JP2018203339A - Cap for high airtightness storage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap for a highly airtight storage container capable of maintaining a high degree of airtightness for a long time by using a general screw cap. SOLUTION: A cap body 10 to be screwed to a screw portion P1 of a screw cap body P is provided. A ring body 20 to be attached to the outer periphery of the body P2 of the screw cap bottle P is provided. An O-ring 30 that fits on the outer circumference of the body P2 of the screw cap bottle P is provided. A covering portion 12 and a male screw portion 13 are formed on the cap body 10. A female screw portion 21 and a locking portion 22 are formed on the ring body 20. The cap body 10 and the ring body 20 are screwed together via the O-ring 30. The O-ring 30 seals the gap between the cap body 10 and the outer circumference of the body P2. [Selection diagram] Fig. 1

Description

  The present invention relates to a cap for a highly airtight storage container that can be covered with a general screw mouth bottle and can maintain high airtightness for a long time.

  Vials are used as drug reaction containers and storage containers. Patent Document 1 describes a vial cap that is closed by inserting a rubber stopper into the flange-shaped mouth of the vial. This cap seals the opening of the vial with a rubber stopper and prevents the rubber stopper from coming out with a cap attached to the flange-shaped mouth of the vial.

  On the other hand, Patent Document 2 discloses a highly airtight storage container that seals a container main body having an elongated cylindrical bottle opening. This container is formed with a ring-shaped concave groove in a cylindrical bottle mouth, and an O-ring is provided on the inner side of a cap fitted on the bottle mouth, and the O-ring is fitted into the ring-shaped concave groove. And a structure for enhancing the sealing performance of the cap.

Japanese Patent No. 5997451 Japanese Patent No. 5963106

  However, the vial cap described in Patent Document 1 has a configuration in which a rubber stopper is inserted into the mouth portion of the vial and is closed, so that the rubber stopper is in direct contact with the liquid stored in the vial. Therefore, it is not suitable for storage of a solvent having a property of dissolving the rubber material, and there is a disadvantage that the liquid that can be stored is limited by the properties of the liquid.

  In addition, since the vial is a special bottle that has a rubber stopper inserted, covered with an aluminum seal, and uses a hand clipper to increase the sealing force, the screw bottle with a generally used screw cap is used. It was a configuration that could not be used. That is, in high airtight storage containers, screw mouth bottles that can be covered with screw type caps are widely used rather than vial bottles sealed with hand clippers. The use of a screw mouth bottle was desirable.

  On the other hand, the highly airtight storage container described in Patent Document 2 has a special shape adopting a configuration in which a ring-shaped concave groove is formed in the bottle mouth portion of a glass screw mouth bottle. For this reason, it is difficult to manufacture the glass container and the manufacturing cost is increased.

  Therefore, the present invention was created to solve the above-mentioned problems, and aims to provide a cap for a highly airtight storage container that can maintain high airtightness for a long time using a general screw mouth bottle. To do.

  In order to achieve the above-mentioned object, the first means in the present invention includes a cap body 10 having a fixing screw portion 11 screwed to a screw portion P1 of a screw mouth bottle P used as a highly airtight storage container, and a screw mouth. Highly airtight storage provided with a ring body 20 mounted on the outer periphery of the body P2 of the bottle P, and an O-ring 30 disposed between the cap body 10 and the ring body 20 and closely contacting the outer periphery of the body P2 of the screw mouth bottle P. The cap body 10 includes a cover portion 12 that covers the outer periphery of the body P2 of the screw mouth bottle P, and a male screw portion 13 that is provided on the outer periphery of the cover portion 12. A female screw portion 21 that is screwed to the male screw portion 13 of the main body 10, and a locking portion 22 that is locked to the lower surface of the O-ring 30 and presses the O-ring 30 toward the cap main body 10 when the female screw portion 21 is screwed. With an O-ring When screwing the cap body 10 and the ring member 20 through a 0, it is an O-ring 30 is configured to seal the gap between the fuselage P2 periphery and the cap body 10.

  The second means is that a disc-shaped lubricating material sleeve 40 is disposed between the locking portion 22 of the ring body 20 and the O-ring 30, and the locking material 40 is interposed via the lubricating material sleeve 40. The portion 22 is configured to press the O-ring 30 toward the cap body 10 side.

  The third means is to form a crimp end 14 to which the O-ring 30 is crimped at the lower end of the covering portion 12 of the cap body 10, and to form an inclined surface on the crimp end 14. The O-ring 30 crimped to 14 is configured to be in close contact with the body P2 side of the screw mouth bottle P along the inclined surface.

  The fourth means is that an opening 15 is formed at the top of the cap body 10 and a sealing lid 50 for covering the opening 15 is provided.

  The fifth means is formed by extending a body covering portion 23 covering the outer periphery of the body P2 of the screw mouth bottle P on the ring body 20.

  As in claim 1 of the present invention, when the cap body 10 and the ring body 20 are screwed through the O-ring 30, the O-ring 30 seals the gap between the cap body 10 and the outer periphery of the body P2. Therefore, it is possible to maintain a high degree of airtightness for a long time using a general screw mouth bottle.

  According to the second aspect of the present invention, the engaging portion 22 is configured to press the O-ring 30 toward the cap body 10 via the slipping sleeve 40, so that the gap between the cap body 10 and the outer periphery of the body P2 is within the gap. The O-ring 30 can be uniformly crimped. As a result, higher sealing performance can be obtained.

  Since the O-ring 30 crimped to the crimping end 14 is in close contact with the body P2 side of the screw mouth bottle P along the inclined surface as in claim 3, the elastically deformed O-ring 30 is In particular, it is possible to obtain higher sealing performance by being in close contact with the body P2 side.

  The cap body 10 suitable for a wider range of use is provided by extending the opening 15 at the top of the cap body 10 and providing the sealing lid 50 that covers the opening 15. be able to.

  When the body covering portion 23 covering the outer periphery of the body P2 of the screw mouth bottle P is formed on the ring body 20 as in claim 5, the body P2 of the screw mouth bottle P can be protected and the bottom is not flat. The use of a special screw mouth bottle P is also possible.

It is sectional drawing of the use condition which shows one Example of this invention. It is a principal part expanded sectional view which shows one Example of this invention. It is a disassembled perspective view of the use condition which shows one Example of this invention. It is a disassembled perspective view of the use condition which shows the other Example of this invention. It is sectional drawing of the use condition which shows the other Example of this invention. It is a side view of the use condition which shows other Example of this invention. FIG. 7 is a cross-sectional view taken along line VII-VII shown in FIG. 6. It is a principal part notch sectional view of the use condition which shows other Example of this invention.

  The cap of the present invention is a cap for covering the screw mouth bottle P that is generally used as a highly airtight storage container. As this screw-mouth bottle P, for example, it is a septic to seal a highly airtight storage container called a screw tube used as a liquid sample tube or the like in a highly airtight state.

  The main structure of the cap of the present invention includes a cap body 10, a ring body 20, and an O-ring 30. Furthermore, a slipping sleeve 40 may be added if necessary.

  The cap body 10 is a member provided with a fixing screw portion 11 that is screwed to the screw portion P1 of the screw mouth bottle P (see FIG. 1). The cap body 10 further includes a covering portion 12 that covers the outer periphery of the body P2 of the screw mouth bottle P, and a male screw portion 13 that is provided on the outer periphery of the covering portion 12 (see FIG. 2).

  The ring body 20 is a ring-shaped member that is mounted on the outer periphery of the body P2 of the screw mouth bottle P (see FIG. 1). The ring body 20 includes an internal thread portion 21 that is screwed to the external thread portion 13 of the cap body 10, and is locked to the lower surface of the O-ring 30 when the internal thread portion 21 is screwed so that the O-ring 30 is attached to the cap body 10 side. And a locking portion 22 that presses against (see FIG. 3).

  The O-ring 30 is disposed between the cap main body 10 and the ring body 20 and is fitted and adhered to the outer periphery of the body P2 of the screw mouth bottle P. When the cap body 10 and the ring body 20 are screwed through the O-ring 30, the O-ring 30 is configured to seal the gap between the cap body 10 and the outer periphery of the body P2 (see FIG. 1). .

  At this time, the ring body 20 can be uniformly tightened by disposing the disc-shaped lubricant sleeve 40 between the locking portion 22 of the ring body 20 and the O-ring 30 (see FIG. 2). . That is, when the O-ring 30 is pressed to the cap body 10 side through the sliding sleeve 40 formed of polytetrafluoroethylene or the like, the locking portion 22 of the ring body 20 slides along the sliding sleeve 40 while the O-ring 30 slides along the sliding sleeve 40. The ring 30 is gradually pressed. As a result, the biased elastic deformation of the O-ring 30 can be prevented.

  In the example of illustration, the crimping | compression-bonding edge part 14 is formed in the coating | coated part 12 lower end part of the cap main body 10 (refer FIG. 2). The crimping end portion 14 is a portion for crimping the O-ring 30, and the crimping end portion 14 has an inclined surface. When the O-ring 30 is crimped to the crimping end 14, the O-ring 30 is elastically deformed along the inclined surface of the crimping end 14 toward the body P2 side of the screw mouth bottle P, and the body P2 and the covering portion 12 is configured so as to be in close contact with the gap.

  As a result, the O-ring 30 further seals the gap between the body P2 and the covering portion 12 while the screw portion P1 of the screw mouth bottle P is screwed by the fixing screw portion 11 of the cap body 10. It is possible to keep extremely high airtightness for a long time. In addition, the tightening force of the ring body 20 screwed to the male screw portion 13 of the cap body 10 is transmitted to the fixing screw portion 11 of the cap body 10 screwed to the screw portion P1 of the screw mouth bottle P. The effect | action which raises the fixing force of the part 11 is also show | played.

  4 to 8 show another cap body 10. The cap body 10 is formed by forming an opening 15 at the top of the cap body 10 and providing a sealing lid 50 that covers the opening 15 (see FIG. 4). In the illustrated example, the female screw part 16 is formed on the inner peripheral surface of the opening 15, and an auxiliary plug 51 that is screwed to the female screw part 16 is provided in the sealing lid 50 (see FIG. 5). Further, the sealing force of the sealing lid 50 is enhanced by the O-ring 52 provided at the upper part of the auxiliary stopper 51 and the O-ring 53 provided at the lower end of the auxiliary stopper 51 (see FIG. 5).

  Further, FIGS. 6 to 8 show another ring body 20. The ring body 20 is formed with a body covering portion 23 that covers the outer periphery of the body P2 of the screw mouth bottle P. In the illustrated example, a window portion 23A is formed in the body covering portion 23 so that the internal body P2 can be confirmed (see FIG. 6).

  Furthermore, the lower end part of the trunk | drum coating part 23 is formed so that it may extend below the trunk | drum P2 of the screw mouth bottle P (refer FIG. 7). By forming such a body covering portion 23, for example, it is possible to stand and store even a screw mouth bottle P whose bottom portion is not flat (see FIG. 8).

  In the cap of the present invention, the configuration, shape, material and the like of the cap body 10, the ring body 20, the O-ring 30 and the like can be arbitrarily selected, and are not limited to the illustrated examples. The design can be changed as long as it is not changed. Further, the screw mouth bottle P is not limited to the illustrated example, and can be arbitrarily selected from screw mouth bottles generally used as a highly airtight storage container.

P Screw mouth bottle P1 Screw part P2 Body 10 Cap body 11 Fixing screw part 12 Covering part 13 Male thread part 14 Crimp end part 15 Opening part 16 Female thread part 20 Ring body 21 Female thread part 22 Locking part 23 Body covering part 23A Window part 30 O-ring 40 Lubricant sleeve 50 Sealing lid 51 Auxiliary stopper 52 O-ring 53 O-ring

Claims (5)

A cap body having a fixing screw portion to be screwed to a screw portion of a screw mouth bottle used as a highly airtight storage container, a ring body mounted on the outer periphery of the body of the screw mouth bottle, and between the cap body and the ring body A highly airtight storage container cap provided with an O-ring closely attached to the outer periphery of the body of the screw mouth bottle,
The cap body includes a covering portion that covers the outer periphery of the body of the screw mouth bottle, and a male screw portion that is provided on the outer periphery of the covering portion,
The ring body includes an internal thread portion that is screwed to the external thread portion of the cap body, and an engagement portion that is engaged with the lower surface of the O-ring and presses the O-ring toward the cap body side when the internal thread portion is screwed.
A cap for a highly airtight storage container, wherein the O-ring seals the gap between the cap body and the outer periphery of the body when the cap body and the ring body are screwed through the O-ring.   A disc-shaped lubricant sleeve is disposed between the locking portion of the ring body and the O-ring, and the locking portion causes the O-ring to be placed on the cap body via the lubricant sleeve. The highly airtight storage container cap according to claim 1, wherein the cap is configured to be pressed.   A crimp end to which the O-ring is crimped is formed at the lower end portion of the covering portion of the cap body, an inclined surface is formed at the crimp end, and the O-ring crimped to the crimp end is along the inclined surface. The highly airtight storage container cap according to claim 1, wherein the cap is configured to be in close contact with the body side of the screw mouth bottle.   The highly airtight storage container cap according to claim 1, wherein an opening is formed at the top of the cap body, and a sealing lid is provided to cover the opening.   The cap for a highly airtight storage container according to claim 1, wherein a body covering portion that covers an outer periphery of the body of the screw mouth bottle is formed to extend on the ring body.

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