JP3921972B2 - Gas switch drive unit and gas switch - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drive unit for a gas switch and a gas switch. More specifically, the present invention relates to a unit that can adjust the latch gap and the like of a latch mechanism that maintains a closed state after being automatically turned on by unitizing the drive unit of the gas switch before being incorporated into an enclosing case. Further, the present invention relates to a device that can easily adjust the size of the movable contact of the main contact device to the fixed contact.
[0002]
[Prior art]
Conventionally, in order to reduce the size of a switch, the case is sealed by welding,₆A gas switch filled with gas is made.
In an automatic operation type gas switch, it is necessary to maintain the closing state after being automatically turned on, and an electric current is always supplied to the solenoid coil that has been turned on when automatically turned on. The maintenance mechanism was adopted.
However, this structure consumes a large amount of power only to maintain the input state when viewed on the whole scale of an electric power company or the like. For this reason, in recent years, a structure in which the input state is maintained mechanically using a latch structure or the like has been adopted.
[0003]
For example, in the case of using a latch structure, it is important to adjust the gap of the latch portion, that is, the latch gap, in order to perform the operation smoothly and reliably. Conventionally, an apparatus for driving a movable contact or the like of a main contact apparatus has assembled each part in order in a sealed case at the time of manufacture. Therefore, the adjustment of the latch gap is also performed in the product state after assembling the parts.
Furthermore, in a main contact device having a structure in which a movable contact is provided on an insulating arm provided on the main shaft and the insulating arm is turned to turn on / off (on / off), the movable contact enters the fixed contact. This adjustment was performed by adjusting the position of the input solenoid device by loosening a tightening bolt or the like.
[0004]
[Problems to be solved by the invention]
However, the conventional gas switch as described above has the following problems.
In other words, since the adjustment of the latch gap was performed in the product state of the gas switch, it was restricted by the work place and the work posture of the worker, and it was difficult to work in a small case and the production efficiency was poor. It was. Further, in the manufacture of the gas switch, the method of assembling the parts in order in the enclosing case cannot perform efficient work for the same reason.
In addition, since the adjustment of the size of the movable contact to the fixed contact was adjusted by loosening the tightening bolt or the like to adjust the position of the input solenoid, the work was complicated and the efficiency was poor.
[0005]
(Object of the present invention)
An object of the present invention is to make it possible to efficiently manufacture a gas switch by unitizing a drive unit of the gas switch.
Another object of the present invention is to provide a gas switch capable of adjusting the latch gap of the latch mechanism that holds the closed state after being automatically turned on as a unit by incorporating the gas switch drive unit into a unit before being incorporated into the enclosing case. The drive unit and the gas switch are provided.
Another object of the present invention is to make it easy to adjust the size of the movable contact of the main contact device to the fixed contact.
[0006]
[Means for Solving the Problems]
  The means of the present invention taken to achieve the above object are as follows.
  In the first invention,
  It is built into the gas switch to turn on or open the main contact device,
A base member that can be mounted inside the enclosing case of the gas switch;
A first shaft provided on the base member;
A first arm rotatably provided on the first shaft and having a mechanism interlocked with the handle;
A toggle arm that is pivotally provided on the first shaft and has a latch body;
An urging body provided between the first arm and the tip of the toggle arm and having a pulling action;
A latch shaft provided on the base member;
A latch member that is rotatably provided on the latch shaft and has a latch portion that engages with a latch body of a toggle arm;
An interlocking member provided between the latch member and the first arm, and interlocking the latch member and the first arm;
A switching solenoid device for moving the latch member in a direction in which the latch is released;
A solenoid input device for automatically turning on the main contact device;
A second shaft that is rotated by the operation of the input solenoid device;
A second arm provided on the second shaft;
A connecting member provided between the tip of the second arm and the toggle arm;
One end side is attached to the toggle arm, and the other end side is a connecting member that can be attached to the tip of the main shaft arm provided on the main shaft of the main contact device;
WithIt is the drive part unit of the gas switch characterized by the above-mentioned.
[0007]
  In the second invention,
  The length of the connecting member provided between the second arm tip and the toggle arm is adjustable.It is characterized byAccording to the first inventionIt is a drive part unit of a gas switch.
[0008]
  In the third invention,
  The length of the connecting member provided between the spindle arm tip and the toggle arm is adjustable.It is characterized by
  1st or 2ndIt is a drive part unit of the gas switch which concerns on this invention.
[0009]
  In the fourth invention,
  An enclosing case enclosing an inert gas;
A main contact device having movable contact and fixed contact;
A drive unit according to the first, second or third invention;
It is provided with the gas switch.
[0013]
(Function)
According to the drive unit and the gas switch of the gas switch according to the present invention, each mechanism of the mechanism that automatically turns on the main contact device, the mechanism that automatically opens the main contact device, and the latch mechanism that maintains the automatically turned on state Are integrated (unitized) directly or indirectly into a member that can be mounted inside the enclosure of the gas switch. As a result, in the manufacture of a gas switch, a drive unit having a complicated structure and complicated dimensional adjustment can be manufactured as a single unit outside the enclosure case, etc. It is difficult to be restricted by the working posture, the manufacturing efficiency is improved, and as a result, the cost can be reduced.
[0014]
For the adjustable length of the connecting member provided between the tip of the second arm and the toggle arm, the reference position of the toggle arm having the latch body can be adjusted by adjusting the length of the connecting member, Moreover, since the latch member having the latch portion is also provided integrally with the toggle arm, the latch gap can be adjusted by a single unit before being incorporated into the enclosing case.
[0015]
If the length of the connecting member provided between the tip of the spindle arm and the toggle arm is adjustable, the angle of the spindle arm with respect to the position of the toggle arm can be adjusted by adjusting the length of the connecting member. Can do. Accordingly, the stroke between the movable contact and the fixed contact can be adjusted, and the entering dimension of the movable contact to the fixed contact when the main shaft is rotated and thrown in the throwing direction can be adjusted.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in more detail based on embodiments shown in the drawings.
FIG. 1 is an explanatory diagram showing an outline of the structure and operation of a gas switch according to the present invention,
FIG. 2 is an explanatory view of the drive unit viewed from the front side with the front plate of the gas switch removed, and FIG. 3 shows the internal structure of the gas switch and is a partial cross section of the drive unit viewed from the side. Illustration,
FIG. 4 is a cross-sectional explanatory diagram corresponding to the II portion in FIG.
FIG. 5 is an explanatory view of a cross section corresponding to the II-II portion in FIG.
6 is a cross-sectional explanatory view corresponding to the II-II portion in FIG.
FIG. 7 is an explanatory diagram viewed from the front side with a part of the front plate of the gas switch notched.
[0017]
In the present specification, the words “automatic” and “manual” given to the names of the constituent members are given for convenience of explanation to those operating mainly during automatic operation and manual operation, respectively. In some cases, it may move freely and does not include any limiting meaning.
In addition, the notation of the outside of the internal mechanism and the external mechanism is given for convenience of explanation and is not a strict meaning. For example, a part of the external mechanism may be inside, and the structure may not necessarily match. is there.
[0018]
Reference symbol A denotes a gas switch, which includes an enclosing case 1, a drive unit 2, and a main contact device 3 (not shown in FIG. 3, but shown in FIGS. 5 and 6).₆It is a structure that encloses gas.
The enclosing case 1 includes a cylindrical case main body 10 having a nine-sided cross section, a front plate 11 (shown in FIGS. 3 and 7) that is airtightly fixed to front and rear openings of the case main body 10, and a rear A plate 12 (shown in FIGS. 5 and 6) is provided.
The front plate 11 is provided with a reinforcing portion 13 that is slightly protruded to the front surface side and is press-molded. A bearing housing 14 is provided through the central portion of the reinforcing portion 13.
[0019]
Bearing pipes 15 are provided at front and rear end portions on the inner side of the bearing housing 14. A handle shaft 40 is rotatably inserted into the bearing tube 15 in an airtight state through O-rings 41 arranged in parallel at three locations. An elongated plate-like handle 42 is provided at the front end (outer end) of the handle shaft 40 with the center portion fixed.
A handle arm 43 is provided at the rear end (inner end) of the handle shaft 40. An engagement hole 44 through which an engagement pin 230 described later is inserted is provided at the tip of the handle arm 43.
In addition, the handle | steering-wheel 42 incorporated in the front board 11 and its incidental mechanism comprise the external mechanism.
[0020]
The drive unit 2 is attached slightly behind the front plate 11 in the enclosing case 1. The drive unit 2 constitutes an internal mechanism, and includes a unit board 20, a latch mechanism including a latch plate 24, an on solenoid device 27, an off solenoid device 28, and the like. The unit substrate 20 is fixed at four locations by bolts and nuts 200 to a unit mounting plate 16 that protrudes inward over the entire circumference of the inner wall of the case body 10.
[0021]
A latch shaft 201 is provided at a central portion on the upper side of the unit substrate 20 so as to protrude in the direction perpendicular to the unit substrate 20 and to be rotatable in the axial direction. In addition, a manual shaft 202 that is a first shaft protrudes in a direction perpendicular to the unit substrate 20 slightly to the left of the lower side of the unit substrate 20. On the front side of the unit substrate 20, the unit pressing plate 21 is fixed in parallel with the unit substrate 20 by bolts (with spacers) provided at four locations. Further, the tip ends of the latch shaft 201 and the manual shaft 202 are also inserted through the unit presser plate 21 and fixed.
The shape of the unit pressing plate 21 is as shown in FIG. 2, and an insertion port 210 is provided on the upper side so that a toggle pin 221 described later can be inserted and moved.
[0022]
Please refer to FIG.
Between the unit substrate 20 and the unit pressing plate 21, a toggle arm 22, a manual arm 23, a latch plate 24, and the like are provided.
The toggle arm 22 has a tubular toggle shaft 220 on the lower side. The toggle arm 22 is rotatably mounted by fitting the toggle shaft 220 to the manual shaft 202 with a bearing 225 interposed therebetween.
A toggle pin 221 is provided perpendicular to the toggle arm 22 at the tip of the toggle arm 22 and protrudes through the insertion opening 210 of the unit pressing plate 21. A latch roller 222 is rotatably attached to the base side of the toggle pin 221.
[0023]
Mounting pins 223 and 224 are juxtaposed at a required interval in the substantially middle part of the toggle arm 22. One end of the connecting rod 25 is pivotally attached to the toggle arm 22 via one mounting pin 223, and one end of the connecting rod 25a is pivotable via the other mounting pin 224. It is attached to.
Each of the connecting rods 25 and 25a includes a rod 250 and a screw member 251 screwed into a screw hole (female screw structure: not shown) of the rod 250, and the rod 250 or the screw member 251 is rotated to advance and retract. Thus, the length can be adjusted.
Note that the other end of the connecting rod 25 is attached to a spindle arm 32 that operates a movable contact of a main contact device 3 to be described later by a mounting pin 252 so as to be rotatable. The other end of the connecting rod 25a is attached to an automatic arm 275, which will be described later, by a mounting pin 253 so as to be rotatable.
[0024]
The manual arm 23 which is the first arm is attached to the manual shaft 202 so that the base side can be rotated. The manual arm 23 rotates in parallel with the toggle arm 22. The distal end side of the manual arm 23 extends downward from the lower side of the unit pressing plate 21. An engaging pin 230 is provided at the tip of the manual arm 23 so as to protrude forward from the unit presser plate 21 perpendicularly to the manual arm 23. One end of an interlocking plate 246, which will be described later, is attached to the side of the manual arm 23 near the base so as to be rotatable by a pin.
Spring engaging portions (reference numerals omitted) having a small diameter are provided at corresponding portions of the engaging pin 230 and the toggle pin 221, and a spring (tensile coil spring) 26 is hung between the spring engaging portions. Further, the engagement pin 230 is inserted through the engagement hole 44 of the handle arm 43 as described above (see FIG. 3).
[0025]
Note that the rotation ranges of the toggle arm 22 and the manual arm 23 that are rotated by the action of the spring 26 are limited. That is, the toggle arm 22 is limited by the movable range of the spindle arm and the automatic arm 275 connected by the connecting rods 25 and 25a. Further, the manual arm 23 is restricted by hitting the lower left and right bolt seats B1 and B2 among the four bolt seats that fix the unit presser plate 21 to the unit substrate 20 in cooperation with the bolts. 2 are bolts combined with the bolt seats B1 and B2, respectively.
[0026]
The latch plate 24 includes a latch substrate 240 and an operation plate 241 fixed to the front of the latch substrate 240 with a slight gap. The latch substrate 240 and the operation plate 241 are fixed to the latch shaft 201 and can be rotated together with the latch shaft 201.
A latch portion 242 is provided below one end portion of the latch substrate 240. A long hole-shaped guide hole 243 extends downward from the other end of the latch substrate 240.
[0027]
A slide pin 244 passes through the distal end side of the operating plate 241. Further, a slide pin 245 is provided at a substantially middle portion of the operating plate 241 so as to protrude rearward. An engagement long hole 247 provided on the other end side of the interlocking plate 246 is engaged with the slide pin 245. As described above, one end side of the interlocking plate 246 is attached to the side portion near the base portion of the manual arm 23 so as to be rotatable with a pin.
[0028]
The engagement slot 247 is for shifting the timing of the start of movement of the manual arm 23 and the start of movement of the latch plate 24. The timing will be described later.
Reference numeral 248 denotes a pulling tool for preventing malfunction of the latch plate 24 by pulling the latch plate 24 to give an appropriate resistance to the latch plate 24, and has a tension spring 248b on the base side. On the part side, there is an engagement roller 248a (shown in FIG. 11). The engagement roller 248 a is movably engaged with the guide hole 243 of the latch substrate 240, and the end of the tension spring is hung on the pin 203.
[0029]
A cutting solenoid device 28 (shown in FIG. 2) is provided on the front side of the unit pressing plate 21. The cutting solenoid device 28 includes a coil 280 fixed to the lower right side of the unit pressing plate 21 with a screw. A fixed iron core 284 (see FIG. 1) is provided on one end side inside the coil 280. A movable iron core 281 is slidably accommodated inside the coil 280. One end of a cutting lever 282 is rotatably attached to the end of the movable iron core 281.
[0030]
The cut lever 282 is provided with a guide hole 283 over almost the entire length. The guide hole 283 is fitted into the slide pin 244 of the latch plate 24 so as not to be removed by the split pin. The slide pin 244 can slide along the guide hole 283.
Thereby, when the movable iron core 281 is attracted by the coil 280, the operation plate 241 is pulled, the latch plate 24 is rotated, and the engagement between the latch portion 242 and the latch roller 222 is released.
[0031]
An input solenoid device 27 is provided on the rear surface side of the unit substrate 20. The input solenoid device 27 includes a coil 270 fixed to the unit substrate 20. An iron core guide 270a is provided inside the coil 270, and a movable iron core 271 is movably accommodated inside the iron core guide 270a. A fixed iron core 271a (see FIG. 1) is provided on one end side of the iron core guide 270a.
On the other hand, the unit substrate 20 is provided with an automatic housing 272 penetrating forward and backward. An automatic shaft 273 that is a second shaft is rotatably inserted into the automatic housing 272 via a bearing 274.
[0032]
The automatic arm 275, which is the second arm, is fixed to the front end of the automatic shaft 273, and the other end of the connecting rod 25a (on the screw member 251 side) is attached to the tip of the automatic shaft 273 by the mounting pin 253 as described above. ) Is pivotally attached.
An interlocking arm 276 is fixed to the rear end portion of the automatic shaft 273, and one end portion of the link member 278 is rotatably attached to the front end portion thereof by a mounting pin 277. The part is attached to the end of the movable iron core 271 by a mounting pin 279 so as to be rotatable.
Thereby, when the movable iron core 271 is attracted by the coil 270, the automatic shaft 273 rotates, the toggle arm 22 is rotated by the connecting rod 25a, and the main shaft 30 described later is further rotated by the connecting rod 25.
[0033]
Please refer to FIG. 5 and FIG.
The main contact device 3 is provided on the further rear side of the input solenoid device 27.
The main contact device 3 includes a main shaft 30 provided at the lower left portion when viewed from the front. The main shaft 30 is pivotally supported by a bearing 31 and is provided over the entire length in the longitudinal direction of the enclosing case 1.
A main shaft arm 32 is fixed to the front end portion of the main shaft 30. As described above, the other end portion (screw member 251 side) of the connecting rod 25 is rotatably attached to the distal end portion of the spindle arm 32 by the attachment pin 252.
[0034]
Insulating arms 33 are fixed to the main shaft 30 at three equal intervals and at the same angle. A movable contact 34 is provided at the tip of each insulating arm 33 so as to protrude perpendicularly to the insulating arm 33 to both sides.
Further, three pairs of bushings 35, 35 a are attached to the side wall portion of the enclosing case 1 at positions corresponding to the movable contacts 34. A terminal 36 is inserted and fixed to each bushing 35. A terminal 36a is inserted and fixed in each other bushing 35a. An arc extinguishing chamber 37 into which the tip of the movable contact 34 is inserted is provided on the inner side of each terminal 36. Each arc extinguishing chamber 37 is provided with a fixed contact 370, and each fixed contact 370 is provided with a movable spring 34 and a contact spring 371 for applying contact pressure. And the flexible conductor 38 is attached between the base end part of each movable contact 34, and the inner side of each terminal 36a.
[0035]
(Work)
FIG. 8 is an explanatory view seen from the front side showing the automatic engagement state of the drive unit,
FIG. 9 is an explanatory view seen from the front side showing the latched state of the drive unit,
FIG. 10 is an explanatory view seen from the front side showing the cut state of the drive unit,
FIG. 11 is an explanatory view seen from the front side showing a manual engagement state of the drive unit. 8 to 11, the unit pressing plate shown in FIG. 2 is omitted for convenience.
With reference to FIG. 1 thru | or FIG. 11, the effect | action of the gas switch which concerns on this Embodiment is demonstrated.
[0036]
1. Automatic operation
(Automatic input operation: Refer mainly to FIGS. 4, 8, and 10)
When the toggle arm 22 is in the cut position and the handle 42 is in the automatic position (the state shown in FIG. 10), the coil 270 of the input solenoid device 27 is excited by the closing output, and the movable iron core 271 is attracted to the coil 270. At the same time, the interlocking arm 276 rotates the automatic shaft 273 counterclockwise and rotates the toggle arm 22 counterclockwise via the automatic arm 275 and the connecting rod 25a. At this time, the latch roller 222 of the toggle arm 22 moves so as to push up the latch substrate 240 while coming into contact with the lower edge portion of the latch substrate 240 of the latch plate 24, and exceeds the latch portion 242. At the same time, the force is transmitted to the spindle arm 32 through the connecting rod 25 by the rotation of the toggle arm 22, and the spindle 30 is rotated counterclockwise, so that the movable contact 34 comes into contact with the fixed contact 370 and is automatically turned on. Become.
At this time, since the toggle arm 22 is in the on position and the handle 42 is in the automatic position, the spring 26 acts as an open spring and is prepared for an automatic cutting operation.
[0037]
(Latch state: Refer mainly to FIGS. 8 and 9)
If the closing output is lost in the automatic turning-on state, the excitation of the coil 270 of the turning-on solenoid device 27 is released, and the toggle arm 22 tries to rotate clockwise by the pulling force (opening force) of the spring 26. The latch roller 222 attached to 22 is latched by the latch portion 242 of the latch plate 24 to be in a latched state.
Note that the gap (latch gap) G between the latch roller 222 and the latch portion 242 in the automatic insertion state (the state of FIG. 8) is an important dimension for shifting from the automatic insertion state to the latching state. Requires adjustment. In the drive unit 2 according to the present embodiment, the unit unit (before being incorporated into the enclosing case 1) is performed by rotating the screw member 251 of the connecting rod 25a and adjusting the length of the connecting rod 25a. Easy to adjust.
[0038]
(Automatic cutting operation: Refer mainly to Fig. 10)
In the latched state (the state shown in FIG. 9), the coil 280 of the switching solenoid device 28 is excited by the switching output, and the movable iron core 281 is attracted to the coil 280. At the same time, the cut lever 282 and the operation plate 241 are interlocked, and the latch plate 24 rotates clockwise about the latch shaft 201, and the latch roller 222 of the toggle arm 22 and the latch portion 242 of the latch plate 24 are released from being locked. The As a result, the pulling force (opening force) of the spring 26 rotates the toggle arm 22 in the clockwise direction, and the opening force is transmitted to the main shaft arm 32 via the connecting rod 25 to rotate the main shaft 30 clockwise. As a result, the movable contact 34 is separated from the fixed contact 370 and is automatically turned off (state shown in FIG. 10).
[0039]
2. Manual operation
(Manual input operation: Refer mainly to Fig. 11)
When the toggle arm 22 is in the cut position and the handle 42 is in the automatic position (the state shown in FIG. 10), when the handle 42 is operated and the manual arm 23 is rotated clockwise, the spring 26 reaches the dead point when the handle is turned on. Acts as an opening spring, and acts as a closing spring after the dead point when the handle is turned on, so that the toggle arm 22 instantly rotates to the turned position.
As a result, the throwing force of the spring 26 is transmitted to the main shaft arm 32 through the connecting rod 25, and the main shaft 30 is rotated manually counterclockwise (the state shown in FIG. 11). Note that the adjustment of the size of the movable contact 34 to the fixed contact 370 is performed by adjusting the length of the connecting rod 25.
[0040]
(Manual switching operation)
When the handle 42 is operated from the manually engaged state (the state shown in FIG. 11) and the manual arm 23 is rotated counterclockwise, the spring 26 acts as a closing spring until the dead point when the handle is turned off, and the dead when the handle is turned off. When the point is passed, the toggle arm 22 instantaneously rotates to the cutting position because it acts as an opening spring.
As a result, the pulling force (opening force) of the spring 26 is transmitted to the main shaft arm 32 through the connecting rod 25, and the main shaft 30 is rotated clockwise to be manually turned off.
[0041]
Note that the terms and expressions used in the present specification are merely explanatory and not restrictive, and do not exclude terms and expressions equivalent to the above terms and expressions. The present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the technical idea.
[0042]
【The invention's effect】
(A) According to the drive unit and the gas switch of the gas switch according to the present invention, a mechanism for automatically turning on the main contact device, a mechanism for automatically opening the main contact device, and a latch mechanism for maintaining the automatically turned on state These mechanisms are integrated (unitized) directly or indirectly with a member that can be mounted inside the enclosure of the gas switch. As a result, in the manufacture of a gas switch, a drive unit having a complicated structure and complicated dimensional adjustment can be manufactured as a single unit outside the enclosure case, etc. It is difficult to be restricted by the working posture, the manufacturing efficiency is improved, and as a result, the cost can be reduced.
[0043]
(B) If the length of the connecting member provided between the tip of the automatic arm and the toggle arm is adjustable, the reference position of the toggle arm having the latch body can be adjusted by adjusting the length of the connecting member. In addition, since the latch member having the latch portion is also provided integrally with the toggle arm, the latch gap can be adjusted by a single unit before being incorporated into the enclosing case.
As a result, when manufacturing a gas switch, it is only necessary to attach a unit that has been prepared in advance in an easy-to-operate place and working posture to the enclosing case, so that the manufacturing process can be streamlined and consequently the manufacturing cost can be reduced. it can.
[0044]
(C) If the length of the connecting member provided between the tip of the spindle arm and the toggle arm is adjustable, the angle of the spindle arm with respect to the position of the toggle arm can be adjusted by adjusting the length of the connecting member. Can be adjusted.
As a result, the stroke between the movable contact and the fixed contact can be adjusted, and the insertion dimension of the movable contact to the fixed contact when the main shaft rotates in the insertion direction can be adjusted, so that the input operation can be performed more reliably. .
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an outline of the structure and operation of a gas switch according to the present invention.
FIG. 2 is an explanatory view of the drive unit viewed from the front side with the front plate of the gas switch removed.
FIG. 3 is a partial cross-sectional explanatory view showing the internal structure of the gas switch and viewing the drive unit from the side surface side.
FIG. 4 is a cross-sectional explanatory view showing the structure of a solenoid constituting the drive unit and corresponding to the II portion in FIG. 3;
FIG. 5 is a cross-sectional explanatory view showing the main contact state of the gas switch and corresponding to the II-II portion in FIG. 3;
6 is a cross-sectional explanatory view showing a main contact cut state of the gas switch, corresponding to a II-II portion in FIG. 3;
FIG. 7 is an explanatory diagram viewed from the front side, with a part of the front plate of the gas switch notched.
FIG. 8 is an explanatory diagram viewed from the front side showing an automatic insertion state of the drive unit.
FIG. 9 is an explanatory diagram viewed from the front side showing a latched state of the drive unit.
FIG. 10 is an explanatory diagram viewed from the front side showing a cut state of the drive unit.
FIG. 11 is an explanatory view seen from the front side showing a manual engagement state of the drive unit.
[Explanation of symbols]
A gas switch
1 Enclosure case
10 Case body
11 Front plate
12 Rear plate
13 Reinforcing part
14 Bearing housing
15 Bearing pipe
16 Unit mounting plate
2 Drive unit
20 Unit board
200 Bolts and nuts
201 Latch shaft
202 Manual axis
21 Unit holding plate
210 insertion port
22 Toggle arm
220 Toggle shaft
225 bearing
221 Toggle pin
222 Latch roller
223, 224 mounting pin
23 Manual arm
230 engaging pin
B1, B2 bolt seat
B10, B20 bolt
24 Latch plate
240 Latch board
241 Actuation plate
242 Latch part
243 Guide hole
244 Slide pin
245 slide pin
246 Interlocking plate
247 engagement slot
248 Tensioner
248a Engagement roller
248b tension spring
203 pins
25, 25a Connecting rod
250 rods
251 Screw member
252 and 253 mounting pins
26 Spring
27 Solenoid device
270 coil
270a Iron core guide
271 Movable iron core
272 Automatic housing
273 Automatic axis
274 Bearing
275 Automatic arm
276 Interlocking arm
277 Mounting pin
278 Link member
279 Mounting pin
28 cutting solenoid device
280 coil
281 Movable iron core
282 Lever
283 Guide hole
284 Fixed iron core
3 Main contact device
30 spindle
31 Bearing
32 Spindle arm
33 Insulation arm
34 Movable contact
35, 35a Bushing
36, 36a terminal
37 Arc extinguishing chamber
370 Fixed contact
371 Contact spring
38 Flexible conductor
40 Handle shaft
41 O-ring
42 Handle
43 Handle arm
44 engagement hole

Claims (4)

It is built into the gas switch to turn on or open the main contact device,
A base member that can be mounted inside the enclosing case of the gas switch;
A first shaft provided on the base member;
A first arm rotatably provided on the first shaft and having a mechanism interlocked with the handle;
A toggle arm that is pivotally provided on the first shaft and has a latch body;
An urging body provided between the first arm and the tip of the toggle arm and having a pulling action;
A latch shaft provided on the base member;
A latch member that is rotatably provided on the latch shaft and has a latch portion that engages with a latch body of a toggle arm;
An interlocking member provided between the latch member and the first arm, and interlocking the latch member and the first arm;
A switching solenoid device for moving the latch member in a direction in which the latch is released;
A solenoid input device for automatically turning on the main contact device;
A second shaft that is rotated by the operation of the input solenoid device;
A second arm provided on the second shaft;
A connecting member provided between the tip of the second arm and the toggle arm;
One end side is attached to the toggle arm, and the other end side is a connecting member that can be attached to the tip of the main shaft arm provided on the main shaft of the main contact device;
It is characterized by having,
Gas switch drive unit. The length of the connecting member provided between the second arm tip and the toggle arm is adjustable,
The drive part unit of the gas switch of Claim 1 . The length of the connecting member provided between the spindle arm tip and the toggle arm is adjustable,
The drive part unit of the gas switch of Claim 1 or 2 . An enclosing case enclosing an inert gas;
A main contact device having movable contact and fixed contact;
The drive unit according to claim 1, 2, or 3 ,
It is characterized by having,
Gas switch.

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