JPS58115321A - Display valve for overcurrent passage display - Google Patents

Abstract

PURPOSE:To effectively remove a colored fluid stayed on the lower part of a valve body at the time of fall due to empty weight, by constituting the valve body so that the lower surface of the valve body is thickened at its central part and gradually thined in the external peripheral direction to increase the central part in weight. CONSTITUTION:The lower surface of the valve body 31 of a display is constituted so as to be thickened at its central part and thined gradually in the external peripheral direction to increase the central part in weight. Said configuration enables the valve body 31 to effectively remove a colored fluid 29 stayed on the lower part of the valve body 31 at the time of fall due to empty weight and also the valve body 31 to fall under extremely stable state, providing a superior effect that delayed fall time can be fixed.

Description

[Detailed Description of the Invention] Technical field This invention is a method for detecting ground faults, short circuits, etc. in power distribution lines.In order to quickly discover the fault, the present invention is designed to prevent overcurrent caused by accidents from passing through the power line by directly hanging it on the power line. This is related to the display valve of the overcurrent passage display device that displays all of the above when the overcurrent has passed.

Prior Art The applicant of the present invention has already developed an overcurrent passage display device in which a colored light material with a low specific gravity and a transparent material with a high specific gravity are separated into upper and lower layers with a viscous substance such as oil in the display tube. We are proposing a system that stores the fluid and installs an indicator valve that can move up and down in the same fluid.

The display valve was normally placed entirely in a transparent barrel so that it could be clearly seen through the display window provided at the bottom of the display tube. In addition, when overcurrent flows, the indicator valve is pulled up into the colored fluid through the display drive unit that is detected by the current detector, and the colored fluid is visualized through the display window to display an overcurrent passage indication. Afterwards, it was brought back down by its own weight while resisting the viscous resistance of the fluid.

OBJECTS OF THE INVENTION An object of the present invention is to provide an indicator valve for an overcurrent passage indicator that can effectively remove all of the colored fluid above the indicator valve when the indicator valve lowers under its own weight, and can lower at a constant rate.

Examples In the following, Figures 1 to 12 show the side of Ichifuo that embodies this invention.
This will be explained according to the diagram.

This overcurrent passage display device can be roughly divided into a current detection section B that detects all overcurrents, and a drive mechanism B that is driven by the detection section.
, a lifting mechanism ■ that is lifted by the drive mechanism B, and a display device ■ that is operated by the lifting mechanism H.
It is composed of.

First, the current detection section A will be explained. This detection section controls the detection current transformer CT attached to the wire and the transform current generated in the transformer aweT when an overcurrent flows through the wire. It is composed of a control circuit C that drives a rotary solenoid R812.

Next, the drive mechanism B will be explained.

The rotary solenoid R8 has a structure in which the output shaft is driven to rotate when it is energized, and when the excitation is released, the output shaft is rotated back to its original position by a built-in return spring S as an energy storage member.

Reference numeral 1 shown in FIGS. 1 and 2 is a frame suspended from the lower part of the wire holding part (not shown), and ◇2 is fixed to the output shaft of the rotary solenoid R8. The disk-shaped drive plate, 3 is 1ilK! I
An operating claw 4, which is an operating member attached to the outer periphery of the Ell plate 2 and extends outward, is formed in a protruding manner.

Punishment rotary solenoid R8, drive plate 2, operating member 3
A drive mechanism B is constructed by the following.

Next, the lifting mechanism H will be explained.

Reference numeral 5 denotes the rotary solenoid R8 in the frame body 1 [support plate portions standing vertically so as to intersect with each other, and 6 refers to a hanging arm of the support plate portion 5 having a base end and a shaft attached so as to be freely rotatable in both directions. This member is located diagonally above the rotary solenoid R8 (in the direction VcP=b in FIG. 4). Note that the lifting member 6 is locked by a stopper portion 1a provided at the lower part of the frame body 1 in the normal state. The distal end of the lifting member 6 is provided with a guide hole 8 passing through both the upper and lower surfaces, and the proximal end is formed with a protrusion 9, and a slit (not shown) is provided in the center above the shaft 7. A kite protrusion 10 is provided in a protruding manner.

The proximal end of 11 is engaged with the engagement protrusion 9, and the kite protrusion 1
It is a string-like member that is inserted into the kite hole 8 through the slit 0 and extends downward. Note that the string-like member 11 in the slit of the locking projection 9 and the guide projection 10 is fixed with adhesive.

Reference numeral 12 denotes a through hole formed through the proximal side of the lifting member 6.

13 is a lifting member 6 as shown in FIGS. 3 and 4.
Insert screw 1 on the opposite side of rotary solenoid R8.
4 elastic locking members, the central part of which goes around the upper part of the lifting member 6 and connects the rotary solenoid R8i [bent so as to protrude obliquely downward, and its tip part is horizontal. It is bent at an acute angle toward the lifting member 6 and projects into the 12-circular through hole. When the actuating member 3 rotates from above, the oblique portion 11 of the locking member 13 is pressed against the actuating claw 4 of the actuating member 3 against its own elastic force, thereby lifting the member. 6 side, and the lower surface 16 of the distal end of the locking member 13 can be engaged with and detached from the actuating claw 4.

The lifting member 6, the string member 11, and the locking member 13 constitute a lifting mechanism H.

Next, the display device H will be explained.

1B shown in FIG. 1 is a bottomed cylindrical display tube made of colorless and transparent synthetic resin or glass provided below the frame 1, and is screwed into the upper end opening in a watertight manner. 20 bolts (see FIG. 2) are attached to the frame 1 through a transparent lid 19 made of synthetic resin. The upper center surface of the penalty cover 19 is formed with a funnel-shaped recess, and the lower center surface is formed with a protrusion 21, and an insertion hole 22 is provided in the vertical direction of the protrusion 21.

23 is a black hook member screwed to the outer periphery of the lower part of the display @1B, and a rotating fitting #24 is recessed in the upper end thereof. The lower end of a main body case 25 having a cylindrical shape whose upper end is fitted to the lower surface of a wire clamp S (not shown) is fitted into the fitting groove 24.

26 is a display tube 1 positioned above the hook member 23.
8 is a locking protrusion protruding from the outer periphery, and an O-ring 27 is fitted between the locking protrusion 26 and the upper surface of the hook member 23 and contacts the inner circumference of the main body case 25 in a watertight manner. .

Reference numeral 28 denotes a cylindrical reflective member made of aluminum or the like and made of silvery white and fitted onto the inner periphery of the display tube 18 .

29.30 is a colored fluid with low specific gravity and high viscosity (red in this example) and a transparent fluid with high specific gravity and low viscosity (in this example colorless). Note that it is desirable to set the ratio of the specific gravity of the two to 2.0 or more because the two-layer separation will be stable, but even if the ratio is 1.5 or more, the separation will be good if the chest is long during rest. But it's okay.

Both fluids 29 and 30 are liquids whose viscosity changes little due to changes in external environmental conditions, for example, silicone oil is used as the colored fluid 29, and Florina-1-( is used as the transparent fluid 30).
Minnesota Mining & MFG C
Fluorinated inert liquids such as fluorocarbon oils (proprietary trademarks) and fluorocarbon oils are used.

Reference numeral 31 denotes a valve body as an indicator valve that is always located in the fluid 21.30, and a stop where the tip of the string-like member 11 inserted through the insertion hole 22 of the lid 19 comes into contact with the lower circle of the valve body 31. It is attached to the member 32.

As shown in FIG. 8, this valve body 31 is made by equally dividing discs made of silvery white light metal such as aluminum into an odd number (3 in this embodiment) and disposing them at a predetermined distance Qt from each other. A thin circular shape made of a closed foam elastic body made of polyethylene or the like is attached to the upper ring of each sector-shaped valve piece 33 and has a reduced diameter from the circumferential surface of the sector-shaped valve piece 33. Connecting member 3
It consists of 4. Further, the lower surface of the fan-shaped valve piece 33 is formed obliquely so that the thickness increases from the outer periphery toward the center.
The entire downward direction of the valve body 31 has a conical shape. Therefore, the center portion of the valve body 31 is made to be heavy.

In addition, in addition to the conical shape, any shape in which the center part is rolled up as shown in @12 Figures (8) to (C) can be adopted.

Reference numeral 35 shown in FIG. 10 is a through hole provided in the center of the connecting member 34 through which the string member 11 is inserted.

In addition, as shown in FIG.
is formed, and a locking flange 37 is formed at the lower end of the receiver, the diameter of which is larger than that of the flange 36 and which locks the lower part of the center of the fan-shaped valve piece 33. Further, at the end J of the stopper member 32, a retaining body 38 for the string-like member 11 is formed, the diameter of which is smaller than that of the flange 36, and at the lower center thereof, the retaining body 38 has a diameter larger than that of the retaining body 38. However, a locking step portion 39 having a reduced diameter is also formed on the receiver 7 flange 36.

Further, from one side of the stopper member 32, both flanges 36.
37, a notch groove 4% cut to the center is formed, and the locking flange 37 and the locking step 311
Attachment I! from the opposite side facing the ! A notch groove 41 cut to 11,538 mm is formed. Therefore, this stopper member 32 inserts the tip of the string-like member 11 inserted into the through hole 35 of the connecting member 34 in the vertical direction into the notch groove 4, turns it over at the bottom, and introduces it into the notch 1141 yen. Then, the string-like member 11 in the cutout groove 40 is wrapped around the fastening trunk 31 and the string-like member 11 is raised 4! The circle is made inseparable. Note that the tip of the string-like member 11 is connected to the attachment trunk 38.
It is fixed by means such as intercalating between the string-like material 11 wound around the p-shaped member 11, or adhering to the p-tether body 38 with an adhesive.

The valve body 31 is installed inside the reflection member 28 so as to be able to move up and down with respect to the inside of the reflection member 28 with a small clearance.
The bending part 34a provided between each sector-shaped valve piece 33 in 4
By bending downward at (see FIG. 9), each fan-shaped valve piece 33 can be slightly tilted downward around the center of the valve body 31 wJ.

Then, when the fan-shaped valve piece 33 is tilted so that the center part is upward and the outer peripheral part is downward, the lower surface of the center of the sector-shaped valve piece 33 comes into contact with the upper surface of the locking flange 37 of the stop member 32.
1@IElI I always make sure to have a pair of Arashi.

Further, the apparent specific gravity of the valve body 31 is made larger than the colored corpse 29 and smaller than the transparent fluid 3o, so that the entire lower concave part of the fan-shaped valve piece 33 is submerged in the transparent fluid 30 in the energized state. It is positioned so as to leave a gap between it and the bottom portion 18a of the display tube 18, which also serves as a window.

In this implementation@, the fan-shaped valve piece 33. connecting member 34,
The specific gravity of the colored fluid 29 and the transparent fluid 30 and the apparent ratio 1 of the valve body 31 are determined as follows. Fan-shaped valve piece 33>Transparent fluid 30>Entire valve body 31>1-Color flag body 29
> Connecting member 34 To explain the operation of the overcurrent passing indicator device removed as described above, when an overcurrent exceeding the set value of the electric wire LK passes, a transformed current is generated in the transformer OT,
The output shaft of the rotary solenoid R8 is counter-rotated by the control circuit C by 45 degrees without resisting the elastic force of the built-in return spring 8.

At this time, the work material 3 is transmitted via the amiga board 2 as shown in Fig. 4 (
It is rotated in the direction of the arrow from a) to about m in FIG. 4(b).

Then, the actuating claw 4 of the working fIJJs material 3 rotating from above pushes the diagonal 11s13B of the locking member 13 toward the lifting member e while resisting its elastic force (third factor (b)).
(see FIG. 4(b)), and then completely releases the suppression of the diagonal 11138 and rotates to its lower position (see FIG. 4(b)).

The diagonal portion 13B, which has been released from the compression described in 1.2, returns to its original position due to its own elastic force.

In addition, the operation of the sea bream part 3 due to the rotation of the rotary solenoid [8 up to this point will be interrupted at the time M.

Then, the output shaft of the rotary solenoid R8, which has completed its rotation, starts to rotate back in the opposite direction to that described above, i.e., in the opposite direction m.

As a result, when the operating claw 4 rotates to the positions shown in FIGS. 3(C) and 4(C), the operating claw 4 is locked to the lower surface 16 of the tip of the locking member 13, and the lifting member 6 is moved in the reaction direction. Rotate it to the side and wind up the string-like member 11t.

Therefore, the valve body 31 of the display device I is affected by its gravity and the fluid 30.
．． It is pulled upward through the string-like member 11 while resisting the viscous resistance of 29.

At this time, as shown in FIG. 5, the valve body 31 is tilted a certain amount while the fan-shaped valve piece 33 is bent downward at the bending part 34 while resisting the elastic force of the connecting member 34, and the entire valve body 31 is moved by the colored fluid. It will be moved during the 29th.

When the actuating pawl 4 is further rotated in the counter-plowing direction, the actuating pawl 4 completes the lifting operation of the valve body 31 as shown in FIG. 4(d) and separates from the lower end l1I116 of the locking member 13. At this time, the valve body 31 of the display device H is positioned above the colored fluid 29 as shown in FIG. Colors can be visually recognized.

Then, as shown in FIG.
Due to the elastic force of 4, each fan-shaped valve piece 33 tilts back so that its upper surface becomes horizontal, and the lower part returns to its conical shape.

In other words, the colored fluid 29 below the valve body 31 moves toward the outer periphery while being guided by this conical valve body 31 ll[lVc, and the #: vol.
It moves upward from between the outer periphery of the connecting member 34 and the reflective member 28 in the narrow gap and the gap Q of the fan-shaped valve piece 33111 shown in FIG. Therefore, the valve body 31 is guided by the n-color fluid 29 flowing upward from the outer part of the connecting member 34 and the reflective member 28 in this gap Q, and the stability under its own weight becomes high.

Then, the valve body 31 is delayed and lowered due to the viscous resistance of the colored fluid 29, and after a predetermined period of time, the entire lower surface of the fan-shaped valve piece 33 returns to its normal state while being submerged so as to be in contact with the transparent fluid 3 (IIc).

At this time, the colored fluid 29 partially on the lower surface of the fan-shaped valve piece 33
As the lower surface is immersed in the transparent fluid 30A, the lower surface is sloped upward to the outer periphery, so it moves upward to the outer periphery, and the gap between the valve body 31 and the reflective member 28 is removed. Out valve body 3
1 becomes one with the n-color accent 29 above.

In this embodiment, since the connecting member 34 of the valve body 31 is smaller than the fan-shaped valve pieces 33, the gap Q formed between the fan-shaped valve pieces 33 is exposed, and the gap Q formed on the outer periphery of the valve body 31 is This results in 49 cuts.

When the notch 42 falls under its own weight, it becomes a flow path for the colored fluid 29 on the lower surface of the valve body 31, and the valve body 31 is guided by the colored fluid 29 flowing upward through the flow path and settles in a stable state. I can do it.

Another embodiment will be described with reference to FIG.

In this embodiment, the valve body 31t as an indicator valve of the above-mentioned embodiment is integrally formed of light metal or synthetic resin, and its lower surface is shaped to become thicker from the outer periphery toward the center. The difference is that a plurality of 42 incisions are formed on the outer periphery. Further, its specific gravity is made slightly larger than that of the colored fluid 28.

When the valve body 31i is lifted up to the colored fluid 29A by the lifting mechanism H, the n-colored fluid 29A above the valve body 31
moves below the valve body 31 via the notch 42f. Further, when the lifting operation is completed, the specific gravity of the valve body 31 is equal to that of the colored fluid 2.
9, and due to the viscous resistance of the colored fluid 29, the weight falls with a delay. At this time, the notch 42 of the valve body 31 becomes a flow path for the 1° color light body 29, and the near P. rhinoceros 31 is guided by the color light body 29 that shines upward through the dead time and remains in a stable state. Sediment. The effects of the present invention are the same in this implementation H as well.

In this embodiment, when the valve body 31 is made of a synthetic resin material, its lower surface may be plated with metal or coated with metal to make the specific gravity slightly larger than that of the colored fluid 29, or the synthetic resin material may be coated with metal. It is also possible to add metal to make the specific gravity slightly larger than that of the colored fluid 29.

Next, an explanation will be given according to an approximation @ FIG. 14, which is not directly related to this invention.

The iFP assembly 31 used as this display valve differs from the second example in 1o in that the entire dominant shape is a disk shape.

Therefore, in this embodiment, there is no function of positively guiding the colored fluid 29't-1 on the lower surface of the valve valve 31 toward the outer periphery as in the present invention when the blood is drained.

As described in detail above, the present invention provides the valve body 3 as an indicator valve.
Since the lower surface of the valve body 1 is formed to be thick at the center and thinner toward the outer periphery so that the center becomes heavier, the colored fluid 29 below the valve body 31 can be effectively removed when its own weight falls. At the same time, the valve body 31 is in a very stable state.
As a result, the delayed descent time can be kept constant, which is an excellent effect.

Note that the present invention is not limited to the above-mentioned embodiments, and can be arbitrarily modified without departing from the spirit of the present invention.

[Brief explanation of the drawing]

Fig. 11 is a schematic diagram of the entire embodiment of this invention, Fig. 2 is a plan view of the drive mechanism, and '3rd factor (a) -
(C) is an explanatory diagram showing the linked operation of the actuating member and the locking member;
FIG. 4 is an explanatory diagram showing the nominal layer of the heaping mechanism, in which (a) is a normal state diagram, (b) is a state diagram in which the IJ member is rotated by 45 degrees from the state of (a), and ( C) is made w
(d) is a diagram of the state in which the J member is locked to the locking member, (d) is a diagram of the state immediately before the operating member returns, (e) is a diagram of the state in which the member is rotating to return on the hanging shaft, and Fig. 5 is a diagram of the display valve. is a cross-sectional view of the display device in the raised state, FIG. 6 is a cross-sectional view of the display device in the over-tg transient display state, FIG. 7 is a cross-sectional view with the display valve in the lowered state, and FIG. 8 is an enlarged exploded view of the display valve. + perspective view, Figure 9 is a plan view of the display valve, Figure 10
The figure is a cross-sectional view of the main part of the display device in the lowered state, Figures 11(a) and 11(b) are the side m1 diagram and bottom circle diagram of the stop member, respectively, and Figure 12 is a side view showing the shape of the lower surface of the display valve. , FIG. 13 is a cross-sectional perspective view of the display valve showing the second Fuo side, and FIG.
The figure is a cross-sectional perspective view showing an approximation example. Indication valve (valve body) 31, fan-shaped valve piece 33, connecting member 34° Patent applicant Chubu Electric Power Co., Ltd. 1WJ Figure 2 Figure 3 (a) (b) (c)
Figure 10 11 Figure 11 (a) (b)

Claims (1)

[Claims] 1. A fluid is stored in an indicator cylinder, and a circular indicator valve with upper and lower ends is disposed in the fluid, and when a current passes through it, the electrical energy is transferred mechanically. The mechanical energy is converted into physical energy, and the mechanical energy is used to make the distance between the seven points of the indicator valve > 1 t, and then the mechanical force is released from the indicator valve to allow the indicator valve to descend under its own weight, and its descending speed is controlled by the fluid. The overcurrent passage display device is designed to ensure a predetermined display time using the υ fluid. Display valve. 2. The over II according to claim 1, characterized in that a plurality of notches are formed at equal intervals from the outer periphery of the indicating valve.
E Indication valve of flow passage indicator. 8. Claim 2, characterized in that the notch is exposed on the outer periphery of the display valve indicated by n by reducing the diameter of the entire connecting member in the gap formed between the fan-shaped valve pieces. Indicator valve of the overcurrent passing indicator device described in .