CN212234030U - Anti-scald paper cup - Google Patents

Abstract

The utility model provides a prevent scalding paper cup belongs to mechanical technical field. It has solved the too much problem of paper volume of current prevent scalding paper cup. This prevent scalding paper cup, including the paper cup body, it has one deck and paper cup body shape assorted pyrocondensation membrane inlayer to cover on the inner peripheral surface and the interior bottom surface of paper cup body, and the top edge of pyrocondensation membrane inlayer links firmly the upside at the paper cup body, and all the other parts are liftoff inseparable attached on paper cup body internal perisporium and interior bottom surface, form thermal-insulated clearance between the inner wall of pyrocondensation membrane inlayer and paper cup body after the pyrocondensation membrane inlayer is heated the shrink. This prevent scalding paper cup adopts pyrocondensation membrane inner layer structure developments to form thermal-insulated clearance, according to the shrink condition of being heated of difference, thermal-insulated clearance variation in size, overheated water can form great thermal-insulated clearance, and the warm water then forms less thermal-insulated clearance to can adjust thermal-insulated clearance dynamically, realize preventing scalding the effect, reduce the paper volume.

Description

Anti-scald paper cup

Technical Field

The utility model belongs to the technical field of food and beverage apparatus, a paper cup is related to, in particular to prevent scalding paper cup.

Background

Disposable paper cups have been widely used in various applications, and when used for containing hot water, single-layer paper cups do not have an anti-scald effect, and can be accidentally scalded.

To this defect, prevent scalding the paper cup at present, the infrastructure of preventing scalding the paper cup has appeared in the market is bilayer structure, and both interior paper cup adopts conventional paper cup, sheathes an outer paper cup outside including the paper cup again, produces through the thermal-insulated clearance between inlayer paper cup and the outer paper cup and prevents scalding the effect.

Common outer paper cup is like the outer paper cup of flute structure, and its main function is the intensity that increases outer paper cup, prevents that outer paper cup from pasting on the inlayer paper cup, loses and prevents scalding the effect. There are other structures that prevent the outer paper cup from contacting the inner paper cup. The disposable scald-proof paper cup disclosed in the Chinese patent application No. CN201920585967.9 comprises an inner cup body and an outer cup body, wherein the inner cup body and the outer cup body form an inverted conical annular heat insulation space, and a support ring is further arranged in the heat insulation space to prevent the outer cup body from contacting with the inner cup body in the use process.

Except that the above-mentioned bilayer structure that has thermal-insulated clearance solves the problem of preventing scalding, some solutions still adopt to design some handles on the outer paper cup and prevent scalding, perhaps directly adopt modes such as saucer to solve the problem of preventing scalding.

Above-mentioned solution all is bilayer structure or bilayer structure's deformation, and a prevent scalding paper cup is equivalent to the paper consumption volume that has used two individual layer paper cups in the aspect of the paper consumption, has increased the waste of timber resource, and the cost of single product is also higher.

Disclosure of Invention

The utility model discloses to the above-mentioned problem that prior art exists, provide an anti-scald paper cup, can solve under the condition of using the individual layer paper cup and prevent scalding the problem.

The utility model discloses a following technical scheme realizes: the utility model provides a prevent scalding paper cup, includes the paper cup body, its characterized in that covers on the inner peripheral surface of paper cup body and interior bottom surface has one deck and paper cup body shape assorted pyrocondensation membrane inlayer, the top edge of pyrocondensation membrane inlayer links firmly the upside at the paper cup body, and the liftoff attached of other parts is liftoff on paper cup body internal perisporium and interior bottom surface, forms thermal-insulated clearance between the inner wall of pyrocondensation membrane inlayer and paper cup body after the pyrocondensation membrane inlayer is heated and is contracted.

This scheme adopts pyrocondensation membrane inlayer structure developments to form thermal-insulated clearance, because the pyrocondensation membrane inlayer only the upside is fixed, all the other parts liftoff attached on paper cup body internal perisporium and interior bottom surface, when pouring hot water into, the shrink of pyrocondensation membrane inlayer is heated for the inner wall separation of pyrocondensation membrane inlayer and paper cup body, and then formed thermal-insulated clearance, the effect is prevented scalding in the realization.

As an improvement, the upper edge of the inner layer of the heat-shrinkable film is fixedly connected to the upper side of the paper cup body in a sealing mode. The structure can realize the effect of vacuum heat insulation. The internal surface at the initial time attached paper cup body of pyrocondensation membrane inlayer, clearance between the two is less, and no air exists basically, is heated the shrink back at the pyrocondensation membrane inlayer, because sealed mode links firmly, and the clearance between pyrocondensation membrane inlayer and the paper cup body is in vacuum state to with external nonconnection, thermal-insulated effect can effectively promote.

As an improvement, the middle part of the outer bottom surface of the inner layer of the heat-shrinkable film is fixedly connected with the inner bottom part of the paper cup body. The shrinkage direction of the inner layer of the heat shrinkable film is limited through the structure, so that the heat shrinkable film can shrink along the radial direction, the heat insulation gap in the radial direction is increased, and the axial shrinkage is avoided.

As an improvement, the middle part of the outer bottom surface of the inner layer of the heat-shrinkable film is fixedly connected to the inner bottom part of the paper cup body in an adhesion mode, and the adhesion section is a linear adhesion surface or a circular adhesion surface. The linear bonding surface can increase the radial heat insulation gap, and the circular bonding surface can increase the bonding area and the firmness.

As an improvement, the inner bottom surface of the paper cup body is compounded with an aluminum foil, and the middle part of the outer bottom surface of the inner layer of the heat-shrinkable film is bonded on the aluminum foil. Reduce the heating of bonding position on the one hand through the aluminium foil, on the other hand can increase the bonding firmness.

As an improvement, the upper edge of the heat-shrinkable film inner layer is bonded on the upper side of the paper cup body, and extends out of the cup opening to be wound together with the roll opening of the paper cup body.

As an improvement, the paper cup body is made of single-layer paper.

Compared with the prior art, this prevent scalding paper cup has following advantage:

1. this scheme adopts pyrocondensation membrane inner layer structure developments to form thermal-insulated clearance, according to the shrink condition of being heated of difference, thermal-insulated clearance variation in size, overheated water can form great thermal-insulated clearance, and the warm water then forms less thermal-insulated clearance to can adjust thermal-insulated clearance dynamically, realize preventing scalding the effect, and it is thermal-insulated to have formed the vacuum through sealed mode, promoted thermal-insulated effect.

2. This scheme can use on the paper cup that the individual layer paper was made, reduces the paper volume of single paper cup.

3. This pyrocondensation membrane inlayer upside rolls up mouthful and sealing bonding together with the paper cup body, and the mode that the bottom adopted and the aluminium foil bonds has increased the connection stability of pyrocondensation membrane inlayer.

Drawings

Fig. 1 is a schematic diagram of a three-dimensional explosion structure of the scald-proof paper cup.

Fig. 2 is a schematic diagram of a half-section cross-sectional structure of the scald-proof paper cup.

FIG. 3 is a schematic cross-sectional view of the inner layer of the heat shrinkable film after being heated according to one embodiment.

FIG. 4 is a schematic cross-sectional view of the inner layer of the heat shrinkable film of the second embodiment after being heated.

FIG. 5 is a schematic sectional view showing the inner layer of the heat shrinkable film of the third embodiment after being heated.

In the figure, 1, a paper cup body; 11. rolling up the opening; 2. an inner layer of a heat-shrinkable film; 21. an upper edge; 22. an outer sole surface mid-portion; 3. a thermally insulating gap; 4. a cup bottom; 41. an annular supporting leg; 5. a cup body; 6. aluminum foil.

Detailed Description

The invention will be further described in the following by way of examples with reference to the accompanying drawings.

The first embodiment is as follows:

the utility model provides a prevent scalding paper cup, like the explosion diagram shown in figure 1, includes paper cup body 1 and the thermal shrinkage film inlayer 2 of cover in paper cup body 1, the thermal-insulated clearance 3 between dynamic formation paper cup body 1 and the thermal shrinkage film inlayer 2 is come through the pyrocondensation of thermal shrinkage film inlayer 2, forms through this dynamic thermal-insulated clearance 3 and prevents scalding the effect. The method comprises the following specific steps:

as shown in fig. 2, the paper cup body 1 is a single-layer paper cup body 1, and comprises a cup bottom 4 with an annular supporting leg 41 and a cup body 5 with a turned edge, wherein the lower end of the cup body 5 is bent to wrap the annular supporting leg 41 and is bonded together through a knurling device, so that the cup body 5 and the cup bottom 4 are sealed. The inner layer 2 of the thermal shrinkage film is made of a PE film material, and can deform and shrink after being heated, and the wall thickness can increase the strength after being heated and shrunk. The shape of the inner heat shrink film layer 2 is matched with that of the paper cup body 1 at the beginning, the inner heat shrink film layer 2 covers the inner circumferential surface and the inner bottom surface of the paper cup body 1, the upper edge 21 of the inner heat shrink film layer 2 is fixedly connected to the upper side of the paper cup body 1, and the rest parts are separably attached to the inner circumferential wall and the inner bottom surface of the paper cup body 1.

As shown in fig. 3, the upper edge 21 of the inner heat-shrinkable film layer 2 is adhered to the upper side of the paper cup body 1, extends out of the cup mouth and is wound together with the roll mouth 11 of the paper cup body 1, and the upper edge 21 of the inner heat-shrinkable film layer 2 is fixedly connected to the upper side of the paper cup body 1 in a sealing manner by adopting a knurling process during adhesion. Only the upper side of the inner layer 2 of the heat-shrinkable film is fixed, and the rest parts are separably attached to the inner peripheral wall and the inner bottom surface of the paper cup body 1. When pouring hot water into, thermal shrinkage film inlayer 2 is heated the shrink for thermal shrinkage film inlayer 2 and the inner wall and the bottom surface separation of paper cup body 1, thermal shrinkage film inlayer 2 forms the state of hanging, and then has formed thermal-insulated clearance 3, realizes preventing scalding the effect. And the sealing of paper cup body 1 and the sealing between paper cup body 1 and pyrocondensation membrane inlayer 2 for thermal-insulated clearance 3 is a confined space, is heated the shrink back at pyrocondensation membrane inlayer 2, has formed the vacuum state that does not communicate with the external world, realizes the thermal-insulated effect of vacuum, promotes thermal-insulated effect.

In this example, as a weakening modification, the sealing between the cup body 5 and the cup bottom 4 may not be required, and only the sealing is required to be used as a support for the heat-shrinkable film inner layer 2, and the sealing is not required to be performed on the upper side of the heat-shrinkable film inner layer 2, so long as the heat-shrinkable film inner layer can be bonded. Although not vacuum insulation, air has a relatively slow heat conduction rate and a general insulation effect.

Example 2:

the content of the embodiment 2 is basically the same as that of the embodiment 1, except that the bottom of the heat shrinkable film inner layer 2 is fixedly connected in a different manner. In this example, as shown in fig. 4, the outer bottom surface middle portion 22 of the heat shrinkable film inner layer 2 is fixed to the inner bottom portion of the paper cup body 1 by linear adhesion. The shrinkage direction of the heat shrinkable film inner layer 2 is limited by the structure, so that the heat shrinkable film can shrink along the radial direction, the heat insulation gap 3 in the radial direction is increased, and the axial shrinkage is avoided. In order to avoid falling off, the inner bottom surface of the paper cup body 1 is compounded with an aluminum foil 6, and the middle part of the outer bottom surface of the thermal shrinkage film inner layer 2 is bonded on the aluminum foil 6. The heating of the bonding part is reduced on one hand through the aluminum foil 6, and the bonding firmness can be increased on the other hand.

Example 3:

the content of the embodiment 2 is basically the same as that of the embodiment 1, except that the bottom of the heat shrinkable film inner layer 2 is fixedly connected in a different manner. In this example, as shown in fig. 5, the middle part 22 of the outer bottom surface of the inner heat shrinkable film layer 2 is adhesively fixed to the inner bottom portion of the paper cup body 1, and the adhesive section is a circular adhesive surface. The linear bonding surface can increase the radial heat insulation gap 3, and the circular bonding surface can increase the bonding area and the firmness.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a prevent scalding paper cup, includes paper cup body (1), its characterized in that coats on the inner peripheral surface and the interior bottom surface of paper cup body (1) and is stamped one deck and paper cup body (1) shape assorted pyrocondensation membrane inlayer (2), top edge (21) of pyrocondensation membrane inlayer (2) link firmly the upside at paper cup body (1), and all the other parts are liftoff inseparable attached on paper cup body (1) internal perisporium and interior bottom surface, form thermal-insulated clearance (3) between the inner wall of pyrocondensation membrane inlayer (2) and paper cup body (1) after pyrocondensation membrane inlayer (2) are heated and are contracted.

2. An anti-scald paper cup as claimed in claim 1, characterized in that the upper edge (21) of the inner heat-shrinkable film layer (2) is attached in a sealing manner to the upper side of the paper cup body (1).

3. An anti-scald paper cup as claimed in claim 1 or 2, wherein the middle part (22) of the outer bottom surface of the heat-shrinkable film inner layer (2) is fixedly connected to the inner bottom of the paper cup body (1).

4. The scald-proof paper cup as claimed in claim 3, wherein the middle part (22) of the outer bottom surface of the inner heat-shrinkable film layer (2) is fixedly connected to the inner bottom of the paper cup body (1) in an adhesion manner, and the adhesion section is a linear adhesion surface or a circular adhesion surface.

5. The scald-proof paper cup as claimed in claim 4, wherein an aluminum foil (6) is compounded on the inner bottom surface of the paper cup body (1), and the middle part (22) of the outer bottom surface of the heat-shrinkable film inner layer (2) is bonded on the aluminum foil (6).

6. An anti-scald paper cup as claimed in claim 1 or 2, characterized in that the upper edge (21) of the heat-shrinkable film inner layer (2) is bonded to the upper side of the paper cup body (1) and extends out of the cup mouth to be wound together with the rolled mouth (11) of the paper cup body (1).

7. An anti-scald paper cup as claimed in claim 5, wherein the paper cup body (1) is made of single-layer paper.

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