JP3064446U - Drug evaporation container - Google Patents

Abstract

(57) [Summary] [Problem] When the pressure in a pressure chamber becomes abnormally high, a chemical capable of quickly escaping the internal pressure to the outside through a slit-shaped cut and a paper board to reliably prevent the explosion of the can container itself. It is to provide a transpiration container. SOLUTION: A minute chamber for communicating a pressure chamber (7) and the outside with a flange portion (6a) of an inner cylinder (6) and preventing leakage of a heating agent (4) stored in the pressure chamber (7). Slit-shaped cuts (8) are formed at appropriate intervals, and a paper board (9) for closing the entire opening of the inner cylinder (6) including the flange portion (6a) is provided. A paper plate (9) facing the opening is provided with a plurality of vaporized gas discharge holes (10), and the discharge holes (10) are laminated to heat seal the paper plate (9) to the inner cylinder flange portion (6a). And it is closed by a thin film (11) of a thermoplastic resin which is broken by a heating action or a vaporized gas pressure.

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention belongs to the technical field related to a drug evaporation container.

[0002]

2. Description of the Related Art An inflow hole for water is provided in a bottom plate fixedly wound around a lower portion of a metal outer cylinder, and an exothermic agent which generates heat by chemically reacting with water such as quicklime contained in the upper surface of the bottom plate. To prevent water from leaking to the outside and to provide a sheet that is soluble or permeable to water, while being integrated at the top of the outer cylinder with the upper end of the smaller and shorter metal inner cylinder. The formed flange is fastened and fastened, and a plurality of score lines, which are easy to open like a score and have explosion-proof properties, are engraved on the flange and a flange width between the outer and inner cylinders is cut. 2. Description of the Related Art A drug evaporation container in which a pressure chamber having a space is formed and a drug which evaporates due to heat generation in an inner cylinder is housed is generally known. (See Japanese Patent Publication No. 8-5507)

[0003]

[Problem to be Solved by the Invention] In this type of drug evaporation container, water is poured into a suitable water receiving container to a specified depth, and the bottom of the drug evaporation container is placed in the water receiving container. As a result, water is absorbed into the exothermic agent (quick lime) through the hole at the bottom of the chemical evaporation container, and heat is generated. However, if the amount of water is deeper than specified, heat generation proceeds rapidly and the internal pressure rises abnormally. Due to the danger of explosion, drug manufacturers attach instructions for use that specify the prescribed water usage.However, in practice, users have to use a rough In many cases, the amount to be used is determined, and it is used in a dangerous state at present, and no explosion-prevention measures have been taken for conventional chemical vaporization containers of this kind. Therefore, in the prior art, the drug evaporation container is constituted by an inner and outer double cylinder, a passage function for inducing an internal pressure between the two cylinders, and an internal pressure induced through the passage function for intensive storage at a certain location. In order to eliminate the danger of explosion by providing a notch line for pressure relief that is destroyed by an increase in internal pressure in this storage action part, The wire was not guaranteed to be broken from the cut paper part due to defects in can making, and sometimes the cut line was broken by the internal pressure and the container itself exploded.

[0004] An object of the present invention is to, when the pressure in the pressure chamber becomes abnormally high, quickly release the internal pressure to the outside through the slit-shaped cutout and the paper board to reliably prevent the explosion of the can container itself. To provide a drug evaporation container.

[0005]

Means for Solving the Problems The object of the present invention is to provide an inflow hole for water in a bottom plate fixedly fastened to the lower part of a metal outer cylinder, and to provide water and chemicals such as quicklime contained in the upper surface of the bottom plate. It prevents the exothermic agent that generates heat upon reaction from leaking out, and inserts a sheet that is soluble or permeable to water, while a smaller and smaller metal is placed on top of the outer cylinder. A flange integrally formed on the upper end of the inner cylinder is wound and fixed, and a pressure chamber having a space of the flange width is formed between the outer cylinder and the inner cylinder. In the accommodated drug evaporation container, the pressure chamber and the outside communicate with the flange of the inner cylinder, and minute slit-shaped cuts are formed at appropriate intervals to prevent leakage of the heating agent contained in the pressure chamber. At the same time, close the entire opening of the inner cylinder including this flange. A paper board to be closed is provided, and a plurality of evaporative gas discharge holes are provided on the paper board facing the opening of the inner cylinder, and the discharge holes are laminated to heat-seal the paper board to the inner cylinder flange, and heated. Achieved by closing with a thin film of thermoplastic resin that breaks by action or transpiration gas pressure.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the present invention will be described with reference to the drawings.

As shown in FIG. 1 and FIG. 2, the embodiment of the can container is such that the outer periphery of a metal bottom plate 3 having a plurality of relatively large water inflow holes 2 is provided below a metal outer cylinder 1. In addition to preventing the exothermic agent 4 that generates a chemical reaction with water, such as an appropriate amount of quicklime contained in the outer cylinder 1, from leaking out onto the upper surface of the bottom plate 3 and allows the water to flow. A sheet 5 such as a nonwoven fabric is stuck.

The sheet 5 such as a nonwoven fabric may be, for example, a polyvinyl alcohol water-soluble nonwoven fabric, and may be any material having water permeability. Therefore, the material is not specified.

Reference numeral 6 denotes a metal inner cylinder, and the inner cylinder 6 is smaller in diameter and shorter than the outer cylinder 1. A horizontal flange portion 6a is integrally formed on the outer periphery of the upper end of the inner cylinder 6, and the outer periphery of the flange portion 6a is fixedly wound around the upper portion of the outer cylinder 1.

Between the outer cylinder 1 and the inner cylinder 6, a pressure chamber 7 having a space having the width of the flange portion 6 a of the inner cylinder 6 is formed, and an appropriate amount of quicklime 4 is stored in the pressure chamber 7. You.

A small slit-shaped cut 8 that can communicate with the pressure chamber 7 and the outside and prevents leakage of quicklime 4 accommodated in the pressure chamber 7 is formed at an appropriate interval in the flange portion 6 a of the inner cylinder 6. Formed.

As shown in FIGS. 3 and 4, reference numeral 9 denotes a paper plate for closing substantially the entire area of the flange 6 a of the inner cylinder 6 and the entire area of the opening of the inner cylinder 6. A plurality of discharge holes 10 having a relatively large diameter and for discharging a vaporized drug gas to the outside are provided in a portion facing the.

A thin film 11 of a thermoplastic resin for laminating all the discharge holes 10 and heat-sealing the flange portion 6 a of the inner cylinder 6 is laminated on the entire lower surface of the paper board 9. The thin film 11 is easily broken by heat or gas pressure of gas evaporated in the closed space 6b of the inner cylinder 6 closed by the paper plate 9.

In the closed space 6 b of the inner cylinder 6, an appropriate amount of the evaporating agent 12 that is gasified by the heat of the quicklime 4 is sealed. Examples of the transpiration drug 12 include drugs for controlling cockroaches and house mites.

[0015]

[Explanation of operation] The drug evaporation container of the present invention is usually enclosed in a bag (not shown) using aluminum foil. Break this bag and take out the container. Next, an appropriate amount of water in a water bag provided in a window-equipped container (not shown) is poured, and the drug evaporation container is placed in the window-equipped container. The water and quicklime 4 flowing through the inflow holes 2 and the sheet 5 provided in the bottom plate 3 of the chemical vaporization container cause a chemical reaction to generate heat. When this heat is transmitted to the inner cylinder 6 and heats the vaporized medicine 12 in the inner cylinder 6, the vaporized medicine 12 generates gas by a thermal reaction, and the thin film 11 laminated on the paper board 9 by this heating action or gas pressure. Is broken, and is discharged to the outside through the discharge hole 10.

When the thermal reaction is high and the pressure in the pressure chamber 7 becomes abnormally high, the pressure breaks through the paper board 9 through the slit-shaped cut 8 and escapes to the outside, and the explosion of the container itself is surely prevented. It is prevented by.

[0017]

[Effect of the Invention] As described above, according to the configuration of the present invention, the following effects can be obtained.

Since slit-shaped cuts are formed at appropriate intervals in the flange portion of the inner cylinder, the abnormal pressure in the pressure chamber can be reliably released to the outside as compared with the conventional technique in which score lines such as scores are provided. Inconvenience due to the explosion can be rationally prevented.

Since the slit-shaped cut formed in the flange portion of the inner cylinder is usually closed by a paper board, the exothermic agent does not inadvertently undergo a chemical reaction due to external moisture or moisture and does not generate heat. , Long-term preservation becomes possible and anxiety is prevented.

The vaporized chemical in the closed space of the inner cylinder is shut off from the outside air by the paper plate and the thin film laminated thereon, so that the gasification reaction is reliably ensured.

[Brief description of the drawings]

FIG. 1 is a perspective view of a container before containing a vaporized medicine.

FIG. 2 is a vertical sectional front view of FIG.

FIG. 3 is a perspective view of the container immediately before use.

FIG. 4 is an enlarged sectional view of a main part in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer cylinder 2 Inflow hole 3 Bottom plate 4 Quicklime 5 Sheet 6 Inner cylinder 6a Flange part 6b Closed space 7 Pressure chamber 8 Cut 9 Paper board 10 Release hole 11 Thin film 12 Evaporating chemical

Claims (1)

[Utility model registration claims] 1. A bottom plate fixedly fastened to a lower portion of a metal outer cylinder is provided with a water inflow hole, and a heat generating agent which generates heat by chemically reacting with water such as quicklime contained in the upper surface of the bottom plate. And a water-soluble or water-permeable sheet is interposed between them, while being formed integrally with the upper end of the outer cylinder at the upper end of the smaller and shorter metal inner cylinder. A drug vaporization container in which a flange portion is fixedly fastened, a pressure chamber having a space of a flange width is formed between the outer cylinder and the inner cylinder, and a medicine evaporating by heat generation is stored in the inner cylinder. Part communicates the pressure chamber with the outside, and
Along with forming minute slit-shaped cuts at appropriate intervals to prevent leakage of the exothermic agent accommodated in the pressure chamber, a paper board that closes the entire opening of the inner cylinder including this flange is provided. A plurality of evaporative gas discharge holes are provided on the paper plate facing the opening, and the discharge holes are laminated for heat sealing the paper plate to the inner cylinder flange portion, and a thermoplastic resin which is broken by a heating action or a vapor gas pressure. A drug evaporation container closed by a thin film.