WO2016163712A1

WO2016163712A1 - Middle- or large-capacity airtight container

Info

Publication number: WO2016163712A1
Application number: PCT/KR2016/003506
Authority: WO
Inventors: 손정완
Original assignee: (주) 이레머티리얼스
Priority date: 2015-04-07
Filing date: 2016-04-05
Publication date: 2016-10-13
Also published as: JP2016199323A; JP6240702B2; TWI571413B; KR101660932B1; TW201636278A; CN105857880B; CN105857880A

Abstract

The purpose of the present invention is to provide a middle- or large-capacity airtight container which enhances sealing between a stopper and a neck part and prevents loosening of the stopper coupled to the neck part, thereby preventing leakage of contents. The present invention provides a middle- or large-sized airtight container comprising a stopper and a bottle. The stopper comprises a skirt part having a first thread formed on the inner surface thereof; a cover part for closing one end of the skirt part; and an annular protrusion part which is protrusively formed on the inner surface of the cover part. The bottle comprises a neck part which has a second thread on the outer surface thereof so as to be screw-coupled to the first thread of the skirt part, and through which contents can pass. When the stopper is coupled to the neck part of the bottle, the annular protrusion part is positioned inside the neck part. Here, a groove is formed on the outer surface of the annular protrusion part that faces the inner surface of the neck part, and the stopper further comprises an O-ring which is disposed in the groove.

Description

Medium and large capacity sealed containers

Embodiments of the present invention relate to a medium-large capacity sealed container.

In general, a hermetically sealed container may be used to package chemicals such as photoresists used in LCD processes. Since these chemicals are expensive and harmful to the human body, they should not be inferior in confidentiality during storage or during transportation such as domestic long distance transportation or overseas export.

However, in the case of such a conventional container for sealing, the pad is attached to the inside of the stopper to increase the sealing property, but the plastic container has a certain time no matter how strong the locking through the screw fastening of the stopper and the neck part due to the characteristics of the material. For example, after a day or so, the tightening strength between the plug and the neck may be loosened, and leakage may occur between the pad portion of the plug and the end of the neck, which in turn may lead to environmental problems and economic losses. Can be.

In addition, compared to a container used for drinking water bottles, etc., in the case of a container containing chemicals, the capacity is, for example, a medium-large capacity of 20 to 40 L, and the inner diameter of the neck portion is, for example, about 4 to 5 cm, There is a problem that the neck portion is not molded to a perfect circle. Therefore, it is generally difficult to apply the sealing means applied to a beverage bottle made of low-density polyethylene (LDPE) as it is to the sealing of a sealed container of medium and large capacity.

(Patent Document 1) Republic of Korea Patent Publication No. 10-0223995 (1999. 07. 12.)

(Patent Document 2) Korean Utility Model Publication No. 20-0183809 (2000. 03. 17.)

(Patent Document 3) Republic of Korea Patent Publication No. 10-2007-0110000 (Nov. 15, 2007)

(Patent Document 4) Republic of Korea Patent Publication No. 10-1233851 (2013. 02. 08.)

Embodiments of the present invention, to improve the sealing between the stopper and the neck portion, and to provide a medium-large capacity sealed container that can prevent the leakage of the contents by preventing the stopper of the fastener fastened to the neck portion.

However, the technical problem to be achieved by the present invention is not limited to the above-mentioned problem, another task that is not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, a stopper having a skirt portion formed with a first screw thread on the inner side, a lid portion closing one end of the skirt portion, and an annular protrusion formed to protrude from the inner side of the lid portion; And a bottle having a neck formed on the outer side thereof so as to be screwed with the first thread of the skirt portion, and having a neck portion through which contents can pass, wherein the stopper includes the neck of the bottle. When it is fastened to the part, the annular projection is located inside the neck portion, wherein a groove is formed on the outer surface of the annular projection facing the inner surface of the neck portion, the stopper is further provided with an O-ring disposed in the groove To provide a medium to large closed container.

An inclined surface may be formed at an end portion of the inner surface of the neck portion.

The inclined surface of the neck portion may have an angle of 10 to 30 degrees outward with respect to the projecting direction of the neck portion.

When the stopper is fastened to the neck portion of the bottle, the O-ring may be pressed onto the inclined surface of the neck portion.

The cross-sectional shape of the O-ring may be circular.

The stopper further includes a locking protrusion formed inside the annular wall of the open end of the skirt portion, wherein the bottle further includes a latch tooth formed at a lower end of the neck portion, and the stopper further includes the neck of the bottle. When fastened to the part, the latching projection can be caught by the latch teeth, and the stopper can be suppressed from rotating in the fastening release direction.

The latch teeth may be formed in the neck portion portion between two tangents which contact the outer surface of the neck portion in parallel with each other.

The bottle may be manufactured by blow molding from a high-density polyethylene (HDPE) material.

The outer surface of the skirt portion is formed in parallel with the extending direction of the skirt portion, and may further include an outer projection that can be inserted into the projection insertion groove formed in the holder of the torque wrench.

Further, according to another embodiment of the present invention, a stopper having a skirt portion formed with a first screw thread on the inner side, a lid portion closing one end of the skirt portion, and an annular protrusion formed to protrude from the inner side of the lid portion. ; And a bottle having a neck formed on the outer side thereof so as to be screwed with the first thread of the skirt portion, and having a neck portion through which contents can pass, wherein the stopper includes the neck of the bottle. When the part is fastened to the annular projection, the annular projection is positioned inside the neck. At this time, an inclined surface is formed on an inner surface of the neck portion facing the annular projection, a groove is formed on the inclined surface, and the bottle is disposed in the groove. A medium-large closed container is further provided, which further includes an O-ring.

1 is a partially cutaway perspective view of the closure of the container for sealing according to an embodiment of the present invention,

Figure 2 is a partially cutaway perspective view of the lower side of the closure of the container for sealing according to an embodiment of the present invention,

Figure 3 is a partially cutaway perspective view of the closure of the closure container according to an embodiment of the present invention is fastened to the neck portion of the bottle,

4 is a partial plan view of the bottle of the container for sealing according to an embodiment of the present invention,

5 is an enlarged cross-sectional view of an end portion of the neck portion in a state where the closure of the container for closure according to the embodiment of the present invention is fastened to the neck portion;

6 is a partially cutaway perspective view of the O-ring and the pad of the container for sealing according to an embodiment of the present invention;

Figure 7 is a perspective view of a torque wrench for locking or unlocking the stopper of the closure container according to an embodiment of the present invention in the neck portion.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is only an example and the present invention is not limited thereto.

In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or an operator. Therefore, the definition should be made based on the contents throughout the specification.

The technical spirit of the present invention is determined by the claims, and the following embodiments are merely means for efficiently explaining the technical spirit of the present invention to those skilled in the art.

Referring to FIG. 1, a partially cutaway perspective view is shown from an upper side of a stopper 10 of a container for sealing according to an embodiment of the present invention. Referring to FIG. 2, a container for sealing according to an embodiment of the present invention. A partially cutaway perspective view and a partial enlarged view, as seen from the bottom of the stopper 10, is shown. 3 is a partially cutaway perspective view of a stopper 10 and a bottle 30 of the closed container 50 according to an embodiment of the present invention in a coupled state, and the neck portion of the bottle 30 ( The body to which 31 is connected is shown only in part.

As shown in Figures 1 to 3, the medium-large sealing container 50 according to an embodiment of the present invention is provided with a stopper 10, and the neck portion 31 to which the stopper 10 is screwed Bottle 30 is included. The bottle 30 of the airtight container 50 is a medium-large capacity, such as a bottle of 20 to 40 L, that can contain a high purity chemical such as a photosensitive agent used in LCD manufacturing, such that no leakage occurs, or The container 50 is also made of HDPE (in order to prevent particles and metal ion extraction from occurring in high-purity chemicals, and for chemical resistance, strength and cost reduction of the container). It is a high-density polyethylene material and can be manufactured in various shapes by blow molding.

The stopper 10 of the container 50 for sealing according to an embodiment of the present invention may be manufactured by injection in a HDPE material, the skirt portion 11 is formed with a screw thread 14 on the inner side, the skirt portion The cover part 12 which closes the end of 11 is provided, and the annular protrusion part 13 formed so that it may protrude in the inner surface of this cover part 12 is provided. This annular protrusion 13 is arranged at regular intervals from the skirt 11.

The stopper 10 is rotated by screwing the screw thread 14 of the skirt portion 11 to the screw thread 32 formed on the outer surface of the neck portion 31 of the bottle 30, which will be described later, so that contents such as liquid pass through. The contents may be injected into the bottle 30, or may be fastened to the neck portion 31, from which the contents may be discharged from the bottle 30.

As described above, in the state where the stopper 10 is fastened to the neck portion 31, the annular protrusion 13 is formed to be inserted into the neck portion 31, and the inner surface of the neck portion 31 is formed. An annular groove 16 is formed on the outer surface of the annular projection 13 to be viewed, and the stopper 10 further includes an O-ring 17 inserted into the annular groove 16. The O-ring 17 may be compressed to the inner surface of the neck portion 31 when the stopper 10 is fastened to the neck portion 31, and thus, the stopper 10 of the contents contained in the bottle 30. Leakage through can be minimized. In particular, even if the diameter of the neck portion 31 is large and manufactured in a shape other than a round shape during injection molding, the O-ring 17 may cover such a tolerance, so that the leak prevention effect may be improved. In addition, the o-ring 17 may have a circular cross section as shown in FIG. 6, so that the sealing ring may be formed by gently inserting the stopper 10 into the neck portion 31. In addition, the O-ring 17 may be made of ethylene propylene diene monomer (EPDM) material for chemical resistance to chemicals contained in the airtight container 50.

In the above description, in the case of the medium-large closed container 50 according to an embodiment of the present invention, one o-ring 17 is disposed in the annular protrusion 13 of the stopper 10, but is not limited thereto. It is also possible for two or more o-rings to be arranged in two or more respective grooves.

The stopper 10 may further include a pad 19 disposed between the skirt portion 11 and the annular protrusion 13. As illustrated in FIG. 6, the pad 19 may have a rectangular cross section, and may be made of, for example, low-density polyethylene foam (LDPE foam). In addition, when the stopper 10 is fastened to the neck portion 31 of the bottle 30, the pad 19 may be pressed to the end of the neck portion 31. Therefore, even if there is liquid passing through the seal portion of the neck portion 31 and the o-ring 17, the leakage of this liquid can be prevented by the sealing between the pad 19 and the end of the neck portion 31. .

In addition, the stopper 10 may further include an external protrusion 21 provided on the outer surface of the skirt portion 11. The external protrusion 21 is inserted into the protrusion insertion groove 63 of the holder 62 of the torque wrench 60 (see FIG. 7), which will be described later, so that the torque wrench 60 can rotate the stopper 10.

In addition, the stopper 10 may further include an annular wall 15 formed at the end of the skirt portion 11. On the inner side surface of the annular wall 15, the locking projections 18 are formed at regular intervals. When the stopper 10 is completely fastened to the neck part 31, the locking protrusion 18 may be provided to be caught by the latch teeth 33 of the neck part 31, which will be described later. It is possible to obtain a fixed effect when locked in 31). Therefore, the phenomenon that the fastening to the neck portion 31 of the stopper 10 can be prevented even by an external force such as vibration or the like, for example, a stopper that can be generated during transportation of the medium-large sized container 50 ( 10) Leakage of contents through can be prevented.

The locking projections 18 may be arranged at a constant angle α, for example about 10 °, as shown in FIG. 2. In addition, the locking projection 18 is formed in the front end of the locking rotation direction (counterclockwise in FIG. 2) of the stopper 10, the inclined surface 182 is inclined at a predetermined angle β, for example, 30 °, A locking surface 181 may be formed at the rear end of the stopper 10 in the locking rotation direction. According to such a configuration, when the stopper 10 is completely fastened to the neck portion 31, the locking surface 181 is caught by the locking surface 135 (see FIG. 4) of the latch tooth 33, which will be described later. ) Can be maintained as it is.

4, a partial plan view of the neck portion 31 of the bottle 30 of the hermetic container 50 according to one embodiment of the present invention is shown.

As shown in FIGS. 3 and 4, a latch tooth 33 may be formed at a lower end of the neck portion 31 with a direct or arc-shaped root portion 36 interposed therebetween. The latch teeth 33 may, for example, be arranged to be spaced apart by a predetermined angle α, ie by the spacing of the locking projections 18. In addition, the range of formation of the latch tooth 33 is the neck portion 31 between two parallel tangents in contact with the neck portion 31 so that the bottle 30 can be easily taken out, for example, when injection molded. ) May be formed on the part.

As for the latch tooth 33, the locking surface 135 is formed in the front-end | tip of the locking rotation direction (clockwise direction in FIG. 4) of the stopper 10, and it is convex, for example at the rear end of the locking rotation direction of the stopper 10, for example. An inclined curved surface 134 may be formed. According to such a structure, when the stopper 10 is locked, the inclined surface 182 of the latching projection 18 of the corresponding stopper 10 slips over the inclined curved surface 134 of the latch tooth 33, or vice versa. When the stopper 10 tries to rotate in the unlocked direction, the locking surface 181 of the locking projection 18 of the stopper 10 is caught by the locking surface 135 of the latch tooth 33, Rotation in the unlocking direction can be suppressed.

Referring to FIG. 5, a partially enlarged view of an end region of the neck portion 31 in a state where the stopper 10 and the neck portion 31 of the medium-large sized container 50 according to an embodiment of the present invention are fastened to each other. Is shown.

As shown in FIG. 5, an inclined surface 34 is formed on the inner side surface of the end portion of the neck portion 31. The inclined surface 34 may have a predetermined angle γ to the outside with respect to the projecting direction of the neck portion 31, for example, an angle of 10 to 30 °. In addition, the O-ring 17 attached to the groove 16 of the annular projection 13 of the stopper 10 is exposed to the outside of the groove 16 when the stopper 10 is completely fastened to the neck portion 31. The portion of the O-ring 17 may protrude outward from the inner surface other than the inclined surface 34 of the neck portion 31, and is pressed against the inclined surface 34 and compressed. According to such a structure, since the inclined surface 34 is at the end part of the neck part 31, when the stopper 10 is fastened to the neck part 31, it is applied to the O-ring 17 by the neck part 31. As shown in FIG. The stress is reduced and can be smoothly inserted into the neck 31. That is, when the stopper 10 is fastened to the neck portion 31, the stopper 10 proceeds toward the inner side of the bottle 30 along the neck portion 31, and the inclined surface 34 of the neck portion 31 is formed. Since the diameter decreases toward the inside of the bottle 30, the O-ring 17 is in line contact with the inclined surface 34 of the neck portion 31 at the initial stage of the locking of the stopper 10, so that the neck portion 31 is smoothly without large resistance. Can be inserted into and moved, and the line contact with the inclined surface 34 is switched to the surface contact toward the inside of the bottle 30 to increase the surface contact area, and the contact pressure also increases, the O-ring Sealing on the inclined surface 34 of (17) can be maximized. In addition, in the case of a medium-large container, the neck portion 31 has a large diameter, and even when the neck portion 31 is not molded to a perfect round shape during molding, the neck portion goes from the end of the neck portion 31 toward the inside of the bottle 30. Since the diameter of the 31 is reduced, the dimensions of the o-ring 17 can be determined so as to overcome such tolerances of the neck 31 so that the sealing between the neck 31 and the o-ring 17 is more certain. Can be secured.

5, the cross section of the groove 16 into which the O-ring 17 is inserted is formed in a direction perpendicular to the extending direction of the annular protrusion 13, but is not limited thereto. The extending direction of the annular protrusion 13 is not limited thereto. It may be formed to be inclined with respect to, for example, perpendicular to the inclined surface 34.

In addition, in the above description, the groove 16 is formed in the outer surface of the annular projection 13 in an annular shape, but is not limited to this, a plurality of grooves 16 are formed in the annular projection 13 at regular intervals and The o-ring 17 may be disposed in the groove 16 by providing a projection (not shown) in the o-ring 17 and inserting it into the groove 16.

In addition, in FIG. 5, the cross section of the O-ring 17 is circular, but for example, the portion protruding to the outside of the groove 16 is the same as FIG. 5, but the portion not protruding to the outside of the groove 16 is the groove ( It may have a cross-sectional shape corresponding to the cross-sectional shape of 16). In this case, the adhesion to the inclined surface 34 of the O-ring 17 may be further improved.

In addition, a second inclined surface 36 may be formed on the outer surface of the end portion of the neck portion 31.

* Referring to Figure 7, a perspective view of a torque wrench 60 for locking or unlocking the stopper 10 fastened to the neck portion 31 of the medium-large-size sealing container 50 according to an embodiment of the present invention Is shown.

As shown in FIG. 7, the torque wrench 60 includes a holder 62 that can be extrapolated to the stopper 10, and a lever 61 connected to the holder 62. The inner surface of the holder 62 is formed with a projection insertion groove 63 into which the outer projection 21 of the stopper 10 can be inserted. When the operator rotates the lever 61, the holder 62 is rotated. The rotational force can be transmitted to the stopper 10. The length of the lever 61 may be determined in consideration of the torque required to lock or unlock the stopper 10.

When the stopper 10 is in the locked state, the locking surface 181 of the locking protrusion 18 is caught by the locking surface 135 of the latch tooth 33, and the rotation of the stopper 10 is suppressed. At the time of unlocking 10, at least one of the locking protrusion 18 and the latch tooth 33 of the stopper 10 may be damaged.

Further, in the above description, the O-ring 17 is disposed in the annular projection 13 of the stopper 10, while the O-ring 17 is disposed in a groove (not shown) formed in the inclined surface 34 of the neck portion 31. May be In this case, an inclined surface or a convex portion corresponding to the inclined surface 34 of the neck portion 31 may be formed on the outer surface of the annular protrusion 13 of the plug 10 instead of the groove 16.

In the medium and large closed container 50 according to the embodiment of the present invention configured as described above, the inclined surface 34 is formed on the inner surface of the end of the neck portion 31, the annular projection 13 of the stopper 10 When the stopper 10 is fastened to the neck portion 31 by the O-ring 17 mounted on the groove 16 of the outer side surface of the neck, the O-ring 17 receives less stress from the inner side of the neck portion 31. Receiving can be smoothly inserted along the inner surface of the neck portion 31, when the stopper 10 is fully fastened to the neck portion 31, the portion of the O-ring 17 protruding outward of the groove 16 is inclined surface ( Since it is pressed while the surface contact 34, the leakage of the contents through the inner surface of the neck portion 31 and the O-ring 17 can be prevented. In particular, in the case of a medium-large container containing chemicals, the diameter of the neck portion 31 is large, so that it is difficult to form a perfect circle, but even in this case, the O-ring 17 on the inclined surface 34 inside the neck portion 31. Since the size can be determined so as to be strongly pressed against the inclined surface 34 while being inserted inside the neck portion 31 smoothly, leakage of the contents in the bottle 30 can be reliably prevented. In addition, when the stopper 10 is completely fastened to the neck portion 31, the locking protrusion 18 of the stopper 10 is loosened by the latch teeth 33 of the neck portion 31 by interacting with each other. This can be prevented, so that the sealing between the o-ring 17 and the inner side of the neck portion 31 can be maintained until the opening of the stopper 10. Therefore, even if the medium-large sized container 50 is stored for a long time, the leakage can be prevented even by the vibration generated during transportation.

As described above, the present invention has been described with reference to the embodiments, but it is possible to make other various modifications other than the above-described modifications without departing from the technical spirit of the present invention. It will be apparent to those who have it.

In addition, the substitution or modification of the components shown in the present invention to the technical elements that perform a known similar function will be apparent to those skilled in the art, or belong to the common sense.

Therefore, the technical scope of the present invention to the scope of the claims should not be limited to the described embodiments, but extends to the spirit and equivalents shown in the claims below.

Explanation of the sign

10: stopper

11: skirt

12: cover part

13: annular projection

14: screw thread

15: annular wall

16: home

17: O-ring

18: jamming projection

181: engaging surface

182: slope

19: pad

21: outside projection

30: bottle

31: neck

32: thread

33: ratchet protrusion

34: slope

36: root portion

60: torque wrench

61: lever

62: holder

63: protrusion insertion groove

134: sloped surface

135: hanging surface

Claims

A stopper including a skirt portion having a first screw thread formed on an inner side thereof, a lid portion closing one end of the skirt portion, and an annular protrusion formed to protrude from the inner side of the lid portion; And

A second thread is formed on an outer side of the skirt to be screwed with the first thread and includes a bottle having a neck portion through which contents can pass;

When the stopper is fastened to the neck portion of the bottle, the annular projection portion is located inside the neck portion, wherein a groove is formed in the outer surface of the annular projection portion facing the inner side of the neck portion,

The stopper further comprises an O-ring disposed in the groove, medium and large sealing container.
The method according to claim 1,

A medium-large sized container having an inclined surface formed at an end portion of the inner side of the neck portion.
The method according to claim 2,

The inclined surface of the neck portion has a medium-large size closed container having an angle of 10 to 30 degrees outward with respect to the projecting direction of the neck portion.
The method according to claim 2,

When the stopper is fastened to the neck portion of the bottle, the O-ring is pressed on the inclined surface of the neck portion, medium and large hermetic container.
The method according to claim 4,

The cross-sectional shape of the O-ring is circular, the groove is a medium-large closed container, which is formed annularly to the annular projection.
The method according to claim 1,

The stopper is,

It further comprises a locking projection formed inside the annular wall of the open end of the skirt portion,

The bottle,

Further provided with a latch tooth formed in the lower end of the neck portion,

When the stopper is locked to the neck portion of the bottle and locked, the locking projection is caught in the latch teeth, it is suppressed that the stopper is rotated in the unlocking direction.
The method according to claim 6,

The latch tooth is formed in a portion of the neck portion between the two tangents in contact with the outer surface of the neck portion in parallel with each other.
The method according to claim 1,

The bottle is made of high-density polyethylene (HDPE) by blow molding, medium and large closed container.
The method according to any one of claims 1 to 8,

The stopper is,

The outer side of the skirt portion is formed in parallel with the extending direction of the skirt portion, further comprising an outer projection that can be inserted into the projection insertion groove formed in the holder of the torque wrench, medium-large size closed container.
A stopper including a skirt portion having a first screw thread formed on an inner side thereof, a lid portion closing one end of the skirt portion, and an annular protrusion formed to protrude from the inner side of the lid portion; And

A second thread is formed on an outer side of the skirt to be screwed with the first thread and includes a bottle having a neck portion through which contents can pass;

When the stopper is fastened to the neck portion of the bottle, the annular projection portion is located inside the neck portion, wherein an inclined surface is formed on the inner surface of the neck portion facing the annular projection portion, and a groove is formed on the inclined surface. ,

The bottle is a medium-large closed container further comprises an O-ring disposed in the groove.