JP6077249B2 - Operation device for side switch - Google Patents

Description

  The present invention relates to a side switch operating device for forced tripping in a side switch.

  In a high-voltage distribution line, it is attached to a voltage regulator for adjusting the voltage of the lowered or raised distribution line to a normal voltage so that power transmission on the distribution line will not be stopped when the voltage regulator fails or is inspected. A side switch is provided (for example, see Patent Document 1). In the bypass switch described in this document, two opening / closing sections are provided in the case. Each open / close section includes a movable contact that contacts the fixed contact for the side path and a movable contact that contacts the fixed contact provided on the adjuster side. The opening / closing part is connected to an operating mechanism composed of a plurality of links, and the operating mechanism is driven by operating a handle provided outside the case to open / close the opening / closing part. When switching from the voltage regulator to the bypass by this bypass switch, the handle is rotated, and the movable contact is connected to the fixed contact for the bypass via an operating mechanism consisting of a plurality of links. Both the voltage regulator side and the bypass side are connected via the flow resistance. Further, when the handle is rotated, the current limiting resistance is bypassed to complete the side path.

  On the contrary, when switching to the voltage regulator, the handle is rotated in the opposite direction to the above, and the movable contact is separated from the fixed contact on the side of the road via the operation mechanism composed of a plurality of links. Both the voltage regulator side and the bypass side are connected via the resistor. Further, when the handle is rotated, the movable contact is driven to move away from the fixed contact on the side, and the voltage regulator is inserted into the main line.

  The contact of such a switch is usually tripped by the spring force of the drive mechanism. However, a forcible trip mechanism that directly transmits the rotational torque of the handle to the contact portion is provided in preparation for a case where the current is opened and closed repeatedly and the surface of the fixed contact becomes rough and cannot be removed only by the spring force.

Here, an example of the operation device of the air switch including the forced trip mechanism will be described in detail with reference to FIG.
As shown in FIG. 5, an air switch mounting plate 100, a handle shaft side lever 110, a main contact shaft side lever 120, and a connecting rod 130 are provided. One end of the handle shaft side lever 110 is rotatable about the handle shaft 111. A connecting rod 130 is connected to the other end of the handle shaft side lever 110 via a movable connecting point 112. The connecting rod 130 is provided with an elongated rocking hole 131.

  One end of the main contact shaft side lever 120 is rotatable about the main contact shaft 121. A pin 122 is provided at the other end of the main contact shaft side lever 120 and is inserted into the swing hole 131 of the connecting rod 130.

  Fig.5 (a) has shown the state before forced trip of an air switch. In this state, the pin 122 is near the center of the connecting rod 130. When the forced trip is started, the handle shaft side lever 110 is brought into contact with the main contact shaft side lever 120 as shown in FIG. In this case, as shown in FIG. 5C, the main contact shaft side lever 120 is tripped by the collision impact of the handle shaft side lever 110 and the force of the coil spring.

Japanese Patent Publication No.55-13092

  In the air switch described above, a linear connecting rod 130 is attached to the handle shaft 111 and the main contact shaft side lever 120. The connecting rod 130 has a structure in which the end of the swing hole 131 can come into contact with the pin 122 of the main contact shaft side lever 120 at the start timing of forced tripping. For this reason, the length of the swing hole 131 into which the pin 122 is inserted is the distance L1 corresponding to the start of the operation of the handle shaft 111 and before the start of the forced trip, and the distance corresponding to the main contact shaft rotation angle at the time of switching the contact. Determined by L2.

  And since the bypass switch has a larger handle rotation angle and rotation angle of the movable contact than the air switch, the forced trip mechanism also becomes larger. For this reason, in the side switch, the swing hole 131 becomes longer, so the connecting rod 130 in which the swing hole 131 is formed also needs to be lengthened, and the whole mechanism tends to be large.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an operating device for a side-way switch in which the entire mechanism is downsized.

In order to solve the above problems, the invention according to claim 1 is an operation lever rotatable around a rotation shaft, a connection plate rotatable around the rotation shaft, the operation lever, and the connection plate. And an urging member for urging the actuating lever and the connecting plate in directions opposite to each other, and a handle shaft rotatable about a handle shaft connected to the connecting plate A side lever, one end pivotable about the main contact shaft , the other end connected to the actuating lever, a main contact shaft side lever , a pin provided on the main contact shaft side lever, A contact portion that is provided on the handle shaft side lever and contacts the pin by the rotation of the handle shaft side lever, and the contact portion contacts the pin by the rotation of the handle shaft side lever; The handle shaft side lever is on the main contact shaft side And gist to carry out tripping of the main contact by extruding bar.

According to a second aspect of the present invention, in the operation device for a side switch according to the first aspect, the handle shaft side lever pushes the main contact shaft side lever to bias the operation lever of the biasing member. The gist of the invention is that the main contact shaft side lever is pivoted in the direction in which the main contact shaft side lever is pushed out by the biasing force of the biasing member transmitted by the actuating lever to trip the main contact. .

According to a third aspect of the present invention, in the operation device for a side switch according to the first or second aspect, the contact portion is a flat portion formed at both ends of the handle shaft side lever having a bent shape. This is the gist. According to a fourth aspect of the present invention, in the operation device for a side switch according to the third aspect , the flat portion is integrally formed at both ends of the handle shaft side lever via stepped portions, and the pin is The gist of the invention is that the main contact shaft side lever is disposed at a position on the path along which the flat portion moves by the rotation of the handle shaft side lever .

(Function)
According to the present disclosure, Rutotomoni provided a pin into main contact shaft side lever, handle shaft side levers are abutting portion abuts against the pin by turning, the handle shaft side lever main contact shaft side lever Is configured to extrude . Thus, the handle shaft side levers is directly main contact shaft side lever and the push, it is possible to omit the connecting rod, it is possible to reduce the number of parts. Further, the handle shaft side levers are so push the main contact shaft side lever by turning, in comparison with the case of extruding the linear movement, it is possible to reduce the size of the entire mechanism.

According to the present disclosure, handle shaft side lever has a bent shape, a step is provided between the flat portion abutting the pin and a portion of the handle shaft is provided. As a result, the handle shaft side lever rotates to push out the pin of the main contact shaft side lever, so that the entire mechanism can be miniaturized. According to the present disclosure, since the handle shaft side lever includes the flat portions at both ends of the bent shape, the pin can be pushed out from both directions.

  According to the present invention, the entire mechanism can be reduced in size.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the operating device for side road switches in 1st Embodiment, Comprising: (a) is a top view before forcible trip, (b) is a perspective view. Explanatory drawing of the positional relationship at the time of the forced trip start of the operating device for side road switches in 1st Embodiment. Explanatory drawing of the positional relationship at the time of the forced trip completion of the operating device for bypass switches in 1st Embodiment. It is explanatory drawing of the positional relationship of the principal part of the operating device for sideways switches in the example of a change, (a) before forced trip, (b) at the time of forced trip start, (c) after completion of forced trip. Indicates the state. It is explanatory drawing of the positional relationship of the principal part of the operating device for bypass switches in a prior art, (a) is before forcible trip, (b) is the time of forced trip start, (c) is after completion of forced trip. Indicates the state.

(First embodiment)
Hereinafter, an embodiment of an operation device for a side switch that embodies the present invention will be described with reference to FIGS.

  As shown in FIG. 1 (a), the operating device for a side switch is provided with a handle shaft side lever 210 and a main contact shaft side lever 220 on the mounting plate 200. The handle shaft side lever 210 is rotatable about the handle shaft 211 as a central axis. The handle shaft side lever 210 is bent so as to abut near the root of the pin 222 of the main contact shaft side lever 220 (described later) when the handle shaft side lever 210 is pulled out from the “side way” and “adjuster entered” state (this embodiment). Then, it is composed of “shape”. Further, a flat portion 213 is integrally formed on the handle shaft side lever 210 via a step portion 212.

  On the other hand, the main contact shaft side lever 220 is rotatable about the main contact shaft 221 as a central axis, and is connected to a movable contact (not shown). Further, a pin 222 is fixed to the main contact shaft side lever 220 by welding. The pin 222 is disposed at a position where the flat portion 213 of the handle shaft side lever 210 can come into contact with the pin when being forcibly pulled off.

  Regarding the components other than the handle shaft side lever 210 and the main contact shaft side lever 220, the connection relationship is shown by a skeleton. Specifically, one end of the link arm 230 is connected to the main contact shaft side lever 220 via the movable connecting shaft 231. The other end of the link arm 230 is connected to the operating lever 240 via the movable connecting shaft 232. The operation lever 240 is rotatable about the rotation shaft 241.

  Further, a link plate 250 is attached to the handle shaft 211 in the handle shaft side lever 210.

  The link plate 250 is connected to one end of the link arm 260 via the movable connecting shaft 261. The other end of the link arm 260 is connected to the bent connection plate 270 via the movable connection shaft 262. The link arm 260 is rotatable around the rotation shaft 241.

The other end of the connecting plate 270 and the other end of the operating lever 240 are connected by a coil spring 290 as an urging member.
Furthermore, stoppers 281 and 282 are provided on the mounting plate 200. The stoppers 281 and 282 define the rotation limit of the operating lever 240 and the connecting plate 270. That is, when it is inserted to the adjuster side, the operating lever 240 comes into contact with the stopper 282 and the connecting plate 270 comes into contact with the stopper 281. On the other hand, when it is inserted to the side of the road, the operating lever 240 comes into contact with the stopper 281 and the connecting plate 270 comes into contact with the stopper 282.

  As shown in FIG. 1B, a main contact shaft side lever 220 is provided on the lowermost mounting plate. A handle shaft side lever 210 and a link arm 230 are provided on the upper layer of the main contact shaft side lever 220. An operation lever 240 is provided in the upper layer of the link arm 230. A link plate 250 and a link arm 260 are provided in this order on the upper layer of the handle shaft side lever 210. A connecting plate 270 is provided below the link arm 260, and the connecting plate 270 is connected to the operating lever 240 via a coil spring 290.

(Function)
Next, the operation of the above-described side switch operating device will be described.
Prior to the forcible trip, the handle shaft side lever 210 is disposed at the position shown in FIG. In this case, the connecting plate 270 contacts the stopper 281, and the operation lever 240 contacts the stopper 282.

When forcible tripping from the side path side to the adjuster side is performed, the handle shaft side lever 210 is rotated by rotating the handle shaft 211 in the first direction (counterclockwise direction) in FIG.
Thereafter, the handle shaft side lever 210 is rotated to a position where the handle shaft side lever 210 contacts the pin 222 of the main contact shaft side lever 220. Then, by pushing the pin 222 of the main contact shaft side lever 220 by the flat portion 213 of the handle shaft side lever 210, the forcible trip is started as shown in FIG. In this case, the link plate 250 rotates, and the link arm 260 connected to the link plate 250 via the movable connecting shaft 261 and the connecting plate 270 connected to the link arm 260 via the movable connecting shaft 262 also rotate. On the other hand, the link arm 230 connected to the main contact shaft side lever 220 via the movable connecting shaft 231 and the operating lever 240 connected to the link arm 230 via the movable connecting shaft 232 remain at the same position. In this case, the coil spring 290 connected to the operating lever 240 and the connecting plate 270 is compressed.

  As shown in FIG. 3, when the pin 222 of the main contact shaft side lever 220 is pushed out, the main contact shaft side lever 220 rotates. In this case, the link arm 230 and the operating lever 240 connected to the main contact shaft side lever 220 are rotated to complete the contact operation and complete the forcible trip.

  Further, in the case of performing forced forced trip from the regulator side to the side road side, in the state shown in FIG. 3, a second direction (in the present embodiment, a clockwise direction opposite to the first direction). ), The handle shaft side lever 210 is rotated. In this case, the flat portion 213 at the other end of the handle shaft side lever 210 contacts the pin 222, and the state shown in FIG. 2 is transitioned to the state shown in FIG.

According to this embodiment, the following effects can be obtained.
(1) The operating device for a side switch according to this embodiment includes a handle shaft side lever 210 and a main contact shaft side lever 220. The main contact shaft side lever 220 connected to the movable contact is rotatable about the main contact shaft 221 as a central axis. A pin 222 is fixed to the main contact shaft side lever 220. The handle shaft side lever 210 is rotatable about the handle shaft 211 as a central axis, and is configured to be bent so as to abut near the base of the pin 222 of the main contact shaft side lever 220. As a result, when forcible tripping from the side road side to the regulator side or forcible tripping from the regulator side to the side road side, the handle shaft side lever 210 directly connects the pin 222 of the main contact shaft side lever 220 directly. Since it extrudes, a connecting rod can be omitted and the number of parts can be reduced. Furthermore, the handle shaft side lever 210 pushes the pin 222 by rotating, so that the entire mechanism can be made smaller as compared with the case where the handle shaft side lever 210 is pushed by linear motion.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. In the first embodiment, the handle shaft side lever 210 is brought into contact with the pin 222 of the main contact shaft side lever 220. However, in this embodiment, a pin is provided on the handle shaft side lever, and this is provided with the main contact shaft side lever. Abut. Moreover, in this embodiment, about the part similar to 1st Embodiment, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

  As shown in FIG. 4, the handle switch side lever 310 and the main contact shaft side lever 320 are provided on the mounting plate 300 in the side switch operating device of the present embodiment. In the present embodiment, a linear handle shaft side lever 310 is provided instead of the bent handle shaft side lever 210 in the first embodiment. The handle shaft side lever 310 is provided with a handle shaft 311 at one end and a pin 312 at the other end. The handle shaft side lever 310 is rotatable about the handle shaft 311 as a central axis. Similar to the handle shaft 211 of the above-described embodiment, the handle shaft 311 is provided with a link plate (not shown) so as to maintain a constant angle with the handle shaft-side lever 310 with respect to the handle shaft 311. Yes. The link plate is connected to the link arm via a movable connecting shaft, and the link arm is connected to the connecting plate via a movable connecting shaft.

  On the other hand, the main contact shaft side lever 320 is rotatable about the main contact shaft 321 as a rotation axis, and is connected to a movable contact (not shown). The main contact shaft side lever 320 is provided with a swing hole 322. The swing hole 322 is an arc-shaped long hole with the main contact shaft 321 as the center. A pin 312 of the handle shaft side lever 310 is inserted into the swing hole 322. The swinging hole 322 is formed to have a length that abuts on the pin 312 of the handle shaft side lever 310 at the time of forcible tripping. Furthermore, one end of a link arm (not shown) is connected to one end of the main contact shaft side lever 320 via a movable connecting shaft (not shown), as in the first embodiment. The link arm is connected to an operating lever (not shown) via a movable connecting shaft, and the operating lever is connected to a connecting plate via a coil spring (not shown).

(Function)
Next, the operation of the operation device for a side switch according to this embodiment will be described with reference to FIG.
As shown in FIG. 4A, the pin 312 of the handle shaft side lever 310 is positioned in the vicinity of the left end portion of the swing hole 322 of the main contact shaft side lever 320 before forcible tripping.

  As shown in FIG. 4B, when forcible tripping from the side road side to the adjuster side, the handle shaft 311 is rotated in the first direction (counterclockwise direction), and the handle shaft side lever 310 is moved. Rotate. In this case, the pin 312 of the handle shaft side lever 310 moves in the swing hole 322 of the main contact shaft side lever 320 and comes into contact with the right end portion of the swing hole 322.

  As shown in FIG. 4C, when the pin 312 of the main contact shaft side lever 320 is pushed out, the main contact shaft side lever 320 rotates. In this case, the link arm and the actuating lever connected to the main contact shaft side lever 320 are rotated to finish the contact operation and complete the forcible trip.

  Further, when forcible tripping is performed from the regulator side to the side road side, in the state shown in FIG. 4C, a second direction (in this embodiment, a timepiece opposite to the first direction) The handle shaft side lever 310 is rotated in the rotation direction). In this case, the right end portion of the swing hole 322 abuts on the pin 312 of the main contact shaft side lever 320, and the state shown in FIG. 4B is changed to the state shown in FIG.

According to this embodiment, the following effects can be obtained.
(2) In this embodiment, the operating device for a side switch according to this embodiment includes a handle shaft side lever 310 and a main contact shaft side lever 320. The handle shaft side lever 310 is rotatable about the handle shaft 311 as a central axis. The handle shaft side lever 310 is provided with a handle shaft 311 at one end and a pin 312 at the other end. The main contact shaft side lever 320 connected to the movable contact is rotatable about the main contact shaft 321 as a central axis. The main contact shaft side lever 320 is provided with a swing hole 322 which is an arc-shaped long hole with the main contact shaft 321 as the center. A pin 312 of the handle shaft side lever 310 is inserted into the swing hole 322. The swing hole 322 is formed with a length that abuts on the pin 312 of the handle shaft side lever 310 when forcibly tripped. As a result, when the forced trip is performed to insert the adjuster, the pin 312 of the main contact shaft side lever 320 is directly pushed out at the right end portion of the swing hole 322 of the main contact shaft side lever 320. The connecting rod can be omitted, and the number of parts can be reduced. Furthermore, since the main contact shaft side lever 320 pushes the pin 312 by rotating, the entire mechanism can be downsized as compared with the case where the pin 312 is pushed by linear motion.

Further, the above embodiments may be modified as follows.
In the first embodiment, the pin 222 is provided on the main contact shaft side lever 220, but it is also possible to provide a pin on the handle shaft side lever 210. In this case, pins are provided at both ends of the handle shaft side lever 210.

  In the second embodiment, the pin 312 is provided on the handle shaft side lever 310, but a pin may be provided on the main contact shaft side lever 320. In this case, the handle shaft side lever 310 is provided with a long hole through which the pin can be rotated.

(Appendix)
Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below together with their effects.
This is a bypass switch that switches between the adjuster and the bypass. The handle shaft is fixed, the handle shaft side lever that can rotate around the handle shaft, and the main contact shaft are fixed. A main contact shaft side lever that is rotatable about the center, and the handle shaft side lever and the main contact shaft side lever are connected via a connecting member and a biasing member, the handle shaft side lever and the main contact An operation device for a side switch that fixes a pin to one of the shaft-side levers and pushes the pin by rotating the other of the handle shaft-side lever and the main contact shaft-side lever. A bypass switch characterized by comprising.
Thereby, the bypass switch itself can be reduced in size.

  200, 300 ... Mounting plate, 210, 310 ... Handle shaft side lever, 211, 311 ... Handle shaft, 212 ... Stepped portion, 213 ... Flat portion, 220, 320 ... Main contact shaft side lever, 221, 321 ... Main contact shaft , 222, 312 ... pin, 230 ... link arm, 231 ... movable connecting shaft, 232 ... movable connecting shaft, 240 ... actuating lever, 241 ... rotating shaft, 250 ... link plate, 260 ... link arm, 261 ... movable connecting shaft, 262 ... movable connecting shaft, 270 ... connecting plate, 281, 282 ... stopper, 290 ... coil spring, 322 ... swinging hole.

Claims (4)

An actuating lever rotatable around a rotation axis;
A connecting plate rotatable about the rotating shaft;
A biasing member connected between the actuating lever and the connecting plate, and biasing the actuating lever and the connecting plate in directions rotating in opposite directions;
A handle shaft side lever rotatable about a handle shaft connected to the connecting plate ;
A main contact shaft side lever having one end pivotable about the main contact shaft and the other end connected to the operating lever ;
A pin provided on the main contact shaft side lever;
A contact portion provided on the handle shaft side lever and contacting the pin by rotation of the handle shaft side lever;
With
The contact portion comes into contact with the pin by the rotation of the handle shaft side lever, and the handle shaft side lever pushes out the main contact shaft side lever to trip the main contact. An operation device for a side switch. When the handle shaft side lever pushes out the main contact shaft side lever, the direction of urging the operation lever of the urging member is switched, and the main member is urged by the urging force of the urging member transmitted by the operation lever. The contact shaft side lever is rotated in the pushed direction to trip the main contact.
The operating device for a side switch according to claim 1. The contact portion is a flat portion formed at both ends of the handle shaft side lever having a bent shape,
The operating device for a side switch according to claim 1 or 2. The flat portion is integrally formed on both ends of the handle shaft side lever via a stepped portion,
The pin is disposed at a position on the path of the main contact shaft side lever on which the flat portion moves due to the rotation of the handle shaft side lever.
The operation device for a side switch according to claim 3 .

Images