WO2019237681A1 - 一种密封包装容器 - Google Patents

一种密封包装容器 Download PDF

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Publication number
WO2019237681A1
WO2019237681A1 PCT/CN2018/118968 CN2018118968W WO2019237681A1 WO 2019237681 A1 WO2019237681 A1 WO 2019237681A1 CN 2018118968 W CN2018118968 W CN 2018118968W WO 2019237681 A1 WO2019237681 A1 WO 2019237681A1
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WO
WIPO (PCT)
Prior art keywords
groove
mating
wall
groove wall
matching
Prior art date
Application number
PCT/CN2018/118968
Other languages
English (en)
French (fr)
Inventor
蔡啸杰
蔡沧洋
张冬阳
庄跃新
Original Assignee
泉州梅洋塑胶五金制品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 泉州梅洋塑胶五金制品有限公司 filed Critical 泉州梅洋塑胶五金制品有限公司
Publication of WO2019237681A1 publication Critical patent/WO2019237681A1/zh

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Classifications

    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/06—Removable lids or covers having a peripheral channel embracing the rim of the container
    • B65D43/065—Removable lids or covers having a peripheral channel embracing the rim of the container the peripheral channel having an inverted U-shape
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
    • A45C11/20—Lunch or picnic boxes or the like
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/08—Removable lids or covers having a peripheral flange fitting over the rim of the container
    • 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material

Definitions

  • the invention relates to a container, in particular to a sealed packaging container.
  • Patent No. 89218416 discloses a plastic blister snack box, which adopts two self-locking structures with concave and convex steps to replace the planar anastomosis of the original product. After the snack box is closed, it cannot be opened without relying on the outside, and the sealing performance is improved. . However, when such a fast-food box is squeezed and deformed, a gap is generated between the box cover and the box body, and the soup cannot effectively prevent the soup from overflowing.
  • Chinese invention patent 200510042475.8 discloses a fully sealed ultra-thin food container with excellent sealing performance and compressive strength, which can effectively prevent the leakage of food soup, and that the lid of the box is not easy to fall off when the flexible box is squeezed. It includes a box lid and an open box body. The edge of the box lid extends upward to form an inner groove wall. The upper end of the inner groove wall is horizontally bent to extend outward to form a groove top. The outer end of the groove top is bent downward to form an outer groove.
  • the wall is formed by an inner groove wall, a groove top, and an outer groove wall forming a downwardly-opening annular groove.
  • the box mouth of the box body extends upward to form an inner straight edge, and the upper end of the inner straight edge is horizontally bent outward to form a flat edge. The outer end of the flat edge is bent down to extend the outer straight edge.
  • the inner straight edge, flat edge and outer straight edge form the double edge of the box mouth.
  • the groove is buckled on the double edge of the box mouth.
  • the inner groove wall of the groove The inner side is attached to the outer side of the inner straight edge of the double edge of the box mouth, and a lock portion is provided at the joint.
  • the inner surface of the outer groove wall of the groove has a horizontally protruding projection, and the projection is locked.
  • the outer straight edge of the rim of the box mouth is extended downward and outward, and the lower straight end of the rim of the box mouth is abutted on the inner side of the outer groove wall of the groove.
  • the inner side of the inner wall of the groove is attached to the outer side of the inner straight edge of the box mouth compound edge, and a lock portion is provided at the joint to form an inner seal structure;
  • the outer straight edge of the box mouth compound edge It extends obliquely downward and outward, and its lower end part is supported on the inner side surface of the outer groove wall of the groove to form an external sealing structure;
  • the inner surface of the outer groove wall of the groove has a horizontally protruding protrusion, and the protrusion
  • the lower end of the outer straight edge of the double edge of the lock box mouth forms a trip prevention structure. Therefore, excellent sealing performance and compressive strength can be achieved, and the food soup can be effectively prevented from leaking, and the cover is not easy to fall off when the flexible box body is squeezed.
  • the outer straight edge of the double edge of the box mouth of the box body extends obliquely downward and outward, and its lower end part is supported on the inner side surface of the outer groove wall of the annular groove of the box cover.
  • the object of the present invention is to provide a sealed packaging container with stable anti-trip structure and good sealing performance.
  • a sealed packaging container includes a container lid and an open container body. An edge of the container lid is extended with a first annular inner matching groove with a notch downward. The lower end of the groove wall is bent outwards and upwards in order to form a first annular outer matching groove with the upward opening of the groove; and a second annular annular downward groove is provided along the mouth of the container body.
  • An inner mating groove, and the lower end of the outer groove wall of the second inner mating groove is bent outwards and upwards in order to form a ring-shaped second outer mating groove with the slot opening upward;
  • the first outer mating groove, the second inner mating groove, and the second outer mating groove are all elastic mating grooves; the second inner mating groove is nested in the first inner mating groove, and the first An outer mating groove is nested in the second outer mating groove;
  • the inner side surface of the outer groove wall of the second outer matching groove is provided with a limiting protrusion, and the limiting protrusion locks an upper end portion of the outer groove wall of the first outer matching groove; or / and, the first
  • the outer groove walls of the two outer mating grooves have a reverse tapered surface structure.
  • the outer groove walls of the first outer mating groove and the outer groove walls of the second outer mating groove are in surface contact with each other or are elastically supported.
  • the inner groove wall of the first inner mating groove and the inner groove wall of the second inner mating groove are in line contact with each other in an elastic jacking manner; and / or the outer groove wall of the first inner mating groove and The outer groove walls of the second inner matching groove are in line contact with each other in an elastic supporting manner.
  • the edge of the container lid is bent upwards to form an inner groove wall of the first inner mating groove, and an upper end portion of the inner groove wall of the first inner mating groove is bent outward to extend to form the first inner mating groove.
  • the outer end of the groove top of the first inner mating groove is bent downward to extend to form the outer groove wall of the first inner mating groove or the inner groove wall of the first outer mating groove,
  • the lower end portion of the outer groove wall of the first inner matching groove is bent outward to form a groove bottom of the first outer fitting groove, and the outer end portion of the groove bottom of the first outer fitting groove is bent upward to form the
  • the mouth of the container body is bent upward to extend to form the inner groove wall of the second inner fitting groove, and the upper end portion of the inner groove wall of the second inner fitting groove is outward Bend and extend to form the groove top of the second inner matching groove, and the outer end portion of the groove top of the second inner fitting groove is bent downward to form the outer groove wall
  • the first outer mating groove is nested in the second outer mating groove in an interference fit manner and / or the second inner mating groove is nested in the first inner mating groove in an interference fit manner.
  • a first inner pressing member is provided on the outer side of the inner groove wall of the first inner matching groove, or a second inner pressing member is provided on the inner side of the inner groove wall of the second inner matching groove, or A first outer pressing member is provided on the inner side of the outer groove wall of the first inner matching groove, or a second outer pressing member is provided on the outer side of the outer groove wall of the second inner matching groove.
  • the inner groove wall of the first inner mating groove is tangent to the inner groove wall of the second inner mating groove; and / or the outer groove wall of the first inner mating groove is tangent to the outer groove wall of the second inner mating groove.
  • the second inner mating groove is nested in the first inner mating groove
  • the first outer mating groove is nested in the second outer mating groove
  • the edge of the container lid and the mouth of the container body Interlocking rotating mating structures are formed between the edges, and the strength of the joint between the container lid and the container body is relatively high.
  • the anti-trip structure adopts five forms.
  • the first type is realized by the limit bumps. All three are realized by the reverse tapered surface structure of the outer groove wall of the outer matching groove, and the fourth and fifth are realized by the pressing member.
  • the limiting protrusion When it is realized by the limiting protrusion, the limiting protrusion is above, the upper end portion of the outer groove wall of the first outer mating groove is below, and the upper end portion of the outer groove wall of the first outer mating groove is performed by the limiting protrusion.
  • the lock forms a first anti-trip structure.
  • the outer groove wall of the first outer mating groove and the outer groove wall of the second outer mating groove are in surface contact with each other or are elastically supported.
  • the methods are in line contact with each other, and the outer groove wall of the first outer matching groove is locked by the reverse tapered surface structure of the outer groove wall of the second outer matching groove to form second and third anti-trip structures, respectively.
  • the outer side surface of the inner groove wall of the first inner matching groove and the inner side surface of the inner groove wall of the second inner matching groove are respectively provided with a first inner pressing member and a second inner engaging with each other.
  • a pressing member; or / and, an inner side surface of the outer groove wall of the first inner matching groove and an outer side surface of the outer groove wall of the second inner matching groove are respectively provided with a first outer pressing member and a second outer pushing Pressing parts, respectively forming a fourth and a fifth anti-trip structure.
  • the second inner mating groove and the second outer mating groove both receive an inward and downward pulling force.
  • the second outer mating groove are interleaved with the first inner mating groove and the first outer mating groove, and the second outer mating groove is outside, the first outer mating groove is inside, and when the second inner mating groove and the second outer mating are fitted
  • the second outer mating groove is pressed tighter outside the first outer mating groove, ensuring the stability of each anti-trip structure.
  • the buckle structure locks tighter.
  • the sealed packaging container of the present invention can effectively overcome squeezing or twisting by external force, has a stable anti-trip structure, and has high strength.
  • the inner groove wall of the first inner fitting groove and the inner groove wall of the second inner fitting groove are in line contact with each other in an elastic jacking manner; and / or the first inner fitting
  • the outer groove wall of the groove and the outer groove wall of the second inner matching groove are in line contact with each other in an elastic manner.
  • a first inner pressing member is provided on the outer side of the inner groove wall of the first inner matching groove, or a second inner pressing member is provided on the inner side of the inner groove wall of the second inner matching groove, Or the inner side surface of the outer groove wall of the first inner matching groove is provided with a first outer pressing member, or the outer side surface of the outer groove wall of the second inner matching groove is provided with a second outer pressing member.
  • a line sealing structure is formed between the pressing member and the corresponding groove wall; on the other hand, the sealing performance of the line sealing structure between the corresponding groove walls can be enhanced by the pressing of the pressing member.
  • the inner groove wall of the first inner fitting groove is tangent to the inner groove wall of the second inner fitting groove, and / or the outer groove wall of the first inner fitting groove and the outer groove of the second inner fitting groove
  • the walls are tangent to form a line-sealed structure by means of tangency.
  • FIG. 1 to FIG. 16 are schematic diagrams of cooperation between a box cover and a box body in Embodiments 1 to 16 of the present invention, respectively.
  • the present invention provides a sealed packaging container.
  • a packaging box is taken as an example for description.
  • the direction facing the central axis of the packaging box is inward and the direction facing away from the central axis of the packaging box is outward.
  • the box cover and the box body of the packaging box are all made of elastic material, or the matching parts of the box cover and the box body are made of elastic material.
  • Elastic materials can be ultra-thin injection materials with better elasticity and plasticity, or other elastic materials, such as thicker plastics or elastic metals.
  • the first embodiment includes a box cover 1 and an open box body 2.
  • An edge of the box cover 1 is provided with a ring-shaped first ring groove extending downward.
  • An inner matching groove 11 the lower end of the outer groove wall 113 of the first inner matching groove is bent outward and upward in order to form a ring-shaped first outer matching groove 12 with an upward opening;
  • the box body 2 A second annular inner matching groove 21 with a notch downward is provided extending outward from the mouth edge, and the lower end portion of the outer groove wall 213 of the second inner matching groove is bent outwards and upwards in order to form a notch.
  • the edge of the box cover 1 is bent upward to form an inner groove wall 111 of the first inner mating groove 11, and an upper end portion of the inner groove wall 111 of the first inner mating groove is bent outward to extend to form the first A groove top 112 of an inner fitting groove, and an outer end portion of the groove top 112 of the first inner fitting groove is bent downward to extend to form an outer groove wall 113 of the first inner fitting groove or the first outer fitting groove.
  • Inner groove wall 121 (the outer groove wall 113 of the first inner mating groove is shared with the inner groove wall 121 of the first outer mating groove), and the lower end portion of the outer groove wall 113 of the first inner mating groove is bent to extend outward
  • a groove bottom 122 of the first outer fitting groove is formed, and an outer end portion of the groove bottom 122 of the first outer fitting groove is bent upward to extend to form an outer groove wall 123 of the first outer fitting groove.
  • the mouth of the box body 2 is bent upwardly to form an inner groove wall 211 of the second inner mating groove 21, and an upper end portion of the inner groove wall 211 of the second inner mating groove is bent outward to form the inner groove.
  • the groove top 212 of the second inner fitting groove, and the outer end portion of the groove top 212 of the second inner fitting groove is bent downward to extend to form the outer groove wall 213 of the second inner fitting groove or the second outer fitting.
  • the inner groove wall 221 of the groove (the outer groove wall 213 of the second inner fitting groove is shared with the inner groove wall 221 of the second outer fitting groove), and the lower end portion of the outer groove wall 213 of the second inner fitting groove is bent outward
  • the groove bottom 222 of the second outer matching groove is extended to form, and the outer end portion of the groove bottom 222 of the second outer matching groove is bent upward to extend to form the outer groove wall 223 of the second outer matching groove.
  • the second inner mating groove 21 is nested in the first inner mating groove 11
  • the first outer mating groove 12 is nested in the second outer mating groove 22
  • the edge of the box cover 1 and the box body 2 Rotary mating structures are formed between the rims of each other.
  • the strength of the joint between the lid 1 and the box body 2 is higher; and the limiting protrusion 23 is on the upper end of the outer groove wall 123 of the first outer matching groove.
  • the upper end of the outer groove wall 123 of the first outer matching groove is locked by the limiting protrusion 23 to form an anti-trip structure.
  • the second inner mating groove 21 and the second outer mating groove 22 both receive an inward and downward pulling force.
  • the two inner mating grooves 21 and the second outer mating grooves 22 are interleaved with the first inner mating groove 11 and the first outer mating groove 12 and the second outer mating groove 22 is outside and the first outer mating groove 12 is inside.
  • the second inner mating groove 21 and the second outer mating groove 22 are pulled inwardly and downwardly by an external force
  • the second outer mating groove 22 is more tightly pressed outside the first outer mating groove 12 and the limit projection 23 is more tightly pressed at the first
  • An upper end portion of the outer groove wall 123 of the outer matching groove 12 locks it, and the more it is squeezed or twisted by force, the anti-trip structure is locked tighter. Therefore, the sealed packaging container of the present invention can effectively overcome squeezing or twisting by external force, has a stable anti-trip structure, and has high strength.
  • the limiting protrusions 23 are distributed along the circumferential direction on the inner side surface of the outer groove wall 223 of the second outer matching groove, and the limiting protrusions 23 have a dot-like structure or a pointed structure; or The position-limiting bumps 23 are formed in a closed loop shape on the inner side surface of the outer groove wall 223 of the second outer matching groove in the circumferential direction.
  • the outer groove wall 113 of the first inner matching groove 11 has a straight edge structure
  • the inner groove wall 111 has a tapered surface structure
  • each corner is a circular arc transition structure.
  • the inner and outer groove walls of the second inner matching groove 21 are both Conical structure. Both the first inner mating groove 11 and the second inner mating groove 21 and the first outer mating groove 12 and the second outer mating groove 22 are in interference fit.
  • a first inner pressing member 1111 is provided on an outer side surface of the inner groove wall 111 of the first inner matching groove 11.
  • the upper end portion of the outer groove wall 123 of the first outer mating groove is inclined upwardly and outwardly to be supported by the inner side surface of the outer groove wall 223 of the second outer mating groove. There is a gap between the groove bottom 122 of the first outer mating groove and the groove bottom 222 of the second outer mating groove.
  • the phase pressing between the first inner pressing member 1111 and the inner side surface of the inner groove wall 211 of the second inner matching groove 21 forms an inner-line sealing structure;
  • the bottom end of the outer groove wall 113 of the first inner mating groove 11 of the box cover 1 The turning transition arc is tangent to the outer groove wall 213 of the second inner matching groove 21 to form a middle-line seal structure.
  • the upper end portion of the outer groove wall 123 of the first outer matching groove is inclined upward and outward to support the second groove.
  • the inner side surface of the outer groove wall 223 of the outer matching groove forms an outer-line sealing structure.
  • the first inner pressing member 1111 may adopt a closed-loop structure or a discontinuous structure, and the discontinuous structure may adopt a dot shape or a zigzag shape. Regardless of whether the first inner pressing member 1111 adopts a closed-loop structure or a discontinuous structure, the first inner pressing member 1111 produces a holding effect, which can strengthen the middle and outer sealing structure and improve the sealing performance.
  • this embodiment is different from the first embodiment only in that the inner groove wall of the first inner matching groove 11 adopts a straight edge structure, and the outer groove wall adopts a tapered surface structure.
  • the first inner pressing member 1111 on the outer surface of the groove wall 111 is replaced with the first outer pressing member 1131 on the inner surface of the outer groove wall 113 of the first inner matching groove 11, and the groove bottom of the first outer matching groove 122 and the groove bottom 222 of the second outer matching groove are in surface contact with each other and adhere together.
  • the first outer pressing member 1131 may adopt a closed-loop structure or a discontinuous structure, and the discontinuous structure may adopt a dot shape or a zigzag shape.
  • the phase pressing between the first outer pressing member 1131 and the inner side surface of the outer groove wall 213 of the second inner matching groove 21 forms a mid-line seal structure; due to the first inner fitting
  • the interference fit between the groove 11 and the second inner mating groove 21 and between the first outer mating groove 12 and the second outer mating groove 22 makes the corner transition of the lower end of the inner groove wall of the first inner mating groove 11
  • the arc is tangent to the inner side surface of the inner groove wall of the second inner matching groove 21 to form an inner-line sealing structure; the upper end portion of the outer groove wall 123 of the first outer matching groove is tilted upward and outward to support the second outer groove.
  • the inner side surface of the outer groove wall 223 of the matching groove forms an outer-line sealing structure.
  • the first outer pressing member 1131 Regardless of whether the first outer pressing member 1131 adopts a closed-loop structure or a discontinuous structure, the first outer pressing member 1131 produces a holding effect, which can strengthen the inner and outer sealing structure and improve the sealing performance.
  • the difference between this embodiment and the first embodiment is only that the inner groove wall of the first inner matching groove 11 adopts a straight edge structure, and the first inner pressing member 1111 is omitted.
  • the inner and outer groove walls of the first inner mating groove 11 of the straight edge structure are respectively tangent to the inner and outer groove walls of the second inner mating groove 21 to form the inner and outer seal structures respectively. structure.
  • the fourth to seventh, the tenth, and the eleventh embodiments are similar to the structure of the first embodiment, and they are all formed by using a pressing member to form an inner line seal.
  • the structure or middle-line seal structure uses the interference fit of each corresponding groove wall to generate a tangent to form a middle-line seal structure or an inner-line seal structure.
  • the upper end portion of the outer groove wall 123 of the first outer mating groove is tilted upwards and outwards to support the inner side surface of the outer groove wall 223 of the second outer mating groove to form an outer-line sealing structure. It also uses the pressing parts to strengthen the outer seal structure, as well as the middle seal structure or the inner seal structure.
  • the difference between the eighth embodiment and the first embodiment is only that: the first inner pressing member 1111 is omitted, and the inner and outer groove walls of the first inner matching groove 11 adopt an inverted cone structure, and the second inner Both the inner and outer groove walls of the matching groove 21 adopt a straight edge structure.
  • the turning arcs of the inner and outer groove walls of the first inner mating groove 11 are respectively tangent to the inner and outer groove walls of the second inner mating groove 21 to form the inner and middle seal structures respectively.
  • the upper end portion of the outer groove wall 123 of the first outer mating groove is tilted upwards and outwards to support the inner side surface of the outer groove wall 223 of the second outer mating groove to form an outer-line sealing structure.
  • the difference between the ninth embodiment and the first embodiment is only that: the first inner pressing member 1111 is omitted, the inner groove walls of the first inner matching groove 11 adopt a straight edge structure, and the second inner matching groove 21 Both the inner and outer groove walls adopt reverse tapered surface structure.
  • the inverse conical surface structure is used to form a mid-line seal structure and an inner-line seal structure by tangent to the straight edge.
  • the upper end portion of the outer groove wall 123 of the first outer mating groove is tilted upwards and outwards to support the inner side surface of the outer groove wall 223 of the second outer mating groove to form an outer-line sealing structure.
  • the difference between the twelfth embodiment and the first embodiment is only that a second inner pressing member 2111 is added to the inner side surface of the inner groove wall of the second inner matching groove 21, and the second inner pressing member 2111 Cooperate with the first inner pressing member 1111 and snap together.
  • the mating stability of the box cover 1 and the box body 2 is further enhanced, and the sealing performance of the sealing structure along the middle line is further enhanced.
  • Embodiment 13 is a diagrammatic representation of Embodiment 13:
  • the difference between the thirteenth embodiment and the first embodiment is only that: the limiting protrusion 23 is omitted, and the outer groove wall of the second outer matching groove 22 and the outer groove wall of the first outer matching groove 12 are in phase with each other.
  • the outer groove wall of the first outer mating groove 12 and the outer groove wall 223 of the second outer mating groove are adapted to fit together to form an outer edge sealing structure.
  • the outer groove wall 123 of the first outer fitting groove is locked by the outer groove wall of the second outer fitting groove 22 of the reverse tapered surface structure to form a second trip prevention structure.
  • Embodiment 14 is a diagrammatic representation of Embodiment 14:
  • the difference between the fourteenth embodiment and the first embodiment is only that: the limiting protrusion 23 is omitted, and the outer groove wall of the second outer matching groove 22 has a reverse tapered surface structure.
  • the upper end portion of the outer groove wall 123 of the first outer fitting groove is locked by the outer groove wall of the second outer fitting groove 22 of the reverse tapered surface structure to form a third trip prevention structure.
  • the difference between the fifteenth embodiment and the first embodiment is only that: the limiting protrusion 23 is omitted, and an inner side of the inner groove wall 211 of the second inner matching groove 21 is additionally provided with a first inner top.
  • the second inner pressing member 2111 that the pressing members 1111 engage with each other.
  • the first inner pressing member 1111 and the second inner pressing member 2111 are engaged with each other to form a fourth trip prevention structure.
  • the difference between the sixteenth embodiment and the first embodiment is only that: the limiting bump 23 and the first inner pressing member 1111 are omitted, and the inner groove wall 111 of the first inner matching groove 11 adopts a straight edge structure.
  • the outer groove wall 113 adopts a tapered surface structure.
  • the inner surface of the outer groove wall 113 of the first inner mating groove 11 and the outer surface of the outer groove wall 213 of the second inner mating groove 21 are respectively provided with a first outer pressing member 1131 and a second outer engaging with each other. ⁇ ⁇ ⁇ 2131 ⁇ Top pressure member 2131.
  • the first outer pressing member 1131 and the second outer pressing member 2131 are engaged with each other to form a fifth trip prevention structure.
  • the core invention of the present invention lies in that: inner and outer mating grooves are respectively provided on the edge of the container cover and the mouth of the container body, so that the edge of the container cover and the mouth of the container body form a mutually staggered rotary matching structure.
  • the strength of the joint between the lid and the container body is relatively high; of which, the anti-trip structure adopts five forms.
  • the first is achieved by a limiting projection, and the second and third are both through the reaction of the outer groove wall of the outer matching groove.
  • the tapered surface structure is used to realize the fourth and fifth types by the pressing member.
  • the limiting protrusion When it is realized by the limiting protrusion, the limiting protrusion is above, the upper end portion of the outer groove wall of the first outer mating groove is below, and the upper end portion of the outer groove wall of the first outer mating groove is performed by the limiting protrusion.
  • the lock forms a first anti-trip structure.
  • the outer groove wall of the first outer mating groove and the outer groove wall of the second outer mating groove are in surface contact with each other or are elastically supported.
  • the methods are in line contact with each other, and the outer groove wall of the first outer matching groove is locked by the reverse tapered surface structure of the outer groove wall of the second outer matching groove to form second and third anti-trip structures, respectively.
  • the outer side surface of the inner groove wall of the first inner matching groove and the inner side surface of the inner groove wall of the second inner matching groove are respectively provided with a first inner pressing member and a second inner engaging with each other.
  • a pressing member; or / and, an inner side surface of the outer groove wall of the first inner matching groove and an outer side surface of the outer groove wall of the second inner matching groove are respectively provided with a first outer pressing member and a second outer pushing Pressing parts, respectively forming a fourth and a fifth anti-trip structure.
  • the second inner mating groove and the second outer mating groove both receive an inward and downward pulling force.
  • the second outer mating groove are interleaved with the first inner mating groove and the first outer mating groove, and the second outer mating groove is outside, the first outer mating groove is inside, and when the second inner mating groove and the second outer mating are fitted
  • the second outer mating groove is pressed tighter outside the first outer mating groove, ensuring the stability of each anti-trip structure.
  • the buckle structure locks tighter.
  • the sealed packaging container of the present invention can effectively overcome squeezing or twisting by external force, has a stable anti-trip structure, and has high strength.
  • the inner groove wall of the first inner fitting groove and the inner groove wall of the second inner fitting groove are in line contact with each other in an elastic jacking manner; and / or the first inner fitting
  • the outer groove wall of the groove and the outer groove wall of the second inner matching groove are in line contact with each other in an elastic manner.
  • the upper end of the outer groove wall 123 of the first outer matching groove is locked below the limiting protrusion 23.
  • each of the pressing members may adopt a closed-loop structure or a discontinuous structure, and the discontinuous structure may adopt a dot shape or a zigzag shape.
  • each groove wall of each matching groove adopts a tapered surface structure
  • the taper of the tapered surface is selected to be 2-12 °.
  • the outer groove wall of the second outer matching groove may be respectively provided with a pull ring and a handle. Through the handle or the pull ring, the outer groove wall of the second outer matching groove can be easily pulled outward to deform it, and the outer groove wall of the first outer matching groove is exposed, which is convenient for opening the container lid.
  • the outer groove wall of the second outer matching groove may be provided with a first cutout and a second cutout distributed in a vertical direction, and the depths of the first cutout and the second cutout are slightly
  • the wall thickness of the outer groove wall of the second outer matching groove is smaller.
  • the part of the outer groove wall of the second outer mating groove located between the two notches can be partially or completely opened vertically through two cutouts, exposing the outer groove wall of the first outer mating groove, which is convenient for opening the lid of the container.
  • the upper edge of the outer groove wall of the second outer matching groove may be provided with a notch, and the outer groove wall of the second outer matching groove is provided with a thin corresponding to this notch in the vertical direction. Wall area. The thin-walled area is partially or completely ripped through this gap in the vertical direction to expose the outer groove wall of the first outer matching groove, which is convenient for opening the container lid.
  • a gap may be left between the groove bottom 122 of the first outer mating groove and the groove bottom 222 of the second outer mating groove. If the gap exists, if a packing box is used The material with a small amount of deformation can be used to pry in the gap when opening the packaging box, which is convenient for opening the packaging box.
  • the five types of anti-trip structures can be separately provided, or two or three or four or five types can be used in combination.

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  • Closures For Containers (AREA)

Abstract

一种密封包装容器，其包括容器盖（1）和敞口的容器体（2），容器盖（1）的边沿设有回转结构的第一内配合槽（11）和第一外配合槽（12），容器体（2）的口沿对应设有回转结构的第二内配合槽（21）和第二外配合槽（22）；还设置有防脱扣结构。包装容器具有较强的抗变形能力，防脱扣结构较为稳定，而且密封性能较好。

Description

一种密封包装容器 技术领域
本发明涉及容器，具体是一种密封包装容器。
 背景技术
传统的食品容器或包装容器，如专利号86210848、87216769、89200752、94222756等专利公开的密封餐盒，其密封装置由卡扣、压扣、螺旋等锁紧机构和密封元件构成，这些设计均不但存在结构复杂，成本高等缺点，而且不适用于塑料、纸质的快餐盒。专利号89218416公开了一种塑料吸塑快餐盒，采用二个凹凸台阶的自锁结构代替了原产品的平面吻合，使得快餐盒合起来后，不靠外边自行不可能打开，并改善了密封性能。但这种快餐盒在受挤压变形时，盒盖和盒体扣合部分会产生缝隙，仍不能有效地防止汤汁外溢。
中国发明专利200510042475.8公开了一种具有优良的密封性能和抗压强度,能有效防止食物汤汁的溢漏,而且当挠性盒体受挤压时盒盖不易脱落的全密封超薄食品容器。其包括盒盖和敞口盒体,盒盖边沿向上延伸形成内槽壁、内槽壁的上端部水平向外弯折延伸形成槽顶、槽顶的外端部向下弯折延伸形成外槽壁,由内槽壁、槽顶、外槽壁构成向下开口的环状沟槽,盒体的盒口向上延伸形成内直沿,内直沿的上端部水平向外弯折延伸形成平沿,平沿的外端部向下弯折延伸形成外直沿,由内直沿、平沿、外直沿构成盒口复沿,沟槽套扣在盒口复沿,沟槽的内槽壁内侧面与盒口复沿的内直沿外侧面贴合、且在贴合处设置锁扣部,沟槽的外槽壁内侧面上具有水平向内突起的凸块、且该凸块锁扣盒口复沿的外直沿下端部,盒口复沿的外直沿向下向外倾斜延伸、且其下端部顶持于沟槽的外槽壁内侧面。
此发明专利中，沟槽的内槽壁内侧面与盒口复沿的内直沿外侧面贴合、且在贴合处设置锁扣部，形成内密封结构；盒口复沿的外直沿向下向外倾斜延伸、且其下端部顶持于沟槽的外槽壁内侧面，形成外密封结构；沟槽的外槽壁内侧面上具有水平向内突起的凸块、且该凸块锁扣盒口复沿的外直沿下端部，形成防脱扣结构。从而实现优良的密封性能和抗压强度,能有效防止食物汤汁的溢漏,而且当挠性盒体受挤压时盒盖不易脱落。
 技术问题
但此发明专利，还是存在如下不足之处：
盒体的盒口复沿的外直沿向下向外倾斜延伸、且其下端部顶持于盒盖的环状沟槽的外槽壁内侧面。由于盒盖与敞口盒体对应盖合后，盒盖的环状沟槽的外槽壁在外，盒体的盒口复沿的外直沿在内，当盒体上盒口复沿下方的位置受到外力挤压时，会向内凹陷变形，此盒口复沿受到一个向内向下的拉扯力，防脱扣结构会被破坏，盒口复沿的外直沿的下端部无法锁扣在盒盖的环状沟槽的外槽壁内侧面的凸块上。因此，这种包装容器，在外力作用下，其防脱扣结构的稳定性有待加强。进一步地，这种包装容器，当防脱扣结构不稳定性时，其密封性能当然也随之下降。
 技术解决方案
本发明的目的是提供防脱扣结构稳定、密封性能好的一种密封包装容器。
为了实现上述目的，本发明采用如下技术方案：
一种密封包装容器，包括容器盖和敞口的容器体，所述容器盖的边沿向外延伸设置有槽口向下的环状的第一内配合槽，所述第一内配合槽的外槽壁的下端部依次向外、向上弯折延伸，形成槽口向上的环状的第一外配合槽；所述容器体的口沿向外延伸设置有槽口向下的环状的第二内配合槽，所述第二内配合槽的外槽壁的下端部依次向外、向上弯折延伸，形成槽口向上的环状的第二外配合槽；所述第一内配合槽、所述第一外配合槽、所述第二内配合槽和所述第二外配合槽均为弹性配合槽；所述第二内配合槽嵌套于所述第一内配合槽内，所述第一外配合槽嵌套于所述第二外配合槽内；
所述第二外配合槽的外槽壁的内侧面设置有限位凸块，所述限位凸块锁扣所述第一外配合槽的外槽壁的上端部；或/和，所述第二外配合槽的外槽壁呈反锥面结构，所述第一外配合槽的外槽壁与所述第二外配合槽的外槽壁之间相互面接触或以弹性顶持的方式相互线接触；或/和，所述第一内配合槽的内槽壁的外侧面和所述第二内配合槽的内槽壁的内侧面分别设置有相互咬合的第一内顶压部件和第二内顶压部件；或/和，所述第一内配合槽的外槽壁的内侧面和所述第二内配合槽的外槽壁的外侧面分别设置有相互咬合的第一外顶压部件和第二外顶压部件；
所述第一内配合槽的内槽壁与所述第二内配合槽的内槽壁之间以弹性顶持的方式相互线接触；和/或所述第一内配合槽的外槽壁与所述第二内配合槽的外槽壁之间以弹性顶持的方式相互线接触。
所述容器盖的边沿向上弯折延伸形成所述第一内配合槽的内槽壁，所述第一内配合槽的内槽壁的上端部向外弯折延伸形成所述第一内配合槽的槽顶，所述第一内配合槽的槽顶的外端部向下弯折延伸形成所述第一内配合槽的外槽壁或所述第一外配合槽的内槽壁，所述第一内配合槽的外槽壁的下端部向外弯折延伸形成所述第一外配合槽的槽底，所述第一外配合槽的槽底的外端部向上弯折延伸形成所述第一外配合槽的外槽壁；所述容器体的口沿向上弯折延伸形成所述第二内配合槽的内槽壁，所述第二内配合槽的内槽壁的上端部向外弯折延伸形成所述第二内配合槽的槽顶，所述第二内配合槽的槽顶的外端部向下弯折延伸形成所述第二内配合槽的外槽壁或所述第二外配合槽的内槽壁，所述第二内配合槽的外槽壁的下端部向外弯折延伸形成所述第二外配合槽的槽底，所述第二外配合槽的槽底的外端部向上弯折延伸形成所述第二外配合槽的外槽壁。
所述第一外配合槽以过盈配合的方式嵌套于所述第二外配合槽内或/和所述第二内配合槽以过盈配合的方式嵌套于所述第一内配合槽内。
所述第一内配合槽的内槽壁的外侧面设置有第一内顶压部件，或所述第二内配合槽的内槽壁的内侧面设置有第二内顶压部件，或所述第一内配合槽的外槽壁的内侧面设置有第一外顶压部件，或所述第二内配合槽的外槽壁的外侧面设置有第二外顶压部件。
所述第一内配合槽的内槽壁与第二内配合槽的内槽壁相切；和/或所述第一内配合槽的外槽壁与第二内配合槽的外槽壁相切。
 有益效果
采用上述方案后，本发明密封包装容器，第二内配合槽嵌套于第一内配合槽内，第一外配合槽嵌套于第二外配合槽内，容器盖的边沿与容器体的口沿之间形成相互交错的回转式配合结构，容器盖与容器体的配合处强度较高；其中防脱扣结构采用五种形式，第一种通过限位凸块来实现，第二种和第三种均通过外配合槽的外槽壁的反锥面结构来实现，第四种和第五种均通过顶压部件来实现。当通过限位凸块来实现时，限位凸块在上，第一外配合槽的外槽壁的上端部在下，通过限位凸块对第一外配合槽的外槽壁的上端部进行锁扣，形成第一防脱扣结构。当通过第二外配合槽的外槽壁的反锥面结构来实现时，第一外配合槽的外槽壁与第二外配合槽的外槽壁之间相互面接触或以弹性顶持的方式相互线接触，通过第二外配合槽的外槽壁的反锥面结构对第一外配合槽的外槽壁进行锁扣，分别形成第二、第三防脱扣结构。当通过顶压部件来实现时，第一内配合槽的内槽壁的外侧面和第二内配合槽的内槽壁的内侧面分别设置有相互咬合的第一内顶压部件和第二内顶压部件；或/和，第一内配合槽的外槽壁的内侧面和第二内配合槽的外槽壁的外侧面分别设置有相互咬合的第一外顶压部件和第二外顶压部件，分别形成第四和第五防脱扣结构。
当容器体上口沿下方的位置受到外力挤压或扭转时，会向内凹陷变形，第二内配合槽和第二外配合槽均受到一个向内向下的拉扯力，由于第二内配合槽和第二外配合槽与第一内配合槽和第一外配合槽交错嵌合设置，且第二外配合槽在外，第一外配合槽在内，当第二内配合槽和第二外配合槽受到外力向内向下扯动时，第二外配合槽更加紧压在第一外配合槽外，保证了各防脱扣结构的稳定性，越是受力外挤压或扭转时，防脱扣结构就锁扣得更紧。因此，本发明密封包装容器，可有效克服外力挤压或扭转，防脱扣结构较为稳定，且强度较高。而且，本发明中，所述第一内配合槽的内槽壁与所述第二内配合槽的内槽壁之间以弹性顶持的方式相互线接触；和/或所述第一内配合槽的外槽壁与所述第二内配合槽的外槽壁之间以弹性顶持的方式相互线接触。通过第一内配合槽的内槽壁与第二内配合槽的内槽壁之间的线接触，和/或第一内配合槽的外槽壁与第二内配合槽的外槽壁之间的线接触，形成容器盖的边沿与容器体的口沿之间的内沿线密封结构和/或中沿线密封结构，提高容器盖的边沿与容器体的口沿之间的密封性能。
进一步地，所述第一内配合槽的内槽壁的外侧面设置有第一内顶压部件，或所述第二内配合槽的内槽壁的内侧面设置有第二内顶压部件，或所述第一内配合槽的外槽壁的内侧面设置有第一外顶压部件，或所述第二内配合槽的外槽壁的外侧面设置有第二外顶压部件。一方面，顶压部件与相应的槽壁之间形成一道线密封结构；另一方面，通过顶压部件的顶压，可加强了相应槽壁之间的线密封结构的密封性能。
进一步地，所述第一内配合槽的内槽壁与第二内配合槽的内槽壁相切，和/或所述第一内配合槽的外槽壁与第二内配合槽的外槽壁相切，通过相切的方式形成线密封结构。
 附图说明
图1－图16分别为本发明实施例一－十六中盒盖与盒体的配合示意图。
 本发明的最佳实施方式
下面结合附图对本发明进行进一步的描述。
本发明提供一种密封包装容器，为了方便描述，以包装盒为例进行说明。
本发明中，以面向包装盒的中轴线的方向为内，背向包装盒的中轴线的方向为外。
本发明中，包装盒的盒盖和盒体整体均采用弹性材料制成，或盒盖和盒体相配合的部分均采用弹性材料制成。弹性材料可采用弹塑性较好的超薄注塑材料，也可采用其他的弹性材料，如较厚的塑料，或弹性金属等。
实施例一：
本发明一种密封包装容器，实施例一如图1所示，包括盒盖1和敞口的盒体2，所述盒盖1的边沿向外延伸设置有槽口向下的环状的第一内配合槽11，所述第一内配合槽的外槽壁113的下端部依次向外、向上弯折延伸，形成槽口向上的环状的第一外配合槽12；所述盒体2的口沿向外延伸设置有槽口向下的环状的第二内配合槽21，所述第二内配合槽的外槽壁213的下端部依次向外、向上弯折延伸，形成槽口向上的环状的第二外配合槽22；所述第一内配合槽11、所述第一外配合槽12、所述第二内配合槽21和所述第二外配合槽22均为弹性配合槽；所述第二外配合槽的外槽壁223的内侧面设置有限位凸块23；所述第二内配合槽21嵌套于所述第一内配合槽11内，所述第一外配合槽12嵌套于所述第二外配合槽22内，所述限位凸块23锁扣所述第一外配合槽的外槽壁123的上端部。
所述盒盖1的边沿向上弯折延伸形成所述第一内配合槽11的内槽壁111，所述第一内配合槽的内槽壁111的上端部向外弯折延伸形成所述第一内配合槽的槽顶112，所述第一内配合槽的槽顶112的外端部向下弯折延伸形成所述第一内配合槽的外槽壁113或所述第一外配合槽的内槽壁121（第一内配合槽的外槽壁113和第一外配合槽的内槽壁121共用），所述第一内配合槽的外槽壁113的下端部向外弯折延伸形成所述第一外配合槽的槽底122，所述第一外配合槽的槽底122的外端部向上弯折延伸形成所述第一外配合槽的外槽壁123。
所述盒体2的口沿向上弯折延伸形成所述第二内配合槽21的内槽壁211，所述第二内配合槽的内槽壁211的上端部向外弯折延伸形成所述第二内配合槽的槽顶212，所述第二内配合槽的槽顶212的外端部向下弯折延伸形成所述第二内配合槽的外槽壁213或所述第二外配合槽的内槽壁221（第二内配合槽的外槽壁213和第二外配合槽的内槽壁221共用），所述第二内配合槽的外槽壁213的下端部向外弯折延伸形成所述第二外配合槽的槽底222，所述第二外配合槽的槽底222的外端部向上弯折延伸形成所述第二外配合槽的外槽壁223。
本实施例密封包装容器，第二内配合槽21嵌套于第一内配合槽11内，第一外配合槽12嵌套于第二外配合槽22内，盒盖1的边沿与盒体2的口沿之间形成相互交错的回转式配合结构，盒盖1与盒体2的配合处强度较高；而且限位凸块23在上，第一外配合槽的外槽壁123的上端部在下，通过限位凸块23对第一外配合槽的外槽壁123的上端部进行锁扣，形成防脱扣结构。当盒体2上其口沿下方的位置受到外力挤压或扭转时，会向内凹陷变形，第二内配合槽21和第二外配合槽22均受到一个向内向下的拉扯力，由于第二内配合槽21和第二外配合槽22与第一内配合槽11和第一外配合槽12交错嵌合设置，且第二外配合槽22在外，第一外配合槽12在内，当第二内配合槽21和第二外配合槽22受到外力向内向下扯动时，第二外配合槽22更加紧压在第一外配合槽12外，限位凸块23更加紧压在第一外配合槽12的外槽壁123的上端部对其进行锁扣，越是受力外挤压或扭转时，防脱扣结构就锁扣得更紧。因此，本发明密封包装容器，可有效克服外力挤压或扭转，防脱扣结构较为稳定，且强度较高。
所述限位凸块23沿周向间隔分布于所述第二外配合槽的外槽壁223的内侧面，所述限位凸块23呈圆点状结构或尖角状结构；或所述限位凸块23呈闭环状沿周向设置于所述第二外配合槽的外槽壁223的内侧面。
第一内配合槽11的外槽壁113采用直沿结构、内槽壁111采用锥面结构，且各拐弯处均为圆弧过渡结构，第二内配合槽21的内、外槽壁均采用锥面结构。第一内配合槽11与第二内配合槽21之间，以及第一外配合槽12与第二外配合槽22之间均过盈配合。第一内配合槽11的内槽壁111的外侧面设置有第一内顶压部件1111。第一外配合槽的外槽壁123的上端部向上向外倾斜张紧顶持于第二外配合槽的外槽壁223的内侧面。所述第一外配合槽的槽底122与所述第二外配合槽的槽底222之间具有间隙。
当第一内顶压部件1111采用闭环结构时，第一内顶压部件1111与第二内配合槽21的内槽壁211的内侧面的相顶压形成内沿线密封结构；由于第一内配合槽11与第二内配合槽21之间，以及第一外配合槽12与第二外配合槽22之间均过盈配合，盒盖1第一内配合槽11的外槽壁113下端部的拐弯过渡圆弧处与第二内配合槽21的外槽壁213相切，形成中沿线密封结构；第一外配合槽的外槽壁123的上端部向上向外倾斜张紧顶持于第二外配合槽的外槽壁223的内侧面，形成外沿线密封结构。
第一内顶压部件1111可采用闭环结构或间断结构，间断结构可采用点状或锯齿状。不管第一内顶压部件1111采用闭环结构或间断结构，第一内顶压部件1111产生顶持的效果，均可加强中沿线密封结构和外沿线密封结构，提高密封性能。
实施例二：
如图2所示，本实施例与实施例一的区别仅在于：第一内配合槽11的内槽壁采用直沿结构，外槽壁采用锥面结构，将第一内配合槽11的内槽壁111的外侧面上的第一内顶压部件1111换成第一内配合槽11的外槽壁113的内侧面上的第一外顶压部件1131，且第一外配合槽的槽底122与所述第二外配合槽的槽底222相互面接触贴合在一起。
第一外顶压部件1131可采用闭环结构或间断结构，间断结构可采用点状或锯齿状。
当第一外顶压部件1131采用闭环结构时，第一外顶压部件1131与第二内配合槽21的外槽壁213的内侧面的相顶压形成中沿线密封结构；由于第一内配合槽11与第二内配合槽21之间，以及第一外配合槽12与第二外配合槽22之间均过盈配合，使得第一内配合槽11的内槽壁的下端部的拐弯过渡圆弧处与第二内配合槽21的内槽壁的内侧面相切，形成内沿线密封结构；第一外配合槽的外槽壁123的上端部向上向外倾斜张紧顶持于第二外配合槽的外槽壁223的内侧面，形成外沿线密封结构。
不管第一外顶压部件1131采用闭环结构或间断结构，第一外顶压部件1131产生顶持的效果，均可加强内沿线密封结构和外沿线密封结构，提高密封性能。
实施例三：
如图3所示，本实施例与实施例一的区别仅在于：第一内配合槽11的内槽壁采用直沿结构，且省去第一内顶压部件1111。利用直沿结构的第一内配合槽11的内、外槽壁的拐弯圆弧过渡处分别与第二内配合槽21的内、外槽壁相切，分别形成内沿线密封结构和外沿线密封结构。
实施例四－十二：
如图4、5、6、7、10、11所示，实施例四－七、实施例十和实施例十一均与实施例一结构相近似，都是利用顶压部件进行形成内沿线密封结构或中沿线密封结构，利用各相应槽壁过盈配合产生相切形成中沿线密封结构或内沿线密封结构。利用第一外配合槽的外槽壁123的上端部向上向外倾斜张紧顶持于第二外配合槽的外槽壁223的内侧面，形成外沿线密封结构。并利用顶压部件加强外沿线密封结构，以及中沿线密封结构或内沿线密封结构。
如图8所示，实施例八与实施例一的区别仅在于：省去第一内顶压部件1111，第一内配合槽11的内、外槽壁均采用反锥面结构，第二内配合槽21的内、外槽壁均采用直沿结构。
利用第一内配合槽11的内、外槽壁的拐弯圆弧过渡处分别与第二内配合槽21的内、外槽壁相切，分别形成内沿线密封结构和中沿线密封结构。利用第一外配合槽的外槽壁123的上端部向上向外倾斜张紧顶持于第二外配合槽的外槽壁223的内侧面，形成外沿线密封结构。
如图9所示，实施例九与实施例一的区别仅在于：省去第一内顶压部件1111，第一内配合槽11的内槽壁均采用直沿结构，第二内配合槽21的内、外槽壁均采用反锥面结构。
利用反锥面结构的拐弯圆弧过渡处与直沿相切形成中沿线密封结构和内沿线密封结构。利用第一外配合槽的外槽壁123的上端部向上向外倾斜张紧顶持于第二外配合槽的外槽壁223的内侧面，形成外沿线密封结构。
如图12所示，实施例十二与实施例一的区别仅在于：在第二内配合槽21的内槽壁的内侧面增设第二内顶压部件2111，此第二内顶压部件2111与第一内顶压部件1111相互配合卡扣在一起。进一步加强了盒盖1与盒体2的配合稳定性，并加强了中沿线密封结构的密封性。
实施例十三：
如图13所示，实施例十三与实施例一的区别仅在于：省去限位凸块23，第二外配合槽22的外槽壁和第一外配合槽12的外槽壁呈相适配的反锥面结构，第一外配合槽12的外槽壁与第二外配合槽的外槽壁223相适配贴合在一起形成外沿面密封结构。通过反锥面结构的第二外配合槽22的外槽壁对第一外配合槽的外槽壁123进行锁扣，形成第二防脱扣结构。
实施例十四：
如图14所示，实施例十四与实施例一的区别仅在于：省去限位凸块23，第二外配合槽22的外槽壁呈反锥面结构。通过反锥面结构的第二外配合槽22的外槽壁对第一外配合槽的外槽壁123的上端部进行锁扣，形成第三防脱扣结构。
实施例十五：
如图15所示，实施例十五与实施例一的区别仅在于：省去限位凸块23，在所述第二内配合槽21的内槽壁211的内侧面增设与第一内顶压部件1111相互咬合的第二内顶压部件2111。通过第一内顶压部件1111和第二内顶压部件2111相互咬合，形成第四防脱扣结构。
实施例十六：
如图16所示，实施例十六与实施例一的区别仅在于：省去限位凸块23和第一内顶压部件1111，第一内配合槽11的内槽壁111采用直沿结构、外槽壁113采用锥面结构。所述第一内配合槽11的外槽壁113的内侧面和所述第二内配合槽21的外槽壁213的外侧面分别设置有相互咬合的第一外顶压部件1131和第二外顶压部件2131。通过第一外顶压部件1131和第二外顶压部件2131相互咬合，形成第五防脱扣结构。
本发明的核心发明点在于：分别在容器盖的边沿和容器体的口沿设置内、外配合槽，使容器盖的边沿与容器体的口沿之间形成相互交错的回转式配合结构，容器盖与容器体的配合处强度较高；其中防脱扣结构采用五种形式，第一种通过限位凸块来实现，第二种和第三种均通过外配合槽的外槽壁的反锥面结构来实现，第四种和第五种均通过顶压部件来实现。当通过限位凸块来实现时，限位凸块在上，第一外配合槽的外槽壁的上端部在下，通过限位凸块对第一外配合槽的外槽壁的上端部进行锁扣，形成第一防脱扣结构。当通过第二外配合槽的外槽壁的反锥面结构来实现时，第一外配合槽的外槽壁与第二外配合槽的外槽壁之间相互面接触或以弹性顶持的方式相互线接触，通过第二外配合槽的外槽壁的反锥面结构对第一外配合槽的外槽壁进行锁扣，分别形成第二、第三防脱扣结构。当通过顶压部件来实现时，第一内配合槽的内槽壁的外侧面和第二内配合槽的内槽壁的内侧面分别设置有相互咬合的第一内顶压部件和第二内顶压部件；或/和，第一内配合槽的外槽壁的内侧面和第二内配合槽的外槽壁的外侧面分别设置有相互咬合的第一外顶压部件和第二外顶压部件，分别形成第四和第五防脱扣结构。
当容器体上口沿下方的位置受到外力挤压或扭转时，会向内凹陷变形，第二内配合槽和第二外配合槽均受到一个向内向下的拉扯力，由于第二内配合槽和第二外配合槽与第一内配合槽和第一外配合槽交错嵌合设置，且第二外配合槽在外，第一外配合槽在内，当第二内配合槽和第二外配合槽受到外力向内向下扯动时，第二外配合槽更加紧压在第一外配合槽外，保证了各防脱扣结构的稳定性，越是受力外挤压或扭转时，防脱扣结构就锁扣得更紧。因此，本发明的密封包装容器，可有效克服外力挤压或扭转，防脱扣结构较为稳定，且强度较高。而且，本发明中，所述第一内配合槽的内槽壁与所述第二内配合槽的内槽壁之间以弹性顶持的方式相互线接触；和/或所述第一内配合槽的外槽壁与所述第二内配合槽的外槽壁之间以弹性顶持的方式相互线接触。通过第一内配合槽的内槽壁与第二内配合槽的内槽壁之间的线接触，和/或第一内配合槽的外槽壁与第二内配合槽的外槽壁之间的线接触，形成容器盖的边沿与容器体的口沿之间的内沿线密封结构和/或中沿线密封结构，提高容器盖的边沿与容器体的口沿之间的密封性能。
本发明中设置有限位凸块23的各实施例中，第一外配合槽的外槽壁123的上端部均锁扣于限位凸块23的下方。
本发明的各实施例中，各顶压部件均可采用闭环结构或间断结构，间断结构可采用点状或锯齿状。
本发明的各实施例中，各配合槽的各槽壁若采用锥面结构，则锥面的锥度选择2－12°。
进一步地，本发明中，所述第二外配合槽的外槽壁可分别设有拉环和把手。通过把手或拉环，可方便地将第二外配合槽的外槽壁向外拉扯使其变形，露出第一外配合槽的外槽壁，方便开启容器盖。
进一步地，本发明中，所述第二外配合槽的外槽壁可开设有沿竖向分布的第一切口和第二切口，所述第一切口和所述第二切口的深度略小于所述第二外配合槽的外槽壁的壁厚。通过两个切口可将第二外配合槽的外槽壁位于两个切口之间的那一部分沿竖向部分或全部扯开，露出第一外配合槽的外槽壁，方便开启容器盖。
进一步地，本发明中，所述第二外配合槽的外槽壁的上边沿可设有缺口，所述第二外配合槽的外槽壁沿竖向方向与此缺口相对应地设有薄壁区域。通过此缺口沿竖向将薄壁区域部分或全部扯开，露出第一外配合槽的外槽壁，方便开启容器盖。
本发明的各实施例中，均可在所述第一外配合槽的槽底122与所述第二外配合槽的槽底222之间留有间隙，所述间隙的存在，若包装盒采用变形量较小的材质，在开启包装盒时此间隙可供工具撬入，方便开启包装盒。
本发明的各实施例中，五种防脱扣结构可分别单独设置，也可两种或三种或四种或五种进行组合使用。
本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定，对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同结构形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而这些属于本发明的精神所引伸出的显而易见的变化或变动仍处于本发明的保护范围之中。

Claims (5)

  1. 一种密封包装容器，包括容器盖和敞口的容器体，其特征在于：所述容器盖的边沿向外延伸设置有槽口向下的环状的第一内配合槽，所述第一内配合槽的外槽壁的下端部依次向外、向上弯折延伸，形成槽口向上的环状的第一外配合槽；所述容器体的口沿向外延伸设置有槽口向下的环状的第二内配合槽，所述第二内配合槽的外槽壁的下端部依次向外、向上弯折延伸，形成槽口向上的环状的第二外配合槽；所述第一内配合槽、所述第一外配合槽、所述第二内配合槽和所述第二外配合槽均为弹性配合槽；所述第二内配合槽嵌套于所述第一内配合槽内，所述第一外配合槽嵌套于所述第二外配合槽内；
    所述第二外配合槽的外槽壁的内侧面设置有限位凸块，所述限位凸块锁扣所述第一外配合槽的外槽壁的上端部；或/和，所述第二外配合槽的外槽壁呈反锥面结构，所述第一外配合槽的外槽壁与所述第二外配合槽的外槽壁之间相互面接触或以弹性顶持的方式相互线接触；或/和，所述第一内配合槽的内槽壁的外侧面和所述第二内配合槽的内槽壁的内侧面分别设置有相互咬合的第一内顶压部件和第二内顶压部件；或/和，所述第一内配合槽的外槽壁的内侧面和所述第二内配合槽的外槽壁的外侧面分别设置有相互咬合的第一外顶压部件和第二外顶压部件；
    所述第一内配合槽的内槽壁与所述第二内配合槽的内槽壁之间以弹性顶持的方式相互线接触；和/或所述第一内配合槽的外槽壁与所述第二内配合槽的外槽壁之间以弹性顶持的方式相互线接触。
  2. 根据权利要求1所述的一种密封包装容器，其特征在于：所述容器盖的边沿向上弯折延伸形成所述第一内配合槽的内槽壁，所述第一内配合槽的内槽壁的上端部向外弯折延伸形成所述第一内配合槽的槽顶，所述第一内配合槽的槽顶的外端部向下弯折延伸形成所述第一内配合槽的外槽壁或所述第一外配合槽的内槽壁，所述第一内配合槽的外槽壁的下端部向外弯折延伸形成所述第一外配合槽的槽底，所述第一外配合槽的槽底的外端部向上弯折延伸形成所述第一外配合槽的外槽壁；所述容器体的口沿向上弯折延伸形成所述第二内配合槽的内槽壁，所述第二内配合槽的内槽壁的上端部向外弯折延伸形成所述第二内配合槽的槽顶，所述第二内配合槽的槽顶的外端部向下弯折延伸形成所述第二内配合槽的外槽壁或所述第二外配合槽的内槽壁，所述第二内配合槽的外槽壁的下端部向外弯折延伸形成所述第二外配合槽的槽底，所述第二外配合槽的槽底的外端部向上弯折延伸形成所述第二外配合槽的外槽壁。
  3. 根据权利要求1所述的一种密封包装容器，其特征在于：所述第一外配合槽以过盈配合的方式嵌套于所述第二外配合槽内或/和所述第二内配合槽以过盈配合的方式嵌套于所述第一内配合槽内。
  4. 根据权利要求3所述的一种密封包装容器，其特征在于：所述第一内配合槽的内槽壁的外侧面设置有第一内顶压部件，或所述第二内配合槽的内槽壁的内侧面设置有第二内顶压部件，或所述第一内配合槽的外槽壁的内侧面设置有第一外顶压部件，或所述第二内配合槽的外槽壁的外侧面设置有第二外顶压部件4。
  5. 根据权利要求1所述的一种密封包装容器，其特征在于：所述第一内配合槽的内槽壁与第二内配合槽的内槽壁相切；和/或所述第一内配合槽的外槽壁与第二内配合槽的外槽壁相切。
     
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CN207174277U (zh) * 2017-07-18 2018-04-03 四川聚釜有盛新材料有限公司 一种从内侧防止漏水的盛放容器
CN207341353U (zh) * 2017-09-30 2018-05-11 陈敏丽 一种新型密封快餐盒
CN108910266A (zh) * 2018-06-15 2018-11-30 泉州梅洋塑胶五金制品有限公司 一种密封包装容器的改进结构
CN108910267A (zh) * 2018-06-15 2018-11-30 泉州梅洋塑胶五金制品有限公司 密封包装容器的改良结构

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