Isolating switch operating mechanism

Abstract

The utility model relates to an isolating switch operating mechanism, which comprises a mechanism frame, a main shaft and two groups of operating shaft assemblies, each operating shaft assembly comprises an operating shaft, a rotating plate group, a driving plate, a limiting shaft sleeve and an opening and closing driving plate, and two groups of limiting plate assemblies matched with the two opening and closing driving plates of the two groups of operating shaft assemblies are respectively arranged on the mechanism frame. An energy storage spring assembly is arranged between the rotating plate sets of the two operation shaft assemblies, a main shaft rotating plate matched with the two opening and closing driving plates of the two operation shaft assemblies is arranged on the main shaft, and an isolation roller and a grounding roller matched with the two opening and closing driving plates are arranged on the main shaft rotating plate. And the two opening and closing driving plates are respectively provided with shifting grooves for shifting the isolation roller and the grounding roller. The utility model has the advantages of simple structure, stable and reliable performance, reliable interlocking, fast opening and closing speed, and convenient installation.

Description

Technical Field

[0001] The utility model relates to an isolating switch, in particular to an isolating switch operating mechanism. Background Art

[0002] At present, many large-scale power consumption sites have been using ring network cabinets on a large scale; the ring network cabinet has a simple structure, safe and reliable operation, low maintenance frequency and low operating costs. Compared with traditional switch cabinets, the advantages are very prominent. In the technology of ring network cabinets, isolating switches are widely used. As a circuit switch in the ring network cabinet, the isolating switch not only plays the role of an ordinary switch, but also ensures the reliable grounding of the safety break and the lower end of the isolation, which absolutely guarantees the safety of circuit maintenance and repair personnel. It is one of the very important components in the ring network cabinet. The existing isolating switch operating mechanism has a complex structural design, many parts, high cost, high mechanical failure rate, and easily leads to unreliable interlocking between the two sets of operating shaft components (isolation operation and grounding operation). In addition, the isolating switch operating mechanism also has the defects of complex structure, slow opening and closing speed, and inconvenient installation. Summary of the invention

[0003] The utility model aims to overcome the defects of the prior art and provide an isolating switch operating mechanism with simple structure, stable and reliable performance, reliable interlocking, fast opening and closing speed and convenient installation.

[0004] To achieve the above-mentioned purpose, the utility model adopts an isolating switch operating mechanism, including a mechanism frame, a main shaft rotatably arranged on the mechanism frame, and two groups of operating shaft assemblies respectively arranged on the mechanism frame at both sides of the corresponding main shaft, the operating shaft assembly including an operating shaft rotatably arranged on the mechanism frame, a rotating plate assembly arranged on the operating shaft, a driving plate linked to the operating shaft and used to drive the rotating plate assembly to move, a limiting shaft sleeve arranged on the operating shaft, and a separation and combination driving plate linked to the limiting shaft sleeve, the mechanism frame is respectively provided with two groups of limiting plate assemblies matched with the two separation and combination driving plates of the two groups of operating shaft assemblies, an energy storage spring assembly is arranged between the rotating plate groups of the two groups of operating shaft assemblies, the main shaft is provided with a main shaft rotating plate matched with the two separation and combination driving plates of the two groups of operating shaft assemblies, the main shaft rotating plate is respectively provided with isolation rollers and grounding rollers matched with the two separation and combination driving plates, and the two separation and combination driving plates are respectively provided with toggle grooves for toggling the isolation rollers and the grounding rollers.

[0005] The beneficial effects of the above structure are: the main shaft rotating plate cooperates with the two opening and closing drive plates of the two groups of operating shaft assemblies through the isolation roller and the grounding roller, so as to realize the interlocking of the two groups of operating shaft assemblies (isolation operation, grounding operation), and avoid the two groups of operating shaft assemblies from performing the closing action (isolation, grounding) at the same time. The structure is simple in design and the interlocking is more reliable. An energy storage spring assembly is arranged between the two groups of rotating plate groups of the two groups of operating shaft assemblies. The energy storage spring assembly can accelerate the speed of the operating shaft assembly to perform the opening and closing, and the opening and closing speed is faster. Therefore, the isolating switch operating mechanism has the advantages of simple structure, stable and reliable performance, reliable interlocking, and fast opening and closing speed.

[0006] In particular, the limit plate assembly includes an opening limit plate rotatably arranged on the mechanism frame at one side of the corresponding operating shaft, a first torsion spring arranged between the opening limit plate and the mechanism frame, a closing limit plate rotatably arranged on the mechanism frame at the other side of the corresponding operating shaft, and a second torsion spring arranged between the closing limit plate and the mechanism frame. The limit shaft sleeve is provided with a limit groove matching with the opening limit plate and one end of the closing limit plate. The other end of the opening limit plate is provided with a limit roller matching with the main shaft rotating plate. The main shaft rotating plate is provided with a locking groove matching with the limit roller. When the main shaft rotating plate is rotated to the opening position, the limit roller is engaged in the locking groove and constitutes a limiting cooperation between the main shaft rotating plate and the limit roller. The other end of the closing limit plate is vertically bent to form a limiting portion. When the main shaft rotating plate is rotated to the closing position, the limit portion is engaged in the locking groove and constitutes a limiting cooperation between the main shaft rotating plate and the closing limit plate. When the operating shaft rotates to the opening position, one end of the opening limit plate is engaged in the limit groove, and the limit roller at the other end of the opening limit plate is engaged in the locking groove. The opening limit plate can limit the main shaft rotating plate to the opening position, thereby realizing the opening locking of the isolating switch operating mechanism; when the operating shaft rotates to the closing position, one end of the closing limit plate is engaged in the limit groove, and the limit part at the other end of the closing limit plate is engaged in the locking groove. The closing limit plate can limit the main shaft rotating plate to the closing position, thereby realizing the closing locking of the isolating switch operating mechanism; the limit plate assembly can ensure that the main shaft rotating plate can reliably perform the opening and closing actions, can avoid bouncing, and is beneficial to improving the working reliability of the isolating switch operating mechanism.

[0007] In particular, the energy storage spring assembly includes a guide shaft, a positioning shaft, and an energy storage spring sleeved on the guide shaft. The guide shaft is interlockedly arranged on the rotating plate assembly of one set of operating shaft assemblies, and the positioning shaft is interlockedly arranged on the rotating plate assembly of the other set of operating shaft assemblies. A guide hole is arranged on the positioning shaft, and one end of the guide shaft is inserted into the guide hole. The two ends of the energy storage spring are respectively in contact with the guide shaft and the positioning shaft. The energy storage spring assembly adopts a modular structural design, so as to facilitate the assembly of the energy storage spring assembly and the two sets of rotating plate assemblies, and the assembly efficiency is higher. The energy storage spring assembly can accelerate the opening and closing of the switch, which is conducive to accelerating the opening and closing speed of the disconnector operating mechanism.

[0008] In particular, the mechanism frame includes a front plate, a rear plate, and a mounting base plate, a plurality of support columns are respectively arranged between one side of the rear plate and the front plate, a plurality of pillars are respectively arranged between the other side of the rear plate and the mounting base plate, the two groups of limit plate assemblies are respectively arranged on one side of the rear plate, and a clearance hole is arranged on the mounting base plate corresponding to the main axis. The mounting base plate is arranged on the mechanism frame, so as to facilitate the installation of the isolating switch operating mechanism, and the installation is more convenient. The plurality of support columns and the plurality of pillars can enhance the overall strength of the mechanism frame, which is conducive to improving the working reliability of the isolating switch.

[0009] In particular, a travel switch assembly is provided on the front plate corresponding to the main shaft, and the travel switch assembly includes a fixed plate provided on the front plate, a cam provided on the main shaft in linkage, and two travel switches provided on the fixed plate at both sides of the corresponding cam, and the cam moves with the main shaft and triggers the two travel switches, and realizes the connection or disconnection of the two travel switches. The travel switch assembly can monitor the position of the main shaft, and can realize the working position monitoring of the isolating switch operating mechanism, so as to improve the working reliability of the isolating switch operating mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a stereogram of an embodiment of the utility model.

[0011] Figure 2 This is an exploded view of an embodiment of the utility model.

[0012] Figure 3 This is a diagram of the open and locked state of an embodiment of the utility model.

[0013] Figure 4 This is a diagram of the closing and locking state of an embodiment of the utility model.

[0014] Figure 5 It is an assembly diagram of two sets of operating shaft components according to an embodiment of the utility model.

[0015] Figure 6 It is an assembly diagram of the main shaft rotating plate and two separation and combination driving plates according to an embodiment of the utility model. DETAILED DESCRIPTION

[0016] like Figures 1 to 6 As shown, the embodiment of the utility model is an isolating switch operating mechanism, including a mechanism frame 10, a main shaft 11 rotatably arranged on the mechanism frame 10, and two groups of operating shaft assemblies 20 respectively arranged on the mechanism frame 10 at both sides of the corresponding main shaft 11. The operating shaft assembly 20 includes an operating shaft 21 rotatably arranged on the mechanism frame 10, a rotating plate assembly 22 arranged on the operating shaft 21, a driving plate 23 linked to the operating shaft 21 and used to drive the rotating plate assembly 22 to move, a limiting shaft sleeve 24 arranged on the operating shaft 21, and a separation and combination driving plate 25 linked to the limiting shaft sleeve 24. The mechanism frame 10 Two groups of limit plate assemblies 30 are respectively provided to cooperate with the two separation and combination drive plates 25 of the two groups of operating shaft assemblies 20, and an energy storage spring assembly 40 is provided between the rotating plate groups 22 of the two groups of operating shaft assemblies 20. The main shaft 11 is provided with a main shaft rotating plate 12 that cooperates with the two separation and combination drive plates 25 of the two groups of operating shaft assemblies 20. The main shaft rotating plate 12 is respectively provided with an isolation roller 121 and a grounding roller 122 that cooperate with the two separation and combination drive plates 25, and the two separation and combination drive plates 25 are respectively provided with a toggle groove 251 for toggling the isolation roller 121 and the grounding roller 122.

[0017] like Figure 2 , 34, the limit plate assembly 30 includes an opening limit plate 31 rotatably arranged on the mechanism frame 10 at one side of the corresponding operating shaft 21, a first torsion spring 32 arranged between the opening limit plate 31 and the mechanism frame 10, a closing limit plate 33 rotatably arranged on the mechanism frame 10 at the other side of the corresponding operating shaft 21, and a second torsion spring 34 arranged between the closing limit plate 33 and the mechanism frame 10. The limit sleeve 24 is provided with a limit groove 241 that matches one end of the opening limit plate 31 and the closing limit plate 33. The other end of the opening limit plate 31 is provided with a limit groove 241 that matches one end of the main shaft rotating plate 12. The main shaft rotating plate 12 is provided with a locking groove 123 which cooperates with the limiting roller 311. When the main shaft rotating plate 12 is rotated to the opening position, the limiting roller 311 is engaged in the locking groove 123, and constitutes the limiting cooperation between the main shaft rotating plate 12 and the limiting roller 311. The other end of the closing limiting plate 33 is vertically bent and forms a limiting portion 331. When the main shaft rotating plate 12 is rotated to the closing position, the limiting portion 331 is engaged in the locking groove 123, and constitutes the limiting cooperation between the main shaft rotating plate 12 and the closing limiting plate 33. When the operating shaft rotates to the opening position, one end of the opening limit plate is engaged in the limit groove, and the limit roller at the other end of the opening limit plate is engaged in the locking groove. The opening limit plate can limit the main shaft rotating plate to the opening position, thereby realizing the opening locking of the isolating switch operating mechanism; when the operating shaft rotates to the closing position, one end of the closing limit plate is engaged in the limit groove, and the limit part at the other end of the closing limit plate is engaged in the locking groove. The closing limit plate can limit the main shaft rotating plate to the closing position, thereby realizing the closing locking of the isolating switch operating mechanism; the limit plate assembly can ensure that the main shaft rotating plate can reliably perform the opening and closing actions, can avoid bouncing, and is beneficial to improving the working reliability of the isolating switch operating mechanism.

[0018] like Figure 2 and 5 As shown, the energy storage spring assembly 40 includes a guide shaft 41, a positioning shaft 42, and an energy storage spring 43 sleeved on the guide shaft 41. The guide shaft 41 is linked to be arranged on the rotating plate group 22 of one group of operating shaft assemblies 20, and the positioning shaft 42 is linked to be arranged on the rotating plate group 22 of another group of operating shaft assemblies 20. The positioning shaft 42 is provided with a guide hole 421, and one end of the guide shaft 41 is inserted into the guide hole 421. The two ends of the energy storage spring 43 are respectively in contact with the guide shaft 41 and the positioning shaft 42. The energy storage spring assembly adopts a modular structure design, so as to facilitate the assembly of the energy storage spring assembly and the two groups of rotating plate groups, and the assembly efficiency is higher. The energy storage spring assembly can accelerate the opening and closing of the switch, which is conducive to accelerating the opening and closing speed of the disconnector operating mechanism.

[0019] like Figure 1 , 2As shown, the mechanism frame 10 comprises a front plate 101, a rear plate 102, and a mounting base plate 103. A plurality of support columns 104 are respectively arranged between one side of the rear plate 102 and the front plate 101, and a plurality of pillars 105 are respectively arranged between the other side of the rear plate 102 and the mounting base plate 103. The two groups of limit plate assemblies 30 are respectively arranged on one side of the rear plate 102, and a clearance hole 1031 is arranged on the mounting base plate 103 at a position corresponding to the main shaft 11. The mechanism frame is provided with a mounting base plate, so as to facilitate the installation of the isolating switch operating mechanism, and the installation is more convenient. The plurality of support columns and pillars can enhance the overall strength of the mechanism frame, which is conducive to improving the working reliability of the isolating switch. A travel switch assembly 50 is provided on the front plate 101 at a position corresponding to the main shaft 11. The travel switch assembly 50 includes a fixed plate 51 provided on the front plate 101, a cam 13 provided on the main shaft 11 in linkage, and two travel switches 52 provided on the fixed plate 51 at both sides of the corresponding cam 13. The cam 13 moves with the main shaft 11 and triggers the two travel switches 53, and realizes the connection or disconnection of the two travel switches 52. The travel switch assembly can monitor the position of the main shaft, and can realize the working position monitoring of the isolating switch operating mechanism, so as to improve the working reliability of the isolating switch operating mechanism.

[0020] The main shaft rotating plate cooperates with the two opening and closing drive plates of the two operating shaft assemblies through the isolation roller and the grounding roller, so as to realize the interlocking of the two operating shaft assemblies (isolation operation, grounding operation), and avoid the two operating shaft assemblies from performing the closing action (isolation, grounding) at the same time. The structure is simple in design and the interlocking is more reliable. An energy storage spring assembly is arranged between the two rotating plate groups of the two operating shaft assemblies, and the energy storage spring assembly can accelerate the opening and closing speed of the operating shaft assembly, and the opening and closing speed is faster. Therefore, the isolating switch operating mechanism has the advantages of simple structure, stable and reliable performance, reliable interlocking, and fast opening and closing speed.

Claims

1. An isolating switch operating mechanism, characterized in that: The invention comprises a mechanism frame, a main shaft rotatably arranged on the mechanism frame, and two groups of operating shaft assemblies respectively arranged on the mechanism frame at both sides of the corresponding main shaft, wherein the operating shaft assembly comprises an operating shaft rotatably arranged on the mechanism frame, a rotating plate assembly arranged on the operating shaft, a driving plate linked to the operating shaft and used for driving the rotating plate assembly to move, a limiting shaft sleeve arranged on the operating shaft, and a separation and combination driving plate linked to the limiting shaft sleeve, two groups of limiting plate assemblies matched with two separation and combination driving plates of the two groups of operating shaft assemblies are respectively arranged on the mechanism frame, an energy storage spring assembly is arranged between the rotating plate groups of the two groups of operating shaft assemblies, a main shaft rotating plate matched with the two separation and combination driving plates of the two groups of operating shaft assemblies is arranged on the main shaft, isolation rollers and grounding rollers matched with the two separation and combination driving plates are respectively arranged on the main shaft rotating plate, and toggling grooves for toggling the isolation rollers and grounding rollers are respectively arranged on the two separation and combination driving plates.

2. The isolating switch operating mechanism according to claim 1, characterized in that: The limit plate assembly includes an opening limit plate rotatably arranged on the mechanism frame at one side of the corresponding operating shaft, a first torsion spring arranged between the opening limit plate and the mechanism frame, a closing limit plate rotatably arranged on the mechanism frame at the other side of the corresponding operating shaft, and a second torsion spring arranged between the closing limit plate and the mechanism frame. The limit shaft sleeve is provided with a limit groove matching with the opening limit plate and one end of the closing limit plate. The other end of the opening limit plate is provided with a limit roller matching with the main shaft rotating plate. The main shaft rotating plate is provided with a locking groove matching with the limit roller. When the main shaft rotating plate is rotated to the opening position, the limit roller is engaged in the locking groove and constitutes a limiting cooperation between the main shaft rotating plate and the limit roller. The other end of the closing limit plate is vertically bent to form a limiting portion. When the main shaft rotating plate is rotated to the closing position, the limiting portion is engaged in the locking groove and constitutes a limiting cooperation between the main shaft rotating plate and the closing limit plate.

3. The isolating switch operating mechanism according to claim 1 or 2, characterized in that: The energy storage spring assembly includes a guide shaft, a positioning shaft, and an energy storage spring sleeved on the guide shaft. The guide shaft is linked to be arranged on a rotating plate assembly of one group of operating shaft assemblies, and the positioning shaft is linked to be arranged on a rotating plate assembly of another group of operating shaft assemblies. A guide hole is arranged on the positioning shaft, and one end of the guide shaft is inserted into the guide hole. The two ends of the energy storage spring respectively abut against the guide shaft and the positioning shaft.

4. The isolating switch operating mechanism according to claim 1 or 2, characterized in that: The mechanism frame includes a front plate, a rear plate, and a mounting base plate. A plurality of support columns are respectively arranged between one side of the rear plate and the front plate, and a plurality of pillars are respectively arranged between the other side of the rear plate and the mounting base plate. The two sets of limit plate assemblies are respectively arranged on one side of the rear plate, and a clearance hole is arranged on the mounting base plate corresponding to the main axis.

5. The isolating switch operating mechanism according to claim 4, characterized in that: A travel switch assembly is arranged on the front plate corresponding to the main shaft, and the travel switch assembly includes a fixed plate arranged on the front plate, a cam linked to the main shaft, and two travel switches respectively arranged on the fixed plate at both sides of the corresponding cam. The cam moves with the main shaft and triggers the two travel switches, thereby realizing the connection or disconnection of the two travel switches.

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