JP4166470B2 - Powder injection container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a powder injection container, and is applied to, for example, a powder fire extinguisher.
[0002]
[Prior art]
In preparation for fire, fire extinguishers are installed in buildings and houses. There are various types of fire extinguishers depending on the extinguishing agent and mechanism. Generally, a fire extinguisher filled with a powder fire extinguisher is widely used. When the lever of the pressure vessel is gripped, the injection nozzle opens and the powder extinguisher is injected by the pressure of the compressed gas.
[0003]
[Problems to be solved by the invention]
However, in such a conventional powder fire extinguisher, a large amount of powder is ejected by a single lever operation during fire extinguishing, so that the fire extinguishing agent diffuses over a wide range. For this reason, the fire extinguishing agent is scattered in a place away from the fire source, and the work such as cleaning after the fire extinguishing becomes troublesome. When precision equipment is placed around the fire source, fire extinguishing agents may cause equipment failure. For these reasons, conventionally, it has not been possible to easily use a fire extinguisher for initial fire extinguishing.
On the other hand, if there is a powder injection container that injects an appropriate amount of powder fire extinguishing agent into the fire source in a simple operation, fire extinguishing activities can be carried out without hesitation in an emergency prepared in a building or house. .
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a powder injection container capable of repeatedly and appropriately injecting an appropriate amount of powder such as a fire extinguishing agent to a target location.
Another object of the present invention is to provide a powder fire extinguisher using the powder injection container.
[0005]
[Means for Solving the Problems]
Therefore, the powder injection container according to the present invention is
A powder container;
An injection nozzle for injecting the powder in the powder container to the outside;
A partition valve for partitioning the interior of the powder container into a filling chamber and a loading chamber, and guiding powder from the filling chamber to the loading chamber;
An air pump for opening the gate valve by pressurizing the air in the filling chamber and ejecting the powder in the loading chamber from the injection nozzle is provided.
The gate valve may be a check valve that opens a valve body from the filling chamber to the loading chamber.
The gate valve may include a tongue-shaped valve body made of an elastic material. The tongue-shaped valve body includes, for example, valve bodies such as a bowl shape, a U shape, a V shape, and a U shape. Moreover, the number of valve bodies may be singular or plural.
Moreover, the said gate valve is good to provide the tongue-shaped valve body which consists of an elastic material divided | segmented into the circumferential direction by the incision extended radially from a center part.
Furthermore, it is preferable that the gate valve includes a partition net for blocking “dama” of the powder moving from the filling chamber to the loading chamber.
[0006]
The fire extinguisher according to the present invention for solving the above problems is configured by filling the powder injection container with a powder fire extinguisher.
[0007]
According to the powder injection container of the present invention, after the powder container is filled with the powder, the powder container is reversed or shaken up and down or left and right, so that a part of the powder is filled into the filling chamber. To the loading chamber through the gate valve. In this state, when the injection nozzle is aimed at the target and the air pump is operated, the compressed air in the filling chamber opens the gate valve, and the powder in the loading chamber is blown out from the injection nozzle.
By repeating such an operation, an appropriate amount of powder in the filling chamber can be ejected from the loading chamber in a small amount.
[0008]
If there is no gate valve in the powder container, the powder accumulates at the bottom of the container when the spray nozzle is directed upward. For this reason, even if compressed air is sent, it becomes difficult to eject powder from an injection nozzle. In particular, such a problem occurs when the remaining amount of powder is small. In the powder injection container of the present invention, even when the remaining amount of powder is small, a certain amount of powder can be collected in the loading chamber through the gate valve, so that it is free from the influence of the direction of the injection nozzle. The powder can be reliably sprayed in any direction.
[0009]
When compressed air is sent from the filling chamber to the loading chamber, if there is a gate valve in the air passage, the valve body may be in the way and sufficient injection pressure may not be obtained. If the injection pressure is too low, it is difficult to make the powder reach the target. In the present invention , the gate valve includes a tongue-shaped valve body made of an elastic material that is divided in the circumferential direction by cuts extending radially from the center. When compressed air is sent from the filling chamber, the central portion of the valve body is deformed outward against the elastic force, and an air passage is secured in the center of the gate valve. Thus, air is introduced from the filling chamber to the loading chamber at the shortest distance, and a high injection pressure can be obtained.
[0010]
When powder is stored in a powder container, “poaching” may occur in the powder. When the powder in the “dama” state is introduced into the loading chamber, the injection nozzle becomes clogged, making it difficult for the powder to be ejected. In the present invention , the gate valve is configured to include a partition net that blocks “duck” of powder moving from the filling chamber to the loading chamber. As a result, even if a powder “duck” occurs in the filling chamber, it is blocked by the mesh of the partitioning mesh or hits the mesh surface and the “duck” is crushed, making it difficult for the injection nozzle to be clogged in the loading chamber. Moreover, the foreign material which exists in powder can be sieved with a partition net | network.
[0011]
Here, the gate valve includes a valve body of the present invention, it is desirable that the check valve comprising a partition network of the present invention. That is, the filling chamber side of the valve body of the present invention, powder partition network of the present invention into the loading chamber from the filling chamber by providing adjacent may When check valve to be moved. According to such a check valve, it is possible to realize a high-performance powder injection container that reliably holds powder in the loading chamber and jets powder at high pressure.
[0012]
The powder injection container of the present invention may be used as a container for injecting powders of deodorants, fragrances, seasonings and the like in addition to being used as a powder fire extinguisher container. Moreover, it can also be used as a crime prevention instrument by filling powders, such as a visual stimulant. Furthermore, in fields such as horticulture and crop cultivation, they may be used as powder spray containers for fertilizers (synthetic fertilizers, soil conditioners, etc.) and agricultural chemicals (herbicides, insecticides, etc.).
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
A powder injection container according to the first embodiment is shown in FIG.
The powder injection container 1 includes a powder container including a container body 2 and a nozzle case 3. The container body 2 is integrally provided with a bellows type air pump 6, and a lid 7 for opening and closing the inlet of the container body 2 is provided at the upper end thereof. An injection nozzle 4 is provided at the lower end of the nozzle case 3. A nozzle cap 5 is attached to the tip of the injection nozzle 4.
Legs 8 are formed below the nozzle case 3. The powder container is supported in an upright state by raising the legs 8 on a table surface such as a table.
[0014]
A gate valve 10 is provided inside the powder container. The partition valve 10 partitions the powder container into a filling chamber S1 and a loading chamber S2.
[0015]
The gate valve 10 includes a valve body 12 and a partition net 13. A partition net 13 is disposed at a position adjacent to the valve body 12 on the side of the filling chamber S1. The peripheral end portions of the valve body 12 and the partition net 13 are sandwiched and fixed between the container body 2 and the nozzle case 3.
[0016]
As shown in FIG. 2, the valve body 12 is made of an elastic material such as rubber (natural rubber, synthetic rubber, etc.), resin / plastic (elastomer, vinyl, synthetic fiber, etc.), and is radiating from the center of the disk surface. It divides | segments in the circumferential direction by the notch | A fan-shaped tongue 12a is formed between these cuts.
A vent hole H is provided at the center of the valve body 12. As will be described later, the air hole H is filled with only air without causing the residual powder in the loading chamber S2 to flow back into the filling chamber S1 by the air sucked from the injection nozzle 4 side when the air pump 6 is returned. It plays the role of sending to room S1.
On the surface of the tongue 12a, a plurality of protrusions 12b for preventing powder from slipping or preventing adhesion are formed. In addition, the protrusion part 12b is not necessarily required and it may replace with the protrusion part 12b and may form a hollow part and a groove part.
[0017]
As shown in FIG. 3, the partition net 13 is formed with a grid-like net member 13b inside a circular frame member 13a. The size of the mesh K is about several mm. When the powder passes through the gate valve 10, even if “dama” is included, it is blocked by the mesh K, so that it is not sent to the loading chamber S 2 as it is.
[0018]
As shown in FIG. 4A, when a load is applied to the valve body 12 from the filling chamber S1 to the loading chamber S2, the tongue 12a is deformed downward in FIG. 4A to open the valve body 12. When the load is released , the tongue 12a returns to the original position by the elastic force and closes the valve body 12. On the other hand, as shown in FIG. 4B, even if a load is applied to the valve body 12 from the loading chamber S2 to the filling chamber S1, the tongue 12a hits the partition net 13 and stops. Absent. Thus, the gate valve 10 functions as a check valve by combining the valve body 12 and the partition net 13.
[0019]
As shown in FIG. 1, grip pieces 6 a and 6 b are formed above and below the air pump 6. By holding the gripping pieces 6a and 6b and expanding and contracting the bellows portion up and down, the air in the filling chamber S1 is pressurized and the compressed air is sent to the loading chamber S2.
[0020]
Next, a usage example of the powder injection container 1 will be described. For example, the powder injection container 1 can be filled with a powder fire extinguisher and used as a fire extinguisher.
As shown in FIG. 1, the lid 7 of the container body 2 is opened, and a powder fire extinguisher is charged into the filling chamber S1 from the charging port. When the lid 7 is closed and the powder extinguisher is shaken up and down, the gate valve 10 is loaded with the powder extinguisher, the valve body 12 is opened, and a part of the powder extinguisher enters the loading chamber S2. Normally, the powder injection container 1 is provided in a kitchen or the like where a fire is likely to occur with the powder fire extinguisher stored in the loading chamber S2.
[0021]
When a fire occurs, the powder injection container 1 is turned upside down as shown in FIG. 5, and the powder extinguishing agent in the filling chamber S1 and the loading chamber S2 is moved to the lower part of FIG. In such a state, the nozzle cap 5 is removed, and the air pump 6 is pushed vigorously with the spray nozzle 4 facing the fire. Then, the compressed air in the filling chamber S1 opens the gate valve 10 and enters the loading chamber S2, and the powder fire extinguisher in the loading chamber 2 is ejected from the injection nozzle 4.
After the injection, external air enters the loading chamber S2 from the injection nozzle 4, is sucked into the filling chamber S1 through the vent hole H, and the air pump 6 returns to its original state. At this time, even if a part of the powder remains in the loading chamber S2, the valve body 12 is closed, so that the air does not flow back into the filling chamber S1, but only air enters the filling chamber S1 through the vent hole H.
If the fire does not extinguish with a single injection, the powder is again put into the loading chamber S2, and the same operation is repeated to inject the powder fire extinguisher. Even if the powder in the filling chamber S1 is reduced, an appropriate amount of powder can be collected in the loading chamber S2, so that the injection operation with a high powder density can be repeated until there is no powder extinguishing agent in the filling chamber S1.
[0022]
As described above, according to the powder injection container 1, the powder fire extinguisher can be reliably injected to the fire source little by little, so that the area around the fire source does not need to be contaminated extensively. Extinguishing media will reduce the risk of malfunction of precision equipment such as personal computers.
Moreover, since the operation of injection is simple and can be performed immediately, fire extinguishing work can be performed without panic in an emergency.
[0023]
A second embodiment of the present invention is shown in FIG.
The powder injection container 20 is provided with an L-shaped nozzle case 23 below the container body 22. Legs 28 for supporting the powder injection container 1 are formed below the nozzle case 23. An injection nozzle 24 is provided laterally at the tip of the nozzle case 23, and a nozzle cap 25 is detachably attached to the tip.
[0024]
A spindle-shaped air pump 26 made of an elastic material such as rubber or plastic is formed on the container body 22. The lid 27 attached to the inlet of the container body 22 is provided with a check valve 28 that introduces air into the air pump 26 from the outside.
The interior of the powder container is partitioned into a filling chamber S1 and a loading chamber S2 by a gate valve 10. In addition, since the structure and effect | action of the gate valve 10 are the same as that of the said 1st Embodiment, description is abbreviate | omitted.
[0025]
When using the powder injection container 20 of 2nd Embodiment, as shown to the arrow of FIG. 6, compressed air is sent to the loading chamber S2 from the filling chamber S1 by pushing the side surface of the air pump 26. FIG. The powder in the loading chamber S2 is blown out toward the target from the injection nozzle 24 together with the compressed air. After injection, outside air is introduced from the check valve 28 into the filling chamber S1, so that the air pump 26 immediately returns to its original state. Accordingly, the powder can be repeatedly ejected in a short time.
[0026]
A third embodiment of the present invention is shown in FIG.
The powder injection container 30 is provided with a nozzle case 33 above the container body 32. An injection nozzle 34 is provided at the upper end of the nozzle case 33. A nozzle cap 35 is detachably attached to the tip of the injection nozzle 34.
An air pump 36 is provided on the side surface of the container body 32 made of an elastic material. The air pump 36 has a bellows type pump wall formed vertically. When the air pump 36 is pushed in the direction of the arrow in FIG. 7, the pump wall contracts in the circumferential direction and the radial direction, and compressed air is sent from the filling chamber S1 to the loading chamber S2.
In the third embodiment, the function of the air pump may be obtained by the elasticity of a general bottomed cylindrical container without forming a bellows type pump wall.
[0027]
A gate valve 10 is provided inside the powder container to partition the filling chamber S1 and the loading chamber S2. The structure and operation of the gate valve 10 are the same as those in the first embodiment.
[0028]
When using the powder injection container 30, the nozzle case 33 is removed from the container main body 32, and the gate valve 10 is once removed. Next, powder is charged into the filling chamber S 1 from above the container body 32, and the gate valve 10 is fixed between the container body 32 and the nozzle case 33 again.
When the powder in the filling chamber S1 is moved to the loading chamber S2 and the air in the filling chamber S1 is pressurized, the compressed air opens the gate valve 10 and blows the powder in the loading chamber S2 from the injection nozzle 34.
[0029]
According to the third embodiment, since the container body 32 and the nozzle case 33 have a simple configuration, the manufacturing cost can be reduced. It is also convenient for transportation and storage. Furthermore, since the injection nozzle 34 faces upward, there is no fear of powder leakage even if the nozzle cap 35 is removed.
Alternatively, the gate valve 10 may be fixed to the nozzle case 33 so that the nozzle case 33 can be removed integrally. In this case, when the nozzle case 33 is removed, the powder can be directly put into the container main body 32, so that the burden of the powder filling operation is reduced.
[0030]
Although the said 1st-3rd embodiment was demonstrated, embodiment of this invention is not restricted to these, A various change is possible. The shape, size, and the like of the container body and nozzle case can be changed as appropriate according to the application. Moreover, the gate valve does not necessarily need to be a check valve, and may be configured to omit the gate network of the first to third embodiments. As shown by a broken line in FIG. 1, an openable / closable auxiliary nozzle 9 may be provided on the lid 7 of the container body 2 so that the powder is directly discharged from the filling chamber S1.
[0031]
8 and 9 show a modification of the gate valve.
The gate valve 40 includes a partition plate 41 made of an elastic material. A tongue-shaped valve element 41a is formed on the plate surface of the partition plate 41 by an arc-shaped cut M.
As shown in FIG. 9, the gate valve 40 is sandwiched and fixed to the connection portion between the container main body 42 and the nozzle case 43.
When a load is applied from the lower side of the partition plate 41 in FIG. 9, the valve body 41 a is deformed upward and the gate valve 40 is opened. When a load is applied from above the partition plate 41 in FIG. 9, the valve body 41a hits the valve seat portion 42a, and the partition valve 40 is closed.
According to the gate valve 40, since the structure is simple and the number of parts is small, it is useful for reducing the manufacturing cost.
[0032]
10 to 12 show modifications of the injection nozzle.
The injection nozzle 50 shown in FIG. 10 is provided with a throttle 51 at the nozzle outlet. Four injection ports P are formed in the diaphragm 51. The diameter of the injection port P is gradually narrowed toward the nozzle tip.
According to the injection nozzle 50, the powder injection pressure can be improved by the restriction 51.
[0033]
An injection nozzle 60 shown in FIG. 11 is configured such that the injection ports P 1 and P 2 having different diameters can be switched by a slide lid 61. By shifting the notch of the slide lid 61 in the circumferential direction, one of the injection ports P1 and P2 can be selected. If the cutout of the slide lid 61 is moved to a position where the injection ports P1 and P2 do not exist, the injection ports P1 and P2 are closed.
[0034]
On the other hand, the injection nozzle 4 shown in FIG. 12 is provided with the injection ports P1 and P2 side by side at the nozzle outlet. Nozzle caps 71 and 72 are detachably attached to the injection ports P1 and P2. The nozzle caps 71 and 72 can be removed, and the injection port P1 or P2 can be selectively used. Further, the injection ports P1 and P2 may be used simultaneously.
[0035]
【The invention's effect】
As described above, according to the powder injection container of the present invention, the following excellent effects can be obtained.
(a) An appropriate amount of powder can be repeatedly injected to a target location with a simple operation. (b) Since powders such as fire extinguishing agents are not easily scattered over a wide area, there is little effort for cleaning. (c) Since the number of parts can be reduced with a simple configuration, the manufacturing cost can be reduced.
(d) Easy to use and easy to use at home.
(e) Even when the remaining amount of powder decreases, the powder can be sprayed with the spray nozzle directed at a free angle.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view showing a powder injection container according to a first embodiment of the present invention.
FIG. 2 is a plan view showing a valve body of the gate valve according to the first embodiment of the present invention.
FIG. 3 is a plan view showing a partition net of the gate valve according to the first embodiment of the present invention.
4A and 4B show a gate valve according to a first embodiment of the present invention, in which FIG. 4A is a sectional view showing a state in which the valve body is opened, and FIG. 4B is a sectional view showing a state in which the valve body is closed.
FIG. 5 is a partially cutaway side view showing a state in which the powder injection container according to the first embodiment of the present invention is inverted.
FIG. 6 is a partially cutaway side view showing a powder injection container according to a second embodiment of the present invention.
FIG. 7 is a partially cutaway side view showing a powder injection container according to a third embodiment of the present invention.
FIG. 8 is a plan view showing a modification of the gate valve.
9 is a sectional view of the gate valve shown in FIG. 8 in use.
10A and 10B show a modification of the injection nozzle, where FIG. 10A is a cross-sectional view and FIG. 10B is a front view.
FIG. 11 is a front view showing another modification of the injection nozzle.
FIG. 12 is a front view showing another modification of the injection nozzle.
[Explanation of symbols]
1 Powder injection container 2 Container body (powder container)
3 Nozzle case (powder container)
4 Injection nozzle 5 Nozzle cap 6 Air pump 7 Lid 10 Gate valve (check valve)
12 Valve body 13 Partition network S1 Filling chamber S2 Loading chamber H Vent

Claims (3)

A powder injection container comprising a container body provided with an air pump and a nozzle case provided with an injection nozzle,
It is divided into a filling chamber and a loading chamber by a gate valve,
And the gate valve is composed of a partition net on the filling chamber side and a valve body on the loading chamber side,
The partition net is for the powder moving from the filling chamber to the loading chamber. " Dama " Shut off
A powder injection container, wherein the powder loaded in the loading chamber is ejected from the ejection nozzle. The valve body is made of a disk surface of an elastic material,
And this disc surface is divided in the circumferential direction by radially extending incisions, and fan-like tongues are formed between these incisions,
And when the load acts, the tongue portion is deformed to the loading chamber side to open the valve body,
The powder injection container according to claim 1, wherein the tongue is returned by an elastic force to close the valve body as the load is released. The powder injection container according to claim 1, wherein the partition mesh has a lattice mesh size of several millimeters.

Images