JP3069658U - High airtight storage container - Google Patents

Abstract

(57) Abstract: A taper (1B) that inclines inward is formed at the opening edge of an opening (1A) of a container body (1) for storing various reagents. A sealing plug 2 is provided to fit inside the opening 1A to prevent the organic solvent from volatilizing the various reagents. Around the sealing plug 2, a sealing gasket 3 that comes into contact with the taper 1B of the mouth 1A is attached. On the other hand, a fixing cap 4 having screwing means for screwing into the mouth 1A of the container body 1 is provided. With the pressing force of the fixing cap 4, the packing 3 in contact with the taper 1B is pressed into the inside of the mouth 1A. According to the present invention, it is possible to have an extremely high hermeticity-retaining ability, to make the reagent concentration reliable, and to reduce the loss of expensive various reagents. Can store any reagent.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a highly airtight storage container suitable for storing various reagents such as prepared standard reagents, volatile reagents, valuable reagents and the like which are mainly used in experiments and the like.

[0002]

[Prior art]

 Conventionally, as this type of storage container, a container in which various reagents are inserted into the mouth of the container body so that the shaft portion of the sealing stopper can be freely opened and closed via a screwing means of a female screw portion and a male screw portion, The shaft of the sealing plug is screwed into the mouth of the container so as to be openable and closable through the press-fitting means of the cylindrical press-fitting hole and the cylindrical press-fitting, or the shaft of the sealing plug is screwed into the mouth of the container body. It is known that a part is screwed openably and closably through sealing means such as rubber packing.

However, since the volatilization of various reagents and organic solvents contained in the container body cannot be reliably prevented, not only is the concentration of the standard reagent unreliable, but also the loss of expensive various reagents is reduced. There were inconveniences such as an increase in size.

[0004] In order to solve this inconvenience, the present applicant has previously devised a highly airtight storage container for preventing the volatilization of various reagents and organic solvents (see Japanese Utility Model Registration No. 3049372). In the above invention, a sealing stopper for sealing the mouth of the container body is formed in two stages, upper and lower, and a sealing stopper for sealing the mouth of the container body and a large sealing stopper for sealing the opening of the sealing stopper. Each employs a structure of sealing with a screwing means and a press-fitting means.

[0005]

[Problems to be solved by the invention]

 Since the highly airtight storage container previously devised employs a screwing means for the two sealing stoppers, it was necessary to mold the sealing stopper with a synthetic resin material such as Teflon for processing. However, some reagents and organic solvents dislike contact with this synthetic resin material, which leaves inconvenience in use, such as having to avoid storing such reagents and organic solvents. I was

In addition, in order to perform complete sealing, attention must be paid to the use of two sealing plugs, for example, the two sealing plugs must be securely tightened.

Therefore, the present invention has been devised in order to solve the above-mentioned problems, and has an extremely high hermeticity retention capability, provides a reliable reagent concentration, and reduces the loss of expensive various reagents. An object of the present invention is to provide a highly airtight storage container that can be reduced in size and that is easy to operate.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the first means of the present invention is to form a taper 1B which inclines inward at the opening edge of the mouth 1A of the container body 1 for storing various reagents, and to form a taper inside the mouth 1A. A sealing plug 2 is provided to prevent the various solvents from evaporating the organic solvent, and a sealing packing 3 is fitted around the sealing plug 2 to abut against the taper 1B of the mouth 1A. A fixing cap 4 having a screwing means for screwing into the mouth 1A is provided, and the packing 3 in contact with the taper 1B is pressed into the inside of the mouth 1A by the pressing force of the fixing cap 4. .

A second means is to provide a locking step 2A on the peripheral side surface of the sealing plug 2, and lock the packing 3 press-fit into the taper 1B to the locking step 2A.

Further, a third means mounts a pressing ring 5 on the lower surface of the top plate 4 A of the fixed cap 4, and press-fits the packing 3 with the pressing ring 5.

A fourth means is to provide a locking portion 2 B at the upper end of the sealing plug 2, and to form a through hole 4 B through which the upper end of the sealing plug 2 passes through the top plate 4 A of the fixed cap 4. The release ring 6 attached around the sealing plug 2 on the upper surface of the top plate 4A is locked to the locking portion 2B of the sealing plug 2 and the sealing plug in the mouth 1A is released by a fixing cap released from the mouth 1A. Extracting 2 is a means to solve the problem.

According to the present invention, the container body 1 is hermetically sealed by the fitting portion between the inner surface of the mouth 1A of the container body 1 and the outer surface of the hermetic plug 2 fitted into the mouth 1A. Furthermore, when the fixing cap 4 is tightened and fixed to the mouth 1A, the pressing ring 5 pressed against the inner surface of the top plate 4A of the fixing cap 4 presses the packing 3. Then, the pressed packing 3 is pressed into the taper 1B provided at the opening edge of the mouth 1A. Further, the packing 3 press-fitted into the taper 1B is press-fitted to the locking step 2A of the sealing plug 2 and locked to the locking step 2A. The packing 3 locked on the locking step 2 </ b> A seals the boundary between the mouth of the container body 1 and the sealing plug 2.

[0013]

[Embodiment of the invention]

 Hereinafter, an embodiment of the highly airtight storage container of the present invention will be described with reference to the drawings.

Reference numeral 1 shown in the figure is a container body for storing various reagents such as prepared standard reagents, volatile reagents, valuable reagents and the like used in experiments and the like. The opening edge of the mouth 1A of the container body 1 is formed with a taper 1B that is inclined inward (see FIG. 2). The taper 1B is a portion to which a packing 3 described later is crimped. The container body 1 is formed as a glass bottle, and the inner surface of the mouth 1A is mirror-finished. A sealing stopper 2 is inserted into the inner surface of the mouth 1A to prevent the evaporation of the organic solvent of various reagents.

The sealing plug 2 is formed of a glass material or a ceramic material, and has an outer surface fitted to the inner surface of the mouth 1A with a mirror finish similar to that of the mouth 1A. A locking step 2A is provided on the peripheral side surface of the sealing plug 2, and when the sealing plug 2 is fitted into the mouth 1A, the packing 3 is locked to the locking step 2A (see FIG. 3). ).

When the packing 3 is press-fitted into the taper 1B of the mouth 1A, the packing 3 is locked to the locking step 2A. The packing 3 is mounted around the sealing plug 2, and in the illustrated example, is mounted on a substantially bar-shaped knob 2 </ b> C provided above the sealing plug 2 (see FIG. 1). The packing 3 is pressed against the taper 1B by the pressing force of the fixing cap 4 fixed to the mouth 1A of the container body 1.

The fixing cap 4 has a screwing means for screwing into the mouth 1A of the container body 1 and is fixed to the mouth 1A of the container body 1 (see FIG. 1). The top plate 4A of the fixing cap 4 is provided with a through hole 4B through which the upper end of the sealing plug 2 passes. The upper end of the sealing plug 2 is inserted through the through hole 4B and screwed to the mouth 1A. At this time, a pressing ring 5 is arranged on the lower surface of the top plate 4A, and the pressing ring 5 comes into contact with the packing 3 and press-fits the packing 3.

The pressing ring 5 is mounted around the sealing stopper 2. When the fixing cap 4 is tightened by the container body 1, the pressing ring 5 is pressed by the top plate 4 A of the fixing cap 4 and press-fits the packing 3. At this time, the pressing ring 5 is formed of a synthetic resin material such as Teflon, which has good slippage, so that the packing 3 is not biased in the rotational direction of the fixing cap 4.

The release ring 6 is used to pull out the sealing plug 2 fitted in the mouth 1A from the mouth 1A. The release ring 6 is engaged with a locking portion 2B provided at the upper end of the knob 2C of the sealing plug 2, and is mounted around the sealing plug 2. When the fixing cap 4 is removed from the mouth 1A, the release ring 6 is pressed by the upper surface of the top plate 4A of the fixing cap 4 and the sealing plug 2 is pulled out. The release ring 6 is also made of a synthetic resin material such as Teflon, similar to the pressing ring 5, so that the release ring 6 can be easily attached to and detached from the knob 2C provided with the locking portion 2B. .

[0020]

[Effect of the invention]

 The present invention has achieved the original object by being configured as described above.

That is, a taper 1B is formed at the opening edge of the mouth 1A of the container body 1 for containing various reagents, and is tapered inward toward the inside, and is fitted inside the mouth 1A to volatilize the organic solvent of the various reagents. A sealing gasket 2 for prevention is provided, and a sealing gasket 3 for abutting on the taper 1B of the mouth 1A is mounted around the sealing watercock 2 and screwed into the mouth 1A of the container body 1 by a screwing means. A fixing cap 4 for fixing the sealing plug 2 to the mouth 1A of the container body 1 is provided, and the pressing force of the fixing cap 4 presses the packing 3 in contact with the taper 1B toward the inside of the mouth 1A. The packing 3 was pressed into the taper 1B to maintain airtightness, and successfully provided a highly airtight storage container having extremely high airtightness. Therefore, the reagent concentration can be made reliable, and the loss of various expensive reagents can be reduced.

Moreover, since airtightness can be maintained only by tightening the fixing cap 4, the operability is remarkably improved as compared with the conventional highly airtight storage container in which the two hermetic stoppers must be securely tightened.

Further, since the structure of the sealing plug 2 is a simple structure that only fits into the mouth 1A of the container body 1, the sealing plug 2 is made of a synthetic resin such as Teflon like a conventional sealing plug employing screwing means. There is no need to use materials, and glass materials and ceramics can be used. As a result, all reagents can be stored, and the inconvenience of use such as avoiding the storage of reagents or organic solvents which dislike contact with the synthetic resin material has been eliminated.

When the sealing plug 2 is fitted into the mouth 1A, a locking step 2A for locking the packing 3 pressed into the taper 1B of the mouth 1A is provided on the peripheral side surface of the sealing plug 2. Since the packing 3 locked to the locking step 2A firmly fixes the sealing plug 2 and seals the boundary between the mouth of the container body 1 and the sealing plug 2, the airtight performance can be further improved. Can be.

Furthermore, since the packing 3 is pressed by the pressing ring 5 attached to the lower surface of the top plate 4 A of the fixed cap 4, the packing 3 is prevented from being pressed in a biased manner in the rotation direction of the fixed cap 4, and stable. Since the packing 3 is crimped in this state, airtightness can be reliably maintained.

An engaging portion 2 B is provided at the upper end of the sealing plug 2, and a through hole 4 B through which the upper end of the sealing plug 2 penetrates is provided in the top plate 4 A of the fixed cap 4. The release ring 6 attached around the hermetic plug 2 on the upper surface is locked to the locking portion 2B of the hermetic plug 2, and the hermetic plug 2 in the mouth 1A is pulled out with a fixed cap released from the mouth 1A. Thus, the handling of the hermetic stopper 2 could be simplified.

As described above, according to the present invention, it is possible to store all kinds of reagents, to have extremely high airtightness, to make the concentration of reagents reliable, and to reduce the loss of expensive reagents. This has a practically useful effect, for example, it is possible to reduce the size.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the highly airtight storage container of the present invention.

FIG. 2 is an exploded perspective view of the highly airtight storage container of the present invention.

FIG. 3 is an enlarged sectional view of a main part showing a packing of the highly airtight storage container of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 1A mouth 1B taper 2 Sealing stopper 2A Locking step 2B Locking part 2C Knob 3 Packing 4 Fixing cap 4A Top plate 4B Through-hole 5 Pressing ring 6 Release ring

Claims (4)

[Utility model registration claims] 1. A sealing plug for forming a taper which inclines inward at an opening edge of an opening of a container body for storing various reagents, and which is fitted inside the opening to prevent evaporation of the organic solvent of the various reagents. Provided around the sealing plug, fitted with a sealing gasket that comes into contact with the taper of the mouth, while providing a fixed cap having a screwing means to screw into the mouth of the container body,
A highly airtight storage container characterized in that packing pressed against the taper is pressed by the pressing force of the fixing cap. 2. A locking step is provided on a peripheral side surface of the sealing plug,
The highly airtight storage container according to claim 1, wherein the packing press-fitted into the taper is locked to the locking step. 3. The highly airtight storage container according to claim 1, wherein a pressing ring is attached to a lower surface of the top plate of the fixing cap, and the packing is crimped with the pressing ring. 4. A stopper is provided at an upper end of the sealing plug, a through hole is provided in a top plate of the fixing cap, and an upper end of the sealing plug penetrates therethrough. The highly airtight storage container according to any one of claims 1 to 3, wherein the mounted release ring is locked to the locking portion of the sealing plug, and the sealing plug in the mouth is extracted with a fixing cap released from the mouth.