Tea packaging tin filled with nitrogen

Abstract

The utility model relates to the technical field of cans, in particular to a nitrogen-filled tea packaging tin, which comprises a tin body, a middle bottom compression part arranged at the lower end of the tin body and a side edge arching part arranged at the lower end of the tin body and expanding downwards, and an expansion space is formed between the middle bottom compression part and a supporting surface. Compared with a traditional tank bottom, under the condition that the same amount of liquid nitrogen is filled, the improved structure can bear higher nitrogen content (generated pressure), the placing stability of the tank can be improved, bulging of the tank can be more regular after expansion, the phenomenon that bulging of the tank bottom is not uniform is not prone to occurring, and the service life of the tank is prolonged. And the impression influence on the tank during expansion can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a jar technical field, concretely relates to a nitrogen filling's tea packing jar. BACKGROUND

[0002] Tea, commonly known as tea, generally includes the leaves and sprouts of tea trees. Tea is also known as tea, acer truncatum bunge, tea, and mian. Tea contains catechin, cholestenone, caffeine, inositol, folic acid, and pantothenic acid.

[0003] Tea packaging is a core link in the tea industry chain for protecting quality and promoting sales. It mainly maintains the shape, color, aroma, and taste of tea through moisture-proof, light-proof, and sealing technologies. Tea packaging mainly includes tin tea jars, tinplate tea jars, ceramic tea jars, glass tea jars, and paper tea jars. Tinplate tea jars are popular because of their good sealing properties, moisture resistance, oxidation resistance, and environmental friendliness.

[0004] Currently, in order to improve the preservation of tea during packaging, liquid nitrogen is filled in the jar during packaging and is fixed on the jar by a pop-top lid for closed sealing. Although the liquid nitrogen process can improve the preservation of tea in the jar, the liquid nitrogen will volatilize into nitrogen gas and fill the entire jar after filling. The bottom of the traditional packaging jar is relatively flat, which can easily cause the jar to expand and bulge, thereby causing the bottom of the jar to protrude, affecting the appearance and stability of placement. UTILITY MODEL CONTENTS

[0005] The utility model aims at the defects and deficiencies of the prior art and provides a nitrogen filling's tea packing jar.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a nitrogen filling's tea packing jar, which comprises a jar body for containing tea and a middle bottom pressure part provided at the lower end of the jar body for allowing the middle part of the jar bottom to expand downward first when the jar expands, a side edge arch part provided at the lower end of the jar body for allowing the side part of the jar bottom to expand downward after the middle bottom pressure part expands downward, and an expansion space formed between the middle bottom pressure part and a support surface.

[0007] Further improvement: The bottom of the jar body is annularly provided with an auxiliary ring part for increasing the expansion space of the middle bottom pressure part. The auxiliary ring part is connected with the side edge arch part and the middle bottom pressure part.

[0008] Further improvement: The auxiliary ring part is a circular arc part.

[0009] Further improvement: The radius of the circular arc of the auxiliary ring part is 2.8-4.2 mm.

[0010] Further improvement: The radius of the circular arc of the auxiliary ring part is 3.5 mm.

[0011] Further improvement is that the side arch part is a circular arch part.

[0012] Further improvement is that the middle bottom pressure part is a circular arch part.

[0013] Further improvement is that the circular arch part has a circular radius of 85-91mm.

[0014] Further improvement is that the circular arch part has a circular radius of 88.9mm.

[0015] Further improvement is that the auxiliary ring part is provided with a chamfer transition surface between the side arch part and the middle bottom pressure part.

[0016] After the above technical scheme is adopted, the liquid nitrogen is volatilized into nitrogen gas and fills the whole tank after being filled, when the nitrogen content is too high to make the tank body expand, the middle part of the tank bottom is first expanded downward through the middle bottom pressure part, the expansion space is provided through the expansion interval, when the expanded tank is placed on the supporting surface, the placing stability of the tank can be improved, if the nitrogen content is still too high after the middle bottom pressure part expands, the side arch part is expanded downward driven by the middle bottom pressure part, compared with the traditional tank bottom, the improved structure can bear higher nitrogen content (pressure) under the condition of filling the same amount of liquid nitrogen, and the tank bulging after expansion is more regular, and the uneven tank bottom bulging phenomenon is less likely to occur, and the visual impact on the tank during expansion can be reduced.

[0017] Further effect: when the tank body is expanded by nitrogen, the middle bottom pressure part can be expanded downward conveniently through the auxiliary ring part, the stress concentration during expansion can be reduced, the uneven expansion of the tank body affects the visual effect, and when the middle bottom pressure part expands downward, the auxiliary ring part can be expanded and deformed to improve the expansion space of the middle bottom pressure part.

[0018] Further effect: the chamfer transition surface can drive the auxiliary ring part to deform together when the middle bottom pressure part expands downward, so that the stress is not concentrated on the position of the middle bottom pressure part. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0020] Figure 1is a front view of the utility model;

[0021] Figure 2 is corresponding Figure 1 A part enlarged view.

[0022] The drawing label explanation: tank body 1, middle bottom pressure part 2, side edge arch part 3, expansion interval area 4, auxiliary ring part 5, chamfer transition surface 6, pop-up cover 7, cover 8, support boss 9. Specific implementation

[0023] The utility model is further explained in combination with the drawings and specific embodiment.

[0024] Referring to Figures 1 to 2 As shown in the figure, the technical scheme adopted by the embodiment is: a nitrogen-filled tea packaging can, comprising a can body 1 for containing tea, further comprising a middle bottom pressure part 2 arranged at the lower end of the can body 1 for allowing the middle part of the can bottom to expand downward first when the can body 1 expands, a side edge arch part 3 arranged at the lower end of the can body 1 for allowing the side part of the can bottom to expand downward after the middle bottom pressure part 2 expands downward, and an expansion interval area 4 formed between the middle bottom pressure part 2 and the support surface.

[0025] After the can body 1 is filled, a pop-up cover 7 can be embedded at the top of the can body 1, the top of the can body 1 can be sealed through the pop-up cover 7, and the customer can easily open the can body 1. After the top of the can body 1 is sealed, a cover 8 can be decorated on the top of the can body 1, the cover 8 can also play a protective role for the pop-up cover 7, and can also play a role in the appearance of the can, the cover 8 can be made of degradable and environmentally friendly materials.

[0026] The bottom outer side of the can body 1 is provided with a support boss 9, the support boss 9 is integrally formed with the can body 1, the support boss 9 is used for supporting the middle bottom pressure part 2 and the side edge arch part 3, thereby forming the expansion interval area 4, through the arrangement of the support boss 9, the distance between the middle bottom pressure part 2, the side edge arch part 3 and the support surface is increased, and the balance of the can body 1 after expansion is reduced.

[0027] The bottom of the can body 1 is annularly provided with an auxiliary ring part 5 for improving the expansion space of the middle bottom pressure part 2, the auxiliary ring part 5 is connected with the side edge arch part 3 and the middle bottom pressure part 2.

[0028] The auxiliary ring part 5 is a circular arc part. The auxiliary ring part 5 can also be provided as a conical part or an inclined part.

[0029] The radius of the circular arc of the auxiliary ring part 5 is 2.8-4.2mm.

[0030] The radius of the circular arc of the auxiliary ring part 5 is 3.5mm.

[0031] The side arch 3 is a circular arch.

[0032] The middle bottom pressure receiving part 2 is a circular arch.

[0033] The circular arch radius of the circular arch is 85-91mm.

[0034] The circular arch radius of the circular arch is 88.9mm. The diameter of the tank body 1 is 55mm, and the corresponding proportions of the circular arch radius of the circular arch and the circular arch radius of the auxiliary ring part 5 and the tank body 1 are set. When the diameter of the tank body 1 is increased, the circular arch radius of the circular arch and the circular arch radius of the auxiliary ring part 5 are also increased correspondingly.

[0035] The auxiliary ring part 5 is provided with a chamfer transition surface 6 between the side arch 3 and the middle bottom pressure receiving part 2. The chamfer transition surface 6 can be an inclined chamfer or a circular chamfer surface, and the chamfer distance is between 0.5-1.1mm, preferably 0.8mm.

[0036] The working principle of the utility model is: after filling with liquid nitrogen, nitrogen gas is volatilized in the tank and fills the entire tank. When the nitrogen content is too high to make the tank body 1 expand, the middle part of the tank bottom is first expanded downward through the middle bottom pressure receiving part 2, and the expansion space is provided through the expansion interval 4. When the expanded tank is placed on the supporting surface, the stability of the tank can be improved. If the nitrogen content is still too high after the expansion of the middle bottom pressure receiving part 2, the side arch 3 will be expanded downward driven by the middle bottom pressure receiving part 2. Compared with the traditional tank bottom, the improved structure can withstand higher nitrogen content (pressure) under the condition of filling the same amount of liquid nitrogen, and the tank bulging after expansion is more regular, and the phenomenon of uneven tank bottom bulging is less likely to occur, which can reduce the impact on the appearance of the tank during expansion.

[0037] When the tank body 1 is expanded by nitrogen, the middle bottom pressure receiving part 2 can be easily expanded downward through the auxiliary ring part 5, the stress concentration during expansion can be reduced, the uneven expansion of the tank body 1 can be reduced, and the expansion space of the middle bottom pressure receiving part 2 can be improved when the middle bottom pressure receiving part 2 is expanded downward.

[0038] The chamfer transition surface 6 can facilitate the deformation of the auxiliary ring part 5 when the middle bottom pressure receiving part 2 is deformed downward, which can prevent the stress from being too concentrated in the position of the middle bottom pressure receiving part 2.

[0039] The utility model wants to protect is the structure of product, the model of each element is not the content of the utility model protection, is also the known art, the element of market as long as can realize the above-mentioned function of the utility model can be as a kind of nitrogen filling tea packaging jar selection application. Therefore the model of element and so on parameter is not detailed in the utility model. The contribution of the utility model is that each element is combined together scientifically.

[0040] The basic principle and main features of the utility model and its advantages are shown and described above, and those skilled in the art should understand that the utility model is not limited by the above examples. The above examples and descriptions are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements. These changes and improvements fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents. The utility model is not detailed, which is known to those skilled in the art.

Claims

1. A nitrogen-filled tea packaging can, comprising a can body for accommodating tea leaves, characterized in that: The invention also includes a middle bottom pressure portion provided at the lower end of the tank body for allowing the middle part of the tank bottom to expand downward first when the tank body expands, and a side arch portion provided at the lower end of the tank body for allowing the side part of the tank bottom to expand downward after the middle bottom pressure portion expands downward. An expansion space is formed between the middle bottom pressure portion and the support surface.

2. The nitrogen-filled tea packaging can according to claim 1, characterized in that: The bottom of the tank body is provided with an auxiliary ring portion in an annular shape for increasing the expansion space of the mid-sole pressure-bearing portion. The auxiliary ring portion is connected to the side arched portion and the mid-sole pressure-bearing portion.

3. The nitrogen-filled tea packaging can according to claim 2, characterized in that: The auxiliary ring portion is an arc portion.

4. The nitrogen-filled tea packaging can according to claim 3, characterized in that: The arc radius of the auxiliary ring portion is 2.8-4.2 mm.

5. The nitrogen-filled tea packaging can according to claim 4, characterized in that: The arc radius of the auxiliary ring portion is 3.5 mm.

6. The nitrogen-filled tea packaging can according to claim 1, characterized in that: The side arched portion is a circular arc arched portion.

7. The nitrogen-filled tea packaging can according to claim 6, characterized in that: The midsole pressure-bearing portion is a circular arc arched portion.

8. A nitrogen-filled tea packaging can according to claim 6 or 7, characterized in that: The arc radius of the arc arched portion is 85-91 mm.

9. The nitrogen-filled tea packaging can according to claim 8, characterized in that: The arc radius of the arc arched portion is 88.9 mm.

10. A nitrogen-filled tea packaging can according to claim 2, 3, 4 or 5, characterized in that: A chamfered transition surface is provided between the auxiliary ring portion and the side arched portion and the midsole pressure-bearing portion.

Images