TWI571413B - Middle or large-sized watertight container - Google Patents

Description

Medium and large capacity sealed container

The present invention relates to a medium and large capacity sealed container.

In general, a sealing container, for example, is used for packaging chemicals such as photosensitive materials used in an LCD process. Since the chemical is expensive and harmful to the human body, it is not possible to reduce airtightness during transportation during storage or long-distance transportation or overseas output, for example, in Korea.

However, in the conventional container for sealing, a gasket is attached to the back side of the lid to improve the sealing property. However, in the plastic container, even if the screw is bonded by the lid and the neck, the material is locked. After a certain period of time, such as a day or so, the bond strength between the lid and the neck becomes loose, and a gap is created between the gasket portion of the lid and the end of the neck, and then environmental problems are regenerated. Economic losses.

Further, compared with a container used as a beverage bottle or the like, for a chemical-containing container, since the capacity is, for example, a medium-large capacity of 20 to 40 L, the inner diameter of the neck is 4 to 5 cm, and the neck cannot be formed into Perfect round and other issues. Therefore, in general, it is difficult to directly apply a sealing device suitable for a beverage bottle manufactured from low density polyethylene (LDPE: Low-density polyethylene) to a sealed container of a large capacity in sealing.

The purpose of the embodiment of the invention is to provide a medium to large capacity sealing container which improves the seal between the lid and the neck and prevents the lid attached to the neck from being loosened, thereby preventing the contents from leaking.

However, the technical problems to be achieved by the present invention are not limited to the above-mentioned problems, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention provides a medium and large-sized sealing container, comprising: a lid and a bottle, wherein the lid comprises: a skirt having a first spiral formed on the inner side; the lid is closed One end portion of the skirt portion; and the annular protrusion portion formed to protrude to an inner side surface of the cover portion, and the bottle is formed with a second spiral on the outer side surface so as to be opposite to the skirt portion The first spiral is spirally coupled and has a neck capable of passing through the contents, wherein the annular protrusion is formed in the case where the cover is coupled to the neck of the bottle The inside of the neck portion, at this time, a groove is formed on the outer side surface of the annular projection toward the inner side surface of the neck portion, and the cover further has an O-ring disposed in the groove.

In order to achieve the above object, in the present invention, the large-sized sealing container forms an inclined surface at the end portion of the inner side surface of the neck portion.

In order to achieve the above object, the large-sized sealing container of the present invention has an angle of 10 to 30 degrees outward to the outer side of the neck portion in the protruding direction of the neck portion.

In order to achieve the above object, in the case of the large-sized sealing container of the present invention, in the case where the lid is coupled to the neck portion of the bottle, the O-ring is pressed against the inclined surface of the neck portion.

In order to achieve the above object, the cross section of the large-sized sealing container in the present invention is in the O-ring The shape is a circle.

To achieve the above object, the large-sized sealing container of the present invention further has a limiting protrusion on the cover, which is formed inside the annular wall of the open end of the skirt, the bottle further having a ratchet serration, which forms At a lower end portion of the neck, the cover is coupled to the neck of the bottle, and the limit projection is hooked to the ratchet serration, thereby suppressing rotation of the cover in a direction of uncoupling.

To achieve the above object, the large-sized sealing container of the present invention is formed in the neck portion between the two wires adjacent to each other in parallel with the outer side surface of the neck portion.

In order to achieve the above object, the large-sized sealing container of the present invention is produced by blow molding of the bottle from a high-density polyethylene (HDPE) material.

In order to achieve the above object, the large-sized sealing container of the present invention further has an outer protrusion on the outer side surface of the skirt portion, which is formed side by side with the extending direction of the skirt portion, and is insertable into a protrusion formed by the fixing seat of the torque wrench. Insert the groove.

Moreover, another embodiment of the present invention provides a medium and large sealed container including a cover and a bottle, wherein the cover includes: a skirt forming a first spiral on the inner side; and a cover closing the One end portion of the skirt portion; and the annular protrusion portion formed to protrude to an inner side surface of the cover portion, the bottle forming a second spiral on the outer side surface to make the skirt portion The first spiral is spirally coupled and has a neck capable of passing through the contents, wherein the annular protrusion is formed in the case where the cover is coupled to the neck of the bottle The inner side of the neck, at this time, is formed on the inner side of the neck facing the annular projection An inclined surface, and a groove is formed in the inclined surface, and the bottle further has an O-ring disposed in the groove.

10‧‧‧ cover

11‧‧‧ skirt

12‧‧‧ 盖部

13‧‧‧ annular protrusion

14‧‧‧ spiral

15‧‧‧Circular wall

16‧‧‧ Groove

17‧‧‧O-ring

18‧‧‧ Limit projections

181‧‧‧Limited surface

182‧‧‧ sloped surface

19‧‧‧shims

21‧‧‧External protrusion

30‧‧‧ Bottle (bottle)

31‧‧‧ neck

32‧‧‧ spiral

33‧‧‧ Ratchet serration

34‧‧‧ sloped surface

36‧‧‧ Path Department

50‧‧‧Seal container

60‧‧‧Torque Wrench

61‧‧‧handle

62‧‧‧ fixed seat

63‧‧‧Protrusion insertion groove

134‧‧‧Slanted surface

135‧‧‧limit surface

1 is a partially cutaway cross-sectional view of the lid of the container for sealing according to an embodiment of the present invention; FIG. 2 is a partially cutaway cross-sectional view of the lid of the container for sealing according to an embodiment of the present invention; 3 is a partially cutaway cross-sectional view showing the lid of the container for sealing according to an embodiment of the present invention, and FIG. 4 is a partial plan view of the bottle of the container for sealing according to an embodiment of the present invention; A cross-sectional view of an end portion of the neck portion in a state in which the lid of the sealing container of the embodiment is joined to the neck portion; and FIG. 6 is an O-ring and a gasket of the container for sealing according to an embodiment of the present invention. A partially cutaway cross-sectional view; Fig. 7 is a cross-sectional view of a torque wrench for locking or unlocking a lid of a sealing container in a neck portion according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. However, it is only for illustration, and the present invention is not limited thereto.

In describing the present invention, the specific description of the known art related to the present invention is not necessary and the details of the present invention are omitted, and the detailed description thereof will be omitted. Further, the terms described below are terms defined in consideration of the functions in the present invention, which differ depending on the intention of the user, the user, or the convention. Therefore, its definition must be defined based on the entire content of this specification.

The technical idea of the present invention is determined according to the claims, and the following embodiments are merely a method for explaining the technical idea of the present invention more effectively to those skilled in the art to which the present invention pertains.

Referring to Fig. 1, there is shown a partially cutaway cross-sectional view of the lid (10) of the container for sealing according to an embodiment of the present invention, and with reference to Fig. 2, a lid (10) for a container for sealing according to an embodiment of the present invention is shown. A partial cut sectional view and a partial enlarged view of the lower side view. Referring to Fig. 3, a partially cutaway cross-sectional view showing a state in which a lid (10) and a bottle (30; bottle) of a sealing container (50) according to an embodiment of the present invention are joined, showing only a neck portion (31) of a connecting bottle (30). Part of the body.

As shown in FIGS. 1 to 3, a medium and large-sized sealing container (50) according to an embodiment of the present invention includes: a cover (10); and a bottle (30) having a neck for screwing the cover (10) ( 31). The bottle (30) of the sealing container (50) is, for example, a medium-large capacity capable of containing a high-purity chemical such as a photosensitive material used in the manufacture of an LCD, such as a bottle or a barrel of 20 to 40 L, without leaking. Further, the sealing container (50) uses high-density polyethylene in order to prevent generation of particles and metal ion extraction in high-purity chemicals, and for chemical resistance, strength, and cost saving of the container. (HDPE: high-density polyethylene) materials are manufactured into various shapes by blow molding.

The lid (10) of the sealing container (50) according to an embodiment of the present invention is injection-molded by HDPE material, and has a skirt portion (11) having a spiral line (14) formed on the inner side surface and a lid portion (12). An end of the skirt portion (11) is closed; and an annular projection portion (13) is formed to protrude from an inner side surface of the cover portion (12). The annular projections (13) are arranged at a certain distance from the skirt portion (11).

The cover (10) is rotated by spirally coupling the spiral (14) of the skirt (11) with the spiral (32) formed on the outer side of the neck (31) of the bottle (30) described below, thereby It can be combined with the contents of the liquid or the like, that is, the contents are injected into the bottle (30), or the neck (31) for discharging the contents from the bottle (30).

Thereby, in a state where the cover (10) is combined with the neck portion (31), the annular projection portion (13) is formed to be inserted into the inner side of the neck portion (31), and, in the inner side surface facing the neck portion (31) The outer side surface of the annular projection (13) is formed with an annular groove (16), and the cover (10) further has an O-ring (17; O-ring) inserted into the annular groove (16). The O-ring (17) can be pressed against the inside of the neck (31) when the cover (10) is coupled to the neck (31), thereby suppressing the contents contained in the bottle (30) from passing through the cover The leakage of (10) is minimized. In particular, the diameter of the neck portion (31) is large, and even in the case of injection molding, the O-ring (17) can compensate for the tolerance even if it is manufactured in a shape that is not completely circular, whereby the effect of preventing leakage can be improved. Further, as shown in Fig. 6, the O-ring (17) has a circular cross section, whereby when the cover (10) is coupled to the neck portion (31), it is gently inserted to form a seal. Further, the O-ring (17) is made of an EPDM (ethylene propylene diene monomer) material for chemical resistance of chemicals to be placed in the sealing container (50).

In the above description, in the medium-large-sized sealing container (50) according to the embodiment of the present invention, one O-ring (17) is disposed in the annular projection (13) of the cover (10), but the invention is not limited thereto. Two or more O-rings can also be disposed in each of two or more grooves.

The cover (10) also has a spacer (19) disposed between the skirt (11) and the annular projection (13). As shown in Fig. 6, the gasket (19) has a square cross section, and can be made, for example, of LDPE foam (Low-density polyethylene foam). And, when the cover (10) is coupled to the neck (31) of the bottle (30), the gasket (19) is pressed against the neck (31). Ends. Therefore, even if there is a liquid sealed by the neck (31) and the O-ring (17), the liquid leakage is prevented by the seal between the ends of the gasket (19) and the neck (31).

Further, the cover (10) further has an outer protrusion (21) disposed on the outer side surface of the skirt portion (11). The outer protrusion (21) is inserted into the protrusion insertion groove (63) of the fixing seat (62) of the torque wrench (60; see Fig. 7) described below, whereby the torque wrench (60) can be rotated by the cover (10).

Also, the cover (10) has an annular wall (15) formed at the end of the skirt (11). A finite projection (18) is formed at a certain interval on the inner side of the annular wall (15). The limiting protrusion (18) can be hooked to the ratchet serration (33) of the neck (31) when the cover (10) is completely coupled to the neck (31), and the cover (10) is locked to the neck (31) In a state where a fixed effect can be obtained. Thereby, it is possible to prevent the phenomenon of loosening the coupling with the neck portion (31) of the lid (10) by an external force such as vibration, and the like, for example, it is possible to prevent the passage of the large-sized sealing container (50) during transportation. Leakage of the contents produced by the cover (10).

The limit projections (18), as shown in Fig. 2, are arranged at an angle (α), for example, an angle of about 10°. Further, the stopper projection (18) forms an inclined surface (182) inclined at a certain angle (β), for example, 30° in the front end of the lid (10) in the locking rotation direction (counterclockwise direction in Fig. 2), in the cover (10) The rear end of the locking rotation direction forms a finite plane (181). According to this configuration, in the case where the cover (10) is completely coupled to the neck portion (31), the stopper surface (181) is hooked on the stopper surface of the ratchet serration (33) described below (135; see Fig. 4) Still able to remain attached to the lid (10).

Referring to Fig. 4, there is shown a partial plan view of a neck portion (31) of a bottle (30) of a sealing container (50) according to an embodiment of the present invention.

As shown in FIGS. 3 and 4, a ratchet serration (33) is formed by directly or in the middle of the lower end portion of the neck portion (31) with an arc-shaped path portion (36). The ratchet serrations (33) are, for example, spaced apart by a predetermined angle (α), that is, a separation pitch of the limit projections (18) and are spaced apart from each other. Also, the formation range of the ratchet serration (33) can be formed in the neck portion (31) portion between the two parallel wires adjacent to the neck portion (31) so as to be in the bottle (30), for example, when injection molding Easy to discharge.

The ratchet serration (33) forms a finite plane (135) at the front end of the cover (10) in the locking rotational direction (clockwise direction in Fig. 4), and is formed, for example, at the rear end of the cover (10) in the locking rotational direction. A convex inclined surface (134). According to the configuration as described above, when the cover (10) is locked, the inclined surface (182) of the limiting protrusion (18) of the corresponding cover (10) slides out of the inclined curved surface (134) of the ratchet serration (33), or conversely When the rotation of the cover (10) is released, the limiting surface (181) of the limiting protrusion (18) of the cover (10) is hooked on the limiting surface (135) of the ratchet serration (33), thereby The cover (10) is restrained from rotating in the unlocking direction.

Referring to Fig. 5, there is shown a partially enlarged view of the end region of the neck portion (31) in a state in which the cover (10) and the neck portion (31) of the medium and large-sized sealing container (50) are combined in an embodiment of the present invention. .

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) has a certain angle (γ) to the outside with respect to the protruding direction of the neck portion (31), for example, an angle of 10° to 30°. And, the O-ring (17) of the groove (16) attached to the annular projection (13) of the cover (10) is exposed to the groove when the cover (10) is completely joined to the neck (31). The outer O-ring (17) portion of (16) protrudes outward from the inner side surface other than the inclined surface (34) of the neck portion (31), and is pressed against the inclined surface (34) to be compressed and adhered. According to the structure as described above, there is a tilt at the end of the neck (31) The bevel (34), when the cover (10) is coupled to the neck (31), reduces the pressure applied to the O-ring (17) through the neck (31) and is gently inserted into the inside of the neck (31). That is, when the cover (10) is coupled to the neck portion (31), the cover (10) is carried along the neck portion (31) toward the inside of the bottle (30) due to the diameter of the inclined surface (34) of the neck portion (31). The smaller the inner side of the bottle (30) is, the O-ring (17) is in line contact with the inclined surface (34) of the neck (31) at the initial stage of locking of the cover (10), and there is no large resistance. In the case, inserted into the neck (31) and moving, the more toward the inside of the bottle (30), the line contact with the inclined surface (34) is converted into surface contact, and the surface contact area is increased, and the contact pressure is also increased. , greatly increases the sealing of the inclined surface (34) of the O-ring (17). Moreover, for medium and large containers, the neck (31) has a large diameter and is molded, even if the neck (31) is not formed into a complete circle, since the end of the neck (31) tends to the bottle (30). The inner side, the smaller the diameter of the neck (31), whereby the size of the O-ring (17) can be determined to overcome the tolerance of the neck (31), thereby clearly ensuring the neck (31) and Seal between O-rings (17).

Further, in Fig. 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 projection (13), but is not limited thereto, and can be inclined to The extending direction of the annular projection (13) is formed, for example, perpendicular to the inclined surface (34).

Further, in the above description, the groove (16) is formed in an annular shape on the outer surface of the annular projection (13), but the invention is not limited thereto, and a plurality of grooves are formed at a constant pitch in the annular projection (13). (16), by inserting a projection (not shown) in the O-ring (17) and inserting it into the groove (16), the O-ring (17) can also be disposed in the groove (16).

Also, in Fig. 5, the O-ring (17) has a circular cross section, for example, a portion that protrudes to the outside of the groove (16) is the same as that of Fig. 5, and a portion that does not protrude to the outside of the groove (16) also has There is a cross-sectional shape corresponding to the cross-sectional shape of the groove (16). In this case, it is possible to improve the adhesion to the inclined surface (34) of the O-ring (17).

Further, a second inclined surface (36) can be formed on the outer surface of the end portion of the neck portion (31).

Referring to Fig. 7, there is shown a cross-sectional view of a cover (10) for locking a neck portion (31) coupled to a medium and large-sized sealing container (50), or a disengaged torque wrench (60), according to an embodiment of the present invention.

As shown in FIG. 7, the torque wrench (60) includes a fixing base (62) externally inserted into the cover (10), and a handle (lever, 61) connected to the fixing base (62). A protrusion insertion groove (63) for inserting an outer protrusion (21) of the cover (10) is formed on an inner side surface of the fixing seat (62), and the operator rotates when the holder (62) is rotated by rotating the handle (61) The force is transmitted to the cover (10). The length of the handle (61) is determined in consideration of the torque required to lock or unlock the cover (10).

When the cover (10) is in the locked state, the limiting surface (181) of the limiting element protrusion (18) is hooked on the limiting surface (135) of the ratchet serration (33), and the rotation of the cover (10) is suppressed. Therefore, at the time of releasing the locking of the cover (10), at least one of the limiting protrusion (18) of the cover (10) and the ratchet serration (33) may be damaged.

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

The medium and large-sized sealing container (50) according to an embodiment of the present invention configured as described above The inner side surface of the end portion of the neck portion (31) forms an inclined surface (34), and is supported by an O-ring (17) of a groove (16) attached to the outer side surface of the annular projection portion (13) of the cover (10). When the cover (10) is coupled to the neck (31), the O-ring (17) receives less pressure from the inner side of the neck (31) and gently along the inner side of the neck (31). Insertion, when the cover (10) is completely engaged with the neck (31), the portion of the O-ring (17) that protrudes to the outside of the groove (16) is in surface contact with the inclined surface (34) and is pressed, whereby It is possible to prevent leakage of contents through the space between the inner side surface of the neck portion (31) and the O-ring (17). In particular, in a medium-sized and large-sized container containing chemicals, it is difficult to form a completely circular shape due to the large diameter of the neck portion (31). In this case, on the inclined surface (34) on the inner side of the neck portion (31), The size can be determined so that the O-ring (17) can be gently inserted into the inside of the neck portion (31), and the O-ring (17) can be strongly pressed against the inclined surface (34), thereby reliably preventing the inside of the bottle (30). The contents of the leaked. Moreover, when the cover (10) is fully coupled to the neck (31), the cover (10) can be prevented by the limit protrusion (18) of the cover (10) interacting with the ratchet serration (33) of the neck (31). Loosing, whereby the seal between the O-ring (17) and the inner side of the neck (31) can be maintained until the lid (10) is opened. Therefore, even if the medium-sized large-sized sealing container (50) is stored for a long period of time, leakage due to vibration occurring during transportation can be prevented.

As described above, the present invention has been described with reference to the embodiments, but it is understood that those skilled in the art to which the present invention pertains can be variously modified without departing from the spirit and scope of the invention.

Further, those skilled in the art to which the present invention pertains will understand that the structural elements shown in the present invention are replaced or modified as technical elements for performing well-known similar functions, or are common technical knowledge.

Therefore, the technical scope of the present invention and the scope of the claims are not limited to the illustrated The embodiments, and the scope of the claims, and the equivalent scope thereof are

10‧‧‧ cover

11‧‧‧ skirt

12‧‧‧ 盖部

14‧‧‧ spiral

15‧‧‧Circular wall

17‧‧‧O-ring

19‧‧‧shims

21‧‧‧External protrusion

30‧‧‧ Bottle (bottle)

31‧‧‧ neck

32‧‧‧ spiral

33‧‧‧ Ratchet serration

50‧‧‧Seal container

Claims (4)

A medium and large-sized sealing container comprising: a cover having: a skirt having a first spiral formed on an inner side; a cover portion closing one end of the skirt; and an annular protrusion formed to protrude to the An inner side surface of the cover portion; and a bottle having a second spiral formed on the outer side surface to be spirally coupled to the first spiral of the skirt portion and having a neck portion for passing the contents; When the cover is combined with the neck of the bottle, the annular protrusion is located inside the neck, and at this time, on the outer side of the annular protrusion facing the inner side of the neck The groove is formed, and an end portion of the inner side surface of the neck forms an inclined surface having an angle of 10° to 30° to the outside, and the cover further has an O-ring disposed in the groove. The medium and large-sized sealing container according to Item 1, wherein the O-ring is pressed against the neck when the cover is coupled to the neck of the bottle. The inclined surface. The medium and large-sized sealing container according to the second aspect of the invention, wherein the O-ring has a circular cross-sectional shape, and the groove is formed in a ring shape at the annular projection. A medium and large-sized sealing container comprising: a cover having: a skirt having a first spiral formed on an inner side; a cover portion closing one end of the skirt; and an annular protrusion formed to protrude to the The inner side of the cover; and a bottle having a second spiral formed on the outer side surface for spirally engaging the first spiral of the skirt and having a neck for passing the contents; In the case where the neck of the bottle is coupled, the annular projection is located inside the neck, and at this time, an inclined surface is formed on the inner side of the neck facing the annular projection. The inclined surface forms a groove; the bottle further has an O-ring disposed in the groove.