CN110254942B - Leak-proof metal packaging container with material containing groove - Google Patents
Leak-proof metal packaging container with material containing groove Download PDFInfo
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- CN110254942B CN110254942B CN201810201059.5A CN201810201059A CN110254942B CN 110254942 B CN110254942 B CN 110254942B CN 201810201059 A CN201810201059 A CN 201810201059A CN 110254942 B CN110254942 B CN 110254942B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
- B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
Abstract
The invention discloses a leakage-proof metal packaging container with a containing groove, which comprises a container body and a twist cover, wherein an external thread is formed on the outer wall of a container opening, the twist cover comprises a cover top and a cylindrical cover wall formed by downward extension of the outer edge of the cover top, an internal thread matched with the external thread is arranged in the middle of the cover wall, an anti-theft ring is arranged at the lower part of the cover wall, a sealing gasket is arranged on the lower surface of the cover top, an inner sealing ring and an outer sealing ring are integrally extended downwards from the outer periphery of the sealing gasket and used for being abutted against the inner wall of the container opening, an outer sealing ring is abutted against the outer wall of the container opening, a sealing groove with a downward opening is formed between the inner sealing ring and the outer. The invention effectively solves the problems that the container is easy to collapse and the neck part of the anti-theft ring of the container is easy to deform due to overlarge capping pressure in the capping process of the metal packaging container in the prior art, and has high practical value.
Description
Technical Field
The invention relates to the technical field of packaging containers, in particular to a leakage-proof metal packaging container with a material containing groove.
Background
The twist cover mounted on the mouth of the container such as a can has the following structure: the anti-theft cover comprises a cover top, a cover top side edge and a synthetic resin sealing gasket adhered to the inner side of the cover top, wherein an anti-theft ring is arranged on the lower side of the side edge and connected with the side edge through a bridging. The sealing gasket is contacted with the container opening and has a certain compression amount by sleeving the sealing gasket into the container opening and applying certain pressure on the cover top, and threads are formed by copying the side edge of the cover and the threads on the opening part of the metal packaging container, the anti-theft ring and the curled edge of the opening part of the metal packaging container are sealed and pulled, so that the twisted cover can be well sealed on the container and the sealing property is ensured. The cover sealing process is that the cover is sleeved into the opening of the container, after a certain pressure is applied to the cover top, the thread forming cutter in the middle of the side edge of the cover and the sealing cutter at the position of the anti-theft ring at the lower part are rotated, the threads of the cover are formed according to the threads of the opening of the container, and the anti-theft ring of the cover is formed according to the neck structure of the anti-theft ring at the opening of the can. In order to ensure the sealing performance of the cover after the cover is closed, a certain pressure is often applied to the top of the cover during can sealing, so that the sealing gasket and the container opening have certain interference to ensure sealing, but the excessive pressure of the cover can cause the problems of container collapse, container anti-theft ring neck deformation and the like. The anti-theft cover has the advantages that the bridge is broken after the twist cover is opened, and the bridge cannot be restored to the original shape, so that the anti-theft function is achieved, however, in the practical process, the situation can occur, as the forming of the opening part of the container cannot be completely consistent, the anti-theft ring cannot be particularly attached to the convex ring of the container when being curled, the twist cover can firstly rotate for a certain angle when being opened, the anti-theft ring and the twist cover firstly move upwards for a small end distance, then the anti-theft ring can be clamped by the convex ring, and the bridge of the twist cover can be broken only by continuously rotating the; particularly, the cross section of a convex ring of a container opening neck part of the metal container, which is used for limiting the upward movement of the anti-theft ring, can only be formed into an arc-shaped structure, so that the anti-theft ring cannot be tightly attached to the anti-theft ring when being curled, and generally can rotate for a certain angle when the twist-off cover is opened, so that a potential safety hazard exists, namely, when the twist-off cover rotates under certain conditions, the compression amount of a sealing gasket is relieved before a bridge is broken, the sealing performance is damaged at the moment, but the appearance of the metal packaging container is intact, so that the metal packaging container can unconsciously deteriorate products under a slight leakage state, and serious reputation influence is caused to product production enterprises. The Chinese patent document with publication number CN107098056A, publication number of 2017, 8 and 29, discloses a leak-proof bottle cap, which comprises an outer side wall of the bottle cap and is further provided with: the bottle mouth joint groove is used for being jointed with the bottle mouth; the inner side flow stopping wall of the bottle cap is used for tightly pressing the bottle mouth from the inner pressure to prevent side leakage; the bottle cap extension surface is connected with the inner side flow stopping wall of the bottle cap and can pull the inner side flow stopping wall of the bottle cap to be separated from the bottle mouth; the toggle switch is connected with the bottle cap extension surface and can pull the bottle cap extension surface; the bottle cap compression surface is connected with the toggle switch and is used for providing restoring force for the toggle switch so that the bottle cap extension surface is restored to the original position; the liquid outflow opening is an opening on the outer side wall of the bottle cap and is positioned at the lower side of the extension surface of the bottle cap, and the liquid outflow opening is used for liquid outflow when the flow stopping wall on the inner side of the bottle cap is separated from the bottle opening. The bottle cap adopts a lever structure, realizes one-hand operation, is automatic in leakage prevention, is suitable for sealing frequently-used bottled liquid containers, and is not suitable for sealing containers with anti-theft and leakage-prevention functions.
Disclosure of Invention
The invention aims to solve the problems that the container is easy to collapse, the neck of a container anti-theft ring is easy to deform and the like due to overlarge capping pressure in the capping process of a metal packaging container in the prior art, and provides a leakage-proof metal packaging container with a material containing groove, which can greatly reduce the problems that the container is easy to collapse, the neck of the container anti-theft ring is easy to deform and the like in the capping process of the metal packaging container.
The invention also aims to solve the problems that the metal packaging container in the prior art is easy to lose the anti-theft and anti-leakage functions or causes the product to go bad unconsciously and causes serious credit and reputation influence on product manufacturing enterprises, and the anti-leakage metal packaging container with the material containing groove has the characteristics of simple structure, good anti-theft and sealing performance and convenience in opening.
The invention adopts a specific scheme for solving the technical problems that when the leakage-proof metal packaging container with the material containing groove is used for sealing the container opening by using the twist-off cover, the metal packaging container is provided with a cylindrical container opening, the outer wall of the container opening is provided with an external thread, the twist-off cover comprises a cover top and a cylindrical cover wall formed by downward extension of the outer edge of the cover top, the middle part of the cover wall is provided with an internal thread matched with the external thread, the lower part of the cover wall is provided with an anti-theft ring, the lower surface of the cover top is provided with a sealing gasket, the outer peripheral part of the sealing gasket is downwards provided with an internal sealing ring which is used for being abutted against the inner wall of the opening edge part of the container opening and an external sealing ring which is abutted against the outer wall of the opening edge part of the container opening in an integral extending manner, a sealing groove with a downward opening is formed between the internal sealing ring and the external sealing ring, the top surface, the inner side surface of the outer sealing ring is tightly attached to the outer wall of the opening edge of the container opening, the outer side surface of the inner sealing ring is tightly attached to the inner wall of the opening edge of the container opening, the groove bottom of the sealing groove is tightly attached to the upper edge of the opening edge of the container, the cross-sectional area of the material containing groove is reduced, and the groove bottom of the material containing groove is close to the lower surface of the cover.
The leak-proof metal packaging container comprises a container body and a twist cover, wherein a cylindrical container opening is formed in the container, external threads are formed on the outer wall of the container opening, internal threads matched with the external threads are formed in the middle of the upper cover wall of the twist cover, and the internal threads and the external threads are matched for sealing the container. The twist cover is provided with an inner sealing ring and an outer sealing ring at the container mouth matching part on the periphery of the sealing gasket, a sealing groove for sleeving the container mouth is formed between the two sealing rings, so that after the container mouth enters the sealing groove, the inner side surface (namely the outer side groove wall of the sealing groove) of the outer sealing ring clings to the outer wall of the mouth edge part of the container mouth to form outer sealing, the outer side surface (namely the inner side groove wall of the sealing groove) of the inner sealing ring clings to the inner wall of the mouth edge part of the container mouth to form inner sealing, the groove bottom of the sealing groove clings to the upper edge of the mouth edge part of the container to form upper sealing, and thus the twist cover can well seal the container; the top surface of the sealing gasket above the sealing groove is provided with a material containing groove which is arranged on the surface of the sealing gasket, which is contacted with the cover body, when the cover is turned on to cover the container, the cover has downward pressure when the cover is covered, the sealing gasket is interfered, and part of the reaction force can be absorbed by the deformation of the material containing groove, so that the reaction force can not be completely acted on the container, thereby greatly reducing the bearing pressure of the container, and greatly reducing the problems of the container collapse, the neck deformation of the anti-theft ring of the container and the like caused in the process of covering the metal packaging container.
Preferably, the mouth edge part of the container mouth is formed by folding four layers of metal materials, the top of the mouth edge part is arc-shaped, and the groove bottom of the sealing groove is matched with the shape of the top of the mouth edge part. The mouth edge part of the container mouth is formed by folding four layers of metal materials, the cross section of the mouth edge part is similar to an ellipse, the top of the mouth edge part is arc-shaped, the sealing groove of the twist-off cover is favorably arranged, the shape of the groove bottom of the sealing groove is matched with that of the top of the mouth edge part, namely, the cross section of the groove bottom of the sealing groove is arc-shaped, and the sealing performance of the container is favorably improved.
Preferably, the groove bottom surface of the material containing groove is arc-shaped, the center line of the cross section of the material containing groove is overlapped with the center line of the cross section of the sealing groove, the opening width of the material containing groove is 57-73% of the width of the sealing groove, and the depth of the material containing groove is 37-63% of the opening width.
Preferably, the height of the cross section of the inner sealing ring is greater than that of the cross section of the outer sealing ring (namely, the downward extension length of the inner sealing ring is greater than that of the outer sealing ring), an interference ring is convexly arranged at the lower part of the outer side surface of the inner sealing ring, and the distance between the interference ring and the groove bottom of the sealing groove is greater than the axial moving distance of the cap top when the twist-off cap opening anti-theft ring is broken. The invention is provided with the interference ring in a protruding way at the lower part of the outer side surface of the inner sealing ring, the interference ring is an annular belt structure protruding on the outer side surface of the inner sealing ring, the interference ring can play a role of strengthening sealing when the outer side surface of the inner sealing ring is tightly attached to the inner wall of the container opening, because the distance between the interference ring and the bottom of the sealing groove is larger than the axial moving distance of the cover top when the anti-theft ring is opened by twisting the cover and the cover is broken, namely, at the initial stage of the twist cover rotating opening, when the twist cover moves a certain distance in the axial direction but the anti-theft ring is not broken, the interference ring is always tightly attached to the inner wall of the container opening to ensure the sealing between the inner sealing ring and the inner wall of the container opening before the anti-theft ring is not broken, therefore, the problems that the sealing performance of the container is damaged, the appearance of the metal packaging container is intact, the anti-theft function of the container is lacked, or the product is unconsciously deteriorated, so that the product manufacturing enterprise is seriously influenced by reputation can be avoided.
The leakage angle of the twist cover is larger than the fracture angle of the anti-theft ring, the leakage angle refers to the rotation angle of the twist cover when the twist cover is rotated and opened until the substance in the container begins to leak out of the sealed position, and the fracture angle of the anti-theft ring refers to the rotation angle of the twist cover when the twist cover is rotated and opened until the anti-theft ring is fractured, namely the substance in the container cannot leak out of the sealed position before the anti-theft ring is fractured, so that the good sealing performance between the twist cover and the container is ensured in the complete state of the anti-theft ring.
Preferably, an annular tapered wall with a small upper part and a large lower part is formed on the cover wall close to the cover top, the upper section of the tapered wall is tightly attached to the outer sealing ring to form an outer sealing ring squeezing part, when the cover is unscrewed to seal the container opening, the pressure of the outer sealing ring on the outer wall of the container opening is greater than the pressure of the inner sealing ring on the inner wall of the container opening, and the vertex angle of the tapered wall is 26-46 degrees. The invention forms an annular tapered wall with a small upper part and a big lower part on the cover wall close to the cover top, namely the upper section of the twist cover is of a structure with a small upper part and a big lower part, the cross section of the cover wall of the section is inclined, the outer sealing ring is extruded by the tapered wall to form an extrusion part, the inner side surface of the outer sealing ring is tightly attached to the outer wall of the container opening after being extruded by the extrusion part, and the pressure of the outer sealing ring to the outer wall of the container opening is greater than that of the inner sealing ring to the inner wall of the container opening, thus ensuring the sealing of the outer sealing ring to the container opening, solving the problem of poor sealing performance of the traditional process in the form of pressing the container opening by the cover top and a single-side (inner side) sealing ring The difficult problem is that the opening of the metal packaging container is convenient under the premise of ensuring the sealing. The top angle is an included angle between conical walls on two sides of the cover top, the top angle is too small, the lateral extrusion force of the outer sealing ring to the container opening is too large, and the opening force of the twist cover is easily caused to be too large; if the vertex angle is too large, the pressure of the outer sealing ring on the container opening is too small, and although the opening is easy, the sealing performance is poor.
Preferably, the inner side surface of the inner sealing ring and the lower surface of the sealing gasket (i.e. the bottom surface of the sealing gasket which is close to the inner sealing ring and does not extend downwards) are in transition connection through a compression-resistant cambered surface, and the radius of the compression-resistant cambered surface is 0.7-1.3 times of the height of the cross section of the inner sealing ring. The compression-resistant cambered surface is arranged between the inner side surface of the inner sealing ring and the lower surface of the sealing gasket, so that the compression resistance of the inner sealing ring can be obviously improved, and the sealing effect of the interference ring on the inner wall of the container opening is strengthened.
Preferably, a decompression groove extending along the sealing groove is arranged on one side, close to the inner sealing ring, of the groove bottom of the sealing groove, the opening width of the decompression groove is 10% -25% of the width of the groove bottom of the sealing groove, and the depth of the decompression groove is 15% -30% of the width of the groove bottom of the sealing groove; the center line of the cross section of the pressure reducing groove is parallel to the center line of the cross section of the sealing groove, the inner side groove wall of the pressure reducing groove and the inner side groove wall at the groove bottom of the sealing groove are on the same cylindrical surface (namely the inner side groove wall of the pressure reducing groove is formed by extending the inner side groove wall of the sealing groove close to the groove bottom), and the groove bottom of the pressure reducing groove is arc-shaped. The function of the pressure reducing groove is to properly reduce the resistance of the inner sealing ring entering the container opening, and avoid the serious damage to the sealing performance of the container caused by the overlarge resistance when the container opening is covered by the leak-proof metal packaging container with the container groove due to the existence of the interference ring and the pressure-resistant cambered surface, and the crease caused at the interference ring by the excessive extrusion of the sealing gasket on the edge part of the opening of the container. Although the resistance when the container mouth is sealed and covered by the leakage-proof metal packaging container with the containing groove can be reduced by reducing the compression-resistant cambered surface, the influence on the sealing performance of the interference ring is large, the pressure reducing groove can reduce the influence to the minimum degree, and meanwhile, the interference ring is prevented from being wrinkled, so that the method is an ideal technical scheme; on the other hand, the size of the cross section of the pressure reducing groove has a great influence on the sealing performance, and the oversize pressure reducing groove not only influences the sealing of the top end of the container mouth, but also reduces the sealing performance of the interference ring, so that the pressure reducing groove needs to be controlled within a reasonable range.
Preferably, the lower end of the outer side surface of the inner sealing ring is provided with a guide arc-shaped edge, and the upper edge of the guide arc-shaped edge is connected with the lower edge of the interference ring. The guide arc-shaped edge plays a guide role when the twist cover is matched with the container opening.
Preferably, the antitheft ring is connected with the upper side of the cover wall through a bridging frame, two convex rings are arranged on the lower portion of the cover wall, an annular groove is formed between the two convex rings, a plurality of long-strip-shaped notches are arranged in the annular groove along the circumferential direction of the cover wall, the notches penetrate through the cover wall, the cover wall between every two adjacent notches forms the bridging frame, and the bridging frame between every two adjacent notches is arranged at the groove bottom of the annular groove. The cut and the bridge between the adjacent cuts are arranged at the groove bottom of the annular groove, so that the cut and the bridge are both positioned at the concave part and cannot be contacted with the palm when the cover is turned and twisted, and the palm is prevented from being injured by sharp pricks after the anti-theft ring is broken (bridge is broken).
Preferably, the bridge is provided with notches, the notches are arranged along the circumferential direction of the periphery of the cover wall, the width of each notch is smaller than that of each notch, one notch is arranged on the bridge, the cross section of each notch is a right-angled triangle, the right-angled edge of each notch is flush with the upper side of each notch, the depth of each notch is 40% -60% of the thickness of the cover wall, and the width of each notch is 0.8-1.5 times of the depth of each notch. The notch is formed by removing a part of cover wall materials in a cutting mode, and is different from a notch pressing structure formed by extrusion and the like, on one hand, the existence of the notch enables the wall thickness of the bridge to be locally thinned and the structural strength to be reduced, and on the other hand, the stress at the notch is concentrated when the twist cover is opened, so that the opening force of the twist cover can be greatly reduced, and the purpose of opening is facilitated. The right-angle side of the notch is parallel and level with the upper side of the notch, so that most of the broken sharp pricks of the rotary-twist cover bridge are concentrated on the anti-theft ring, and the palm can be prevented from being injured by the broken sharp pricks of the bridge to the maximum extent.
Preferably, the upper portion of the lid wall is provided with a plurality of internal pressure release ports punched inward along the lid wall circumferential direction. The internal pressure release port is used for releasing gas or liquid in the container in time when the pressure in the container is overlarge, so that the serious result caused by direct flying of a twist cover due to overlarge pressure in the container is avoided.
The invention has the advantages that the problems of container collapse and container anti-theft ring neck deformation easily caused by overlarge capping pressure in the capping process of the metal packaging container in the prior art are effectively solved, and the problems of container collapse, container anti-theft ring neck deformation and the like caused by the capping process of the metal packaging container are greatly reduced. The anti-leakage metal packaging container with the material containing groove has the characteristics of simple structure, good anti-theft sealing performance and convenience in opening, and has high practical value.
Drawings
FIG. 1 is a schematic view of one construction of the twist-off cap of the present invention;
FIG. 2 is a schematic view showing an overall structure of the leak-proof metal packing container with a receiving groove of the present invention;
FIG. 3 is a partial structural cross-sectional view of the twist-off cap of the present invention;
FIG. 4 is a cross-sectional view of another alternate construction of the twist-off cap of the present invention;
FIG. 5 is a partial sectional view of the twist-off cap of the present invention closing a container;
FIG. 6 is a cross-sectional view of another embodiment of the twist-off cap of the present invention for capping a container;
FIG. 7 is a partial cross-sectional view of the structure at the location of a twist-off lid bridge of the present invention;
fig. 8 is a schematic view of the force state of the twist-off cap of the present invention.
In the figure: 1. the anti-theft cap comprises a cap top, 2 parts of a cap wall, 3 parts of an anti-theft ring, 4 parts of a sealing gasket, 5 parts of a port edge part, 6 parts of an inner sealing ring, 7 parts of an outer sealing ring, 8 parts of a sealing groove, 9 parts of a material containing groove, 10 parts of an interference ring, 11 parts of a conical wall, 12 parts of an extrusion part, 13 parts of a compression-resistant arc surface, 14 parts of a pressure reducing groove, 15 parts of a guide arc edge, 16 parts of an inner pressure releasing port, 17 parts of a bridge, 18 parts of a convex ring, 19 parts of an annular groove, 20 parts of a notch, 21 parts of a notch groove, 22 parts.
Detailed Description
The following further describes embodiments of the present invention by way of examples, with reference to the accompanying drawings.
Example 1
3. In embodiment 1 shown in fig. 1 and fig. 2 and fig. 3, a leak-proof metal packaging container with a material containing groove comprises a container body 22 and a twist cover, wherein a cylindrical container opening 23 is formed on the metal packaging container, an external thread is formed on the outer wall of the container opening, the twist cover comprises a cover top 1 and a cylindrical cover wall 2 formed by extending the outer edge of the cover top downwards, an internal thread matched with the external thread is arranged in the middle of the cover wall, a plurality of internal pressure release openings 16 which are punched inwards are arranged on the upper part of the cover wall along the circumferential direction of the cover wall, an anti-theft ring 3 is arranged on the lower part of the cover wall, a sealing gasket 4 is arranged on the lower surface of the cover top, an internal sealing ring 6 which is used for being abutted against the inner wall of a port edge part 5 of the container opening and an external sealing ring 7 which is abutted against the outer wall of the port edge part of the container opening extend downwards integrally, and the height, an interference ring 10 (the left part of a dotted line in the figure) is convexly arranged at the lower part of the outer side surface of the inner sealing ring, and the distance between the interference ring and the bottom of the sealing groove is larger than the axial moving distance of the cover top when the twist cover opens the anti-theft ring and is broken (namely, the leakage angle of the twist cover is larger than the breakage angle of the anti-theft ring of the twist cover). The lower extreme of the lateral surface of interior sealing ring is equipped with direction arc limit 15, the last edge on direction arc limit is connected with the lower limb of interference ring. The mouth edge part of the container mouth of the embodiment is formed by folding four layers of metal materials, the top of the mouth edge part is arc-shaped, and the groove bottom of the sealing groove is matched with the shape of the top of the mouth edge part. A sealing groove 8 with a downward opening is formed between the inner sealing ring and the outer sealing ring, a material containing groove 9 with a circular arc-shaped groove bottom surface is arranged on the top surface of the sealing gasket corresponding to the upper part and the lower part of the sealing groove, the central line of the cross section of the material containing groove is superposed with the central line of the cross section of the sealing groove, the opening width of the material containing groove is 57% of the width of the sealing groove, and the depth of the material containing groove is 37% of. When the anti-leakage metal packaging container with the containing trough is used for covering the container opening by using the twist-off cover, the inner side surface of the outer sealing ring is tightly attached to the outer wall of the opening edge part of the container opening, the outer side surface of the inner sealing ring is tightly attached to the inner wall of the opening edge part of the container opening, the bottom of the sealing groove is tightly attached to the upper edge of the opening edge part of the container, the cross-sectional area of the containing trough is reduced, and the bottom of the containing trough.
Example 2
In embodiment 2 shown in fig. 4, an annular tapered wall 11 with a small top and a large bottom is formed on the cap wall close to the cap top, the apex angle of the tapered wall is 36 degrees, the upper section of the tapered wall is tightly attached to the outer sealing ring to form an outer sealing ring squeezing portion 12, and when the cap is unscrewed to seal the container opening, the outer sealing ring is squeezed by the tapered wall squeezing portion formed by deformation of the cap wall, so that the pressure of the outer sealing ring on the outer wall of the container opening is greater than the pressure of the inner sealing ring on the inner wall of the container opening. The medial surface of sealing ring and sealed inter surface through resistance to compression cambered surface 13 transitional coupling in this embodiment, the radius of resistance to compression cambered surface is 1 times of interior sealing ring cross section height. In this embodiment, the opening width of the material accommodating groove is 73% of the width of the sealing groove, and the depth of the material accommodating groove is 63% of the opening width.
In embodiment 2, a decompression groove 14 extending along the sealing groove is arranged on one side of the groove bottom of the sealing groove close to the inner sealing ring, the opening width of the decompression groove is 18% of the width of the groove bottom of the sealing groove, and the depth of the decompression groove is 23% of the width of the groove bottom of the sealing groove; the center line of the cross section of the pressure reducing groove is parallel to the center line of the cross section of the sealing groove, the inner side groove wall of the pressure reducing groove and the inner side groove wall at the groove bottom of the sealing groove are on the same cylindrical surface, the groove bottom of the pressure reducing groove is arc-shaped, and the rest is the same as that of the embodiment 1.
Example 3
In embodiment 3 shown in fig. 7, the anti-theft ring is connected with the upper side of the cover wall through a bridging 17, two convex rings 18 are arranged at the lower part of the cover wall, an annular groove 19 is formed between the two convex rings, a plurality of strip-shaped notches 20 are arranged in the annular groove along the circumferential direction of the cover wall, the notches penetrate through the cover wall, the cover wall between adjacent notches forms the bridging, and the notches and the bridging between the adjacent notches are arranged at the groove bottom of the annular groove; be equipped with the cutting 21 on the bridge, the cutting set up along the circumference of lid wall periphery, the notch width of cutting is less than notched width, the cutting on the bridge is one, the cross section of cutting is right triangle, the right-angle side of cutting and notched side parallel and level of going up, the degree of depth of cutting is 52% of lid wall thickness, and the notch width is 1.15 times of the degree of depth of cutting, and all the other is the same with embodiment 1 or embodiment 2.
According to the leak-proof metal packaging container with the material containing groove, the container mouth matching part on the periphery of the sealing gasket is provided with the inner sealing ring and the outer sealing ring, a sealing groove for being sleeved into the container mouth part is formed between the two sealing rings, so that after the mouth edge part of the container enters the sealing groove, the inner side surface of the outer sealing ring clings to the outer wall of the mouth edge part of the container mouth to form outer sealing, the outer side surface of the inner sealing ring clings to the inner wall of the mouth edge part of the container mouth to form inner sealing, and the groove bottom of the sealing groove clings to the upper edge of the mouth edge part of the container to form upper sealing (see figure 6, the overlapping part in the figure is the compression part of the; the top surface of the sealing gasket above the sealing groove is provided with a material containing groove which is arranged on the contact surface of the sealing gasket and the cover body, when the cover is turned over to cover the container, downward pressure F1 is generated when the cover is covered, and reaction force F2 (shown in figure 8) generated by interference of the sealing gasket is generated, and part of the reaction force can be absorbed by the material containing groove due to deformation, so that the reaction force can not be completely acted on the container, the pressure bearing of the container is greatly reduced, and the problems of container collapse, container anti-theft ring neck deformation and the like caused in the cover closing process of the cover turning over are greatly reduced. Meanwhile, the lower part of the outer side surface of the inner sealing ring is convexly provided with the interference ring, the interference ring is of an annular belt structure which is protruded on the outer side surface of the inner sealing ring, the interference ring can play a role of strengthening sealing when the outer side surface of the inner sealing ring is tightly attached to the inner wall of the container opening, because the distance between the interference ring and the bottom of the sealing groove is larger than the axial moving distance of the cover top when the anti-theft ring is opened by the twist cover, namely, in the initial stage of the rotation opening of the twist cover, when the twist cover moves a certain distance in the axial direction but the anti-theft ring is not broken, the interference ring is always tightly attached to the inner wall of the container opening (see fig. 5, the state shown in fig. 5 is the leakage critical state of the container), the sealing between the inner sealing ring and the inner wall of the container opening before the anti-theft ring is broken can be ensured, so that the sealing performance of the container is damaged, Thereby causing the problem of serious credit influence on product production enterprises.
In addition to the above embodiments, the technical features or technical data of the present invention may be reselected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and are within the protection scope of the present invention.
Claims (6)
1. The utility model provides a leak protection metal package container with hold silo, includes vessel (22) and twists the lid, the last shaping of metal package container has cylindric container mouth (23), is formed with the external screw thread on the outer wall of container mouth, its characterized in that, it includes caping (1) and cylindric lid wall (2) that constitutes by the outer fringe downwardly extending of this caping to twist the lid, lid wall middle part be equipped with the internal thread of external screw thread adaptation, the lower part of lid wall is equipped with anti-theft ring (3), the lower surface of caping is equipped with sealed pad (4), the outer peripheral part of sealed pad is the integrative extension downwards have be used for with the interior sealing ring (6) of the mouth edge portion (5) inner wall butt of container mouth and with the external seal ring (7) of the mouth edge portion outer wall butt of container mouth, constitute down seal groove (8) of opening between interior sealing ring and the external seal ring, be equipped with and hold silo (9) with the, when the container mouth of the leakage-proof metal packaging container with the material containing groove is sealed by using the twist-off cover, the inner side surface of the outer sealing ring is tightly attached to the outer wall of the mouth edge part of the container mouth, the outer side surface of the inner sealing ring is tightly attached to the inner wall of the mouth edge part of the container mouth, the groove bottom of the sealing groove is tightly attached to the upper edge of the mouth edge part of the container, the cross-sectional area of the material containing groove is reduced, and the groove bottom of; the bottom surface of the material containing groove is arc-shaped, the central line of the cross section of the material containing groove is superposed with the central line of the cross section of the sealing groove, the opening width of the material containing groove is 57-73% of the width of the sealing groove, and the depth of the material containing groove is 37-63% of the opening width; an annular tapered wall (11) with a small upper part and a large lower part is formed on the cover wall close to the cover top, the upper section of the tapered wall is tightly attached to the outer sealing ring to form an outer sealing ring extrusion part (12), when the cover is unscrewed to seal the container opening, the pressure of the outer sealing ring on the outer wall of the container opening is greater than the pressure of the inner sealing ring on the inner wall of the container opening, and the vertex angle of the tapered wall is 26-46 degrees; the inner side surface of the inner sealing ring is in transitional connection with the lower surface of the sealing gasket through a compression-resistant cambered surface (13), and the radius of the compression-resistant cambered surface is 0.7-1.3 times of the height of the cross section of the inner sealing ring; a decompression groove (14) extending along the sealing groove is arranged on one side, close to the inner sealing ring, of the groove bottom of the sealing groove, the opening width of the decompression groove is 10% -25% of the width of the groove bottom of the sealing groove, and the depth of the decompression groove is 15% -30% of the width of the groove bottom of the sealing groove; the center line of the cross section of the pressure reducing groove is parallel to the center line of the cross section of the sealing groove, the inner side groove wall of the pressure reducing groove and the inner side groove wall at the groove bottom of the sealing groove are on the same cylindrical surface, and the groove bottom of the pressure reducing groove is arc-shaped.
2. The leak-proof metal packaging container with the material containing groove as claimed in claim 1, wherein the mouth edge part of the container mouth is formed by folding four layers of metal materials, the top of the mouth edge part is in a circular arc shape, and the bottom of the sealing groove is matched with the top of the mouth edge part in shape.
3. The leak-proof metal packaging container with a containing trough of claim 1, characterized in that the height of the cross section of the inner sealing ring is larger than that of the cross section of the outer sealing ring, an interference ring (10) is convexly arranged at the lower part of the outer side surface of the inner sealing ring, and the distance between the interference ring and the bottom of the sealing groove is larger than the axial moving distance of the cover top when the twist-off cover opening anti-theft ring is broken.
4. The leak-proof metal packing container with a receiving groove as set forth in claim 1, wherein the lower end of the outer side surface of the inner seal ring is provided with a guide arc-shaped edge (15), and the upper edge of the guide arc-shaped edge is connected with the lower edge of the interference ring.
5. The leak-proof metal package container with a receiving slot as claimed in any one of claims 1-4, characterized in that the pilfer proof ring is connected to the upper side of the lid wall by a bridging (17), two collars (18) are provided on the lower part of the lid wall, an annular groove (19) is formed between the two collars, a plurality of elongated slits (20) are provided in the annular groove along the circumference of the lid wall, the slits penetrate through the lid wall, the lid wall between adjacent slits forms the bridging, and the bridging between the slits and the adjacent slits is provided at the bottom of the annular groove.
6. The leak-proof metal packaging container with a receiving groove according to claim 5, wherein the bridge is provided with a notch (21), the notch is arranged along the circumferential direction of the periphery of the cover wall, the width of the notch is smaller than the width of the notch, the notch on the bridge is a single notch, the cross section of the notch is a right triangle, the right angle side of the notch is flush with the upper side of the notch, the depth of the notch is 40 to 60 percent of the thickness of the cover wall, and the width of the notch is 0.8 to 1.5 times of the depth of the notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201059.5A CN110254942B (en) | 2018-03-12 | 2018-03-12 | Leak-proof metal packaging container with material containing groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201059.5A CN110254942B (en) | 2018-03-12 | 2018-03-12 | Leak-proof metal packaging container with material containing groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110254942A CN110254942A (en) | 2019-09-20 |
| CN110254942B true CN110254942B (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810201059.5A Active CN110254942B (en) | 2018-03-12 | 2018-03-12 | Leak-proof metal packaging container with material containing groove |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7461068B2 (en) * | 2022-05-20 | 2024-04-03 | 株式会社アトラス | Beverage containers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000272652A (en) * | 1999-03-19 | 2000-10-03 | Nihon Yamamura Glass Co Ltd | Packing for pilfer-proof cap |
| JP2006036255A (en) * | 2004-07-26 | 2006-02-09 | Alcoa Closure Systems Japan Ltd | Metal container, closure device and drink enclosed in container |
| CN101148208A (en) * | 2006-09-21 | 2008-03-26 | 日本皇冠塞株式会社 | Metallic package |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE523527A (en) * | 1952-10-15 | |||
| DE1145508B (en) * | 1957-11-18 | 1963-03-14 | Agglomeres Du Ct L A C | Sealing insert |
| JP4232374B2 (en) * | 2002-02-07 | 2009-03-04 | 三笠産業株式会社 | Snap-on cap |
| WO2006097151A2 (en) * | 2005-03-14 | 2006-09-21 | Creanova Universal Closures Ltd. | Closure |
| CN206939392U (en) * | 2017-06-26 | 2018-01-30 | 义乌市易开盖实业公司 | A kind of turn-break type with cutting outwards winding lid |
-
2018
- 2018-03-12 CN CN201810201059.5A patent/CN110254942B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000272652A (en) * | 1999-03-19 | 2000-10-03 | Nihon Yamamura Glass Co Ltd | Packing for pilfer-proof cap |
| JP2006036255A (en) * | 2004-07-26 | 2006-02-09 | Alcoa Closure Systems Japan Ltd | Metal container, closure device and drink enclosed in container |
| CN101148208A (en) * | 2006-09-21 | 2008-03-26 | 日本皇冠塞株式会社 | Metallic package |
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| CN110254942A (en) | 2019-09-20 |
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