to a proper angle, the supporting body can be abutted and limited between the first protrusion 123 and the shell 110, which is beneficial to ensuring the stability in use.

As shown in fig. 2 and 4, the supporting body 121 is further provided with a second protrusion 124, and the second protrusion 124 is used for abutting against the locking member of the operating mechanism 105 to store energy in the operating mechanism 105.

Specifically, when the disconnector handles the closed state, in order to provide the operating mechanism 105 with the opening force, the operating mechanism 105 needs to store energy during closing so as to enable smooth remote opening. At this time, the supporting body 121 is in a state of locking the locking member under the action of the extension spring 140, and the operating mechanism 105 is in an energy storage state by abutting the locking member against the second protrusion 124. When the release 130 is actuated, the supporting body 121 is driven to rotate relative to the housing 110, and at this time, the second protrusion 124 no longer obstructs the movement of the locking member, so that the operating mechanism 105 can be released and the opening operation can be completed.

Referring to fig. 4, the supporting body 121 is further provided with a supporting arm 125, the supporting arm 125 is formed with a supporting surface 1252, and the supporting surface 1252 is used for cooperating with the locking member, so that the tripping lever 120 is driven to reset to the state before tripping when the operating mechanism 105 is switched on.

Specifically, in the process of separating and opening the brake by the operating mechanism 105, the locking member rotates synchronously with the operating handle, at this time, the locking member can abut against the abutting surface 1252, and in the process of rotating the locking member, the locking member abuts against the abutting surface 1252 and slides relatively to the abutting surface 1252, so that the support body 121 rotates relative to the housing 110. When the supporting body 121 rotates, the supporting body 121 applies an acting force to the trip unit 130 to reset the trip unit 130, so that the remote opening operation is facilitated.

Referring to fig. 4, the supporting body 121 is further provided with a groove 126, and when the extension spring 140 is connected between the casing 110 and the trip bar 120, the extension spring 140 can be clamped in the groove 126.

Specifically, by arranging the groove 126 on the support body 121, when the insulating sleeve 122 is arranged, the insulating sleeve 122 is uniformly arranged on the surface of the trip rod 120, and the arrangement of the groove 126 is not affected. By adopting the above manner, when the extension spring 140 is matched with the trip bar 120, the connection position between the extension spring 140 and the trip bar 120 can be kept relatively stable, which is beneficial to ensuring the connection stability.

The embodiment of the application also discloses an isolating switch which comprises the remote tripping assembly 100 in the embodiment. The disconnector comprises the same structure and benefits as the remote trip assembly 100 of the previous embodiment. The structure and advantages of the remote trip assembly 100 have been described in detail in the foregoing embodiments, and are not repeated herein.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A remote tripping assembly (100) is characterized by comprising a shell (110), a tripping rod (120) and a tripping device (130) arranged on one side of the shell (110), wherein one end of the tripping rod (120) is rotatably connected with the shell (110), the other end of the tripping rod is used for being matched with the tripping device (130) so as to remotely trip an operating mechanism (105), an insulating sleeve (122) is arranged at one end of the tripping rod (120) matched with the tripping device (130), and at least part of area of the tripping rod (120) is wrapped by the insulating sleeve (122).

2. The remote trip assembly (100) of claim 1 wherein an extension spring (140) is connected between said housing (110) and said trip bar (120), said extension spring (140) being connected to said trip bar (120) through said insulating sleeve (122).

3. The remote trip assembly (100) of claim 2 wherein said extension spring (140) comprises a spring body (142) and pull arms (144) disposed at opposite ends of said spring body (142), said pull arms (144) being identically shaped.

4. The remote trip assembly (100) according to claim 3, wherein the pull arm (144) comprises a connecting section (1442), a holding section (1444) and an extending section (1446) which are connected in sequence, wherein the connecting section (1442) is perpendicular to the holding section (1444), the connecting section (1442) is parallel to the extending section (1446), and the end of the extending section (1446) is provided with a bending section (1448) far away from the connecting section (1442).

5. The remote trip assembly (100) according to any one of claims 1 to 4, wherein the trip bar (120) comprises a support body (121), the support body (121) is rotatably connected with the housing (110), a first protrusion (123) is disposed on the support body (121), and the first protrusion (123) is configured to abut against and limit the housing (110).

6. The remote trip assembly (100) of claim 5, wherein said support body (121) further comprises a second protrusion (124), said second protrusion (124) is configured to abut against a latch of said operating mechanism (105) for storing energy in said operating mechanism (105).

7. The remote trip assembly (100) of claim 6, wherein the support body (121) further comprises a support arm (125), and a support surface (1252) is formed on the support arm (125), and the support surface (1252) is used for cooperating with the locking member, so that the tripping lever (120) is driven to return to a state before tripping when the operating mechanism (105) is operated to close.

8. The remote trip assembly (100) of claim 5, wherein a groove (126) is further formed in the support body (121), and when an extension spring (140) is connected between the housing (110) and the trip bar (120), the extension spring (140) can be clamped in the groove (126).

9. The remote trip assembly (100) according to claim 5, wherein a through hole (127) is further disposed on the supporting body (121), and a rotating shaft (150) is disposed through the through hole (127), so that the supporting body (121) is rotatably connected to the housing (110) through the rotating shaft (150).

10. A disconnector, characterized in that it comprises a remote trip assembly (100) according to any one of claims 1 to 9.