JP2000254243A - Device for instantaneously rupturing high pressure gas passage shut-off plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive device in a simple mechanism having a CO2 cylinder in a room for instantaneously releasing CO2 gas in a fire. SOLUTION: A sliding shaft 2 with a cutter 7 at the end is arranged at the rear of a high pressure gas passage shut-off plate and energized forward with a spring 5. The rotary portion of a rotary solenoid 8 is arranged at a right angle to the sliding shaft 2. The rotary portion is provided with a cutout through which the sliding shaft 2 can pass. The high pressure gas passage shut-off plate with the sliding shaft 2 movable forward opposite the cutout during the operation of the rotary solenoid 8 is instantaneously ruptured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to ruptures the CO ₂ gas discharge path blocking plate of from CO ₂ cylinder instantaneously relates breaking apparatus was set to extinguishing indoor fire instantly.

[0002]

_2. Description of the Related Art Conventionally, a CO ₂ cylinder is placed in a room, and as a device for releasing CO ₂ gas instantaneously when a fire occurs, FIG.
To FIG. 16 are known. The above device is a CO
_A metal barrier film 52 is provided in a CO ₂ gas discharge passage 51 communicating with the _two cylinders 50 to constantly block CO ₂ gas.
_2. A sliding shaft 54 constantly urged forward by a spring 53 is disposed behind the gas discharge passage 51, and a cutter 5
5, the rear end of the two-link 56 is pivotally connected to the slide shaft 54 with a pin 57, and the locking piece 58 at the tip of the two-link 56 is rotated half a month while extending substantially linearly. Lock with plate 59,
Amateur 61 in the inoperative position of the linear solenoid 60
Locked by.

When the linear solenoid 60 is energized in the event of a fire, the armature 61 is pulled downward as shown in FIG. 11, and the half-moon turning plate 59 turns counterclockwise to engage with the tip of the two-link 56. The stopper is released, and the sliding shaft 54 advances due to the elasticity of the spring 53 and the cutter 55 pierces the metal blocking film 52, and is released into the room from the CO ₂ gas release passage 51 of the CO ₂ cylinder 50.

Reference numeral 100 denotes a case body. A spring 105 is provided in a spring housing 104 having a sliding shaft 102 slidably supported by a bearing 103 and having an open end.
02 urges the metal 106 at the tip end forward,
The cutter 107 is fixed to the two ends. 108 is a two-bar link, the rear end of which is pivotally connected to the slide shaft 102 with a pin 109,
The tip is a pin 110, which is pivotally attached to the case body 100. Reference numeral 114 denotes a rotary solenoid fixed to the side of the case body 100. When the rotary solenoid 114 is not operated, the two-node link 108 is made substantially straight, and the swing lever 11 of the rotary solenoid 114 is rotated.
5 is a substantially straight two-node link 108 at the tip pressing portion 116.
Is pressed to lock the two-bar link 108 substantially linearly.

[0005] In use as shown in FIG. 16, CO ₂ cylinder 11
1 and attached to the rear end of the CO ₂ release pipe 112, and the cutter 107 is attached to the metal barrier film 113 in the CO ₂ release pipe 112.
And are arranged so as to have a slight interval.

In the event of a fire, the rotary solenoid 114
When the power is supplied to the swing lever 115, the tip pressing portion 116 of the swing lever 115 rotates from the pressing portion of the two-link 108 to release the lock. The sliding shaft 102 is advanced by the elasticity of the spring 105, and the cutter 107 breaks through the metal barrier film 113, so that the CO ₂ gas in the CO ₂ cylinder 111 is discharged into the room by the discharge pipe 112.

[0007]

In the above prior art, since a linear solenoid is used and a linear motion is changed to a rotary motion, there is a problem that the mechanism is complicated, expensive and the vibration resistance is reduced. . In addition, since the link mechanism still exists, it is unavoidable that a structure in which the link is controlled by the rotary solenoid becomes complicated and expensive.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems by disposing a sliding shaft having a cutter at the tip at a rear portion of a high-pressure gas passage blocking plate, and urging the sliding shaft forward with a spring. The rotary part of the rotary solenoid is disposed at right angles to the sliding shaft, and a notch is formed in the rotary part so that the sliding shaft can pass through. When the rotary solenoid is operated, the sliding shaft faces the notch. It is characterized by being able to move forward.

[0009]

1 to 9 show an embodiment of the present invention.
This will be described in detail based on the embodiment shown in FIG. Reference numeral 1 denotes a case body, and sliding shafts 2 and 2 '(for assembly, 2 and 2' are connected by a threaded portion) are slidably supported by a bearing 3 and have open ends. A spring 5 is arranged in a spring housing 4 to urge a flange 6 at the tip of the sliding shaft 2 forward, and a cutter 7 is fixed to the tip of the sliding shaft 2. Reference numeral 8 denotes a rotary solenoid whose shaft end 9 is adapted to rotate in a plane perpendicular to the sliding shaft 2, and a flat surface through which the protrusion 10 of the sliding shaft 2 can pass through the rotating shaft end. A notch 11 is formed. The shaft end 9 is urged by a return spring 12 attached to the rotary solenoid in the direction b. Also, the stopper rod 13 hits the end of the spring case 14 holding one end of the spring of the return spring 12 and stops so that the shaft end 9 does not rotate excessively. In this case, the protruding portion 10 presses the shaft end 9 at the portion a,
As shown in FIG. 5, a component force is generated in the direction of the part b, and the passage is reliably prevented. When the rotary solenoid 8 is actuated, the shaft end 9 rotates by a predetermined angle, and the protrusion 10 of the slide shaft 2 advances through the notch 11. Even when the sliding shaft 2 moves forward, the protruding portion 10 and the planar notch 11 are as shown in FIG.

In use, as shown in FIG. 8, the CO ₂ cylinder 15 is attached to the rear end of the Co ₂ discharge pipe 16 and the cutter 7 is
It is arranged so as to have a slight distance from the metal barrier film 17 in the O ₂ discharge pipe 16.

In the event of a fire, when the rotary solenoid 8 is energized, the shaft end 9 overcomes the return spring 12 and rotates in the opposite direction to b. Further, it goes without saying that the rotation is achieved by overcoming the frictional force of the portion a. When the shaft end 9 rotates in the direction opposite to the direction b, the flat notch 11 rotates to the position of the protrusion 10, so that the protrusion 10 is no longer locked, and the protrusion 1
0 moves forward while contacting the planar notch 11 (FIG. 9).
That is, the sliding shafts 2 and 2 ′ are advanced by the spring 5 and the cutter 7 breaks through the metal barrier film 17, so that CO ₂
The CO ₂ gas in the cylinder 15 passes through the discharge pipe 16 through the passage 18.
Is released into the room. The shaft end 9 is a shaft of a rotary solenoid, which rotates but does not move horizontally or vertically. Since the sliding shaft 2 is only forward or marching, the shaft end 9
And the protruding portion 10 is established only in the direct direction, and the locking operation can be realized. The 2 'portion includes a protruding portion for pressing a lever of a switch 19 (connected to the housing 4 and screwed but not shown) for detecting a ready state (FIG. 3) and an operating state (FIG. 9). Prepare. A knob 20 and a protective transparent cover 21 are provided on the opposite end of the rotary solenoid 8 opposite to the shaft end 9 so that the cutter can be protruded by turning the shaft end 9 by a manual operation, not by operation.
Is provided. Although not shown, an electrical protection circuit board (e.g., a surge absorbing element or a DC element) is provided in the cover. Also, return spring 12, 1 for stopper
3. The spring case 14 may be provided on the knob 20.

FIG. 7 shows the relationship between 9 and 10 in the operating state, but 2 and 2 '(integral) ends 2 with 10 protrusions.
A jig for backward movement is attached to the threaded portion 2 and the sliding shafts 2 and 2 'are moved backward. When the protrusion 10 moves backward until the shaft end 9 separates, the shaft end 9 is rotated by the return spring 12 in the direction b, and is stopped by the stopper rod 13 to the ready state position. Then, if the jig is removed from the screw portion 22, the preparation state is completed.

[0013]

According to the present invention, a sliding shaft having a cutter at the tip is disposed at the rear of the high-pressure gas passage blocking plate, and is urged forward by a spring, so that the rotary part of the rotary solenoid is perpendicular to the sliding shaft. The rotary shaft is provided with a notch portion through which the sliding shaft can pass, and when the rotary solenoid is operated, the sliding shaft is opposed to the notch portion and can be advanced, so that the structure is extremely simple. The vibration resistance can be improved, the reliability can be improved, and the device can be manufactured at low cost. In addition, by providing a knob on the axis of the rotary solenoid to enable manual operation,
The emergency response has been duplicated, improving safety. Moreover, it can be realized with a simple structure.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an embodiment of the present invention, showing a ready state in which it can be operated at any time.

FIG. 2 is a plan sectional view of a sliding shaft portion of FIG.

FIG. 3 is a three-dimensional view of FIG. 2;

FIG. 4 is a cross-sectional view of a return spring and a stopper portion of the rotary solenoid.

FIG. 5 is a detailed view when the shaft end 9 and the protrusion 10 are locked.

FIG. 6 is a detailed view of the shaft end 9 and the protruding portion 10 at the time of operation when being locked.

FIG. 7 is an explanatory diagram at the end of the operation in FIG. 6;

FIG. 8 is a partially cut front view of the present invention attached to a CO ₂ cylinder.

FIG. 9 is a three-dimensional view of the operating state of FIG. 3;

FIG. 10 is a front sectional view of a main part of the conventional device when the first comparative example is not operated.

FIG. 11 is a front sectional view at the time of operation of FIG. 10;

FIG. 12 is a partially cut front view in operation of a conventional apparatus attached to a CO ₂ cylinder.

FIG. 13 is a front sectional view of a conventional second comparative example when not operating.

FIG. 14 is a plan sectional view of FIG.

FIG. 15 is a front sectional view at the time of operation of FIG. 13;

FIG. 16 is a partially cutaway front view in operation with a CO ₂ cylinder attached.

[Explanation of symbols]

1 case body 2, 2 'slide shaft 3 bearing 4 spring housing 5 spring 6 flange 7 cutter 8 rotary solenoid 9 shaft end 10 projecting portion 11 flat notch 12 return spring 13 stopper rod 14 spring case 15 CO ₂ Cylinder 16 Co ₂ release pipe 17 Metal barrier film 18 Passage 19 Switch 20 Knob 21 Protective transparent cover

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koichiro Okawa 5-13-7 Kamisuna-cho, Tachikawa-shi, Tokyo F-term in Act Giken Co., Ltd. (reference) 3C060 AA16 BA03 BD01 BE08 BE10

Claims (1)

[Claims] 1. A sliding shaft having a cutter at a tip thereof is provided at a rear portion of a high-pressure gas passage blocking plate, urged forward by a spring, and a rotary portion of a rotary solenoid is provided at right angles to the sliding shaft. An apparatus for forming a notch portion through which a sliding shaft can pass through a rotating portion, and instantaneously breaking a high-pressure gas passage blocking plate such that when the rotary solenoid is operated, the sliding shaft can face the notch portion and move forward.