JPS6223006Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a vacuum switch and disconnector, for example, and more specifically, a system that uses a fluid pressure mechanism that uses air to load, shut, and shut off. The present invention relates to a disconnector that can be operated to disconnect.

PRIOR TECHNOLOGY This type of breaker is generally
As shown in the figure, an appropriate number of breakers 1 are installed on a frame 2 horizontally suspended on a plurality of mounting legs 6 and 7, and compressed air from a compressed air tank 3 is controlled by a control device (such as a solenoid valve). The vacuum interrupter 5 is configured to be turned on and off by guiding the vacuum interrupter 5 through a piping (not shown) provided in the frame 2 to a winding switch operating section 13 consisting of an air operation cylinder. There is.

Problems to be solved by the invention In the conventional cutter with the above configuration,
The structure of the air tank 3 had the following drawbacks. That is, when it is desired to increase the capacity of the air tank 3 due to changes in the operating conditions of the breaker, the design of the air tank 3 itself has to be changed and remanufactured to increase its capacity. For this reason, standardization of the air tank 3 cannot be achieved, and the production time becomes long due to design changes, etc., making it expensive.

This invention was developed in view of the above-mentioned drawbacks of the prior art, and by using the legs of the cutter as an air tank, it satisfies the requirements without changing the design of the air tank as in the past. The purpose of this project is to provide an insulator and disconnector that can be used.

Means for Solving the Problems The present invention has a breaker operating section, and the contacts are closed and closed by compressed air supplied from an air tank to the breaker operating section. The disconnector is installed upright on a support frame, and the support frame is supported via an appropriate number of legs. It is characterized by the fact that it has been formed.

Function: Since the legs and support frame have air tanks inside, the compressed air stored in these air tanks can be used to close and break the breaker contacts.

Embodiment Hereinafter, an embodiment of this invention will be described in detail using the drawings from FIG. 3 onwards.

3 to 5 show the first embodiment. In each figure, 8, 9, 10 are horizontal support frames 1
By operating the electrode (not shown) that is detachably attached to the vacuum interrupter (VI) 12 with a vacuum interrupter installed vertically in the vacuum interrupter (VI) 12,
It is a cutting operation. Reference numeral 13 denotes an operating position for operating the electrodes in contact with and separating them from each other, and an operating piston (not shown) interlocked with a movable electrode portion of the electrode is housed therein so as to be able to move up and down.

Numerals 18 and 19 are legs for supporting the support frame 11, and an appropriate number (two in this embodiment) are provided. The legs 18, 19 are hollow as shown in FIG. 5, for example, and the hollow portion 20 is formed in a sealed structure. That is, a contact plate 22 having a hole 21 is provided at the joint between the legs 18 and 19 and the support frame 11.
is hermetically closed via a packing 23, a cover plate 24, and a fastener 25. Also, legs 18 and 19
At the bottom of the is a mounting seat 27 for fixing to the foundation 26.
is fixedly installed.

The hollow portions 20 of the legs 18, 19 are hermetically closed by a partition plate 28 and a cover plate 24, as shown in FIG. 29 is a drain valve attached to the lower outer wall of the legs 18 and 19, and is connected to the hollow part 2 through the pipe 30.
It is provided in communication with the inside of 0. Also, 31 is the pipe 3
This is a window provided with legs 18 and 19 to allow 0 to pass through.

Hollow portions 20 within the legs 18, 19 are provided with pipes 32, 33, 34, 35, as shown in FIG.
The hollow portion 20 forms a so-called air tank. That is, the legs 18 and 19 also serve as an air tank. In this embodiment, the hollow portions 20 on both sides of the two illustrated legs 18 and 19 are used as air tanks, but only one leg can be used as an air tank. Of course. Further, it is desirable that the control device 14 and the hollow portion 20 be communicated through a suitable switching valve.

Reference numeral 14 denotes a control device comprising a compressor for raising and lowering the operation piston, a solenoid valve for controlling the supply of compressed air, and the like. Control device 1
4 is connected to the operating device 1 via piping 15, 16, 17.
It is provided in communication with a cylinder chamber (not shown) that accommodates the operation piston of No. 3. That is, the compressed air sent under pressure from the control device 14 is transferred to the pipes 15 and 1.
6 and 17 to the cylinder chamber, the operation piston is moved up and down, and the electrodes in VI can be turned on and off.

According to the first embodiment, the mounting legs 18 and 19 of the shingle breaker can be used as an air tank, making it possible to eliminate the need for an air tank as in the prior art. Of course, the conventional air tank and the air tanks of the mounting legs 18 and 19 may be used together, and even in that case, the capacity of the conventional air tank may be small. In other words, the insufficient capacity of the conventional air tank can be supplemented with the air tanks of the mounting legs 18 and 19.

6 to 8 show a second embodiment. The second embodiment shows an example in which both the support frame 11 and the mounting legs 18, 19 are configured as air tanks. That is, in this case, as shown in FIG. 8, for example, the support frame 11 is constituted by a relatively thin tube member, and the hollow portion 36 thereof is of a sealed structure.
The connection between the support frame 11 and the mounting legs 18 and 19 is, for example, as shown in FIG.
is fixed, while the upper ends of the legs 18 and 19 are
The mounting flange 37 and the corresponding mounting flange 39 are fixed and connected to each other by fixing the flanges 37 and 39 via a fastener 40. The short pipe 38 is fitted into a hole 41 provided in the support frame 11, and the hollow part 36 and the short pipe 38
It is configured to communicate with the hollow portion 42 of. Further, the hollow portion 42 of the short tube 38 is provided in communication with the hollow portion 20 of the legs 18, 19 through holes 43, 44 provided in the mounting flanges 37, 39.
The drain valve 29 is directly attached to the intermediate partition plate 28, and the window 31 is also attached to the adjustment handle 4 of the drain valve 29.
5 is made large so that it can be easily operated.

According to the configuration of the second embodiment, since the support frame 11 and its mounting legs 18 and 19 also serve as an air tank, the tank capacity is significantly increased.
There is no need to attach a separate air tank.

Effects of the device As described above, this device configures the support frame that supports the cutter and the mounting legs of the support frame as an air tank, which eliminates the need for the conventional air tank as a separate component. In addition, it can also be used in combination with a conventional air tank, and in this case, even if the capacity of the conventional air tank alone is small, the capacity of the air tank as a whole can be increased.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the prior art of the shield disconnector according to this invention, Figures 3 and 4 are front and side views, respectively, and Figure 5 of the shield disconnector according to this invention. 6 and 7 are front and side views showing other embodiments of the invention, and FIG. 8 is a sectional view of the main parts thereof. 11... Support frame, 18, 19... Legs, 2
0,36...Hollow part.

Claims (1)

[Scope of utility model registration request] A shield breaker, which has a shield breaker operating section and whose contacts are closed and closed by compressed air supplied from an air tank to the shield breaker operating section, is erected on the support frame 11. , the support frame 11
is supported through an appropriate number of legs 18, 19, and the interior of one or both of the legs 18, 19 and the support frame 11 is formed as a sealed air tank. Shiya disconnector.