JPH0241805Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to an improved structure of a vertical single-point disconnect switch that opens and closes a circuit by the up-and-down motion of a blade rotating in a vertical plane.

[Prior art]

The blade in the vertical single point cutting path device is supported by the operating mechanism, and the operating mechanism is driven by the operating device to convert the rotational force of the operating insulator in the horizontal plane into the rotational force in the vertical plane. The blade is caused to move up and down so as to be rotatable in a plane. However, the above-mentioned operating mechanism is generally composed of cams and gears, resulting in a complex structure and large size.In addition, the operating mechanism has a contact on the hinge side separately from the operating mechanism, and the distance between poles is large. Because of this, it had the disadvantage of being large.

[Summary of the idea]

The present invention has been made to eliminate the above-mentioned drawbacks, and aims to provide a vertical single-point disconnection device having a very simple structure and operating mechanism.

[Example of idea]

Embodiments of the present invention will be described below based on the drawings. As shown in FIG.
It is mounted on a frame 5 supported by one support insulator 3 erected at the upper end of a base 1 fixed on a mount 2. The structure of section A, which mainly includes the operating mechanism section 6, is as shown in FIG.
The undulation center point P is located on the rotation center line Q of the operating insulator 4, and the undulation center point P can be freely rotated in a vertical plane.

That is, the base end of the blade 8 is supported by two blade support plates 18, 18a fixed to the frame 5 above the operating insulator 4 via a center pin 17 fixed to the blade 5.

Further, the operating insulator 4 has a shaft 11 fixed to the tip thereof.
is pivotally supported by a frame 5 via an insulated bearing 10, and an operating lever 12 is fixed to the tip of a shaft 11 so as to rotate within a horizontal plane. A stud 13 with a freely rotating slide bearing 16 is fixed to the tip of the operating lever 12, and a through pin 15 passing through the stud 13 and a fixed pin 9 fixed to the blade 8 are connected by a link 14. combined. In addition, the blade 8 and the support plate 1
A balance spring 19 is installed between the 8 and 18a. 20 is a conductive plate.

Next, the operation of the above embodiment will be explained. In FIG. 2, when the operating insulator 4 of the vertical single-point disconnection device in the closed state is actuated, the operating lever 1
2 rotates 90 degrees around the rotation center line Q of the operating insulator 4 in a horizontal plane integrally with the operating insulator 4. Third
As the operating lever 12 shown in the figure rotates, the swivel stud 1 is fixed to the tip of the operating lever 12.
3 moves from the R ₁ position to the R ₂ position. The penetrating pin 15 passing through the swivel stud 13 moves in parallel from the S ₁ position to the S ₂ position as the swivel stud 13 moves. At this time, the swivel stud 13 moves in parallel on the through pin 15 while rotating at the fixed portion of the operating lever 12 by the built-in bearing 16. The through pin 15 and the fixed pin 9 fixed to the blade 8 are connected by a link 14, and as the through pin 15 moves, the link 14 is pulled and the fixed pin 9 connected to the link 14 moves to the undulation center point P. centered around
It rotates 90 degrees and moves from position T ₁ to position T ₂ , and at the same time raises the blade 8 in the vertical plane to complete the opening operation. When opened, the blade 8 operates smoothly due to the action of the spring 19 which balances the weight of the blade 8.

Next, when the operating insulator 4 of the vertical single-point disconnection device in the open state is actuated, the operating lever 12 starts rotating counterclockwise, and at the same time, the through pin 15 moves, and the link 14 connected to the through pin is moved. The fixing pin 9 fixed to the blade 8 is pushed and the blade rotates around the undulation center point P, completing the loading operation.

[Effect of idea]

As described above, this invention does not use cams or gears in the operation part as in the past, so it has excellent effects such as making the disconnector smaller and operating smoothly. It is.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of this invention, Fig. 2 is a front view showing an enlarged operation section thereof, and Fig. 3 is a plan view taken from the direction of the - line arrow in Fig. 2. . In the figure, 1 is the base, 2 is the pedestal, 3 is the support insulator,
4 is an operating insulator, 5 is a frame, 6 is an operating mechanism, 7
is a contact part, 8 is a blade, 9 is a fixed pin, 10 is an insulated bearing, 11 is a shaft, 12 is an operating lever,
13 is a stud, 14 is a link, 15 is a through pin, 16 is a slide bearing, 17 is a center pin, 18 and 18a are support plates, 19 is a spring,
20 is a conductive plate.

Claims (1)

[Scope of utility model registration request] A disconnector that opens and closes a circuit by making a blade that is pivoted above an operating insulator and can freely rotate in a vertical plane move up and down as the operating insulator rotates in a horizontal plane, A shaft fixed to the upper end of the operating insulator, an operating lever with one end fixed to the end of this shaft, a stud with a freely rotating slide bearing provided at the other end of this operating lever, and a stud passing through this stud. a through pin which is provided as a through pin and moves in parallel by the action of the stud when the operating lever is rotated;
and a link having one end coupled to the pin and the other end coupled to a fixed pin provided at the upright drive end of the blade.