CN221529799U - Misoperation preventing interlocking mechanism of combined high-voltage circuit breaker - Google Patents

Abstract

The utility model discloses an anti-misoperation interlocking mechanism of a combined high-voltage circuit breaker, which comprises the following components: the panel is provided with an isolated grounding operation hole; the breaker shaft is provided with a first crank arm; one end of the isolation operation short shaft far away from the isolation grounding operation hole is matched with the isolation shaft and the grounding shaft; one end of the interlocking plate is positioned on the motion track of the first crank arm, and the other end of the interlocking plate is used for shielding or opening the isolated grounding operation hole; the electric device is electrically associated with the grounding end of the combined high-voltage circuit breaker and drives the interlocking plate to move. The interlocking cooperation between the isolating shaft and the grounding shaft changes the operation holes in the panel from two to one, so that the interlocking mechanism is simple, and only the interlocking between the opening and closing state of the circuit breaker and the isolating grounding operation hole needs to be controlled. The combination of manual and electric forms an interlocking effect of isolating the ground operation hole, thereby preventing the occurrence of misoperation.

Description

Misoperation preventing interlocking mechanism of combined high-voltage circuit breaker

Technical Field

The utility model relates to the technical field of power transmission and distribution and high-voltage switch equipment, in particular to an misoperation preventing interlocking mechanism of a combined high-voltage circuit breaker.

Background

The combined high-voltage circuit breaker comprises: the high-voltage circuit breaker, the high-voltage isolating switch and the high-voltage grounding switch are combined, and the five-prevention requirements are met among the high-voltage switches in the combined high-voltage circuit breaker. Two of the five protection parts are: ① The on-load disconnecting switch ② prevents the live wire from hanging (closing) to the ground wire (the ground switch), and simply speaking, after the high-voltage circuit breaker is closed, the high-voltage disconnecting switch does not allow the on-off operation; when the grounding end of the combined high-voltage circuit breaker is electrified, the high-voltage grounding switch is not allowed to be closed.

The panel of the existing combined high-voltage breaker is provided with three operation holes which respectively correspond to the high-voltage breaker, the high-voltage isolating switch and the high-voltage grounding switch, and in order to realize the two five-prevention requirements, the panel adopts a mechanical interlocking structure, so that the internal structure is complex. Therefore, the interlocking effect is better, the structure is simple, and the technical problem which is needed to be solved by the person skilled in the art is solved.

Disclosure of utility model

Therefore, the utility model aims to solve the technical problems of better interlocking effect and simple structure. For this purpose, an anti-misoperation interlocking mechanism of a combined high-voltage circuit breaker comprises:

the panel is provided with an isolated grounding operation hole;

the circuit breaker shaft is provided with a first crank arm;

The isolation operation short shaft and the isolation grounding operation hole are arranged coaxially, and one end of the isolation operation short shaft far away from the isolation grounding operation hole is matched with the isolation shaft and the grounding shaft;

One end of the interlocking plate is positioned on the motion track of the first crank arm, and the other end of the interlocking plate is used for shielding or opening the isolated grounding operation hole;

The electric device is electrically associated with the grounding end of the combined high-voltage circuit breaker and drives the interlocking plate to move.

The automatic connecting device comprises a panel, a first connecting rod, a second connecting rod, a connecting plate and a interlocking plate, and is characterized by further comprising a driven connecting rod and a connecting plate, wherein the driven connecting rod is in rotary connection with the panel, one end of the connecting plate is connected with the first connecting rod, the other end of the connecting plate is connected with the driven connecting rod, and one end of the interlocking plate is positioned on a motion track of the driven connecting rod.

The automatic locking device also comprises a roller, wherein one end of the driven crank arm, which is matched with the interlocking plate, is connected with the roller.

The panel is provided with a first fixing column, one end of the reset piece is matched with the first fixing column, and the other end of the reset piece is connected with the interlocking plate.

The number of the resetting pieces is one or two or more.

The interlocking plate is provided with a first waist-shaped hole, and the first fixing column slides in the first waist-shaped hole.

The panel is provided with a second fixing column, the interlocking plate is provided with a second waist-shaped hole, and the second fixing column slides in the second waist-shaped hole.

The electric device is matched with a grounding end sensor of the combined high-voltage circuit breaker through a secondary wiring.

The electric device comprises a lock tongue, wherein the interlocking plate is in linkage with the collision plate, and the collision plate is positioned on the motion track of the lock tongue.

The electric device is an electromagnetic lock or an electronic lock or a motor.

The device is characterized by further comprising a linkage connecting plate, wherein the isolation shaft is provided with an isolation shaft crank arm, the grounding shaft is provided with a grounding shaft crank arm, one end of the linkage connecting plate is connected with the isolation shaft crank arm, and the other end of the linkage connecting plate is connected with the grounding shaft crank arm.

The technical scheme of the utility model has the following advantages:

1. According to the misoperation preventing interlocking mechanism of the combined high-voltage circuit breaker, the interlocking fit between the isolating shaft and the grounding shaft is adopted, so that the operation holes in the panel are changed from two to one, the interlocking mechanism is simple, and only the interlocking between the opening and closing state of the circuit breaker and the isolated grounding operation hole is required to be controlled. Secondly, the first crank arm is matched with the interlocking plate to form a mechanical interlocking effect, when the high-voltage circuit breaker is in a closing state, the first crank arm drives the interlocking plate to move towards the isolated grounding operation hole to realize a shielding and closing effect of the isolated grounding operation hole, so that the high-voltage isolating switch does not allow opening and closing operations after the high-voltage circuit breaker is closed; when the grounding end is electrified, the electric device works to drive the interlocking plate to move, so that the shielding and closing effect of the isolated grounding operation hole is realized, and at the moment, the isolated grounding operation hole cannot be operated. When the high-voltage circuit breaker is in a closing state or the grounding end is electrified, the isolation grounding operation hole cannot be operated, and only when the high-voltage circuit breaker is in a breaking state or the grounding end is not electrified, the isolation grounding operation hole can be operated. By combining the manual operation and the electric operation, an interlocking effect of isolating the ground operation hole is formed, thereby preventing the occurrence of erroneous operation.

2. According to the misoperation preventing interlocking mechanism of the combined high-voltage circuit breaker, provided by the utility model, the driving effect of the interlocking plate is realized through the cooperation between the connecting plate and the driven crank arm, and meanwhile, the driven crank arm also realizes the purposes of reinforcing, expanding stroke, realizing remote transmission and the like, and the space utilization rate is improved.

3. According to the misoperation-preventing interlocking mechanism of the combined high-voltage circuit breaker, provided by the utility model, the rollers are arranged, so that the friction resistance is reduced, the operation is smoother, and the circuit breaker shaft is smoother to operate.

4. According to the misoperation preventing interlocking mechanism of the combined high-voltage circuit breaker, the reset piece is arranged, so that the reset effect is achieved, and when the force applied to the interlocking plate disappears, the reset piece can drive the interlocking plate to recover to the initial state.

5. According to the misoperation preventing interlocking mechanism of the combined high-voltage circuit breaker, a larger restoring force is provided through the combination of the resetting pieces, and the effect of quick resetting is achieved.

6. According to the misoperation-preventing interlocking mechanism of the combined high-voltage circuit breaker, the first fixing column is used for stretching the reset piece to form energy storage of the reset piece, and when the interlocking plate moves, the first fixing column slides in the first waist-shaped hole to achieve a better matching effect.

7. According to the misoperation-preventing interlocking mechanism of the combined high-voltage circuit breaker, the second fixing column is matched with the second waist-shaped hole, so that a guiding effect is formed, and the movement direction of the interlocking plate cannot deviate.

8. According to the misoperation preventing interlocking mechanism of the combined high-voltage circuit breaker, provided by the utility model, the grounding end sensor is used for detecting whether the grounding end is electrified, so that the control effect of the electric device is realized, and the detection is more accurate. The sensor here is specifically fitted with an electrified display, so that an electrical correlation effect is achieved.

9. The misoperation-preventing interlocking mechanism of the combined high-voltage circuit breaker provided by the utility model has the advantages that the lock tongue is matched with the collision plate, so that the driving effect of the interlocking plate is better realized.

10. The utility model provides an misoperation-preventing interlocking mechanism of a combined high-voltage circuit breaker, and an electric device can select different devices according to actual requirements.

11. The misoperation-preventing interlocking mechanism of the combined high-voltage circuit breaker provided by the utility model has the advantages that the interlocking effect between the isolating shaft and the grounding shaft is formed by the linkage connecting plate, and in a simple way, when the isolating shaft is in a closing state, the grounding shaft is in a separating brake state; when the isolating shaft is in the opening state, the grounding shaft is in the closing state, namely, simultaneous closing or simultaneous opening cannot be realized.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a partial structure of an anti-misoperation interlocking mechanism of a combined high-voltage circuit breaker;

fig. 2 is a schematic diagram of a partial structure of an anti-misoperation interlocking mechanism of a combined high-voltage circuit breaker;

Fig. 3 is a schematic diagram of a structure for unlocking an isolated grounding operation hole when a high-voltage circuit breaker is opened and an electric device is unlocked;

fig. 4 is a schematic diagram of a structure in which an electric device is unlocked and an isolated grounding operation hole is locked after a high-voltage circuit breaker is opened;

fig. 5 is a schematic diagram of a structure in which an electric device is unlocked and an isolated grounding operation hole is locked when a high-voltage circuit breaker is closed;

Fig. 6 is a schematic diagram of a structure in which an electric device is unlocked and an isolated grounding operation hole is locked after a high-voltage circuit breaker provided by the utility model is closed;

fig. 7 is a schematic structural diagram of an anti-misoperation interlocking mechanism of a combined high-voltage circuit breaker;

Fig. 8 is a partial enlarged view of a portion a in fig. 7.

Reference numerals illustrate:

11. A panel; 12. a breaker shaft; 13. a breaker spindle; 14. isolating the operation short shaft; 15. a separation shaft; 16. a grounding shaft; 17. a interlock plate; 18. an electric device; 19. a driven crank arm; 20. a connecting plate; 21. a linkage connecting plate; 22. a roller; 23. a reset member; 24. a striking plate; 25. a front side plate; 26. a support post; 27. a rear side plate; 28. a circuit breaker chassis; 112. isolating the ground operating hole; 113. a first fixing column; 114. a second fixing column; 115. a third fixing column; 121. a first lever; 151. isolating the shaft lever; 161. a grounding shaft crank arm; 171. a planar portion; 172. a limiting surface; 173. a first waist-shaped hole; 174. a second waist-shaped hole; 181. a bolt;

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

The embodiment provides an anti-misoperation interlocking mechanism of a combined high-voltage circuit breaker, which is shown in figures 1-8 and comprises:

The panel 11 is positioned on the front side of the panel 11, and the operator performs related operations through the panel 11, and in addition, the panel 11 may be fixed with an indication device such as a meter. In this embodiment, the panel 11 is provided with a grounding isolation operation hole 112. The isolation grounding operation hole 112 is used for being matched with a high-voltage isolation switch and a high-voltage grounding switch, an operator passes through the isolation grounding operation hole 112 through an operation rod to realize the opening and closing operation of the high-voltage isolation switch or the opening and closing operation of the high-voltage grounding switch, and the high-voltage isolation switch and the high-voltage grounding switch are mutually held, so that when the high-voltage isolation switch is in a closing state, the high-voltage grounding switch is in an opening state; when the high-voltage isolating switch is in the opening state, the high-voltage grounding switch is in the closing state.

The breaker shaft 12, the breaker shaft 12 and the breaker main shaft 13 are arranged coaxially, and an operator realizes the switching-on and switching-off effect of the high-voltage breaker through electric control or manual knob. One end of the breaker shaft 12 faces the panel 11, the other end of the breaker shaft 12 faces the inside and is connected with the breaker spindle 13, and the connection mode can form a connection fixing effect through an elastic pin or a bolt, so that the breaker shaft 12 and the breaker spindle 13 do the same movement during the opening and closing operation of the breaker. In addition, the breaker shaft 12 and the breaker main shaft 13 may be integrally formed. In the present embodiment, the split structure is adopted because of space limitation, and the larger diameter of the breaker main shaft 13 affects the operation space on one side of the panel 11, so that the breaker shaft 12 and the breaker main shaft 13 cooperate to form a linkage effect. The breaker shaft 12 is provided with a first crank arm 121, the first crank arm 121 moves in synchronization with the breaker shaft 12, and when the breaker shaft 12 rotates, the first crank arm 121 rotates accordingly.

The isolation operation short shaft 14, the isolation operation short shaft 14 and the isolation grounding operation hole 112 are arranged coaxially, and the operation rod passes through the isolation grounding operation hole 112 to be matched with the isolation operation short shaft 14, so that the driving effect of the isolation operation short shaft 14 is realized, and the switching-on and switching-off effect of the high-voltage isolation switch or the high-voltage grounding switch is realized. The isolation operation stub shaft 14 has one end facing the isolation grounding operation hole 112, and the other end of the isolation operation stub shaft 14 faces the inside and is connected with the isolation shaft 15, and the connection manner can form a connection fixing effect through an elastic pin or a bolt, wherein the isolation operation stub shaft 14 and the isolation shaft 15 are coaxially arranged. The isolating shaft 15 and the grounding shaft 16 can be connected in other modes to form a mutually-restraining effect. In addition to the present embodiment, the isolation operation stub shaft 14 may be disposed coaxially with the ground shaft 16, and the isolation operation stub shaft 14 and the ground shaft 16 may be connected and fixed to each other, thereby achieving a linkage effect, and then the isolation shaft 15 and the ground shaft 16 achieve a mutual restraining effect through interlocking and matching.

And one end of the interlocking plate 17 is positioned on the movement track of the first crank arm 121. The other end of the interlock plate 17 is used to block or open the isolated ground operation hole 112. The interlocking plate 17 can vertically move up and down, the first crank arm 121 can be matched with the upper end of the interlocking plate 17, and the first crank arm 121 can also be matched with the lower end of the interlocking plate 17; the interlocking plate 17 can also horizontally move left and right, the first crank arm 121 can be matched with the left end of the interlocking plate 17, and the first crank arm 121 can also be matched with the right end of the interlocking plate 17, so that the driving effect of the first crank arm 121 is achieved. In this embodiment, only the interlocking plate 17 is taken as an example to vertically move up and down, and the first crank arm 121 is matched with the upper end of the interlocking plate 17. I.e., the force of the radial rotation of the breaker shaft 12, is formed by the cooperation of the first crank arm 121 and the interlocking plate 17 to a vertically downward force, thereby achieving a downward movement effect of the interlocking plate 17, and at this time, the isolated grounding operation hole 112 is located below the panel 11.

And an electric device 18, wherein the electric device 18 is matched with the grounding end of the combined high-voltage circuit breaker, the electric device 18 works when the grounding end is electrified, and the electric device 18 does not work when the grounding end is not electrified. The electric device 18 drives the interlocking plate 17 to move. Here, the electric device 18 and the first crank arm 121 may both implement movement of the interlocking plate 17, specifically, vertical downward movement of the interlocking plate 17, and the mating position of the electric device 18 and the interlocking plate 17 may be the upper end of the interlocking plate 17, or may be other positions of the interlocking plate 17, for example, a middle or middle-lower position, which may be adjusted by those skilled in the art according to actual needs. With this structural arrangement, the interlocking fit between the isolating shaft 15 and the grounding shaft 16 is firstly achieved, so that the two corresponding operation holes on the panel 11 are changed into one operation hole, the interlocking mechanism is simple, and only the interlocking between the opening and closing state of the circuit breaker and the isolating grounding operation hole 112 needs to be controlled. Secondly, the first crank arm 121 is matched with the interlocking plate 17 to form a mechanical interlocking effect, when the high-voltage circuit breaker is in a closing state, the first crank arm 121 drives the interlocking plate 17 to move towards the isolated grounding operation hole 112 to realize a shielding and closing effect of the isolated grounding operation hole 112, so that the high-voltage isolating switch does not allow opening and closing operations after the high-voltage circuit breaker is closed; when the grounding end is electrified, the electric device 18 works to drive the interlocking plate 17 to move, so that the shielding and closing effect of the isolated grounding operation hole 112 is realized, and at the moment, the isolated grounding operation hole 112 cannot be operated. When the high-voltage circuit breaker is in a closing state or the grounding end is electrified, the isolation grounding operation hole 112 cannot be operated, and only when the high-voltage circuit breaker is in a breaking state or the grounding end is not electrified, the isolation grounding operation hole 112 can be operated. By combining the manual operation and the electric operation, an interlocking effect of isolating the ground operation hole 112 is formed, thereby preventing occurrence of erroneous operation.

Specifically, as shown in fig. 2-6, the device further comprises a driven crank arm 19 and a connecting plate 20, wherein the driven crank arm 19 is in rotary connection with the panel 11, specifically, the panel 11 is provided with a third fixing column 115, and the driven crank arm 19 is sleeved on the third fixing column 115, so that a rotary effect of the driven crank arm 19 relative to the panel 11 is achieved. The connection part of the driven crank arm 19 and the third fixed column 115 is specifically located at the end part of the driven crank arm 19, that is, one end of the driven crank arm 19 is sleeved on the third fixed column 115, the other end of the driven crank arm 19 is matched with the upper end of the interlocking plate 17, and the upper end of the interlocking plate 17 is located on the movement track of the other end of the driven crank arm 19. One end of the connecting plate 20 is connected to the first lever 121, specifically, hinged connection, i.e., rotational connection. Here, the connecting plate 20 may be connected to an end of the first crank arm 121 away from the breaker shaft 12, or may be connected to the rest position of the first crank arm 121, for example, an intermediate position or other positions, where in this embodiment, the connecting plate 20 and the first crank arm 121 form a 7-shaped structure. The other end of the connecting plate 20 is connected with the driven crank arm 19, wherein the other end of the connecting plate 20 is connected with the middle position of the driven crank arm 19, and the effect of rotation connection is specifically formed, and the connecting plate can be connected through a pin shaft. Besides, the connecting plate 20 can also adjust the connecting position between the connecting plate 20 and the driven crank arm 19 according to actual requirements. When the breaker shaft 12 rotates to drive the first crank arm 121 to rotate, the first crank arm 121 achieves the rotating effect of the driven crank arm 19 through the connecting plate 20, the driven crank arm 19 rotates, the lower end of the driven crank arm 19 moves downwards in an arc shape, and the effect that the driven crank arm 19 drives the upper end of the interlocking plate 17 to move is achieved. At this time, the upper end of the interlock plate 17 is positioned on the movement trace of the lower end of the driven crank arm 19. Through the cooperation between link plate 20 and the driven turning arm 19 to realized the drive effect of interlocking plate 17, driven turning arm 19 has still realized the reinforcement simultaneously, has enlarged stroke and has realized purposes such as long-range transmission, improves space utilization. In addition to the present embodiment, the first crank arm 121 may be directly engaged with the upper end of the interlocking plate 17, thereby achieving the effect of vertically downward movement of the interlocking plate 17.

Specifically, as shown in fig. 2-6, the device further comprises a roller 22, and one end of the driven crank arm 19 matched with the interlocking plate 17 is connected with the roller 22. Specifically, the lower end of the driven crank arm 19 is fixedly connected with the roller 22, and the roller 22 and the driven crank arm 19 can be connected in a pin shaft connection or a bolt connection. The roller 22 cooperates with the upper end of the interlock plate 17 to provide a driving effect. The provision of the roller 22 reduces frictional resistance to allow smoother operation and smoother operation of the breaker shaft 12. Further, the upper end of the interlocking plate 17 includes a plane portion 171 and a limiting surface 172, the plane portion 171 is connected with the limiting surface 172, the plane portion 171 is parallel to the horizontal plane, the right end of the plane portion 171 is connected with the limiting surface 172, the limiting surface 172 extends obliquely upwards, and the limiting surface 172 may be an arc surface or an inclined surface. The roller 22 rolls on the plane portion 171, where the size of the plane portion 171 can be adjusted according to actual needs. The roller 22 is not separated from the flat surface 171 by the stopper surface 172. The movement locus of the roller 22 is on the plane portion 171.

Specifically, the first crank arm 121 and the driven crank arm 19 are not disposed in parallel, and the positional relationship between the first crank arm 121 and the driven crank arm 19 can be adjusted according to actual requirements.

Specifically, as shown in fig. 2-6, the panel 11 further includes a reset element 23, a first fixing column 113 is disposed on the panel 11, one end of the reset element 23 is matched with the first fixing column 113, the other end of the reset element 23 is connected with the interlocking plate 17, and specifically, a hanging hole is disposed on the interlocking plate 17, and one end of the reset element 23 is matched with the hanging hole. The reset member 23 is provided to form a reset effect, and when the force applied to the interlocking plate 17 is removed, the reset member 23 can drive the interlocking plate 17 to restore to the original state. The restoring element 23 here is embodied as a tension spring. Other resetting structures, such as compression springs and the like, can be selected by those skilled in the art according to actual requirements.

Specifically, as shown in fig. 2-6, the number of the resetting members 23 is two or more, where the number of the resetting members 23 can be adjusted according to actual needs, and when the number of the resetting members 23 is two or more, the resetting members 23 can be arranged in parallel, so that the resetting force can be more stable. By the combination of the plurality of restoring members 23, a larger restoring force is provided, and an effect of quick restoration is achieved. Therefore, the panel 11 is also provided with two first fixing posts 113, thereby achieving the matching effect. When the force applied to the interlock plate 17 (the force applied by the first lever 121 and the force applied by the electric device 18 when the circuit breaker is closed) disappears, the reset member 23 drives the interlock plate 17 to reset quickly.

Specifically, as shown in fig. 2 to 6, the interlocking plate 17 is provided with a first waist-shaped hole 173, and the first fixing post 113 slides in the first waist-shaped hole 173. The first fixing column 113 is used for stretching the reset piece 23 to form energy storage of the reset piece 23, and when the interlocking plate 17 moves, the first fixing column 113 slides in the first waist-shaped hole 173, so that the matching effect is better achieved. In this embodiment, the number of the first waist-shaped holes 173 is also two. The first waist-shaped hole 173 is vertically disposed up and down, such that the first fixing post 113 slides up and down in the first waist-shaped hole 173. In addition, the first fixing column 113 may be located at the outer side of the interlocking plate 17, thereby achieving the energy storage reset effect.

Specifically, as shown in fig. 2-6, the face plate 11 is provided with a second fixing post 114, the interlocking plate 17 is provided with a second waist-shaped hole 174, and the second fixing post 114 slides in the second waist-shaped hole 174. The cooperation of the second fixing post 114 and the second waist-shaped hole 174 forms a guiding effect so that the movement direction of the interlock plate 17 is not deviated. Here, the second fixing column 114 is located above the first fixing column 113, and the first fixing column 113 has a certain guiding effect while storing energy, and the second fixing column 114 further increases the guiding effect.

Specifically, as shown in fig. 2 to 6, the first fixing leg 113, the second fixing leg 114 and the third fixing leg 115 are all located at the inner side of the panel 11 toward the combined high voltage circuit breaker, i.e., the front side that is not directly observable by an operator. The first fixing column 113, the second fixing column 114 and the third fixing column 115 are all connected and fixed with the inner side of the panel 11, and can form a connecting and fixing effect through nail welding. The first fixing column 113, the second fixing column 114 and the third fixing column 115 are all of built-in structures, so that a hiding effect is formed, and one side of the panel 11 is provided, so that the first crank arm 121 and the interlocking plate 17 can be driven approximately on the same surface, and the driving is more accurate. The first fixing column 113, the second fixing column 114 and the third fixing column 115 can be short columns, the first fixing column 113, the second fixing column 114 and the third fixing column 115 can also be long columns, the first fixing column 113, the second fixing column 114 and the third fixing column 115 extend to be connected and fixed with the front side plate, and the supporting and fixing effect between the front side plate and the panel 11 is also formed on the premise of having the functions. In addition, the interlocking plate 17 is also located inside the panel 11, and the opening or closing of the isolated ground operation hole 112 is achieved by the vertical up-and-down movement, thereby achieving the interlocking effect. Here, the closing means specifically that the interlocking plate 17 moves vertically downward, the interlocking plate 17 is located inside the insulating ground operation hole 112, the interlocking plate 17 is located between the insulating ground operation hole 112 and the insulating operation stub shaft 14, and the operation lever passes through the insulating ground operation hole 112 and cannot be engaged with the insulating operation stub shaft 14. Further, the portion of the interlocking plate 17 that mates with the first fixing post 113 and the second fixing post 114 is provided with a bulge, that is, the middle area of the interlocking plate 17 bulges toward the front side plate, so that a certain installation space is provided for the reset member 23, and the lower end of the interlocking plate 17 is still attached to the panel 11, thereby forming a relative movement effect.

Specifically, as shown in fig. 2-6, the interlocking plate 17 closes or blocks the isolated grounding operation hole 112, where the lower end of the interlocking plate 17 may partially block the isolated grounding operation hole 112, or may completely block the isolated grounding operation hole 112, where the blocking only needs to ensure that the operation rod cannot pass through the isolated grounding operation hole 112 to be matched with the isolated operation stub shaft 14. When the isolated ground operation hole 112 is in the locked state, the area of the lower end of the interlocking plate 17, which shields the isolated ground operation hole 112, may be adjusted according to actual requirements, and may be half, or may be two thirds.

Specifically, the electric device 18 is mated with the ground sensor of the combined high voltage circuit breaker through a secondary connection. The ground terminal sensor is used for detecting whether the ground terminal is electrified, so that the control effect of the electric device 18 is realized, and the detection is more accurate. The sensor can be a non-contact sensor, the sensor performs the detection effect of the grounding end outside the safety distance, and the sensor is matched with the electrified display, so that the signal transmission effect is realized. When the grounding end is electrified, the sensor detects that a signal is transmitted to an electrified display, and the electrified display controls the electric device 18 to act; when the ground is not energized, no signal is transmitted from the sensor to the energized display, so the energized display does not signal the switch of the electric device 18. In this embodiment, when the electric device 18 is an electromagnetic lock, the electric device 18 can be matched with the electrified display to form an integrated module structure. In addition to the present embodiment, other detection sensors may be used to detect whether the ground terminal is charged, such as current detection or voltage detection.

Specifically, as shown in fig. 1-6, the device further comprises a striking plate 24, the interlocking plate 17 is linked with the striking plate 24, and the connection mode between the interlocking plate 17 and the striking plate 24 can be a bolt connection mode or a welding mode or other connection modes. Here, the striking plate 24, the first fixing post 113 and the second fixing post 114 are disposed independently, and in this embodiment, the connection portion between the striking plate 24 and the interlocking plate 17 is located between the first fixing post 113 and the second fixing post 114. The electric device 18 is located on the right side of the interlocking plate 17, the electric device 18 includes a lock tongue 181, and the striker plate 24 extends toward the electric device 18 side such that the striker plate 24 is located on the movement locus of the lock tongue 181. When the lock tongue 181 moves vertically downward, the lock tongue 181 drives the striking plate 24 to move vertically downward, and at this time, the interlock plate 17 also moves vertically downward, so as to realize the closing effect of the isolated grounding operation hole 112. The cooperation of the lock tongue 181 and the striking plate 24 better realizes the driving effect of the interlocking plate 17. In addition, the electric device 18 may be located on the left side of the interlocking plate 17 or above the interlocking plate 17 or below the interlocking plate 17, and the interlocking plate 17 may move vertically downward.

Specifically, the electric device 18 is an electromagnetic lock or an electronic lock or a motor. The electric device 18 can select different equipment according to actual requirements. In this embodiment, the electric device 18 only takes an electromagnetic lock as an example, and the electromagnetic lock can achieve the shrinkage effect when the electromagnetic lock is powered off relative to other devices, and can recover to the initial state without an instruction, so that the detection and maintenance are more convenient.

In particular, as shown in fig. 1-6, the electric device 18 is specifically connected and fixed to the panel 11, and may be specifically a bolt or a snap-fit type. Further, the panel 11 is provided with a through hole, the electric device 18 extends towards the through hole, and the electric device 18 extends to a side surface of the through hole and can be level with the panel 11 or lower than the panel 11. In addition, the side of the electric device 18 facing the panel 11 may be provided with an indication mark for giving an indication effect to the operator.

Specifically, as shown in fig. 7-8, the device further comprises a linkage connecting plate 21, the isolation shaft 15 is provided with an isolation shaft crank arm 151, the grounding shaft 16 is provided with a grounding shaft crank arm 161, one end of the linkage connecting plate 21 is connected with the isolation shaft crank arm 151, and the other end of the linkage connecting plate 21 is connected with the grounding shaft crank arm 161. The interlocking connection plate 21 forms an interlocking effect between the isolating shaft 15 and the grounding shaft 16, and in short, when the isolating shaft 15 is in a closing state, the grounding shaft 16 is in a separating state; when the isolating shaft 15 is in the opening state, the grounding shaft 16 is in the closing state, i.e. simultaneous closing or simultaneous opening cannot be achieved. In addition to the present embodiment, a person skilled in the art can implement an interlocking effect between the isolating shaft 15 and the grounding shaft 16, that is, an effect of mutual drag, through other transmission structures according to the angle of opening and closing rotation of the isolating shaft 15 and the angle of opening and closing rotation of the grounding shaft 16.

Specifically, the isolation shaft 15 and the isolation operating stub shaft 14 may be integrally formed. In the present embodiment, the diameter of the isolation shaft 15 is large due to space limitation, so that the small diameter of the isolation operation stub shaft 14 is matched with the isolation operation stub shaft 14 to realize the linkage effect.

Specifically, as shown in fig. 7-8, the front side plate 25 and the panel 11 are arranged in parallel, and are fixedly connected by the struts 26, where the number of the struts 26 may be four, so as to form a supporting effect.

Specifically, as shown in fig. 7-8, the rear side plate 27 and the front side plate 25 are arranged in parallel, and the breaker main shaft 13, the isolation shaft 15 and the grounding shaft 16 all pass through the front side plate 25 and the rear side plate 27, where the breaker main shaft 13, the isolation shaft 15 and the grounding shaft 16 can rotate relative to the front side plate 25 and the rear side plate 27. The rear side plate 27 and the front side plate 25 form a certain limit support for the breaker main shaft 13, the isolating shaft 15 and the grounding shaft 16, so that the breaker main shaft 13, the isolating shaft 15 and the grounding shaft 16 cannot fall off. The breaker shaft 12 and the isolation operating stub 14 also achieve a fixed support effect. In this embodiment, the isolating shaft lever 151, the grounding shaft lever 161, and the linkage connecting plate 21 are all located on the side of the rear side plate 27 facing away from the front side plate 25. The rear side plate 27 and the front side plate 25 are connected and fixed by a breaker chassis 28.

Specifically, in this embodiment, the breaker spindle 13 may implement an opening and closing operation through an electric or manual knob, the panel 11 is further provided with a breaker operation hole, and the breaker operation hole and the isolation grounding operation hole 112 are set independently from each other, and there is no intersection between the two operation holes. In this embodiment, the circuit breaker operation hole and the circuit breaker shaft are matched through other structures, specifically, the circuit breaker operation hole and the circuit breaker shaft are not coaxially arranged, and transmission is realized through the connection structure, which is irrelevant to this embodiment, so that the embodiment is not shown in the drawings.

Specifically, the structure in this embodiment is only for two five-prevention devices of "① prevent on-load on-off and on-off disconnecting switch ② prevent on-load hanging (on-off) of ground wire (ground switch)", the other three five-prevention devices are irrelevant to the present application, and a person skilled in the art can select different interlocking modes according to actual needs, so as to realize interlocking, and this embodiment is not described in detail.

Specifically, the working principle is as follows:

When the high voltage circuit breaker is closed, the circuit breaker shaft 12 rotates clockwise, and the driven crank arm 19 rotates clockwise by the linkage of the link plate 20. The driven crank arm 19 drives the roller 22 to rotate clockwise when rotating clockwise, and at the moment, the roller 22 serves as a driving piece to push the interlocking plate 17 to move vertically downwards, so that the interlocking plate 17 shields the isolated grounding operation hole 112, and interlocking is realized. Or the electric device 18 is related to the combined high-voltage circuit breaker grounding end sensor through secondary wiring, when the combined high-voltage circuit breaker grounding end is electrified, the lock tongue 181 of the electric device 18 stretches out to serve as a driving piece to push the striking plate 24, and the striking plate 24 is fixedly connected with the interlocking plate 17, so that the lock tongue 181 pushes the interlocking plate 17 to vertically move downwards, and the interlocking plate 17 shields the isolated grounding operation hole 112, so that interlocking is realized.

When the high-voltage circuit breaker is in a closing state or a grounding end electrification state (the electromagnetic lock bolt 181 stretches out), and any one of the conditions exists, the interlocking is in a locking state.

In the interlocking unlocking state, when the roller 22 and the electromagnetic lock are both in a weak action on the interlocking plate 17 and the collision plate 24, the interlocking plate 17 vertically moves upwards against the gravity of the user only under the action of the reset piece 23, so that the isolated grounding operation hole 112 on the panel 11 is exposed, and unlocking is realized.

At this time, the motion state of the combined high-voltage circuit breaker is as follows: the counterclockwise rotation of the breaker shaft 12 causes the driven crank arm 19 and the roller 22 to rotate counterclockwise through the linkage of the connecting plate 20, and the roller 22 is separated from the interlocking plate 17, so that the correlation of weakness is achieved. The grounding end of the combined high-voltage circuit breaker is not electrified, the electromagnetic lock is unlocked, the lock tongue 181 is contracted, and the lock tongue 181 is separated from the striking plate 24, so that the correlation of weakness is realized. At this time, the interlocking plate 17 only moves upward against its own weight under the action of the reset member 23, so that the isolated grounding operation hole 112 on the panel 11 is exposed, and unlocking is achieved.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. An anti-misoperation interlocking mechanism of a combined high-voltage circuit breaker, which is characterized by comprising:

a panel (11), wherein an isolated grounding operation hole (112) is formed in the panel (11);

A circuit breaker shaft (12), the circuit breaker shaft (12) being provided with a first lever (121);

The isolation operation short shaft (14) is coaxially arranged with the isolation grounding operation hole (112), and one end of the isolation operation short shaft (14) far away from the isolation grounding operation hole (112) is matched with the isolation shaft (15) and the grounding shaft (16);

The interlocking plate (17), one end of the interlocking plate (17) is positioned on the motion track of the first crank arm (121), and the other end of the interlocking plate (17) is used for shielding or opening the isolated grounding operation hole (112);

The electric device (18), the electric device (18) is in electrical association cooperation with the grounding end of the combined high-voltage circuit breaker, and the electric device (18) drives the interlocking plate (17) to move.

2. The misoperation preventing interlocking mechanism of the combined high-voltage circuit breaker according to claim 1, further comprising a driven crank arm (19) and a connecting plate (20), wherein the driven crank arm (19) is rotationally connected with the panel (11), one end of the connecting plate (20) is connected with the first crank arm (121), the other end of the connecting plate (20) is connected with the driven crank arm (19), and one end of the interlocking plate (17) is located on a movement track of the driven crank arm (19).

3. The misoperation prevention interlocking mechanism of the combined high-voltage circuit breaker according to claim 2 is characterized by further comprising a roller (22), wherein one end of the driven crank arm (19) matched with the interlocking plate (17) is connected with the roller (22).

4. The misoperation preventing interlocking mechanism of the combined high-voltage circuit breaker according to claim 1, characterized by further comprising a reset piece (23), wherein the panel (11) is provided with a first fixed column (113), one end of the reset piece (23) is matched with the first fixed column (113), and the other end of the reset piece (23) is connected with the interlocking plate (17).

5. The misoperation prevention interlocking mechanism of a combined high voltage circuit breaker according to claim 4, characterized in that the interlocking plate (17) is provided with a first waist-shaped hole (173), and the first fixing post (113) slides in the first waist-shaped hole (173).

6. The misoperation prevention interlocking mechanism of a combined high voltage circuit breaker according to claim 5, characterized in that the panel (11) is provided with a second fixed post (114), the interlocking plate (17) is provided with a second waist-shaped hole (174), and the second fixed post (114) slides in the second waist-shaped hole (174).

7. The misoperation prevention interlocking mechanism of the combined high-voltage circuit breaker according to claim 1, characterized in that the electric device (18) is matched with a grounding end sensor of the combined high-voltage circuit breaker through secondary wiring.

8. The misoperation prevention interlocking mechanism of a combined high-voltage circuit breaker according to claim 7, characterized in that the misoperation prevention interlocking mechanism further comprises a striking plate (24), the electric device (18) comprises a lock tongue (181), the interlocking plate (17) is linked with the striking plate (24), and the striking plate (24) is positioned on the movement track of the lock tongue (181).

9. The anti-misoperation interlocking mechanism of the combined high-voltage circuit breaker according to claim 1 or 7 or 8, characterized in that the electric device (18) is an electromagnetic lock or an electronic lock or a motor.

10. The misoperation prevention interlocking mechanism of a combined high-voltage circuit breaker according to claim 1, further comprising a linkage connecting plate (21), wherein the isolation shaft (15) is provided with an isolation shaft crank arm (151), the grounding shaft (16) is provided with a grounding shaft crank arm (161), one end of the linkage connecting plate (21) is connected with the isolation shaft crank arm (151), and the other end of the linkage connecting plate (21) is connected with the grounding shaft crank arm (161).