JP2505071Y2 - Switch operating mechanism - Google Patents

Description

[Detailed description of the device] A. Industrial field of application The present invention, like a disconnector with a grounding device,
The present invention relates to a switch operating mechanism having a function of holding in three position states of cutting (opening) or grounding.

B. Outline of the Invention The present invention is an operating mechanism for causing a switch to perform three kinds of operations rapidly, and a first operating shaft and a second operating shaft are provided for a main shaft portion for connecting to a switch or the like. Are installed at substantially equal distances, and a spring member is installed between the lever plates respectively provided on these, and first and second elongated hole links are pivotally attached to the respective lever plates, and the elongated holes are connected to the pins of the main lever plate. By inserting and interlocking, the whole structure is symmetrical and simple.

C. Conventional Technology Conventionally, as an operation mechanism of a switch (including a disconnector etc.), there is an operation mechanism illustrated in FIGS. 4 to 6. This operating mechanism is attached to the disconnecting switch 1 with a grounding device as shown in FIG.

The disconnector 1 with a grounding device comprises an operation mechanism 3 installed below a disconnector body 2.

The disconnector main body 2 has a first terminal 4 and a ground terminal 5 arranged at predetermined internal positions thereof, and a movable terminal 7 connected to the second terminal 6 and one end of which is pivotally mounted.

Then, the movable terminal 7 is switched by the link mechanism 8 interlocking with the operating mechanism 3 to the cut position shown by the solid line in the figure, the ground position connected to the ground terminal 5 shown by the two-dot chain line, and the on-position shown by the three-dot chain line. It works.

This switching operation is performed by the operating mechanism 3 that quickly operates by utilizing the energy stored in the spring in order to minimize damage caused by arcing.

FIG. 5 and FIG. 6 show the entry position stopped state and the grounding position stopped state of the operating mechanism 3. The operating mechanism 3 has a main shaft 9, a first operating shaft 10, and a second operating shaft 11.

Spring levers 12 and 13 are fixed to the first operating shaft 10 and the second operating shaft 11, respectively, and these two spring levers 12 and 13 are fixed.
A spring member 14 composed of a compression coil spring is mounted between the two. That is, one end of the spring member 14 is pivotally attached to the free end of one spring lever 12, and the other end of the spring member 14 is pivotally attached to the free end of the other spring lever 13.

A main lever 15 formed in a hook shape is pivotally attached to the main shaft 9. At the free end of one protrusion 15a of the main lever 15, pin 1
Project 6

Further, the free end of the first link lever 17 fixed to the first operation shaft 10 is pivotally attached to the root end of the first elongated hole link 18, and the elongated hole 19 provided at the tip of the first elongated hole link 18 is provided. Then, insert pin 16 freely. Along with this, the root end of the second oblong hole link 21 is pivotally attached to the free end of the second link lever 20 fixed to the second operation shaft 11, and the oblong hole provided at the tip portion of the second oblong hole link 21. Main lever by inserting pin 16 into 24 freely
Interlock 15

A part of the link mechanism 8 of the disconnector is pivotally attached to the free end of the other projecting piece 15b of the main lever 15 so as to be interlocked. In addition,
23, 26, 27, 28 are stoppers.

 Next, the operation of the above-mentioned conventional device will be described.

This device switches from the OFF state to the grounded state by rotating the first operating shaft 10 in the counterclockwise direction, and turns it in the OFF state by rotating the second operating shaft 11 in the counterclockwise direction. It is designed by setting the direction of movement so that it will be in the closed state.

First, in order to shift from the OFF state shown in FIG. 4 to the ON state shown in FIG. 5, the second operating shaft 11 is rotated counterclockwise by a manual operating device or an electric operating device (not shown). In accordance with this operation, the spring lever 14 rotates counterclockwise to store the spring member 14. When the spring lever 13 further rotates to exceed the dead center 22 on the mechanism, the accumulated energy causes the spring lever 13 to rotate vigorously, and the spring lever hits the stopper 23 and stops. The second elongated hole link 21 pivotally attached to the second link lever 20 of the second operation shaft 11 in conjunction with this quick movement moves to the left side in the figure, and at about half of its moving stroke, After the end of the slot 24 contacts the pin 16, the main lever
15 and the main shaft 9 are rotated clockwise to reach the entry position. In conjunction with this operation, the disconnecting switch also shifts from the OFF state to the ON state.

The operation of shifting from the ON state to the OFF state is exactly the reverse of the above.

Next, description will be given of the case of shifting from the OFF state shown in FIG. 4 to the ON state shown in FIG. In this case, the first operating shaft 10 is rotated counterclockwise by a manual operating device or the like (not shown). Then, the spring lever 12 rotates counterclockwise and stores the spring member 14 in an energized manner. Further spring lever 12
Rotates, and when the dead point 25 is exceeded, the spring member 14 rapidly rotates by the energy of the spring member 14, and the spring lever 12 abuts against the stopper 26 and stops. In conjunction with this, the first elongated hole link 18 pivotally attached to the first link lever 17 of the first operating shaft 10 moves to the right in the figure, and the end of the elongated hole 19 abuts the pin 16. After that, the main lever 15 and the main shaft 9 are rotated counterclockwise to reach the ground contact position. In conjunction with this operation, the disconnector also shifts from the off state to the grounded state. The operation of shifting from the grounded state to the off state is the reverse of the above.

D. Problems to be Solved by the Invention In the conventional switch operating mechanism as described above, the two first
The first elongated hole link 18 and the second elongated hole link 18 during the operation of the mechanism are arranged so that the angles formed by the elongated holes 19 and 24 of the elongated hole link 18 and the second elongated hole link 21 are made as small as possible and are as parallel as possible. Since the mutual frictional force with 21 and the smooth operation can be obtained, the first long hole link 18 and the second long hole link 21 are arranged so that the angles formed by the long holes are close to parallel. There is.

Therefore, the line segment connecting the main shaft 9 and the first operating shaft 10 and the first
The angle formed by the line segment connecting the operating shaft 10 and the second operating shaft 11 is an obtuse angle (about 130 degrees), and the distance between the first operating shaft 10 and the second operating shaft 11 is the main shaft 9 and the first operating shaft 11. It becomes significantly longer than the distance from the operating shaft 10. Therefore, the second slotted link 21
The overall length of the structure is long, and there is a lot of wasted space as a whole structure,
Since the volume is large, there is a problem that the production cost is high.

Further, since the second elongated hole link 21 intersects the shaft of the spring member 14, the first operating shaft 10 and the second operating shaft 11 have a spring lever and a first link lever, or a spring lever, respectively. There is a problem that a total of four levers including the lever and the second link lever are required, and the number of members increases.

Furthermore, as the mechanism as a whole, the operating angle of each lever and link is slanted, and there are few members that operate vertically or in parallel, so it is difficult to determine the angle of each member in terms of mechanism design, and during assembly, There is also a problem that it is difficult to adjust the stroke of a long hole link or the like.

The present invention has been made in view of the above points, and an object of the present invention is to newly provide an inexpensive switch operating mechanism which has a simple structure, can be downsized, has a simple operation, and can be easily manufactured.

E. Means for Solving the Problem In the switch operating mechanism of the present invention, a main lever plate to be connected to the switch is arranged on the main shaft, and the first operating shafts are arranged at positions substantially equidistant from the main shaft. And a second operating shaft, and a second end of the lever plate having a central portion attached to the first operating shaft and the second operating shaft.
A second elongated hole link in which a spring member is installed between one end of a lever plate having a central portion attached to the operation shaft and is substantially parallel to the spring member pivotally attached to the other end of the lever plate of the first operation shaft. A pin protruding from the main lever plate is slidably inserted into the long hole of the first long hole link that is substantially parallel to the spring member pivotally attached to the other end of the lever plate of the second operating shaft. It is characterized in that a pin protruding from the main lever plate is slidably inserted into the hole.

F. Operation The structure described above makes the overall structure symmetrical and simple, and the operating direction of this mechanism can be made to be close to the horizontal or vertical direction, so the design is easy and the stroke during assembly is easy. Adjustment is also easy.

G. Embodiment An embodiment of the operating mechanism of the switch according to the present invention will be described below with reference to FIGS. In FIGS. 1 to 3, parts corresponding to those of the conventional example shown in FIGS. 4 to 6 are designated by the same reference numerals, and detailed description thereof will be omitted.

1 to 3, 3 is an operating mechanism, 9 is a main shaft, 10 is a first operating shaft, 11 is a second operating shaft, 14 is a spring member, 36, 37, 3
8,39 are stoppers.

In the device of this example, the first operation shaft 10 and
The second operation shaft 11 and the second operation shaft 11 are set to be substantially equidistant.

Lever plates 29 and 30 formed in hook shapes are attached to the first and second operation shafts 10 and 11, respectively. One lever plate 29
One end of the spring member 14 is pivotally attached to the projecting piece 29a, and the other end of the spring member 14 is pivotally attached to the projecting piece 30a of the other lever plate 30.

The second elongated hole link 32 is pivotally attached to the protruding piece 29b of the lever plate 29, and the first elongated hole link 31 is pivotally attached to the protruding piece 30b of the lever plate 30.

A central portion of a linear main lever plate 33 is attached to the main shaft 9. A pin 16 is erected on one end of the main lever plate 33, movably inserted into the elongated hole 31a of the first elongated hole link 31 described above, and inserted into the elongated hole 32a of the second elongated hole link 32. Insert movably.

The other end of the main lever plate 33 is pivotally attached to and interlocks with a part of an operating link mechanism of a disconnector (not shown).

In the device of the present example configured as described above, in the cut state shown in FIG. 1, the spring member 14 is substantially parallel to the line segment connecting the first operating shaft 10 and the second operating shaft 11. At the same time, the first elongated hole link 31 and the second elongated hole link 32 are configured to be substantially parallel to each other. As a result, the first and second elongated hole links
It is possible to make 31,32 the minimum length, and both can have the same shape.

Next, the operation of the apparatus of this example configured as described above will be described.

First, in order to shift from the OFF state shown in FIG. 1 to the ON state shown in FIG. 2, the second operating shaft 11 is rotated counterclockwise by a manual operating device or an electric operating device (not shown). In accordance with this operation, the lever member 30 rotates counterclockwise to store the spring member 14. Further, when the lever plate 30 rotates and exceeds the dead point 35, the lever plate 30 vigorously rotates due to the stored energy, and the lever plate 30 contacts the stopper 38 and stops. In conjunction with this quick movement, the first elongated hole link 31 moves downward in the figure, and at about half of its stroke, the end of the elongated hole 31a comes into contact with the pin 16 and then the main lever plate. Turn 33 clockwise to reach the entry position.

In conjunction with this operation, the disconnecting switch also shifts from the OFF state to the ON state. The operation of shifting from the ON state to the OFF state is exactly the reverse of the above.

Next, description will be given of the case of shifting from the off state shown in FIG. 1 to the grounded state shown in FIG.

In this case, the first operating shaft 10 is rotated clockwise by a manual operating device or the like (not shown). Then, the lever plate 29
Stores the spring member 14 while rotating clockwise. When the lever plate 29 further rotates and exceeds the dead center 34, the lever plate 29 rapidly rotates by the energy of the spring member 14, and the lever plate 29 stops.
It hits 36 and stops. In conjunction with this, the second elongated hole link 32 pivotally attached to the lever plate 29 moves upward in the figure, and after the end of the elongated hole 32a abuts the pin 16, the main lever plate 33 is rotated counterclockwise. It rotates and reaches the grounding position.

In conjunction with this operation, the disconnector also shifts from the off state to the grounded state.

The operation of shifting from the grounded state to the off state is the reverse of the above.

The present invention is not limited to the above-described embodiments, and it goes without saying that various other configurations can be adopted without departing from the gist of the present invention.

H. Effect of the Invention As described in detail above, according to the switch operating mechanism of the present invention, the main lever plate to be connected to the switch is arranged on the main shaft, and the main lever plates are arranged at positions substantially equidistant from the main shaft. A first operating shaft and a second operating shaft are arranged, and a spring is provided between one end of a lever plate having a central portion attached to the first operating shaft and one end of a lever plate having a central portion attached to the second operating shaft. A member is installed, and a pin protruding from the main lever plate can be slid into the elongated hole of the second elongated hole link that is substantially parallel to the spring member pivotally attached to the other end of the lever plate of the first operation shaft. Insert the pin protruding from the main lever plate into the elongated hole of the first elongated hole link that is substantially parallel to the spring member pivotally attached to the other end of the lever plate of the second operation shaft. Since it was configured, the overall structure is symmetric and simplified,
Since the operation direction of this mechanism can be made to be close to the horizontal or vertical direction, there is an effect that the design is easy and the stroke adjustment at the time of assembly can be easy.

Further, the first long hole link and the second long hole link also need to have a substantially minimum length, and if the first long hole link and the second long hole link both have the same shape, the cost can be further reduced. You can

Furthermore, since the first long hole link and the second long hole link do not intersect with the shaft of the spring member, the main lever plate attached to the portions of the first operating shaft and the second operating shaft can be formed by one member, and its structure is The effect is that it can be simplified.

In addition, since the operating directions of the two first elongated hole links and the second elongated hole links can be made substantially parallel, there is an effect that the operating force (energy) can be efficiently transmitted to the spindle lever of the spindle.

[Brief description of drawings]

1 to 3 are schematic configuration diagrams of essential parts showing an embodiment of an operating mechanism of a switch according to the present invention, and FIG. 4 is a schematic configuration diagram illustrating a conventional disconnector with a grounding device, FIG. 5 and FIG. FIG. 6 is a schematic configuration diagram of the relevant parts. 1 ... Disconnector with grounding device, 3 ... Operating mechanism, 9 ... Main shaft, 10 ... First operating shaft, 11 ... Second operating shaft, 29, 30.
Lever plate, 31 …… first elongated hole link, 32 …… second elongated hole link, 33 …… main lever plate, 34,35 …… dead point, 36,37,38,39…
… A stopper.

Claims (1)

(57) [Scope of utility model registration request] 1. A main lever plate for operating a switch is arranged on a main shaft, and a first operation shaft and a second operation shaft are arranged at positions substantially equidistant from the main shaft, respectively. A spring member is installed between one end of the lever plate having a central portion attached to the second operation shaft and one end of the lever plate having a central portion attached to the second operation shaft, and the other end of the lever plate of the first operation shaft. A pin projecting from the main lever plate is slidably inserted into an elongated hole of a second elongated hole link that is pivotally attached to the second elongated member and is substantially parallel to the other end of the lever plate of the second operation shaft. An operating mechanism for a switch, characterized in that the pin is slidably inserted into an elongated hole of a first elongated hole link that is substantially parallel to the spring member pivotally attached to the portion.