CN213385571U - Easily torn cover capable of one-way air outlet and packaging tin - Google Patents
Easily torn cover capable of one-way air outlet and packaging tin Download PDFInfo
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- CN213385571U CN213385571U CN202021884016.0U CN202021884016U CN213385571U CN 213385571 U CN213385571 U CN 213385571U CN 202021884016 U CN202021884016 U CN 202021884016U CN 213385571 U CN213385571 U CN 213385571U
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Abstract
The utility model discloses an easily tear lid that can give vent to anger one-wayly, easily tear the lid including the lid circle and with the lid circle laminating with the aluminium foil that seals of sealed lid circle middle through-hole, it has first through-hole to seal to process on the aluminium foil, first diaphragm laminating is in on the first through-hole peripheral aluminium foil up end that seals, be provided with the second through-hole on the first diaphragm, the first through-hole of second through-hole intercommunication, second diaphragm setting are on first diaphragm, and terminal surface both sides and first diaphragm up end both sides are laminated mutually through the glue film under the second diaphragm, and terminal surface and first diaphragm up end do not form an outside atmospheric air channel of intercommunication, air channel intercommunication the second through-hole. The utility model discloses still disclose a packing jar, including jar body and the above-mentioned lid that easily tears, when jar internal pressure is greater than outside atmospheric pressure, jar internal gas is followed the ventilation channel discharges the outside. The utility model discloses can better protect whole packing jar, also can prolong the save time of packing the food that has the fermentation.
Description
Technical Field
The utility model belongs to the technical field of packaging container manufacturing technology and specifically relates to a can one-way give vent to anger easily tear lid and packing jar.
Background
After the existing aluminum easy-to-tear cover is matched with the tank body to form the packaging tank, the tank body can be conveniently opened as long as the sealing aluminum foil is torn off, so that the packaging tank with the easy-to-tear cover is widely applied to packaging of materials such as food. In the food with microorganism used for packaging part, the pressure in the can body is higher than the pressure of the external atmosphere because the food can generate gas by fermentation during the storage process, if the pressure in the can body can not be released, the sealing aluminum foil can be arched, even the whole packaging can be damaged, thereby not only influencing the storage of the food, but also generating potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can one-way easy lid of tearing of giving vent to anger, its and jar body cooperation can better protect whole packing jar, also can prolong the save time that the packing has the fermentation effect food, improves the safety in utilization.
In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides an easily tear lid that can one-wayly give vent to anger, includes lid circle and seals the aluminium foil, seals aluminium foil edge and lid circle laminating with the middle through-hole of sealed lid circle, and it has first through-hole to seal to process on the aluminium foil, and first diaphragm laminating is in on the first through-hole peripheral aluminium foil up end of sealing, be provided with the second through-hole on the first diaphragm, the first through-hole of second through-hole intercommunication, the second diaphragm setting is on first diaphragm, and terminal surface both sides and first diaphragm up end both sides laminate mutually through the glue film under the second diaphragm, and the part that terminal surface and first diaphragm up end do not laminate through the glue forms an outside atmospheric ventilation channel of intercommunication, ventilation channel intercommunication the second through-hole easily tears the cooperation of lid when jar body is gone up, seals the lower terminal surface and jar internal chamber intercommunication of aluminium foil, when outside atmospheric pressure more than or equal to seal terminal surface one side pressure under the aluminium foil, and the part that terminal surface did not laminate mutually through the glue film laminating through static are in order to seal under the And when the pressure on one side of the lower end face of the sealing aluminum foil is higher than the external atmospheric pressure, gas in the tank body passes through the first through hole and the second through hole and then props the second membrane to be discharged from the ventilation channel.
The improved structure is characterized in that a circular platform is arranged in the middle of the upper end face of the sealing aluminum foil, the first through hole is formed in the middle of the circular platform, the first membrane and the second membrane are in a circular shape, the second through hole is formed in the middle of the first membrane, and the first membrane is attached to the circular platform. This facilitates the snug mounting of the first membrane.
Still further, a plurality of bulges are processed on the sealing aluminum foil between the circular platform and the edge of the circular platform. Therefore, the strength of the sealing aluminum foil can be enhanced, and the attractiveness can be improved.
In a further improvement, a tearing part extends outwards from one part of the edge of the sealing aluminum foil, and the tearing part is bent towards the middle position of the sealing aluminum foil. The sealing aluminum foil is convenient to tear.
In a further improvement, the cover ring comprises an annular body, the upper end of the annular body extends outwards horizontally and then bends downwards, the lower end of the annular body extends inwards horizontally to form a circle of supporting part, and the edge of the sealing aluminum foil is adhered to the supporting part.
Still further, the inner end surface of the support portion extends downward and then rolls upward.
Preferably, the first film sheet and the second film sheet have the same thickness, and the first film sheet and the second film sheet are made of a plastic sheet.
Preferably, the cross-sectional area of the second through-hole is larger than the cross-sectional area of the first through-hole.
The utility model also provides a packaging can, including jar body foretell easily tear the lid, easily tear the outward flange of covering the lid circle and jar body upper end edge convolution together.
The improved structure is characterized in that a circle of groove which is sunken upwards is arranged on the lower end face of the tank body.
The utility model discloses because easily tear the lid cooperation when jar body on, seal the lower terminal surface and the internal chamber intercommunication of jar of aluminium foil, when outside atmospheric pressure more than or equal to sealed aluminium foil lower terminal surface lateral pressure, terminal surface and the part that first diaphragm up end did not pass through the glue film laminating are laminated mutually through static and are in order to seal under the second diaphragm the second through-hole, when sealing aluminium foil lower terminal surface lateral pressure and being greater than outside atmospheric pressure, the internal gas warp of jar first through-hole with the second through-hole then struts the second diaphragm and follow ventilation channel discharges. Therefore, when the food is packaged in the whole packaging can and fermented, and the air pressure in the packaging can is higher than the external atmospheric pressure due to fermentation, the gas in the can body passes through the first through hole and the second through hole and then the second membrane is opened to be discharged from the ventilation channel, so that the can body and the sealing aluminum foil cannot be damaged due to overhigh pressure in the can body, the whole packaging can be well protected, and the using installation performance of the packaging can is improved; and after the air exhaust is finished, when the external atmospheric pressure is more than or equal to the internal pressure of the tank body, the lower end face of the second diaphragm is attached to the part, which is not attached through the glue layer, of the upper end face of the first diaphragm through static electricity to seal the second through hole. Therefore, the food in the tank body can be protected from contacting with the outside air, and the preservation time of the packaged food with the fermentation effect can be prolonged.
Drawings
FIG. 1 is a perspective view of the easy-to-tear cover of the present invention;
FIG. 2 is a top view of the easy-to-tear cover of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is an enlarged view at C of FIG. 3;
FIG. 6 is a perspective view of the packaging can of the present invention;
FIG. 7 is a top view of the packing can of the present invention;
fig. 8 is a cross-sectional view taken along line D-D of fig. 7.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 5, the easy-to-tear cover capable of discharging air unidirectionally comprises a cover ring 1 and a sealing aluminum foil 2, wherein the edge of the sealing aluminum foil 2 is attached to the cover ring 1 to seal a through hole in the middle of the cover ring 1, the cover ring 1 comprises an annular body 11, the upper end of the annular body 11 extends horizontally outwards and then bends downwards, the lower end of the annular body 11 extends horizontally inwards to form a circle of supporting parts 12, and the edge of the sealing aluminum foil 2 is adhered to the supporting parts 12; the inner end face of the support portion 12 extends downward and then rolls upward.
The sealing aluminum foil 2 is processed with a first through hole 21, the first membrane 3 is attached to the upper end face of the sealing aluminum foil 2 at the periphery of the first through hole 21, the first membrane 3 is provided with a second through hole 31, the second through hole 31 is communicated with the first through hole 21, the second membrane 4 is arranged on the first membrane 3, two sides of the lower end face of the second membrane 4 are attached to two sides of the upper end face of the first membrane 3 through a glue layer 5, a part of the lower end face of the second membrane 4 and the upper end face of the first membrane 3 which are not attached through glue forms a ventilation channel 34 communicated with the outside atmosphere, the ventilation channel 34 is communicated with the second through hole 31, when the easy-to-tear cover is matched on the tank body, the lower end face of the sealing aluminum foil 2 is communicated with the inner cavity of the tank body, when the outside atmospheric pressure is more than or equal to the side pressure of the lower end face of the sealing aluminum foil 2, the part of the lower end face of the second membrane 4 and the upper end face of, when the pressure on one side of the lower end face of the sealing aluminum foil 2 is higher than the external atmospheric pressure, the gas in the can body passes through the first through hole 21 and the second through hole 31 and then the second membrane 4 is opened to be discharged from the ventilation channel 34.
Seal the intermediate position of aluminium foil 2 up end and be equipped with a circular platform 22, first through-hole 21 sets up the intermediate position at circular platform 22, first diaphragm 3 with second diaphragm 4 is the disc form, second through-hole 31 sets up the intermediate position of first diaphragm 3, the laminating of first diaphragm 3 is on circular platform 22.
The aluminum foil 2 is provided with a plurality of protrusions 23 between the circular platform 22 and the edge thereof.
One part of the edge of the sealing aluminum foil 2 extends outwards to form a tearing part 24, and the tearing part 24 is bent towards the middle position of the sealing aluminum foil 2.
The first membrane sheet 3 and the second membrane sheet 4 have the same thickness, and the first membrane sheet 3 and the second membrane sheet 4 are made of a plastic sheet.
The cross-sectional area of the second through-hole 31 is larger than the cross-sectional area of the first through-hole 21.
As shown in fig. 6 to 8, a packaging can comprises a can body 10 and the above-mentioned easy-to-tear cover 20, wherein the outer edge of the cover ring 1 on the easy-to-tear cover 20 is seamed with the upper end edge of the can body 10; the lower end surface of the tank body 10 is provided with a circle of groove 101 which is sunken upwards.
When the package can is filled with the food for fermentation, once the pressure in the package can is higher than the external atmospheric pressure, the gas in the can body 10 can be discharged out of the ventilation channel 34 of the easy-to-tear cover 20 by further combining the attached drawings of the easy-to-tear cover. Can better protect the whole packaging can and improve the use safety of the packaging can. After exhausting, when the external atmospheric pressure is more than or equal to the pressure on one side of the lower end face of the sealing aluminum foil 2, namely the external atmospheric pressure is more than or equal to the pressure in the tank body 10, the lower end face of the second membrane 4 is attached to the part, which is not attached through the glue layer 5, of the upper end face of the first membrane 3 through static electricity to seal the second through hole 31, so that the packaged food is isolated from the atmosphere, and the food storage time can be prolonged well.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an easily tear lid that can one-wayly give vent to anger, includes the lid circle and seals the aluminium foil, seals the aluminium foil edge and encloses the laminating with the lid and enclose middle through-hole, its characterized in that: the sealing aluminum foil is provided with a first through hole, a first membrane is attached to the upper end face of the sealing aluminum foil at the periphery of the first through hole, a second through hole is arranged on the first membrane and communicated with the first through hole, a second membrane is arranged on the first membrane, two sides of the lower end face of the second membrane are attached to two sides of the upper end face of the first membrane through glue layers, a ventilation channel communicated with the outside atmosphere is formed by the lower end face of the second membrane and the upper end face of the first membrane which are not attached through glue layers, when the tank body is matched with the easy-to-tear cover, the lower end face of the sealing aluminum foil is communicated with the inner cavity of the tank body, when the outside atmospheric pressure is more than or equal to the side pressure of the lower end face of the sealing aluminum foil, the part of the lower end face of the second membrane and the upper end face of the first membrane which are not attached through glue layers is attached through electrostatic attachment to seal the second through hole, when the side pressure, and gas in the tank body passes through the first through hole and the second through hole and then props up the second membrane to be discharged from the ventilation channel.
2. The easy-to-tear cover capable of releasing gas unidirectionally according to claim 1, wherein: the sealing aluminum foil is characterized in that a circular platform is arranged in the middle of the upper end face of the sealing aluminum foil, a first through hole is formed in the middle of the circular platform, the first diaphragm and the second diaphragm are in a circular shape, the second through hole is formed in the middle of the first diaphragm, and the first diaphragm is attached to the circular platform.
3. The easy-to-tear cover capable of releasing gas unidirectionally according to claim 2, wherein: the sealing aluminum foil is provided with a plurality of bulges between the circular platform and the edge thereof.
4. The easy-to-tear cover capable of releasing gas unidirectionally according to claim 1, wherein: one part of the edge of the sealing aluminum foil extends outwards to form a tearing part, and the tearing part is bent towards the middle position of the sealing aluminum foil.
5. The easy-to-tear cover capable of releasing gas unidirectionally according to claim 1, wherein: the cover ring comprises an annular body, the upper end of the annular body extends outwards horizontally and then bends downwards, the lower end of the annular body extends inwards horizontally to form a circle of supporting part, and the edge of the sealing aluminum foil is adhered to the supporting part.
6. The easy-to-tear cover capable of releasing gas unidirectionally according to claim 5, wherein: the inner end surface of the support portion extends downward and then rolls upward.
7. The easy-to-tear cover capable of releasing gas unidirectionally according to claim 1, wherein: the first membrane sheet and the second membrane sheet are the same in thickness and are made of plastic sheets.
8. The easy-to-tear cover capable of releasing gas unidirectionally according to any one of claims 1 to 7, wherein: the cross-sectional area of the second through-hole is larger than the cross-sectional area of the first through-hole.
9. The utility model provides a packaging can, includes jar body, its characterized in that: the easy-to-tear cover as claimed in any one of claims 1 to 8 is also included, and the outer edge of the cover ring of the easy-to-tear cover is seamed with the upper end edge of the can body.
10. The packaging can of claim 9, wherein: the lower end face of the tank body is provided with a circle of groove which is sunken upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021884016.0U CN213385571U (en) | 2020-09-02 | 2020-09-02 | Easily torn cover capable of one-way air outlet and packaging tin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021884016.0U CN213385571U (en) | 2020-09-02 | 2020-09-02 | Easily torn cover capable of one-way air outlet and packaging tin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213385571U true CN213385571U (en) | 2021-06-08 |
Family
ID=76213685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021884016.0U Active CN213385571U (en) | 2020-09-02 | 2020-09-02 | Easily torn cover capable of one-way air outlet and packaging tin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213385571U (en) |
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2020
- 2020-09-02 CN CN202021884016.0U patent/CN213385571U/en active Active
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