Pressing and pulling type gasket

Abstract

The utility model relates to the technical field of packaging materials, in particular to a push-pull type gasket which comprises a gasket body, the gasket body comprises a supporting layer and a sealing layer compounded below the supporting layer, and the supporting layer is provided with an arch-shaped tearing line, a push arc line, a first tearing line and a second tearing line. The arch-shaped tearing line comprises an arc line part and a chord line part connected with the two ends of the arc line part, a receding gap for sealing is reserved between the arch-shaped tearing line and the outer edge of the gasket body, the pressing arc line is arranged on the inner side of the middle of the arc line part, an opening faces the middle of the arc line part, and one end of the first tearing line is connected with one end of the pressing arc line and extends to be connected with the middle of the arc line part; the second tearing line comprises a first transition line which is connected with the other end of the pressing arc line and is offset from the first tearing line, and a second transition line which is connected with the first transition line and is offset from the arc line part. By means of the push-pull type gasket, the structure of a container can be simplified, and the cost of the container can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging materials, in particular to a push-pull type gasket. Background Art

[0002] Milk powder, protein powder and other powdered nutritious foods are generally stored in cans, bottles and other containers, and are scooped with a quantitative spoon. In fact, after the quantitative spoon scoops the powdered nutritious food from the cans, bottles and other containers, the flat scraper at the upper opening of the cans, bottles and other containers is used to scrape away the excess powdered nutritious food per spoon, ensuring a "flat spoon" and achieving quantitative scooping of the powdered nutritious food.

[0003] In the prior art, most of the cans, bottles and other containers used to store powdered nutritious foods such as milk powder and protein powder are made of tinplate, and the bottom surface, side surface and top surface with an upper opening of the container need to be made separately and these three parts need to be combined. At the same time, the lid of the container needs to be made separately, which makes the process more complicated and increases the cost of the container. With the development of technology, injection molding is also used to make containers and lids separately, but due to the setting of the flat scraper mouth, the structure of the container is more complicated, which puts higher requirements on the mold and increases the cost of the container. Therefore, it is necessary to develop a technology that can simplify the container structure and ensure a "flat spoon". Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a push-pull type gasket, which can simplify the structure of the container and reduce the cost of the container.

[0005] In order to solve the above technical problems, the utility model provides a push-pull type gasket, including a gasket body, wherein the gasket body includes a supporting layer and a sealing layer compounded under the supporting layer, the supporting layer is provided with an arched tear line, a pressing arc line, a first tear line and a second tear line, the arched tear line includes an arc line portion and a chord line portion connecting the two ends of the arc line portion, a gap is left between the arched tear line and the outer edge of the gasket body for sealing, the pressing arc line is arranged on the inner side of the middle part of the arc line portion and the opening is toward the middle part of the arc line portion, one end of the first tear line is connected to one end of the pressing arc line and extends to connect with the middle part of the arc line portion, the second tear line includes a first transition line connected to the other end of the pressing arc line and offset from the first tear line, and a second transition line connected to the first transition line and offset from the arc line portion.

[0006] As an improvement of the above technical solution, the support layer is also provided with a bending line connecting the two ends of the pressing arc.

[0007] As an improvement of the above technical solution, one end of the first transition line is connected to the other end of the pressing arc line and the other end is connected to one end of the second transition line, and the other end of the second transition line is spaced apart from the string line portion.

[0008] As an improvement of the above technical solution, the straight-line distance between the other end of the second transition line and the chord portion is less than half of the straight-line distance between the top of the arc portion and the chord portion, and the straight-line distance between the other end of the second transition line and the chord portion is greater than the spacing between the second transition line and the arc portion.

[0009] As an improvement of the above technical solution, the arc portion is a major arc.

[0010] As an improvement of the above technical solution, the outside of the clearance gap is a plastic sealing part used to connect to the opening of the external container, and the width of the clearance gap is 8-20 mm larger than the width of the plastic sealing part.

[0011] As an improvement of the above technical solution, the distance between the second transition line and the arc portion is greater than the width of the clearance gap.

[0012] As an improvement of the above technical solution, an arc transition is provided at the connection between the arc portion and the chord portion.

[0013] As an improvement of the above technical solution, the support layer includes a PET layer, a PE micro-foam layer and an aluminum foil layer which are compositely connected in sequence from top to bottom, and the sealing layer includes a sealing film composited on the lower side of the aluminum foil layer.

[0014] As an improvement of the above technical solution, the support layer includes a PET layer, a PE micro-foam layer and an aluminum foil layer which are compositely connected in sequence from top to bottom, and the sealing layer includes a high-barrier layer composited on the lower side of the aluminum foil layer and a sealing film composited on the lower side of the high-barrier layer.

[0015] The implementation of this utility model has the following beneficial effects:

[0016] The push-pull type gasket of the utility model cooperates with each other through a support layer, a sealing layer, a bow-shaped tear line, a pressing arc line, a first tear line and a second tear line, and a flat scraper for scraping a metering spoon is arranged on the gasket body. After the gasket body is torn open by the bow-shaped tear line, an arched opening can be formed, thereby simplifying the structure of the container and reducing the cost of the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic top view of the structure of the push-pull type gasket in the embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the clearance in the embodiment of the utility model;

[0019] Figure 3 It is a stacking diagram of the gasket body structure 1 of the embodiment of the utility model;

[0020] Figure 4 It is a stacking diagram of the gasket body structure 2 of the embodiment of the utility model.

[0021] In the figure:

[0022] 100, gasket body;

[0023] 210, PET layer; 220, PE micro-foam layer; 230, aluminum foil layer;

[0024] 310, high barrier layer; 320, sealing film;

[0025] 410, bow-shaped tear line; 411, arc line portion; 412, string line portion; 420, pressing arc line; 430, first tear line; 440, second tear line; 441, first transition line; 442, second transition line; 450, bending line;

[0026] 500, clearance; 510, plastic sealing part. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, so as to more clearly understand the technical ideas claimed for protection by the present invention. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0028] It should be noted that since powdered nutritious foods such as milk powder and protein powder are easily affected by moisture and agglomerate, after these powdered nutritious foods are filled, it is necessary to seal the upper opening of the container with a sealing gasket. Since these sealing gaskets have certain isolation properties, they can reduce the chance of powdered nutritious foods affecting moisture and agglomerating before the user opens the sealing gasket.

[0029] like Figures 1 to 4 As shown, a press-pull type gasket in an embodiment of the utility model includes a gasket body 100, and the gasket body 100 includes a support layer and a sealing layer compounded under the support layer. In fact, the sealing layer can be made of a corresponding sealing film according to needs, and has corresponding moisture-proof, sealing and other isolation properties. The support layer plays a role in improving the strength of the sealing layer and ensuring the flatness of the gasket body 100.

[0030] The support layer is provided with an arcuate tear line 410, a pressing arc line 420, a first tear line 430 and a second tear line 440, so as to tear open the gasket body 100 sealed at the opening of the container, so as to allow the quantitative spoon to extend into the container to scoop up the powdered nutritious food. In addition, the depth of the arcuate tear line 410, the pressing arc line 420, the first tear line 430 and the second tear line 440 will not exceed the thickness of the support layer, so as to ensure the sealing performance of the gasket body 100 before tearing. It should be noted that the arcuate tear line 410, the pressing arc line 420, the first tear line 430 and the second tear line 440 can be punched by a CNC punching machine to tear open the gasket body 100.

[0031] The arcuate tear line 410 includes an arc portion 411 and a chord portion 412 connecting the two ends of the arc portion 411. A clearance gap 500 is left between the arcuate tear line 410 and the outer edge of the gasket body 100 for sealing. The clearance gap 500 allows the gasket body 100 to be sealed to the opening of the container and ensures the sealing performance of the gasket body 100. In a preferred embodiment of the utility model, the outside of the clearance gap 500 is preferably a sealing portion 510 for connecting to the opening of the external container. The width of the clearance gap 500 is 8-20 mm larger than the width of the sealing portion 510. In fact, the width of the sealing portion 510 matches the sealing width left at the container opening to ensure the sealing effect of the gasket body 100. In addition, the clearance gap 500 is larger than the sealing portion 510 to prevent the connection between the sealing portion 510 and the external container from being damaged during tearing, thereby ensuring that the torn portion is within the enclosed range of the arcuate tear line 410. Figure 1 As shown, the portion enclosed by the arcuate tear line 410 of the gasket body 100 is torn off, so that the gasket body 100 has an arcuate opening for the metering spoon to enter and exit, and the arcuate opening forms a flat scraping opening at the string portion 412 to scrape away excess powdered nutritious food in each spoonful, ensuring a "flat spoon".

[0032] The pressing arc 420 is arranged inside the middle of the arc portion 411 and the opening faces the middle of the arc portion 411. In fact, the size of the pressing arc 420 matches the size of the user's finger. The user presses down the enclosed part of the pressing arc 420 with his finger to tear the supporting connecting sealing layer of the enclosed part downward and serve as the starting part of tearing the entire arc-shaped opening.

[0033] One end of the first tear line 430 is connected to one end of the pressing arc 420 and extends to connect to the middle of the arc portion 411. The second tear line 440 includes a first transition line 441 connected to the other end of the pressing arc 420 and offset from the first tear line 430, and a second transition line 442 connected to the first transition line 441 and offset from the arc portion 411. Figure 1As shown, the starting part formed by the pressing arc 420 is dragged, and the gasket body 100 is continuously torn under the action of the first tear line 430 and the second tear line 440. First, under the joint action of the first tear line 430 and the first transition line 441, the gasket body 100 is torn to the middle of the arc part 411, and then torn to the left to the string part 412 under the action of the arc part 411 and the second transition line 442, and then the string part 412 is torn from left to right to the right end of the arc part 411, and torn to the middle of the arc part 411 under the action of the arc part 411, so as to form an arc-shaped opening. In a preferred embodiment of the utility model, the arc part 411 is preferably a superior arc, that is, the central angle of the arc part 411 is greater than 180°, so as to provide a larger arc-shaped opening area for the quantitative spoon to extend and extend.

[0034] The push-pull type gasket of the utility model cooperates with each other through the support layer, the sealing layer, the arched tear line 410, the pressing arc 420, the first tear line 430 and the second tear line 440, and a flat scraper for scraping the metering spoon is set on the gasket body 100. After tearing the gasket body 100 through the arched tear line 410, an arched opening can be formed, which simplifies the structure of the container and reduces the cost of the container.

[0035] It is worth mentioning that the support layer is preferably also provided with a bending line 450 connecting the two ends of the pressing arc 420. When the pressing arc 420 is pressed, the part of the gasket body 100 enclosed by the pressing arc 420 will be bent relative to the bending line 450, and then the part of the gasket body 100 enclosed by the pressing arc 420 will be bent upward. The user can continue to tear off the gasket body 100 by pulling the part of the gasket body 100 bent upward, making the tearing operation more convenient.

[0036] Specifically, one end of the first transition line 441 is preferably connected to the other end of the pressing arc 420 and the other end is connected to one end of the second transition line 442, so that the first transition line 441 has the function of cooperating with the first tear line 430 to transition to the middle of the arc portion 411; the other end of the second transition line 442 is spaced apart from the string portion 412 to prevent the torn portion of the gasket body 100 from being broken when the arc portion 411 is torn to the string portion 412, thereby ensuring the continuity of the tearing operation.

[0037] More specifically, the other end of the second transition line 442 is preferably at a straight-line distance from the string portion 412 that is less than half of the straight-line distance between the top of the arc portion 411 and the string portion 412, ensuring that the second transition line 442 has a sufficiently long distance to cooperate with the annular portion to tear open the gasket body 100; the other end of the second transition line 442 is preferably at a straight-line distance from the string portion 412 that is greater than the distance between the second transition line 442 and the arc portion 411, so that the torn portion of the gasket body 100 has sufficient strength to drive the gasket body 100 to continue to be torn along the path of the string portion 412 after the arc portion 411 is torn to the string portion 412.

[0038] In a preferred embodiment, the distance between the second transition line 442 and the arc portion 411 is preferably greater than the width of the clearance gap 500 to ensure that the torn portion of the gasket body 100 has sufficient strength to be torn along the arc portion 411 and the second transition line 442 .

[0039] In a preferred embodiment, an arc transition is preferably provided at the connection between the arc portion 411 and the string portion 412, so that the tearing operation is smoother from the arc portion 411 to the string portion 412 and from the string portion 412 to the arc portion 411, providing higher support strength for the flat scraping mouth formed by tearing the string portion 412, thereby increasing the number of times the flat scraping mouth can be used.

[0040] In the present invention, the gasket body 100 preferably adopts the following two stacking structures.

[0041] Structure 1:

[0042] The support layer includes a PET layer 210, a PE micro-foam layer 220 and an aluminum foil layer 230 which are compositely connected in sequence from top to bottom, and the sealing layer includes a sealing film 320 composited with the lower side of the aluminum foil layer 230. In fact, the PET layer 210 and the PE micro-foam layer 220 cooperate to enhance the strength of the gasket body 100, so as to ensure the flatness and strength of the gasket body 100, and ensure that the flat scraping edge formed after the gasket body 100 is torn open has sufficient strength; the aluminum foil layer 230 receives electromagnetic waves to heat the sealing film 320 during plastic sealing to achieve plastic sealing; the sealing film 320 ensures the sealing degree after plastic sealing.

[0043] Structure 2:

[0044] The support layer includes a PET layer 210, a PE micro-foam layer 220 and an aluminum foil layer 230 which are compositely connected in sequence from top to bottom, and the sealing layer includes a high-barrier layer 310 composited on the lower side of the aluminum foil layer 230 and a sealing film 320 composited on the lower side of the high-barrier layer 310. In fact, the structure 2 adds a high-barrier layer 310 on the basis of the structure 1, and the high-barrier layer 310 has a higher toughness, which improves the toughness of the sealing film 320, prevents the sealing film 320 from being broken at positions other than the arch tear line 410, the pressing arc line, the first tear line 430 and the second tear line 440, and ensures the sealing performance of the sealing film 320.

[0045] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A push-pull type gasket, characterized in that: The invention comprises a gasket body, wherein the gasket body comprises a supporting layer and a sealing layer compounded under the supporting layer, the supporting layer is provided with an arched tear line, a pressing arc line, a first tear line and a second tear line, the arched tear line comprises an arc line portion and a chord line portion connecting two ends of the arc line portion, a clearance for sealing is left between the arched tear line and the outer edge of the gasket body, the pressing arc line is arranged on the inner side of the middle part of the arc line portion and the opening faces the middle part of the arc line portion, one end of the first tear line is connected to one end of the pressing arc line and extends to connect with the middle part of the arc line portion, the second tear line comprises a first transition line connected to the other end of the pressing arc line and offset from the first tear line, and a second transition line connected to the first transition line and offset from the arc line portion.

2. A push-pull type gasket as claimed in claim 1, characterized in that: The support layer is also provided with a bending line connecting the two ends of the pressing arc line.

3. A push-pull type gasket as claimed in claim 1, characterized in that: One end of the first transition line is connected to the other end of the pressing arc line and the other end is connected to one end of the second transition line, and the other end of the second transition line is spaced apart from the string line portion.

4. A push-pull type gasket as claimed in claim 3, characterized in that: The straight-line distance between the other end of the second transition line and the chord portion is less than half of the straight-line distance between the top of the arc portion and the chord portion, and the straight-line distance between the other end of the second transition line and the chord portion is greater than the distance between the second transition line and the arc portion.

5. A push-pull type gasket as claimed in claim 3, characterized in that: The arc portion is a major arc.

6. A push-pull type gasket as claimed in claim 1, characterized in that: The outside of the clearance gap is a plastic sealing part used to connect to the opening of the external container, and the width of the clearance gap is 8-20 mm larger than the width of the plastic sealing part.

7. A push-pull type gasket as claimed in claim 1, characterized in that: The distance between the second transition line and the arc portion is greater than the width of the clearance gap.

8. The push-pull type gasket according to claim 1, characterized in that: A circular arc transition is provided at the connection between the arc line portion and the chord line portion.

9. The push-pull type gasket according to claim 1, characterized in that: The support layer comprises a PET layer, a PE micro-foam layer and an aluminum foil layer which are compositely connected in sequence from top to bottom, and the sealing layer comprises a sealing film composited on the lower side of the aluminum foil layer.

10. The push-pull type gasket according to claim 1, characterized in that: The support layer comprises a PET layer, a PE micro-foam layer and an aluminum foil layer which are compositely connected in sequence from top to bottom, and the sealing layer comprises a high barrier layer composited on the lower side of the aluminum foil layer and a sealing film composited on the lower side of the high barrier layer.

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