Isolating switch-circuit breaker operating mechanism and pole-mounted switch

Abstract

The invention relates to an operating or releasing mechanism of an electric switch, in particular to an isolating switch-circuit breaker operating mechanism and a pole-mounted switch. The disconnecting switch-circuit breaker operating mechanism comprises a front panel, a supporting plate and a rear panel which are arranged at intervals, a circuit breaker power mechanism is arranged between the front panel and the supporting plate, a disconnecting switch power mechanism is arranged between the rear panel and the supporting plate, and the circuit breaker power mechanism comprises a circuit breaker operating shaft. The disconnecting switch power mechanism comprises a disconnecting switch operating shaft, the circuit breaker operating shaft is connected with an interlocking plate through an interlocking crank arm, an output gear is installed on the disconnecting switch operating shaft, and a stop pin extending in the axial direction is arranged on the output gear. The end, away from the interlocking crank arm, of the interlocking plate avoids the moving path of the stop pin opening and closing along with the disconnecting switch, and in other states of the circuit breaker, the interlocking plate extends to the moving path of the stop pin opening and closing along with the disconnecting switch. Interlocking of the disconnecting switch and the circuit breaker is achieved, and circuit safety is guaranteed.

Description

Technical Field

[0001] The invention relates to an operating or releasing mechanism of an electric switch, in particular to an isolating switch-circuit breaker operating mechanism and a pole-mounted switch. Background Art

[0002] A pole switch is a type of switch used on a utility pole to ensure the safety of electricity use. Its main function is to isolate the high voltage of the circuit. Its main components include circuit breakers and disconnectors. The circuit breaker is used to cut off the fault current and protect the branch line. The disconnector can be used to isolate the power supply and disconnect the high-voltage maintenance equipment from the live equipment, so that there is an obvious disconnection point between them to ensure safety. The structure of the pole switch has undergone continuous evolution, and has successively gone through the stages of isolating switches being arranged outside the circuit breaker and isolating switches and circuit breakers being placed in an independent box. It has made great progress in miniaturization, stability, and reliability.

[0003] For example, a Chinese utility model patent with authorization announcement number CN201570430U and authorization announcement date September 1, 2010 discloses a structure of a pole switch in which a disconnector is arranged outside a circuit breaker. Specifically, it is an outdoor pole-mounted high-voltage vacuum circuit breaker equipped with a disconnector. The circuit breaker includes a base, and bolts are arranged on opposite sides of one end of the base. The vacuum circuit breaker is fixedly installed with the bolts and two bottom feet of the vacuum circuit breaker. In addition, an inclined surface is arranged at the other end of the base, and the three-phase static contact support insulator of the disconnector is fixedly installed on the inclined surface. The three-phase knife switch of the disconnector is installed at the incoming line end of the vacuum circuit breaker. The moving contacts of the knife switch and the vacuum arc extinguishing chamber are driven by corresponding operating mechanisms to realize the opening and closing of the switch. The pole switch adopting the above structure has the problem of short life because the disconnector contacts are exposed and are easily affected by the surrounding environment and corroded. In addition, since the knife switch needs to have a certain range of movement, the overall size is large, which does not meet the requirements of the current power grid system.

[0004] In order to solve the above problems, the Chinese invention patent application with application publication number CN110853952A and application publication date February 28, 2020 provides a pole switch with a built-in disconnector, in which a circuit breaker and a disconnector are installed in a housing, and an isolation operating mechanism and a circuit breaker operating mechanism are provided at corresponding positions in the front of the housing; the main shaft of the disconnector is connected to the isolation operating mechanism; and the transmission part of the circuit breaker is connected to the circuit breaker operating mechanism. Since the disconnector and the grounding switch are both arranged in a common housing, the overall size of the pole switch can be reduced accordingly, and the disconnector is protected from erosion by the external environment.

[0005] Although the above-mentioned pole-mounted switch realizes the arrangement of the isolating switch and the circuit breaker in the same box, the isolating operating mechanism of the isolating switch and the circuit breaking operating mechanism of the circuit breaker are independent structures, so the overall size of the pole-mounted switch is still not compact enough. In addition, in order to ensure the safety of the circuit, the circuit breaker and the isolating switch of the pole-mounted switch need to have an interlocking relationship, that is, when the circuit breaker is in the closed state, the isolating switch is not allowed to be opened or closed; when the circuit breaker is in the open state, the isolating switch is not locked; if the isolating switch is not opened or closed in place, the circuit breaker is not allowed to be closed. Summary of the invention

[0006] The object of the present invention is to provide an isolating switch-circuit breaker operating mechanism to achieve interlocking of the isolating switch and the circuit breaker to ensure circuit safety.

[0007] At the same time, the object of the present invention is also to provide a pole-mounted switch using the above-mentioned disconnector-circuit breaker operating mechanism.

[0008] To achieve the above-mentioned purpose, the isolating switch-circuit breaker operating mechanism of the present invention adopts the following technical scheme: the isolating switch-circuit breaker operating mechanism comprises a front panel, a support plate and a rear panel which are arranged in sequence from front to back, a circuit breaker power mechanism for operating the circuit breaker is arranged between the front panel and the support plate, and an isolating switch power mechanism for operating the isolating switch is arranged between the rear panel and the support plate, the circuit breaker power mechanism comprises a circuit breaker operating shaft, the isolating switch power mechanism comprises an isolating switch operating shaft, the circuit breaker operating shaft is connected to an interlocking plate through an interlocking crank arm, an output gear is installed on the isolating switch operating shaft, and an axially extending stop pin is arranged on the output gear, when the circuit breaker is in the open position, the end of the interlocking plate away from the interlocking crank arm avoids the active path of the stop pin following the opening and closing of the isolating switch, and in other states of the circuit breaker, the end of the interlocking plate away from the interlocking crank arm extends to the active path of the stop pin following the opening and closing of the isolating switch.

[0009] Furthermore, a linkage shaft and a circuit breaker opening and closing indication switch for indicating the opening and closing status of the circuit breaker are installed between the front panel and the support plate. One end of the linkage shaft is transmission-connected to the interlocking plate through a crank arm, and the other end of the linkage shaft is connected to a paddle plate. The circuit breaker opening and closing indication switch is located on both sides of the linkage shaft and can be triggered by the paddle plate when the paddle plate is rotated to a corresponding position.

[0010] Furthermore, the circuit breaker opening and closing indicating switch is a micro switch.

[0011] Furthermore, an isolating switch opening and closing indicating switch for indicating the opening and closing status of the isolating switch is arranged around the isolating switch operating shaft on the front side of the support plate, a lever is installed on the isolating switch operating shaft, and a transmission plate is arranged on the support plate between the lever and the isolating switch opening and closing indicating switch, and the transmission plate and the support plate rotate to cooperate to form a seesaw structure.

[0012] Furthermore, the isolating switch opening and closing indicating switch is a micro switch.

[0013] Furthermore, a forked arm is provided on one side of the interlocking plate, and the crank arm of the linkage rotating shaft is connected to the forked arm.

[0014] Furthermore, a connecting pin is provided on the interlocking crank arm, and the interlocking plate is connected to the connecting pin via a connecting long hole provided thereon.

[0015] Furthermore, the support plate is provided with a guide pin cooperating with the interlocking plate, and the interlocking plate cooperates with the guide pin through a long hole provided thereon.

[0016] Furthermore, the output gear is a sector gear.

[0017] Beneficial effects: The technical solution of the isolating switch-circuit breaker operating mechanism of the present invention is a pioneering invention. Specifically, the present invention realizes the integration of the existing isolating switch operating mechanism and the circuit breaker operating mechanism by making the circuit breaker power mechanism and the isolating switch power mechanism share a support plate, so that the two can have a more precise relative position, and then an interlocking plate is set between the isolating switch operating shaft of the isolating switch power mechanism and the circuit breaker operating shaft of the circuit breaker power mechanism, and the position of the interlocking plate and the position of the circuit breaker have a certain corresponding relationship through the interlocking crank arm, and the interlocking plate and the stop pin on the output gear have a certain positional relationship, and the stop pin and the isolating switch have a certain positional relationship, so that the circuit breaker power mechanism and the isolating switch power mechanism can be interlocked, because the interlocking plate avoids the active path of the stop pin only when the circuit breaker is in the open state, and extends to the active path of the stop pin in other states, therefore, when the circuit breaker is not in the open state, the isolating switch cannot be operated, and when the isolating switch is not in the open or closed state, the circuit breaker cannot be closed, so that the circuit breaker and the isolating switch can be interlocked to ensure circuit safety.

[0018] The column switch of the present invention adopts the following technical solutions: A pole-mounted switch includes an isolating switch and a circuit breaker, wherein the isolating switch and the circuit breaker are both connected to an isolating switch-circuit breaker operating mechanism, wherein the isolating switch-circuit breaker operating mechanism includes a front panel, a support plate and a rear panel which are arranged in sequence from front to back, a circuit breaker power mechanism for operating the circuit breaker is arranged between the front panel and the support plate, and an isolating switch power mechanism for operating the isolating switch is arranged between the rear panel and the support plate, wherein the circuit breaker power mechanism includes a circuit breaker operating shaft, wherein the isolating switch power mechanism includes an isolating switch operating shaft, wherein the circuit breaker operating shaft is connected to an interlocking plate via an interlocking crank arm, an output gear is mounted on the isolating switch operating shaft, and an axially extending stop pin is arranged on the output gear, wherein when the circuit breaker is in the open position, an end of the interlocking plate away from the interlocking crank arm avoids the active path of the stop pin following the opening and closing of the isolating switch, and in other states of the circuit breaker, an end of the interlocking plate away from the interlocking crank arm extends to the active path of the stop pin following the opening and closing of the isolating switch.

[0019] Furthermore, a linkage shaft and a circuit breaker opening and closing indication switch for indicating the opening and closing status of the circuit breaker are installed between the front panel and the support plate. One end of the linkage shaft is transmission-connected to the interlocking plate through a crank arm, and the other end of the linkage shaft is connected to a paddle plate. The circuit breaker opening and closing indication switch is located on both sides of the linkage shaft and can be triggered by the paddle plate when the paddle plate is rotated to a corresponding position.

[0020] Furthermore, the circuit breaker opening and closing indicating switch is a micro switch.

[0021] Furthermore, an isolating switch opening and closing indicating switch for indicating the opening and closing status of the isolating switch is arranged around the isolating switch operating shaft on the front side of the support plate, a lever is installed on the isolating switch operating shaft, and a transmission plate is arranged on the support plate between the lever and the isolating switch opening and closing indicating switch, and the transmission plate and the support plate rotate to cooperate to form a seesaw structure.

[0022] Furthermore, the isolating switch opening and closing indicating switch is a micro switch.

[0023] Furthermore, a forked arm is provided on one side of the interlocking plate, and the crank arm of the linkage rotating shaft is connected to the forked arm.

[0024] Furthermore, a connecting pin is provided on the interlocking crank arm, and the interlocking plate is connected to the connecting pin via a connecting long hole provided thereon.

[0025] Furthermore, the support plate is provided with a guide pin cooperating with the interlocking plate, and the interlocking plate cooperates with the guide pin through a long hole provided thereon.

[0026] Furthermore, the output gear is a sector gear.

[0027] Beneficial effect: The technical solution of the pole-mounted switch of the present invention is an improved invention. Specifically, the isolating switch-circuit breaker operating mechanism realizes the integration of the existing isolating switch operating mechanism and the circuit breaker operating mechanism by making the circuit breaker power mechanism and the isolating switch power mechanism share a support plate, so that the two can have a more precise relative position, and then an interlocking plate is set between the isolating switch operating shaft of the isolating switch power mechanism and the circuit breaker operating shaft of the circuit breaker power mechanism, and the position of the interlocking plate and the position of the circuit breaker have a certain corresponding relationship through the interlocking crank arm, and the interlocking plate and the stop pin on the output gear have a certain positional relationship, and the stop pin and the isolating switch have a certain positional relationship, so that the circuit breaker power mechanism and the isolating switch power mechanism can be interlocked, because the interlocking plate avoids the active path of the stop pin only when the circuit breaker is in the open state, and extends to the active path of the stop pin in other states, so when the circuit breaker is not in the open state, the isolating switch cannot be operated, and when the isolating switch is not in the open or closed state, the circuit breaker cannot be closed, so that the circuit breaker and the isolating switch can be interlocked to ensure circuit safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a rear view of an embodiment of the isolating switch-circuit breaker operating mechanism of the present invention; Figure 2 yes Figure 1 Rear view of the disconnector-circuit breaker operating mechanism without the rear panel; Figure 3 yes Figure 1 The front view of the isolating switch-circuit breaker operating mechanism in FIG. Figure 4 yes Figure 1 Right side view of the isolating switch-circuit breaker operating mechanism in FIG. Figure 5 yes Figure 1 A three-dimensional diagram of the operating mechanism of the disconnector-circuit breaker.

[0029] In the figure: 101, front panel; 102, support plate; 103, rear panel; 104, circuit breaker operating shaft; 105, interlocking plate; 51, fork arm; 106, disconnector operating shaft; 107, operating head; 108, stop pin; 109, closing spring; 110, opening spring; 111, motor; 112, interlocking crank arm; 113, output gear; 114, limit nut; 115, linkage shaft; 116, circuit breaker opening and closing indication switch; 117, synchronous crank arm; 118, transmission pin; 119, disconnector opening and closing indication switch; 120, lever; 121, transmission plate; 122, connecting pin; 123, guide pin. DETAILED DESCRIPTION

[0030] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0031] The circuit breakers and disconnectors of existing pole-mounted switches usually use independent operating mechanisms for opening and closing operations. For example, the circuit breaker is equipped with a circuit breaker operating mechanism, and the disconnector is equipped with an disconnector operating mechanism. The two are independent of each other and are installed in the pole-mounted switch box respectively. Since they are installed independently, the relative position relationship accuracy of each component is poor, and it is difficult to arrange the interlocking mechanism. The disconnector-circuit breaker operating mechanism of the present invention uses the support plate 102 as the rear panel of the circuit breaker operating mechanism and as the front panel of the disconnector operating mechanism. Its respective power mechanisms are integrated into the overall frame formed by the front panel 101, the support plate 102 and the rear panel 103, which can ensure the relative position of each component, thereby creating the conditions for setting an interlocking mechanism between the disconnector power mechanism and the circuit breaker power mechanism, and then through the interlocking plate 105 that is synchronously linked with the circuit breaker operating shaft 104 of the circuit breaker power mechanism and the disconnector power mechanism, the interlocking mechanism is realized. The output gear 113 and the stop pin 108 linked to the isolating switch operating shaft 106 of the switch power mechanism can realize the interlocking between the circuit breaker and the isolating switch. Specifically, the interlocking plate 105 avoids the movable path of the stop pin 108 only when the circuit breaker is in the open state, and extends to the movable path of the stop pin 108 in other states. Therefore, when the circuit breaker is not in the open state, the isolating switch cannot be operated. When the isolating switch is not in the open or closed state, the circuit breaker will not be able to perform the closing operation, thereby realizing the interlocking of the circuit breaker and the isolating switch to ensure circuit safety.

[0032] Based on the above inventive concept, a basic implementation method of the isolating switch-circuit breaker operating mechanism of the present invention is as follows: Figure 1-5 As shown, in a basic embodiment, the disconnector-circuit breaker operating mechanism includes a front panel 101, a support plate 102 and a rear panel 103, which are arranged in sequence from front to back, and a space for arranging the circuit breaker power mechanism is formed between the front panel 101 and the support plate 102, and a space for arranging the disconnector power mechanism is formed between the rear panel 103 and the support plate 102, as shown in FIG. Figure 4 As shown, the space for arranging the circuit breaker power mechanism and the space for arranging the disconnector power mechanism are basically staggered in the direction parallel to the front and rear panels. After the circuit breaker power mechanism and the disconnector power mechanism are installed, there will be no interference between the two, and they can still work normally in their respective ways.

[0033] like Figure 4As shown, a circuit breaker power mechanism for providing power to operate the circuit breaker is installed in the space between the front panel 101 and the support plate 102, and a disconnector power mechanism for providing power to operate the disconnector is installed in the space between the rear panel 103 and the support plate 102. The circuit breaker power mechanism includes a closing spring 109, an opening spring 110, a circuit breaker operating shaft 104 and other components, and the disconnector power mechanism includes a motor 111, a disconnector operating shaft 106 and other components. It should be noted here that the above-mentioned circuit breaker power mechanism and disconnector power mechanism are both commonly used mechanisms in this field. For example, in the prior art, the closing spring 109, the opening spring 110 and the circuit breaker operating shaft 104 of the circuit breaker power mechanism are all arranged between two panels spaced apart from each other in the same manner as the present invention, and the front panel 101 and the support plate 102 of the present invention correspond to the above-mentioned two panels; in the prior art, the motor 111, the disconnector operating shaft 106 and the like of the disconnector power mechanism are also arranged between two panels spaced apart from each other in the same manner as the present invention, and the rear panel 103 and the support plate 102 of the present invention correspond to the above-mentioned two panels. Therefore, the specific structures of the circuit breaker power mechanism and the disconnector power mechanism will not be repeated here.

[0034] In order to realize the interlocking between the circuit breaker and the disconnector, an interlocking crank arm 112 is installed on the circuit breaker operating shaft 104. Figure 1 , 2 As shown in Figures 4 and 5, the interlocking crank arm 112 is fixedly mounted on the circuit breaker operating shaft 104. When the circuit breaker operating shaft 104 rotates, the interlocking crank arm 112 will move synchronously with the circuit breaker operating shaft 104. Since there is a corresponding positional relationship between the phase of the circuit breaker operating shaft 104 and the opening and closing states of the circuit breaker, after the interlocking crank arm 112 is fixed to the circuit breaker operating shaft 104, it will also have a corresponding positional relationship with the opening and closing states of the circuit breaker.

[0035] The circuit breaker operating shaft 104 is connected to an interlocking plate 105 through an interlocking crank arm 112. The interlocking plate 105 is located at the rear side of the support plate 102, one end of which is connected to the interlocking crank arm 112, and the other end extends in a direction close to the disconnector operating shaft 106. Since there is a certain connection and transmission relationship between the interlocking plate 105 and the interlocking crank arm 112, the position of the interlocking plate 105 can also reflect the position of the circuit breaker. When the circuit breaker operating shaft 104 rotates, the other end of the interlocking plate 105 will reciprocate in the direction away from and close to the disconnector operating shaft 106, forming a mechanism similar to a rocker slider, wherein the interlocking plate 105 corresponds to the slider in the rocker slider mechanism.

[0036] like Figure 2As shown, an operating head 107 is provided at one end of the disconnector operating shaft 106. In order to realize the transmission between the disconnector operating shaft 106 and the output shaft of the disconnector power mechanism, an output gear 113 is provided on the disconnector operating shaft 106. The "output" here is relative to the disconnector operating shaft 106, and the output means outputting the action of the disconnector operating shaft 106. Since it is directly fixed on the disconnector operating shaft 106, and the phase of the disconnector operating shaft 106 has a corresponding relationship with the disconnector opening and closing position of the disconnector, the phase of the output gear 113 has a certain corresponding relationship with the disconnector opening and closing state of the disconnector. By controlling the output gear 113, the disconnector opening and closing state of the disconnector can be controlled. In order to make the disconnector opening and closing position of the disconnector have a specific interlocking relationship with the disconnector opening and closing position of the circuit breaker, a stop pin 108 is provided on the output gear 113. The stop pin 108 extends along the axial direction of the output gear 113, and can be fixed to the output gear by welding, threaded connection, riveting, etc., or can be integrated with the output gear 113. When the output gear 113 rotates with the disconnector operating shaft 106, the stop pin 108 will move synchronously with the output gear 113, and the movement will be performed along a fixed path, which can be called the "moving path of the stop pin following the disconnector opening and closing". In order to increase the matching size with the interlocking plate 105, a limit nut 114 is provided at the matching position of the stop pin 108 with the interlocking plate 105, and the limit nut 114 can play a role in axial positioning of the stop pin 108.

[0037] Since there is a corresponding positional relationship between the stop pin 108 and the opening and closing positions of the isolating switch, and there is a corresponding positional relationship between the interlocking plate 105 and the opening and closing positions of the circuit breaker, a specific corresponding relationship can be formed between the opening and closing positions of the isolating switch and the opening and closing positions of the circuit breaker by setting the relative positions of the stop pin 108 and the interlocking plate 105, thereby realizing interlocking. Based on the above concept, in the isolating switch-circuit breaker operating mechanism of the present invention, when the circuit breaker is in the opening position, the interlocking plate 105 is away from one end of the interlocking arm 112, that is, the end close to the isolating switch operating shaft 106 avoids the moving path of the stop pin 108 following the opening and closing of the isolating switch. At this time, the interlocking plate 105 and the stop pin 108 do not interfere with each other, so the isolating switch operating shaft 106 can be freely rotated to perform the opening and closing operations on the isolating switch, and of course, the circuit breaker can also be closed; in other states of the circuit breaker (closing, half-open and half-closed), The interlocking plate 105 extends from one end of the interlocking arm 112 to the movable path of the stop pin 108 as the isolating switch is opened and closed. At this time, if the isolating switch operating shaft 106 rotates, the stop pin 108 will interfere with the interlocking plate 105 and be blocked, so the isolating switch cannot be opened and closed; of course, if the isolating switch is in a half-open and half-closed state, the stop pin 108 will interfere with the interlocking plate 105, and the circuit breaker cannot be closed at this time. Therefore, the isolating switch-circuit breaker operating mechanism of the present invention realizes the interlocking of the isolating switch and the circuit breaker.

[0038] On the basis of the above basic implementation manner, as a preferred implementation manner, the disconnector-circuit breaker operating mechanism of the present invention is provided with a linkage shaft 115 between the front panel 101 and the support plate 102, one end of the linkage shaft 115 is rotationally matched with the front panel 101, and the other end is rotationally matched with the support plate 102. In addition to the linkage shaft 115, a circuit breaker opening and closing indication switch 116 is also installed between the front panel 101 and the support plate 102. The circuit breaker opening and closing indication switch 116 can indicate the opening and closing position of the circuit breaker by being turned on and off. A dial plate (not shown in the figure) is provided on the linkage shaft 115, and the dial plate can cooperate with the circuit breaker opening and closing indication switch to switch its on and off state. As mentioned above, there is a specific corresponding relationship between the position of the interlocking plate 105 and the opening and closing position of the circuit breaker, so the linkage shaft 115 and the interlocking plate 105 are connected by synchronous transmission. Since the movement of the interlocking plate 105 is a translation, in order to achieve motion conversion, the translation of the interlocking plate 105 is converted into the rotation of the linkage shaft 115, and a crank arm is provided at one end of the linkage shaft 115, which is referred to as a synchronous crank arm 117. The linkage shaft 115 is connected to the interlocking plate 105 through the synchronous crank arm 117. Specifically, a long hole is provided on the synchronous crank arm 117, and a transmission pin 118 is provided on the interlocking plate 105. The transmission pin 118 is located in the long hole on the synchronous crank arm 117, so that the synchronous transmission between the interlocking plate 105 and the synchronous crank arm 117 can be achieved.

[0039] It should be noted here that, although in the above-mentioned embodiment, the synchronous crank arm 117 and the interlocking plate 105 are matched through the long hole on the synchronous crank arm 117, those skilled in the art should be able to understand that, in some other embodiments, a connecting rod can be provided between the synchronous crank arm 117 and the interlocking plate 105 to form a connecting rod mechanism to realize the linkage between the interlocking plate 105 and the synchronous crank arm 117. Although this method will lead to an increase in the number of mechanism components or a decrease in the matching accuracy to a certain extent, it can still achieve the effect of synchronous linkage.

[0040] On the basis of the above preferred implementation, as a more preferred implementation, the circuit breaker opening and closing indication switch 116 adopts an 8-open 8-closed micro switch. In the traditional circuit breaker operating mechanism, an auxiliary switch is generally used to indicate the opening and closing positions of the circuit breaker. The present invention adopts a micro switch to replace the traditional auxiliary switch. By changing the position of the dial plate during the closing and opening process, the switching of the micro switch position signal can be realized, and finally the switching of the circuit breaker remote control and remote signal position signal is realized. It has a small size, occupies less space, is more flexible in installation, and reduces costs.

[0041] In addition, on the basis of the above-mentioned embodiments, in another preferred embodiment of the isolating switch-circuit breaker operating mechanism of the present invention, an isolating switch opening and closing indicating switch 119 for indicating the opening and closing state of the isolating switch is arranged around the isolating switch operating shaft 106 on the front side of the support plate 102, and a lever 120 is installed on the isolating switch operating shaft 106. The lever 120 can be fixed to the isolating switch operating shaft 106 by welding, threaded connection, riveting, etc., or it can be integrated with the isolating switch operating shaft 106, and it only needs to ensure that a certain angle is formed between its extension direction and the isolating switch operating shaft 106. A transmission plate 121 is arranged on the support plate 102 between the lever 120 and the isolating switch opening and closing indicating switch 119, and the transmission plate 121 rotates with the support plate 102 to form a seesaw structure. Since the output angle of the disconnector operating shaft 106 is about 87°, the relative position of the disconnector closing and opening can be determined according to the output angle of the disconnector operating shaft 106. After the disconnector closing and opening pointer is installed, a mechanical signal indication can be formed to confirm the position of the disconnector mechanism. By setting the lever 120 on the disconnector operating shaft 106, when the disconnector is in the closed position / open position, the lever 120 moves one end of the transmission plate 121, and the other end of the transmission rod 121 contacts the disconnector closing and opening indication switch 119, forming a switch position switch. Through the position switch switching, the disconnector closing and opening position signals can be output, forming a closing and opening electronic signal output.

[0042] As mentioned above, the output angle of the isolating switch operating shaft 106 is approximately 87°. Therefore, in a preferred embodiment, the output gear 113 adopts a fan-shaped gear. Under the premise of meeting the transmission requirements, the structure of the output gear 113 can be simplified, the space it occupies can be reduced, and interference with other components of the mechanism can be avoided, thereby further realizing the miniaturization of the mechanism.

[0043] On the basis of the above preferred implementation, as a more preferred implementation, the isolating switch opening and closing indication switch 119 adopts a micro switch, which has the advantages of sensitive response, low cost and easy layout.

[0044] Based on the above embodiments, considering the arrangement of the transmission structure between the interlocking plate 105 and the synchronous crank arm 117, as shown in FIG. Figure 2 , 5 As shown, a fork arm 51 is provided on one side of the interlocking plate 105 . The structure of the fork arm 51 is similar to the fork of a road. The turning arm of the linkage shaft 115 is connected to the fork arm. The transmission pin 118 is provided on the fork arm 51 .

[0045] On the basis of the above-mentioned embodiments, in consideration of the simplification of the connection structure between the interlocking plate 105 and the interlocking crank arm 112, a connecting pin 122 is provided on the interlocking crank arm 112, and the interlocking plate 105 is connected to the connecting pin 122 via a connecting long hole provided thereon; of course, in other embodiments, the connection between the two can also be achieved by connecting a connecting rod between the interlocking plate 105 and the interlocking crank arm 112. In this case, the requirements of synchronous transmission can still be met.

[0046] In order to ensure the moving path of the interlocking plate 105 with a simple structure, on the basis of the above embodiments, a guide pin 123 cooperating with the interlocking plate 105 is provided on the support plate 102, and the interlocking plate 105 cooperates with the guide pin 123 through the long hole provided thereon. Of course, in order to constrain the moving direction and path of the interlocking plate 105, providing the above guide pin and the long hole is not the only implementation method. For example, in some other embodiments, a guide groove can also be provided on the support plate 102 to guide the interlocking plate 105, or limit columns can be provided on both sides of the interlocking plate on the support plate to constrain the moving path of the interlocking plate by the limit columns.

[0047] Implementation of the pole switch of the present invention: The pole-mounted switch of the present invention comprises a circuit breaker and a disconnector, wherein the circuit breaker and the disconnector are both connected to an operating mechanism, which is the disconnector-circuit breaker operating mechanism of the present invention. For the specific structure of the disconnector-circuit breaker operating mechanism, reference may be made to the specific implementation manner of the disconnector-circuit breaker operating mechanism of the present invention, which will not be described in detail herein.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. Isolating switch-circuit breaker operating mechanism, characterized in that: The utility model comprises a front panel, a support plate and a rear panel which are arranged in sequence from front to rear, a circuit breaker power mechanism for operating the circuit breaker is arranged between the front panel and the support plate, an isolating switch power mechanism for operating the isolating switch is arranged between the rear panel and the support plate, the circuit breaker power mechanism comprises a circuit breaker operating shaft, the isolating switch power mechanism comprises an isolating switch operating shaft, the circuit breaker operating shaft is connected with an interlocking plate through an interlocking crank arm, an output gear is mounted on the isolating switch operating shaft, an axially extending stop pin is arranged on the output gear, when the circuit breaker is in the opening position, the end of the interlocking plate away from the interlocking crank arm avoids the moving path of the stop pin following the opening and closing of the isolating switch, and in other states of the circuit breaker, the end of the interlocking plate away from the interlocking crank arm extends to the moving path of the stop pin following the opening and closing of the isolating switch.

2. The isolating switch-circuit breaker operating mechanism according to claim 1, characterized in that: A linkage shaft and a circuit breaker opening and closing indication switch for indicating the opening and closing status of the circuit breaker are installed between the front panel and the support plate. One end of the linkage shaft is transmission-connected to the interlocking plate through a crank arm, and the other end of the linkage shaft is connected to a paddle plate. The circuit breaker opening and closing indication switch is located on both sides of the linkage shaft and can be triggered by the paddle plate when the paddle plate is rotated to a corresponding position.

3. The isolating switch-circuit breaker operating mechanism according to claim 2, characterized in that: The circuit breaker opening and closing indicating switch is a micro switch.

4. The isolating switch-circuit breaker operating mechanism according to claim 1, 2 or 3, characterized in that: An isolating switch opening and closing indicating switch for indicating the opening and closing status of the isolating switch is arranged around the isolating switch operating shaft on the front side of the support plate, a lever is installed on the isolating switch operating shaft, and a transmission plate is arranged on the support plate between the lever and the isolating switch opening and closing indicating switch, and the transmission plate and the support plate rotate to cooperate to form a seesaw structure.

5. The isolating switch-circuit breaker operating mechanism according to claim 4, characterized in that: The isolating switch opening and closing indicating switch is a micro switch.

6. The isolating switch-circuit breaker operating mechanism according to claim 2 or 3, characterized in that: A forked arm is arranged on one side of the interlocking plate, and the crank arm of the linkage rotating shaft is connected to the forked arm.

7. The isolating switch-circuit breaker operating mechanism according to claim 1, 2 or 3, characterized in that: The interlocking crank arm is provided with a connecting pin, and the interlocking plate is connected to the connecting pin through a connecting long hole provided thereon.

8. The isolating switch-circuit breaker operating mechanism according to claim 1, 2 or 3, characterized in that: The support plate is provided with a guide pin that cooperates with the interlocking plate, and the interlocking plate cooperates with the guide pin through a long hole provided thereon.

9. The isolating switch-circuit breaker operating mechanism according to claim 1, 2 or 3, characterized in that: The output gear is a sector gear.

10. A pole-mounted switch, including a disconnector and a circuit breaker, characterized in that: The isolating switch and the circuit breaker are both connected to the isolating switch-circuit breaker operating mechanism described in any one of claims 1-9.

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