JP7443484B2 - Storage container and spout holder for fire extinguishing equipment, airtight container for fire extinguishing equipment - Google Patents

Description

The present invention relates to an airtight container that is equipped with an inner container and a container lid that allow for easy attachment and removal of the inner bag and ensure airtightness.

Conventionally, an inner bag has been inserted inside a container such as a tank or drum for use in order to prevent corrosion and save cleaning time. At that time, in order to seal the contents in the inner bag, there are two methods: sandwiching the film of the inner bag with a lid that covers the top of the container, or placing the inner bag with a resin cap into a container with an open top. It had been taken. However, simply placing a lid on a container containing an inner bag and sandwiching the film of the inner bag between the edges of the lid does not make the container airtight. Therefore, they could not be used for tanks such as fire extinguishers that pressurize the inside of the container, for storing hazardous or flammable substances, or for storing contents that are easily deteriorated by outside air. Furthermore, even with the method of using an inner bag with a resin cap, since the inner surface of the container is exposed to the outside air, there is a possibility that moisture may enter the gap between the container and the inner bag, causing corrosion of the container. Furthermore, when used as a pressure-resistant container such as a fire extinguisher, or when storing easily vaporized chemicals or combustible materials, the inner bag and cap cannot withstand the pressure.

Japanese Patent Application Publication No. 2005-297499

Patent Document 1 describes a method of charging a corrosion-resistant bag into a metal container, and a method of charging a heat-deformable bottomed resin material, filling it with high-pressure gas, and pressing it into the metal container. is listed. However, Patent Document 1 does not consider the airtightness of the opening of the corrosion-resistant bag or the like, and there is a possibility that the contents may leak from the opening onto the inner surface of the metal container. Furthermore, in the method of charging a corrosion-resistant bag, there is a risk that the corrosion-resistant bag may peel off from the metal container. On the other hand, Patent Document 1 describes a method of fixing a corrosion-resistant bag inside a metal container with an adhesive. However, with the method of fixing a corrosion-resistant bag inside a metal container or the method of charging a resin material and crimping it inside a metal container, the inner bag cannot be replaced and must be cleaned before reuse. Become. Cleaning may be difficult depending on the contents as they may stick inside the container. In addition, if the container is not cleaned carefully, the resin on the inner surface of the container will be damaged or deteriorated, and there is a risk that the contents will leak from the damaged area to the inner surface of the metal container when new contents are filled and stored.

Therefore, the present invention provides corrosion resistance, airtightness, The object of the present invention is to provide an airtight container that has airtightness, pressure resistance, and can be reused by easily replacing the contents.

The present invention is intended to solve the above problems and has the following configuration.

The present invention is a storage container having a spout receiving base, in which an inner container in which a spout and a bag are joined is inserted, and when the inner container is filled with contents with the spout installed on the spout receiving base. , a storage container characterized by having an air vent that can be opened and closed from which internal air is exhausted.

Further, the present invention includes an inner container in which a spout and a bag are joined, and a storage container having a spout receiving base, and the storage container is provided with the inner container being inserted into the storage container, and the spout receiving base being inserted into the storage container. The airtight container is characterized in that it has an air vent that can be opened and closed, through which air in the storage container is exhausted when the inner container is filled with contents with the spout installed in the storage container.

The storage container or airtight container of the present invention allows air inside the storage container to be exhausted when the inner container is filled with contents.

FIG. 2 is an overall view of an inner container 2 in an embodiment of the present invention. FIG. 2 is a top view and a cut end view of a spout 21 portion of an inner container 2 in an embodiment of the present invention. It is an exploded view of the airtight container 1 in one embodiment of the present invention. FIG. 2 is a sectional view of the airtight container 1 after assembly in an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of a spout 21 portion of the airtight container 1 after assembly in an embodiment of the present invention.

The airtight container 1, which is an embodiment of the present invention, is a fire extinguishing agent tank of a fire extinguishing system filled with various fire extinguishing agents as contents.

FIG. 1 is an overall view of the inner container 2 according to an embodiment of the present invention, and is a view of the inner container 2 before attachment as viewed from the direction in which the spout 21 is attached. The inner container 2 is a rectangular bag 22 with an opening 221 provided near the end and a spout 21 joined thereto, and is used by being inserted into a tank 4, which will be described later.

Since the bag 22 is made of a corrosion-resistant film, it will not be corroded by the contents and will not have holes due to deterioration. Further, the film has airtightness and barrier properties, and the contents do not leak out onto the inner surface of the tank 4. Therefore, deterioration such as corrosion does not occur on the inner surface of the tank 4. Furthermore, since the inner surface of the tank 4 does not get dirty, the inner surface of the tank 4 can be cleaned by simply taking out and replacing the inner container 2. Since the bag 22 is flexible, if the airtight container 1 has an opening of a certain size, the bag 22 can be folded and taken out when being attached or removed. Furthermore, the bag 22 is made to be slightly larger than the inner surface of the tank 4 when inflated. Therefore, no gap is created between the inner surface of the tank 4 and the bag 22 during filling. Although folds and wrinkles occur in the bag 22 during filling, the film is flexible and will not be damaged. Note that the shape of the bag 22 does not have to be rectangular and may be cylindrical or the like. The bag 22 has an opening 221 for taking the contents in and out, and the spout 21 is connected thereto.

The spout 21 is open at the center and serves as an entrance and exit for the contents to the inner container 2. Furthermore, the presence of the spout 21 makes it possible to ensure the airtightness of the container when the opening is closed, as will be explained later. Furthermore, the spout 21 prevents the inner container 2 from falling into the tank 4 . After taking out the contents, the inner container 2 can be easily removed by grasping the spout 21 and pulling it out.

FIG. 2 is a top view and a cut-away end view of the spout 21 portion of the inner container 2 in one embodiment of the present invention. The spout 21 is made by injection molding of a flexible and stretchable resin such as an elastomer or rubber, has airtightness and corrosion resistance, and is thicker than the bag 22. FIG. 2(a) is an enlarged view of the spout 21 in FIG. Further, FIG. 2(b) is an end view of the cut portion of the spout 21 and the bag 22 in the vicinity of the spout 21 of FIG. 2(a), taken along the line AA and viewed from the side.

The first ring 211 is a flat ring with a thickness of 1 mm and has a first open end 212 surrounding an opening on the inside, and is provided at the upper part of the spout 21 . The body 213 has a cylindrical shape, has a thickness of 0.5 mm, which is thinner than the first ring 211, and has elasticity. The second ring 214 is a flat ring located at the bottom of the spout 21, has a thickness of 0.5 mm, and has a second open end 215 surrounding the opening on the inside. The bag 22 is formed of a film and has an opening 221.

The spout 21 has a structure in which one end of a body 213 is connected to a first open end 212 inside a first ring 211 and the other end of the body 213 is connected to a second open end 215 inside a second ring 214. ing. The spout 21 is hermetically joined to the upper surface of the outer edge of the opening 221 of the bag 22 at the lower surface of the second ring 214 . The opening of the spout 21 formed from the inside of the first ring 211 , the inside wall of the body 213 , and the inside of the second ring 214 communicates with an opening 221 of the bag 22 and is connected to the inside of the bag 22 .

Since the bag 22 and the spout 21 are joined together on a plane without any gaps by the flat second ring 214 at the lower end of the spout 21, the joint can have high airtightness and strength, and the inner container 2 can be manufactured easily. It is. In this embodiment, the second ring 214 of the spout 21 is joined to the bag 22 by heat sealing. In addition, since the body 213, the second ring 214, and the bag 22 are all easily deformed in order to be charged into the tank 4, the first ring 211 has a thickness greater than that of the body 213, so it is easily deformed. It is difficult to bend and keeps the ring shape easily.

FIG. 3 is an exploded view of the airtight container 1 in one embodiment of the present invention. FIG. 3 schematically shows the assembly of the airtight container 1. The airtight container 1 is composed of a tank 4, an inner container 2, and a spout retainer 3, and the spout retainer 3, which is a container lid, is composed of a retainer member 31 and a cover nut 32.

Tank 4, which is an external storage container, is made of iron and has airtightness and pressure resistance. A spout receiving base 41 is provided at the top, and the center of the spout receiving base 41 is opened in a cylindrical shape and communicates with the inside of the tank 4. The spout receiving base 41 is provided with an external thread 411 on the outer periphery of the upper end. The inner container 2 is made up of a bag 22 and a spout 21 joined as described above. The holding member 31 has a disc shape and is made of a corrosion-resistant metal such as stainless steel. A hole for attaching a siphon tube 311 is provided in the center of the holding member 31, to which the siphon tube 311 is connected, and a pressurized gas inlet 312, which will be described later, is provided at a position offset from the center.
The upper part of the circumferential portion of the pressing member 31 protrudes to form a flange part 314, and the center part is a thick part 315. The flange portion 314 is provided with a groove on the lower side into which the O-ring 313 is fitted. The cover nut 32, which is a pressure member, is made of iron, has an internal thread 321 (shown in FIG. 5) on the inside, has a hexagonal wrench action part 322 on the upper outer periphery, and has a large opening in the center. ing. A push portion 323 is formed between the wrench action portion 322 and the internal thread 321 so as to protrude inward.

The airtight container 1 is usually assembled using the following procedure. First, the inner container 2 is charged into the tank 4. First, the bag 22 is inserted into the tank 4 through the opening of the spout receiving base 41 from the part where the spout 21 is farthest. Then, the second ring 214 and body 213 of the spout 21 are pressed and deformed, and pushed into the opening of the spout receiving base 41. At this time, care must be taken to prevent the first ring 211 from falling into the opening, but the first ring 211 is somewhat thick and therefore difficult to bend, making it difficult to fit into the opening. When the first ring 211 is installed on the external receiving surface of the spout receiving base 41, the second ring 214 and the body 213 expand, and the spout 21 returns to its original shape.
Next, the contents are filled into the inner container 2 through the opening of the spout 21. Then, the bag 22 expands within the tank 4 due to the pressure of the contents and is pressed against the inner surface of the tank 4. At this time, the air in the tank 4 is exhausted from an air vent (not shown) provided above the tank 4 that can be opened and closed. The bag 22 covers the inside of the tank 4 with the excess film overlapping.

Next, the holding member 31 to which the siphon pipe 311 and the O-ring 313 are attached is attached to the tank 4. First, the siphon tube 311 is inserted into the spout 21, and then the pressing member 31 is placed on the upper surface of the spout 21. Then, the cover nut 32 is placed on the holding member 31, screwed together by the internal thread 321 (explained in FIG. 5) and the external thread 411 of the spout receiving base 41, and tightened by rotating the wrench acting part 322 with a wrench. Due to the tightening pressure between the cover nut 32 and the spout receiving base 41, the flange portion 314 of the pressing member 31 pressed by the pressing portion 323 presses the first ring 211 of the spout 21. Since the first ring 211 has a certain degree of thickness and flexibility, it is deformed by the tightening pressure and comes into close contact with the external receiving surface of the spout receiving base 41 and the O-ring 313. The presence of the O-ring 313 in addition to the first ring 211 further improves the airtightness, realizing an airtight container 1 that maintains airtightness that can withstand high pressure. Thereafter, a hose or the like connected to the siphon pipe 311 and the pressurized gas inlet 312 is attached to the upper part of the holding member 31.
Note that instead of attaching the holding member 31 to the tank 4 after filling the contents as described above, the holding member 31 is attached to the tank 4 and then the contents are filled through the pressurized gas inlet 312 or the like. You may.
When the assembled airtight container 1 is used as a fire extinguishing device, pressurized gas is injected from the pressurized gas inlet 312, contents such as various fire extinguishing agents are made to flow into the siphon pipe 311, and the contents are passed through the holding member 31. is forced out to the outside.

The spout retainer may be a single member, but since the spout retainer 3 of this embodiment is separated into two parts, the retainer member 31 and the cover nut 32, only the cover nut 32 rotates when the lid is screwed together. The holding member 31 is difficult to rotate. Therefore, force in the rotational direction is less likely to be applied to the spout 21, and the upper surface of the first ring 211 is less likely to be damaged due to rotation. Further, even if the spout presser 3 is attached with a hose or the like connected to the siphon pipe 311 or the pressurized gas inlet 312, the hose is unlikely to be twisted because the presser member 31 does not rotate. Furthermore, the rotation of the siphon tube 311 within the inner container 2 and the bag 22 can be avoided. Since the holding member 31 can be fixed in any direction, the pressurized gas inlet 312 can be easily placed in an appropriate position when connecting external parts to the pressurized gas inlet 312 to configure a fire extinguishing system or the like. .
Moreover, since it is separated from the cover nut 32, the pressing member 31 becomes compact, and the siphon tube 311 can be easily handled.

FIG. 4 is a sectional view of the airtight container 1 after assembly in one embodiment of the present invention.
The cover nut 32 is threadedly connected to the spout receiving base 41. The holding member 31 is placed on the spout 21 and is pressed toward the spout receiving base 41 by screwing the cover nut 32. The spout 21 is fitted along the top, inner surface, and bottom of the spout receiving base 41 to protect the spout receiving base 41 from coming into contact with the contents and prevent corrosion. Since the spout 21 is flexible and thick, it is unlikely to be damaged even if a nozzle or the like is inserted during filling.

The pressing member 31 presses down the first ring 211 shown in FIG. 2 of the spout 21 from above. Further, in this embodiment, the siphon pipe 311 attached to the holding member 31 passes vertically through the center of the tank 4 in order to take in the contents from the rounded lower end of the inner surface of the tank 4. The upper surface of the pressing member 31 is exposed at the opening inside the cover nut 32, and a hose or the like can be attached to the siphon pipe 311 or the pressurized gas inlet 312. The cover nut 32 prevents the pressing member 31 from falling off, and at the same time functions as a pressure member that presses the pressing member 31, thereby ensuring the airtightness of the airtight container 1 by the first ring 211.

FIG. 4 shows the airtight container 1 in a state where the loaded bag 22 is not filled with contents, and there is a gap between the bag 22 and the inner surface of the tank 4. The bag 22 is expanded by filling with contents or injecting pressurized gas, and is pressed against the inner surface of the tank 4, and at this time, the excess film of the bag 22 overlaps. Although air remains in the gap between the tank 4 and the bag 22 during filling, the inner surface of the tank 4 does not corrode. Since the entire inside of the tank 4 is airtight, it is protected from corrosion due to external substances, and since the bag 22 has airtightness and barrier properties, corrosion due to the contents does not occur.

The airtight container 1 of the present invention includes a double airtight space. One is an airtight space of the inner container 2, and the other is an airtight space of the airtight container 1 having the inner container 2 inside. The airtight space of the inner container 2 is a part surrounded by the bag 22, the spout 21, and the pressing member 31, and is corrosion resistant, and has airtightness and airtightness that prevents airtightness inside the tank 4 outside the inner container 2 and inside the airtight container 1. Contents do not leak to the outside. Moreover, since it is surrounded by a pressure-resistant tank 4, the internal pressure can be increased without damaging the flexible internal container 2.

The airtight space of the airtight container 1 is a portion surrounded by the tank 4, the first ring 211, and the pressing member 31, and has airtightness and airtightness to prevent substances from entering or exiting from the outside, and is pressure resistant. Each of the tank 4 and the holding member 31 has pressure resistance, and since the holding member 31 is pressed and sealed against the spout receiving base 41 of the tank 4 with the first ring 211 in between, pressure does not escape. Note that both the airtight space of the inner container 2 and the airtight space of the airtight container 1 are sealed by pressing the first ring 211.

FIG. 5 is an enlarged sectional view of the spout 21 portion of the airtight container 1 after assembly in an embodiment of the present invention, and is an enlarged view of the upper part of FIG. In addition to the spout 21 and bag 22 that are the internal container 2, FIG. There is. In the airtight container 1, the flange portion 314 and the first ring 211 are sandwiched between an internal thread 321 provided on the lower part of the inner periphery of the cover nut 32 and an external thread 411 on the outer periphery upper part of the spout receiving base 41. It is sealed by being pressed.

In the airtight container 1 after assembly, the first ring 211 rests on the external receiving surface of the spout receiving base 41. The first ring 211 serves to prevent the inner container 2 from falling when the spout retainer 3 is not attached. The first ring 211 supports the spout 21 so that it does not come off when the inner container 2 is attached or when the spout 21 is pulled downward due to filling the contents. Furthermore, when the lid is attached, the first ring 211 is compressed between the spout receiving base 41 and the pressing member 31 as shown in FIG. 5, and functions as a sealing material. By being pressed, the first ring 211 fills the gap with the external receiving surface of the spout receiving base 41 and the pressing surface of the lower part of the flange portion 314 of the pressing member 31 and comes into close contact with the inside of the tank 4 and the internal container 2. can do.

The body 213 of the spout 21 is disposed so as to cover the cylindrical inner surface of the spout receiving base 41, and expands when the pressure inside the inner container 2 becomes high and tightly adheres to the inner surface of the spout receiving base 41. do. Since the body 213 is flexible and expands, cracks and holes do not occur. In this embodiment, the body 213 is formed thinner than the first ring 211 to ensure flexibility for expansion.

The holding member 31 is made of corrosion-resistant stainless steel or the like because its lower surface directly contacts the contents. On the other hand, since the tank 4 does not touch the contents, it does not need to be made of corrosion-resistant stainless steel or the like, and may be made of ordinary iron. The holding member 31 has a thick wall portion 315 and therefore has high pressure resistance. In addition, since the difference between the outer diameter of the thick part 315 and the inner diameter of the first ring 211 and the body 213 is small, the thick part 315 is inserted inside the first ring 211 and the body 213 of the spout 21. At this time, the holding member 31 does not swing and remains stable. The siphon pipe 311 and the pressurized gas inlet 312 are located inside the opening of the spout 21 in the holding member 31, as shown in FIG.

After the contents have been removed, the inner container 2 can be easily removed and replaced. First, unscrew the cover nut 32, remove the holding member 31, and then pull out the body 213 of the spout 21 and the second ring 214. At this time, if the outside of the first ring 211 is partially lifted to deform it together with the body 213 and the spout 21 is pulled out, the operator can pull out the inner container 2 without touching the contents. It is. The first ring 211 is difficult to deform to some extent, but will deform if force is applied to it. Thereafter, a new inner container 2 can be inserted into the tank 4 without cleaning it, and the tank 4 can be reused. Furthermore, even if some contents remain inside the inner container 2 during replacement, it can be taken out and disposed of without contaminating other equipment.

According to the present invention, since the first ring 211 rides on the external receiving surface of the spout receiving base 41 while maintaining its ring shape, the inner container 2 does not fall into the tank 4 during assembly or removal. Further, after taking out the contents, the used inner container 2 can be removed by pulling the spout 21 out of the tank 4, and can be easily replaced with a new inner container 2. At this time, there is no need to clean the inner surface of the tank 4. In addition, since the inner container 2 and the airtight container 1 are double airtight spaces, the contents can be sealed airtightly, and since the inner container 2 is surrounded by a pressure-resistant tank 4, the inner container 2 can be opened from the inside. Even if pressurized, the inner container 2 will not be damaged. Furthermore, since the inner surface of the tank 4 does not come into contact with the contents or external substances, it does not corrode.

<Modified example>

The spout may be without the second ring 214. The spout is preferably integrally molded, but parts such as the body and the ring may be integrated by adhesive or the like, as long as they are firmly connected. When the inner container is manufactured by integrally molding the bag and the spout, the second ring 214 is not provided. When joining the spout to the bag, the spout is not limited to the heat sealing method of the embodiment, but other joining methods such as using an adhesive may be used. The spout can be attached to the bag at an appropriate position depending on the internal shape of the storage container and the shape of the bag, and the attachment position does not have to be at the position shown in FIG. When used in an ultra-high pressure tank, the spout may be made of copper or the like. Even if it is a metal, copper or the like has flexibility, and depending on the contents, it has corrosion resistance. Further, the tank 4 may be provided with an air vent if necessary, or may not be provided.
In the embodiment of the present application, the first ring 211 of the spout 21 is made thicker than the body 213 and the second ring 214, so that the body 213 and the second ring 214 are easy to expand, and the first ring 211 has high sealing performance. . However, the adhesion between the spout receiving base 41 and the second ring may be improved by making only the second ring thinner, such as by making the first ring and body thinner by 1 mm and the second ring by 0.5 mm. Furthermore, the spout receiving base 41 may be made such that the first ring and the second ring are 1 mm, the body is 0.5 mm, or the first ring is 1 mm, the body is 0.5 mm, and the second ring is 1.5 mm. The adhesion of the body may be improved. The first ring and the body may be 1 mm thick, and the second ring may be 1.5 mm thick. It is preferable that the thickness of the first ring is greater than or equal to the thickness of the body, even when the second ring is not present. However, depending on the shape and pressure of the tank etc., the thickness of the first ring may be made thinner than the thickness of the body.

If the airtight container is used only for storage, the spout holder may be a lid without the siphon tube 311 and the pressurized gas inlet 312, or the holder, which is the lid, may have an opening for putting in and taking out the contents. good. The spout presser may not be separated into the presser member 31 and the cover nut 32, but may be integrated. In this case, attachment and detachment of the spout holder is simplified and facilitated.

In order to easily attach and detach the spout 21, a closable opening may be provided in the tank 4. Air enters and exits through the opening, making it easier to attach and detach the bag 22. If the opening is made sufficiently large, it is also possible to adjust the shape of the bag 22 by inserting a hand or the like. Alternatively, an opening for a second spout receiving base may be provided, and the second spout 21 may be provided in the inner container 2 in correspondence with the second spout receiving base 41. The spout receiving base 41 may be located below the tank 4 in addition to above, or may be located only below. When the spout receiving base 41 and the spout 21 are provided below the tank 4, the contents can be taken out by its own weight. There may be three or more spout receiving bases 41 and spouts 21, and a plurality of internal containers 2 having spouts 21 may be installed in one tank 4.
The O-ring 313 is a flexible cushioning material made of resin or rubber, but may also be made of metal or the like. Although it is shown as a donut-shaped thin ring in FIG. 5, it may be a flat ring or the like. Further, the O-ring 313 and the groove for attaching the O-ring 313 may be omitted, and the structure may include only the holding member. At this time, a convex portion may be provided on the contact surface of the holding member with the spout 21 to increase surface pressure and improve sealing performance, or similarly, a convex portion may be provided on the contact surface of the first ring 211 with the holding member. The sealing performance may be improved by increasing the surface pressure.

The material of the spout holder is not limited to corrosion-resistant metals such as stainless steel, but may be made of resin, ceramics, wood, etc. as long as it has pressure resistance against the working pressure and corrosion resistance against the contents.
Further, the spout presser may be pressed by a cam lock type instead of being pressed by screwing. In this case, the first ring is pressed from above and sealed using a cam-lock type spout holder corresponding to the spout holder 3 of the embodiment. As a result, as in the embodiment, a double airtight space can be created in the airtight container, including an airtight space between the spout holder, the first ring, and the inner container, and an airtight space between the spout holder, the first ring, and the tank. With the cam lock type, the container can be sealed without rotating the spout holder at all.
Further, as the lid by pressing the spout, a crown cap type may be used to lightly press the lid, or the container may be sealed using a method such as a snap fit that does not apply much pressure to the spout 21. In these cases, airtightness can be ensured in applications where pressure resistance is not required, such as when transporting or preserving food.

The external storage container does not need to be a pressure-resistant container like the tank 4 of the embodiment, and does not need to be airtight, but it is preferable that it is a container that can maintain its shape, such as a metal container or a hard resin container. preferable. Typically, in addition to iron tanks, drum cans, Itto cans, and plastic tanks are considered. When using an existing storage container such as a drum can, a spout shaped to match the cap may be used, or a spout receiving base shaped to be attachable to the cap may be used. When storing acids, solvents, paints, powders, etc. for long periods of time, containers are required to have corrosion resistance rather than pressure resistance. Since the airtight space provides a high level of sealing, the inner surface of the external container is protected and does not corrode. Also in this case, it is possible to replace the inner container instead of cleaning.

In the present invention, when an airtight container is not used as the external container, the airtight space is only inside the inner container. Even if the external container is not airtight, the high airtightness of the internal container prevents the contents from deteriorating, leaking, and entering external substances, and the internal container can be easily replaced. In this case, as the external container, for example, a basket-shaped container or the like can be used.

After inserting the bag 22 into the tank 4 and before filling it with contents, attach the holding member 31 to the tank 4, and then inject pressurized gas through the pressurized gas inlet 312 or the like to inflate the bag 22 in advance. The contents may be filled after the inside of the tank 4 is covered. In this case, the force due to the load of the contents is less likely to be applied to the bag 22, and filling is performed with the bag 22 in close contact with the top of the tank 4, so that the filling capacity of the contents can be maximized.
Alternatively, the pressurized gas inlet may be provided in the tank portion covering the bag 22 instead of the spout holder 3, and the bag 22 may be compressed by pressurizing the space between the tank and the bag 22 when pressing out the contents. good.
At this time, the siphon tube 311 may be omitted, and a frame-like or net-like structure may be provided instead of the siphon tube 311 so that the bag 22 is not squeezed out together with the contents.

1 airtight container, 2 internal container, 21 spout, 211 first ring, 212 first open end, 213 body, 214 second ring, 215 second open end, 22 bag, 221 opening, 3 spout presser, 31 presser member , 311 siphon pipe, 312 pressurized gas inlet, 313 O-ring, 314 flange part, 315 thick part, 32 cover nut, 321 internal thread, 322 wrench action part, 323 push part, 4 tank, 41 spout receiving base, 411 External screw

Claims (2)

A storage container having a spout receiving base and a spout holder ,
When an inner container in which a spout and a bag are joined is inserted and the inner container is filled with contents with the spout installed on the spout receiving base, the air vent has an openable and closable air vent from which the air inside is discharged;
holding the spout between the spout receiving base and the spout holder;
A siphon pipe is connected to the spout holder, and a pressurized gas inlet is provided.
A storage container and a spout holder for a fire extinguishing system , characterized by: an inner container in which a spout and a bag are joined;
A storage container having a spout receiving base;
Equipped with a spout holder ,
In the storage container, when the internal container is inserted into the storage container and the internal container is filled with contents with the spout installed on the spout receiving base, air in the storage container is exhausted. It has an air vent that can be opened and closed freely.
holding the spout between the spout receiving base and the spout holder;
A siphon pipe is connected to the spout holder, and a pressurized gas inlet is provided.
An airtight container for a fire extinguishing system characterized by:

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