JPS581319Y2 - Pressurized fire extinguisher - Google Patents

Description

[Detailed description of the invention] The present invention is a pressurized fire extinguisher, more specifically, a mouthpiece that movably supports a destruction shaft is attached to the opening of the fire extinguisher body containing a high-pressure gas cylinder, and when the destruction shaft is operated, the Concerning a pressurized fire extinguisher designed to break the seal of a cylinder.

Conventionally, when the mouthpiece is attached to an opening of a fire extinguisher body and the opening is closed, the opening of the fire extinguisher body formed in a straight cylinder is throttled, and a male thread is provided on the outer periphery of the throttle part. A cap is formed to a size that closes the opening, and the cap is placed on the open end of the fire extinguisher main body, while a female thread that matches the male thread is engaged with the upper surface of the outer periphery of the cap. A mounting tube having an annular projection is formed, and the female thread of the mounting tube is screwed into the male thread, so that the cap is attached to the opening of the fire extinguisher main body.

However, as described above, when the cap is attached to the opening of the fire extinguisher body, the threaded edge of the mounting tube is exposed to the outside of the fire extinguisher body, so it should not be installed in a humid place for a long time. and,
Moisture gets into the threaded part of the mounting tube, and the moisture corrodes and deforms the threaded part of the mounting tube.As a result, when refilling the fire extinguisher with powder extinguishing agent, the mounting tube is There was a problem that it could not be removed or that it was very difficult to remove it.

However, if the opening of the fire extinguisher body and the mounting tube are made of a corrosion-resistant material, the threaded part of the mounting tube will not be easily corroded. As a result, there is a problem that the threaded portion of the mounting tube corrodes and deforms.

In addition, since the cap must be formed in a size that can close the opening of the fire extinguisher body, the cap cannot be made smaller than the opening. Since it protrudes outward, it must be made of a rigid material to prevent it from being accidentally damaged due to contact with other objects, making it impossible to reduce the weight of the cap.

The present invention has been devised in view of the above-mentioned drawbacks of the conventional technology, and it is possible to prevent corrosion at the part where the Q-type cap is attached to the fire extinguisher body, and to connect the cap to the opening of the fire extinguisher body. The object of the present invention is to provide a pressurized fire extinguisher that can be made smaller and lighter than other parts.

Therefore, the present invention is a pressurized type in which a mouthpiece that movably supports a breaking shaft is attached to the opening of a fire extinguisher body with a high-pressure gas cylinder inside, and the sealing plate of the cylinder is broken by the operation of the breaking shaft. In the fire extinguisher, the fire extinguisher main body is formed into a straight cylinder, and the opening end of the main body is provided with a mounting piece that protrudes inwardly, and the mounting piece is provided with a plurality of screw holes. A cap having a holding part is formed, and the cap is held in the holding part of the cap, and through holes corresponding to the screw holes are provided in the outer peripheral part of the cap, and the through holes and each of the screw holes are connected to each other. The cap is attached to the fire extinguisher body by fitting a head bolt into the screw hole from the outside of the key.

Embodiments of the present invention will be described below based on the drawings.

In the figure, reference numeral 1 denotes a fire extinguisher main body having an opening 1a at the upper end, and consisting of a straight cylindrical body 1b with a bottom wall and a mounting tube 1c of about the same size as the body 1b. An inwardly protruding mounting piece 2 is provided at the open end of the main body 1, specifically at the upper end of the mounting tube 1c.

As shown in FIG. 3, a plurality of mounting pieces 2 are provided at predetermined intervals in the circumferential direction, and each of these mounting pieces 2 is provided with a screw hole 2a.

Incidentally, a plurality of the mounting pieces 2 (one ring-shaped one may be provided without using IQ).

Reference numeral 3 denotes a cap that is attached to the opening 1a of the fire extinguisher main body 1, and the cap 3 supports a breaking shaft 4 having a sharp point at one end so as to be movable up and down.
aC Attach the closed high pressure gas cylinder 5 by screwing,
The sealing plate 5a is broken by the downward movement of the breaking shaft 4, and a gas release path 3a opens at the bottom of the fire extinguisher body 1 via a gas release pipe (not shown);
A chemical discharge path 3b opening at the bottom of the fire extinguisher main body 1 via the siphon pipe 6 is provided.

Thus, the cap 3 is attached to the fire extinguisher main body IK via the cap 7 having a holding portion 7a for the cap.

This key 7 is made of a metal plate, and its central part is recessed upward to provide a holding part 7a for the base 3.The base 3 is inserted into the holding part 7aVC, and the base 3 is held between two parts. The cap 7 is held in the holding portion 7a via a set screw 8, and a through hole 7b corresponding to the screw hole 2a of the mounting piece 2 is provided on the outer circumference of the cap 7. The cap I is attached to the fire extinguisher body 1 by fitting the bolt 9 into the hole 2a from the outside of the cap 7.

Further, an annular projection 7c is provided on the outer peripheral edge of the cap 7, and a sealing material 10 is provided inside this projection, and when the head bolt 9 is tightened, the sealing material 10 is elastically deformed. This prevents moisture from entering the interior between the cap 7 and the fire extinguisher main body 1, and a sealing material 1 is also provided between the inner surface of the head 9a of the head bolt 9 and the upper surface of the cap I.
1 to more reliably prevent moisture from entering the inside through the through hole 1b.

The holding part 7a is formed in a straight shape without being recessed as shown in FIG. However, it is advantageous in that the volume inside the fire extinguisher main body 1 can be increased by recessing it as shown and holding the cap 3 in this holding portion.

Further, in the figure, 12 is a discharge hose attached to the outlet of the drug release path 3b in the cap 3, 13 is a fixed lever attached to the upper surface of the holding part 7a of the cap 1, and 14 is this lever 1.
A starting lever is pivotably pivoted to the starting lever 14, and the breaking shaft 4 is moved up and down when the starting lever 14 is operated.

Further, 15 is a lever support for the activation lever 14, and 16 is a safety pin that prevents the lever support 15 from rotating.

The present invention is constructed as described above, and when it is used, first remove the safety bin 16, release the rotation of the telebar support 150, and then actuate the activation lever 14 so that the destruction shaft 4 is moved downward. The sealing plate 5a of the high-pressure gas cylinder 5 is broken, and the high-pressure gas in the cylinder 5 is
The gas discharge path 3a also flows out to the bottom of the fire extinguisher body 1 through the gas discharge pipe, and this high-pressure gas immediately increases the internal pressure within the fire extinguisher body 1, causing the powder extinguishing agent in the body 1 to
The drug is emitted from the nozzle to the outside via the siphon tube 6, the drug release path 3b, and the release hose 12.

In addition, when refilling the fire extinguisher body 1 with powder extinguishing agent, loosen the head bolt 9 and remove it from the screw hole 2a, and in this state lift the cap I holding the cap 3 and attach it to the cap 3. Pull out the attached high-pressure gas cylinder 5, siphon pipe 6, and gas discharge pipe from inside the fire extinguisher main body 1, and
The inside of the fire extinguishing agent is then refilled with powder extinguishing agent.

Therefore, in the present invention, the cap 3 is held in the cap 7, the cap I is attached to the fire extinguisher main body 1 using the head bolt 9, and the threaded portion of the head bolt 9 is tightened as shown in FIG. Since it is hidden inside the crack 7, even if it is installed in a humid place or near the sea for a long time, the threaded part of the head bolt 9 will not be corroded by external moisture. It can definitely be prevented.

Therefore, when refilling the powder extinguishing agent into the fire extinguisher body 1,
The cap 7 can be easily removed.

Furthermore, by forming the fire extinguisher main body 1 into a straight cylinder shape, and providing a plurality of mounting pieces 2 projecting inwardly at a predetermined interval in the circumferential direction at the open end of the main body 1, as shown in FIG. Since the opening surface of the fire extinguisher body 1 can be increased, it is possible to easily refill the powder extinguishing agent into the fire extinguisher body,
In addition, pretreatment and painting inside the fire extinguisher body 1 can be easily performed.

As described above (in the present invention, the fire extinguisher body is formed into a straight cylinder shape,
A mounting piece protruding inward is provided at the open end of the fire extinguisher body, a plurality of screw holes are provided in the mounting piece, and a cap to be attached to the opening of the fire extinguisher body is held in the cap;
A through hole corresponding to each of the screw holes is provided on the outer circumference of the cap, and a head bolt is inserted into each of the through holes and each of the screw holes from the outside of the cap to attach the cap to the fire extinguisher. Since it is attached to the main body and the threaded part of the bolt is concealed, even if it is installed in a humid place or near the sea for a long time, the threaded part of the headed bolt will remain intact.
This can reliably prevent corrosion caused by external moisture.

Therefore, the cap can be easily removed when refilling the fire extinguisher body with powder extinguishing agent.

Moreover, since the cap is held in the cap and attached to the fire extinguisher main body via the cap, the cap can be made much smaller than the opening of the fire extinguisher main body, and the cap can hide the cap. This prevents other objects from coming into contact with the cap.

Therefore, the base can be made of a lightweight material such as a synthetic resin without being made of a rigid material, and this together with the fact that it can be made compact and lightweight can be achieved.

[Brief explanation of drawings]

Fig. 1 is a partially omitted vertical sectional view showing an embodiment of the present invention;
The figure is a partially omitted plan view, and FIG. 3 is a plan view of the fire extinguisher main body. 4... Fire extinguisher body, 1a... Opening,
2... Mounting piece, 2a... Screw JL
3...Brouse, 4...Destruction shaft, 5...
...High pressure gas cylinder, 5a...Sealing plate, I...
...Cap, 7a...Holding part, 1b...
... Penetrator 9 ... Head bolt.

Claims (1)

[Scope of utility model registration request] In a pressurized fire extinguisher, a mouthpiece that movably supports a breaking shaft is attached to an opening of a fire extinguisher body containing a high-pressure gas cylinder, and the actuation of the breaking shaft causes the seal of the cylinder to be broken. is formed into a straight cylinder shape, and a mounting piece protruding inward is provided at the open end of the main body, and a plurality of screw holes are provided in the mounting piece, and a cap having a holding portion for the cap is provided. The base is held in the holding portion of the cap, and through holes corresponding to the respective screw holes are provided in the outer peripheral portion of the cap, and a head is formed in each of the through holes and each of the screw holes. A pressurized fire extinguisher characterized in that a bolt is fitted from the outside of the cap so that the cap is attached to the fire extinguisher body.