Cap closure structure for a sealed container

Abstract

Cap closure structure (1) for a sealed container (8), comprising: a top cover (10) having a head plate (11) and a peripheral support (12) extending from the head plate (11), the head plate (11) including a through hole (111) and the peripheral support (12) including an inclined support surface (121) thereon; a lower cover (20) located under the upper cover (10), the lower cover (20) including a bottom plate (21) and a sealing ring (22) connected to the bottom plate (21), the bottom plate (21) including a latch (211) capable of penetrating the through-hole (111), the latch (211) having a guide structure (212), and the sealing ring (22) forming an end on another side of the inclined support surface (121); an elastic element (25) which is elastically clamped between the head plate (11) and the base plate (21); and a handle (30) comprising a selector lever (31) and an arm (32) projecting from the selector lever (31), the arm (32) being connected to a shaft (321), the shaft (321) being configured to be able to move in the guide structure (212) so that in this way the sealing ring (22) is firmly enclosed between the inclined holding surface (121) and the container (8); characterized in that the guide structure (212) is a curve and comprises a first channel (213), a second channel (214) and a curved channel (217), wherein the curved channel (217) is located between the first channel (213) and the second channel (214).

Description

BACKGROUND OF THE INVENTIONField of the invention

[0001] The technical field relates to a technique for a sealed container, particularly a cap closure structure for a sealed container. Description of the state of the art

[0002] A sealed container usually consists of a container and a lid for hermetically covering one opening of the container. The lid may be detachably attached to the container. To achieve an airtight seal at the container opening, the bottom edge of the lid is usually provided with a gasket ring. This ensures that the gasket fits tightly against the container opening when closed, thus achieving a sealing effect. Since liquids or dust can penetrate into such a sealed container and thus contaminate the gasket, or dirt can accumulate in the gap, leading to the growth of mold or even contamination of the food inside the container, thus requiring frequent removal and cleaning of the gasket. In addition, the gasket and the gasket ring slot must be dried before reinstalling the gasket, which is very inconvenient for users.

[0003] EP 2 174 882 B1 discloses a vacuum closure cap for a container, i.e., a cap closure structure for a sealed container comprising an upper lid (3) with a top plate (31) and a peripheral support (36) extending from the top plate, wherein the top plate includes a through hole (310) and the peripheral support (36) includes an inclined support surface (33) located thereon, a lower lid (4) located below the upper lid, wherein the lower lid includes a bottom plate (41) and a sealing ring (5) connected to the bottom plate, wherein the bottom plate includes a latch (6) capable of penetrating the through hole, wherein the latch includes a guide structure, and the sealing ring forms one end on another side of the inclined support surface; an elastic element (8) elastically clamped between the top plate and the bottom plate;and a handle (7) comprising a selector lever and an arm (73) projecting from the selector lever, the arm being connected to a shaft (900), the shaft being configured to be movable within the guide structure so as to firmly enclose the sealing ring between the inclined support surface and the container;

[0004] US 2013 / 0313219 A1 discloses a sealing unit for sealing a vessel comprising an inner cap having a flange, and an outer groove defined in the outer periphery of the flange. An elastic ring has a bent portion that engages with the outer groove. An outer cap has an annular recess on its underside, and the flange of the inner cap engages with the annular recess. The outer cap has an inner groove defined in its inner wall, and the elastic ring engages with the inner groove. A connecting member extends through the outer cap and is connected to the inner cap. A lever is pivotally connected to the connecting member to drive the connecting member, which moves the inner cap upward to compress the elastic ring to be deformed to seal the smooth inner periphery of the opening of the vessel.

[0005] US 2017 / 0190479 A1 discloses a closure cap comprising an outer cap, an inner cap, and an airtight seal. The outer cap is to be placed on a container. The inner cap is movably connected below the outer cap. The airtight seal is wrapped around the inner and outer caps. Two connectors extend through the outer cap and are connected to the inner cap. An actuator is disposed above the outer cap and pivotally connected to the connectors. The operator can move the inner cap relative to the outer cap between a pressurized position, in which the inner cap presses the airtight seal against the container, and a depressurized position, in which the inner cap relieves the pressure on the airtight seal against the container.

[0006] DE 20 2009 007 872 U1 discloses a vacuum sealing cap for a container comprising: an outer cap body adapted to removably cover an opening of the container and having a top wall, an inner cap body disposed beneath the outer cap body and capable of moving toward or away from it. A seal is disposed around an outer periphery of the inner cap body and compressible by the outer cap body to sealingly engage the opening of the container as the inner cap body moves toward the outer cap body. A sliding member extends movably through the outer cap body and is connected to the inner cap body, and an operating member is pivotally connected to the sliding member above the top wall of the outer cap body.In a first position, the operating element pulls the sliding element upward to move the inner cap body upward toward the outer cap body, so that the seal is pressed sealingly against the opening of the container. In a second position, the operating element pushes the sliding element downward to move the inner cap body away from the outer cap body, so that the seal is not pressed sealingly against the opening of the container.

[0007] To improve the above-mentioned disadvantages of the prior art, industrial manufacturers have developed a lid for a sealed container or a container to be sealed, which is provided with a handle and an elastic member. With such a sealed container, the handle can be used to press the lid, and the elastic reaction force of the elastic member can be used to compress the gasket to achieve the sealing effect. However, such a sealed container often suffers from uneven application of the pressing force and tilted lid placement, thus reducing the sealing effect.

[0008] Therefore, the inventor tries to overcome the above-mentioned disadvantages arising from the existing technology after years of research and testing and using academic theories, and this is also the purpose of developing the present invention. SUMMARY OF THE INVENTION

[0009] A purpose of the present invention is to provide a cap closure structure for a sealed container that utilizes a lock located directly on the bottom lid. Consequently, the overall structure is simplified, the operation is stable, and the sealing effect is excellent.

[0010] To achieve the above-mentioned purpose, the present invention provides a cap closure structure for a sealed container, which is used for attachment to a container and which consists of an upper lid, a lower lid, an elastic member, and a handle. The upper lid includes a top plate and a peripheral support extending from the top plate. The top plate includes a through hole, and the peripheral support includes an inclined support surface. The lower lid is located below the upper lid. The lower lid includes a bottom plate and a sealing ring connected to the bottom plate. The bottom plate includes a lock that can penetrate through the through hole. The lock includes a guide structure thereon, and the sealing ring includes one end located on another side of the inclined support surface.The elastic element is arranged on an outer periphery of the lock and elastically clamped between the top plate and the bottom plate. The handle comprises a selector lever and an arm extending from the selector lever. The arm is connected to a shaft, and the shaft is configured to move within the guide structure, thus firmly enclosing the sealing ring between the inclined support surface and the container.

[0011] The invention is characterized in that the guide structure is a curve and comprises a first channel, a second channel and a curved channel, wherein the curved channel is located between the first channel and the second channel.

[0012] The present invention has the following effects. By configuring the peripheral wall to surround the outer periphery of the latch, the stability of the bottom cover during upward / downward movement can be increased. The plurality of ribs located between the outer periphery of the lower fixing ring and the bottom plate can further increase structural strength. Furthermore, by molding the bottom cover and handle in one piece, the assembly time of the component can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of the cap closure structure of the present invention; Fig. 2 is a plan view of the inner portion of the top cover of the present invention; Fig. 3 is an exploded perspective view of the cap closure structure and container of the present invention; Fig. 4 is an assembly external view of the cap closure structure and container of the present invention; Fig. 5 is an assembly cross-sectional view of the cap closure structure and container of the present invention; Fig. 6 is a cross-sectional view of a use state of the cap closure structure and the container of the present invention; Fig. 7 is another cross-sectional view of the cap closure structure and container of the present invention, viewed from a different angle, and; Fig. 8 is an external perspective view of the lower cover according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] The following is a description of the technical content of the present invention with reference to the accompanying drawings. However, the accompanying drawings are for reference and illustration purposes only and do not limit the scope of the present invention in any way.

[0014] With reference to Fig. 1 to Fig. 5: The present invention provides a cap closure structure for a sealed container, which is used for attachment to the container 8. The cap closure structure 1 mainly consists of an upper lid 10, a lower lid 20, an elastic member 25, and a handle 30.

[0015] According to an exemplary embodiment, the top cover 10 has a rectangular shape, but is not limited to such a shape and may be made of a plastic material, for example, PP. The top cover 10 mainly comprises a top plate 11 and a peripheral support 12 extending from the top plate 11. A through hole 111 is located at the center of the top plate 11, and a peripheral wall 112 extends from a periphery through the through hole 111. The lower edge of the peripheral support 12 includes an inclined support surface 121.

[0016] In addition, the upper fixing ring 13 is located between the peripheral wall 112 and the peripheral bracket 12, and extends from the head plate 11. The center point of each edge plate of the upper fixing ring 13 includes an elastic hook 131 thereon. In addition, the separation distance D1 between the upper fixing ring 13 and the peripheral bracket 12 is smaller than the separation distance D2 between the upper fixing ring 13 and the center line of the head plate 11.

[0017] The lower lid 20 is located below the upper lid 10 and its shape generally corresponds to that of the upper lid 10. The lower lid 20 may be made of a plastic material such as ABS. The lower lid 20 includes a bottom plate 21 and a sealing ring 22 fixed to the bottom plate 21. The bottom plate 21 and the sealing ring 22 may be formed as a single piece using an injection molding process. The center of the bottom plate 21 includes a lock 211 extending from the bottom plate to penetrate the above-mentioned through hole 111, and the outer periphery of the lock 211 is surrounded by the peripheral wall 112; thus, the stability of the lower lid 20 during upward / downward movement can be increased. The lock 211 includes a guide structure 212. The guide structure 212 is a curve.In an exemplary embodiment, the guide structure 212 primarily comprises a first channel 213, a second channel 214, and a curved channel 217. The curved channel 217 is formed between the first channel 213 and the second channel 214. The second channel 214 is connected to the first channel 213. The first channel 213, the second channel 214, and the curved channel 217 penetrate the latch 211; however, the present invention is not limited to such a configuration.

[0018] The sealing ring 22 is made of a silicone material and has a generally rectangular shape. The ring mainly consists of a connecting portion 221 and a compression-deforming portion 222 extending from the connecting portion 221. The connecting portion 221 is fixedly attached to the periphery of the bottom plate 21. The compression-deforming portion 222 extends toward the upper cover 10 and consists of the aforementioned inclined support surface 121 on an outer side.

[0019] The bottom plate 21 includes a lower fixing ring 23 located at a location corresponding to the aforementioned upper fixing ring 13, and a locking slot 231 located at the center point of each edge plate of the lower fixing ring 23. The lower fixing ring 23 and the aforementioned upper fixing ring 13 are connected to each other. Each elastic hook 131 can move up / down within each locking slot 231. Furthermore, there are several ribs 24 between the outer periphery of the lower fixing ring 23 and the bottom plate 21 to increase structural strength.

[0020] The elastic element 25 may be a torsion spring which may be mounted on the outer periphery of the above-mentioned lock 211, and it may also be elastically clamped between the head plate 11 and the base plate 21.

[0021] The handle 30 may be made of a plastic material, such as POM, and mainly consists of the selector lever 31 and two arms 32 extending from the selector lever 31. Each arm 32 and the selector lever 31 may be molded from a single piece using an injection molding process. Each arm 32 includes a shaft 321 connected to the arm, and each shaft 321 is received in the aforementioned guide structure 212. Each shaft 321 can move in the first channel 213, the second channel 214, and the curved channel 217. Likewise, the shaft 321 may be designed as a single shaft that directly intersects each arm 32.

[0022] With reference to Fig. 5 to Fig. 7: The cap closure structure 1 of the present invention is used for attachment to a container 8. The upper portion of the container 8 includes an opening 81. The cap closure structure 1 serves to close this opening 81. During assembly, the selector lever 31 is in a vertical position, and the bottom side of each arm 32 is in contact with the outside of the head plate 11. The elastic member 25 is elastically clamped between the inside of the head plate 11 and the base plate 21. Then, the shaft 321 is located in the upper portion of the second channel 214. Under the elastic force exerted by the elastic member 25, the lower lid 20 is pushed in a direction away from the upper lid 10, and each elastic hook 131 is still locked in the locking slot 231 without any movement.At this time, the upper edge of the compression deformation portion 222 of the seal ring 22 is located below the inclined holding surface 121 (as shown in . Fig. 5 shown).

[0023] During operation, the selector lever 31 is rotated counter-horizontally, and the shaft 321 rotates at the upper portion of the second channel 214. The side surface of each arm 32 contacts the outer surface of the head plate 11 (that is, the distance between the side surface of the arm 32 and the shaft 321, which is greater than the distance between the bottom surface of the arm 32 and the shaft 321, is used; in other words, a height difference is formed in the above-mentioned relationship); then, the lower lid 20 moves toward the upper lid 10. Since the peripheral wall 112 is mounted to surround the outer periphery of the latch 211, the lower lid 20 can be stably moved. In addition, the compression deformation portion 222 of the seal ring 22 is then tightly sealed between the inclined support surface 12 and the inner wall of the container 8.

[0024] With reference to Fig.8: In addition to the above-mentioned exemplary embodiment, the upper lid of the present embodiment can also be configured differently, as described below. In another exemplary embodiment, the guide structure 212A of the latch 211A of the lower lid 20A mainly includes a pair of first guide channels 215 and a pair of second guide channels 216, which are fluidly connected to each of the first guide channels 215. In addition, each shaft 321 of the above-mentioned arms 32 is arranged corresponding to each of the first guide channels 215 and each of the second guide channels 216. Each of the first guide channels 215 and each of the second guide channels 216 does not penetrate the latch 211A. Consequently, the same effects as in the above-mentioned exemplary embodiment can be achieved.

[0025] In summary, a cap closure or lid closure structure 1 for a sealed container 8 is disclosed, comprising an upper lid 10, a lower lid 20, an elastic element 25, and a handle 30. The upper lid 10 comprises a top plate 11 with a through hole 111 and a peripheral support 12 with an inclined support surface 121. The lower lid 20, which is located below the upper lid 10, comprises a bottom plate 21 with a lock, such as a latch 211, which extends through the through hole 111, and a sealing ring 22. The lock or the locking element 211 comprises a guide structure or guide structure 212. One end of the sealing ring 22 is located on the outside of the inclined support surface 121. The elastic element 25 is located on the latch 211 and is between the top and bottom plates 21 clamped.The handle 30 comprises a selector lever 31 and an arm 32 with a shaft 321 that can move in the guide structure 212 so that the sealing ring 22 between the inclined holding surface 121 and the container 8 can be closed.

Claims

[1] Cap closure structure (1) for a sealed container (8), comprising: a top cover (10) having a head plate (11) and a peripheral support (12) extending from the head plate (11), the head plate (11) including a through hole (111) and the peripheral support (12) including an inclined support surface (121) thereon; a lower cover (20) located under the upper cover (10), the lower cover (20) including a bottom plate (21) and a sealing ring (22) connected to the bottom plate (21), the bottom plate (21) including a latch (211) capable of penetrating the through-hole (111), the latch (211) having a guide structure (212), and the sealing ring (22) forming an end on another side of the inclined support surface (121); an elastic element (25) which is elastically clamped between the head plate (11) and the base plate (21); and a handle (30) comprising a selector lever (31) and an arm (32) projecting from the selector lever (31), the arm (32) being connected to a shaft (321), the shaft (321) being configured to be able to move in the guide structure (212) so that in this way the sealing ring (22) is firmly enclosed between the inclined holding surface (121) and the container (8); characterized by in that the guide structure (212) is a curve and comprises a first channel (213), a second channel (214) and a curved channel (217), wherein the curved channel (217) is located between the first channel (213) and the second channel (214). [2] The cap closure structure (1) for a sealed container (8) according to claim 1, wherein the through-hole (111) includes a peripheral wall (112) extending from the periphery, the outer periphery of the latch (211) being configured to be surrounded by the peripheral wall (112). [3] The cap closure structure (1) for a sealed container (8) according to claim 2, wherein an upper fixing ring (13) is configured to extend between the peripheral wall (112) and the peripheral bracket (12); a separation distance between the upper fixing ring (13) and the peripheral bracket (12) is smaller than a separation distance between the upper fixing ring (13) and a center line of the head plate (11). [4] The cap closure structure (1) for a sealed container (8) according to claim 2, wherein an upper fixing ring (13) is configured to extend between the peripheral wall (112) and the peripheral bracket (12); a lower fixing ring (23) is configured to extend on the bottom plate (21) at a position corresponding to the upper fixing ring (13); the lower fixing ring (23) and the upper fixing ring (13) are mounted on each other. [5] The cap closure structure (1) for a sealed container (8) according to claim 4, wherein the upper fastening ring (13) has a plurality of elastic hooks (131), the lower fastening ring (23) includes a plurality of locking slots (231), and each of the elastic hooks (131) is fixed to each of the corresponding locking slots (231). [6] A cap closure structure (1) for a sealed container (8) according to claim 4, wherein a plurality of ribs (24) are formed between an outer periphery of the lower fixing ring (23) and the bottom plate (21). [7] The cap closure structure (1) for a sealed container (8) according to claim 1, wherein the first channel (213), the second channel (214) and the bent channel (217) penetrate into the latch (211). [8] The cap closure structure (1) for a sealed container (8) according to claim 1, wherein the number of arms (32) and the number of shafts (321) are each duplicated; each of the shafts (321) is configured to move in the first channel (213), the second channel (214) and the bent channel (217). [9] The cap closure structure (1) for a sealed container (8) according to claim 1, wherein the sealing ring (22) includes a connecting portion (221) and a compression deformation portion (222) extending from the connecting portion (221); wherein the connecting portion (221) is configured to be fixedly attached to a periphery of the bottom plate (21), and the compression deformation portion (222) is configured to extend toward the top lid (10) and is formed on an outer side of the inclined holding surface (121). [10] The cap closure structure (1) for a sealed container (8) according to claim 1, wherein the bottom plate (21) and the sealing ring (22) are formed as a single piece by an injection molding process; wherein the arm (32) and the selector lever (31) are also formed as a single piece by an injection molding process. [11] A cap closure structure (1) for a sealed container (8) according to claim 1, wherein the elastic member (25) is arranged on an outer periphery of the latch (211).

Images