CN217309793U - Heat insulation cup - Google Patents

Abstract

The utility model relates to a vacuum cup, which comprises an inner container and a shell, wherein the inner container comprises an inner layer of a titanium inner container and an outer layer of a metal inner container, the outer side surface of the inner layer of the inner container is clung to the inner wall surface of the outer layer of the inner container, and the bottom of the inner layer of the inner container is clung to the bottom of the outer layer of the inner container; the shell comprises a metal shell inner layer and a titanium shell outer layer, and a vacuum layer is formed between the metal shell inner layer and the metal liner outer layer; the outer layer of the titanium shell is a mouth sleeve sleeved at the mouth part of the inner layer of the shell, and the mouth part of the mouth sleeve is welded and fixed with the inner layer of the inner container; or the outer layer of the titanium shell is sleeved on and surrounds the whole inner layer of the shell, and the opening part of the titanium shell is welded and fixed with the inner layer of the liner. The outer layer of the inner container and the inner layer of the inner container are tightly attached, and the outer layer of the shell and the inner layer of the shell are tightly attached, so that the thickness of the inner container is increased, the outer layer of the inner container plays a role in strengthening the inner layer of the inner container, and the thinner inner layer of the inner container can be used for reducing the cost and effectively reducing the air permeability of the inner layer of the inner container; and the inside and the outside of the cup mouth are made of titanium materials, so that the cup is safe and healthy to drink.

Description

Heat insulation cup

Technical Field

The utility model relates to a thermos cup technical field especially relates to a thermos cup.

Background

Vacuum cups in the market are basically stainless steel vacuum cups, and the two indexes of acid resistance and heavy metal content of 304 stainless steel materials cannot meet the daily use scenes of consumers, for example, the vacuum cups are easily corroded by acid or cause heavy metal to be separated out in the process of containing tea, beverages, acidic beverages or foods, so that the health of human bodies is affected. In recent years, the composite titanium cup is produced by solving the above disadvantages of the 304 stainless steel material due to the advantages of the titanium material, and is healthier.

However, titanium metal has air permeability, and the vacuum cup with the inner liner has the defects of poor heat insulation performance and chronic air leakage. For example, in a process for manufacturing a vacuum cup with a titanium composite inner container disclosed in patent CN112826298A, a gap is left between the titanium layer of the inner container and the stainless steel middle layer, and inert gas is injected after vacuum pumping to generate a heat preservation effect. The titanium composite liner in the technology has the following defects: the stainless steel middle-layer liner protrudes inwards or the liner inner layer protrudes outwards, the stainless steel middle-layer liner and the liner inner layer are tightly matched through the protruding parts, and the stainless steel middle layer does not have the function of reinforcing the liner inner layer and only has the function of supporting and fixing. Secondly, the titanium metal thickness can produce the gas permeability below 0.5mm, therefore the inner layer of inner bag needs thicker thickness in order to guarantee sealed and heat preservation. However, if thicker titanium metal is used, the price is higher, and the cost of the vacuum cup is increased. In addition, the inner layer of the inner container and the stainless steel middle layer need to be welded after the inert gas is injected, the titanium and the stainless steel cannot be welded to ensure the sealing performance, and the injected inert gas can leak slowly from the welding position of the cup mouth and finally cannot achieve the heat preservation effect. In addition, the outer cup opening of the three-layer composite vacuum cup formed by the process is made of stainless steel, so that the drinking safety and health are influenced.

Disclosure of Invention

An object of the utility model is to provide a thermos cup to solve the problem of above-mentioned thermos cup.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a vacuum cup, which comprises an inner container and an outer shell,

the inner container comprises a titanium inner container inner layer and a metal inner container outer layer, the outer side surface of the inner container inner layer is tightly attached to the inner wall surface of the inner container outer layer, and the bottom of the inner container inner layer is tightly attached to the bottom of the inner container outer layer;

the shell comprises a metal shell inner layer and a titanium shell outer layer, and a vacuum layer is formed between the metal shell inner layer and the metal liner outer layer;

the outer layer of the titanium shell is a mouth sleeve sleeved at the mouth part of the inner layer of the shell, and the mouth part of the mouth sleeve is welded and fixed with the inner layer of the inner container; or the outer layer of the titanium shell is sleeved on and surrounds the inner layer of the whole shell, and the opening part of the outer layer of the titanium shell is welded and fixed with the inner layer of the inner container.

According to the vacuum cup provided by the technical scheme, the outer side surface of the inner liner inner layer is tightly attached to the inner wall surface of the inner liner outer layer, the bottom of the inner liner inner layer is tightly attached to the bottom of the inner liner outer layer, namely the inner liner outer layer is tightly attached to the inner liner inner layer, so that the thickness of the inner liner is increased, the inner liner outer layer plays a role in reinforcing the inner liner inner layer, and the thinner inner liner inner layer can be used for reducing the cost; but also can effectively reduce the air permeability of the inner layer of the liner and ensure sealing and heat preservation. In addition, the outer layer of the shell is made of titanium and is welded and fixed with the inner layer of the titanium liner, so that when the cup is drunk, the parts inside and outside the cup mouth in contact with the mouth are made of titanium metal, and the cup is safe and healthy to drink.

Preferably, the outer layer of the titanium shell is tightly attached to the inner layer of the metal shell.

Preferably, the upper end of the mouth sleeve is welded and fixed with the inner layer of the inner container, the lower end of the mouth sleeve is abutted against the inner layer of the outer shell, and the mouth sleeve is tightly attached to the inner layer of the outer shell.

The shell inner layer plays a role in reinforcing the shell outer layer, the cost of the vacuum cup can be reduced by using thin titanium metal, and the vacuum cup which is made of titanium materials inside and outside is achieved, so that the part which is in contact with the mouth inside and outside the cup opening is made of titanium metal, and the vacuum cup is safe and healthy to drink.

Preferably, the inner layer of the inner container is provided with an extension part formed by bending, and the outer layer of the titanium shell is welded and fixed with the extension part of the inner layer of the inner container. The cup mouth can be widened by the extension part of the inner layer of the inner container, and the drinking comfort of the cup mouth is improved.

Preferably, the first opening of the outer layer of the inner container is bent outwards to form a flanging part, and the inner layer of the outer shell and the flanging part of the outer layer of the inner container are welded and fixed. Because the flanging part on the outer layer of the inner container is thicker than the non-flanging part, the influence of titanium metal in the inner layer of the inner container during welding can be reduced, and the sealing property of the vacuum layer can be improved.

Preferably, the outer layer of the inner container is provided with an exhaust groove, and/or the bottom of the inner layer of the inner container is provided with a small hole. When the inner layer of the inner container is pushed downwards along the inner wall of the outer layer of the inner container, the air discharge groove arranged on the outer layer of the inner container and/or the small hole arranged at the bottom of the inner layer of the inner container enable air between the outer layer of the inner container and the inner layer of the inner container to be discharged smoothly.

Preferably, the outer side of the opening of the outer layer of the titanium shell is provided with threads which are matched with the cup opening. The screw connection is adopted, so that the adaptability is better.

Preferably, the bottom of the inner layer of the metal shell or the outer layer of the titanium shell is provided with a cushion pad. When the vacuum cup falls or is placed, the buffer cushion can play a role in buffering, and the damage to the vacuum cup is reduced; in addition, the buffer pad also has the function of beauty, and the beauty of the vacuum cup is further improved.

Drawings

Fig. 1 is a schematic structural view of an inner layer of an inner container in an embodiment of the present invention;

fig. 2 is a schematic structural view of an outer layer of an inner container in an embodiment of the present invention;

fig. 3 is a schematic view illustrating the inner layer of the inner container inserted into the outer layer of the inner container according to an embodiment of the present invention;

fig. 4 is a schematic view of the inner container outer layer bottom sealing in one embodiment of the present invention;

fig. 5 is a schematic view illustrating that the inner layer of the inner container is pushed down to the bottom along the inner wall of the outer layer of the inner container to be closely attached in one embodiment of the present invention;

fig. 6 is a schematic view of the inner container after necking the outer layer of the inner container in an embodiment of the present invention;

fig. 7 is a schematic view showing that the inner container is sleeved into the inner layer of the outer shell from the bottom and the bottom plate is welded in one embodiment of the present invention;

fig. 8 is a schematic view illustrating an inner layer of the inner container being bent outward to form an extension portion according to an embodiment of the present invention;

FIG. 9 is a schematic view of a vacuum cup with a titanium shell having an outer opening covering an inner opening of the shell according to an embodiment of the present invention;

FIG. 10 is a schematic view of an embodiment of the present invention in which a vacuum cup surrounding the entire inner shell is covered by an outer layer of a titanium shell;

FIG. 11 is a schematic view of an embodiment of the present invention, wherein the outer layer of the inner container has an air vent;

fig. 12 is a schematic view illustrating an outer layer of the inner container having a flange portion according to an embodiment of the present invention.

Description of reference numerals:

1. an inner layer of the inner container; 11. a first bottom portion; 12. an extension portion; 2. an outer layer of the inner container; 21. a first opening; 22. a second opening; 23. a second bottom; 24. flanging part; 25. an exhaust groove; 3. a housing; 31. an outer shell inner layer; 32. an outer shell layer; 4. a vacuum layer; 5. an air bag; 6. a cushion pad.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 9-10, an embodiment of the present invention provides a vacuum cup, which includes an inner container and a housing;

the inner container comprises a titanium inner container inner layer 1 and a metal inner container outer layer 2, the outer side surface of the inner container inner layer 1 is tightly attached to the inner wall surface of the inner container outer layer 2, and the bottom of the inner container inner layer 1 is tightly attached to the bottom of the inner container outer layer 2;

the shell 3 comprises a metal shell inner layer 31 and a titanium shell outer layer 32, and a vacuum layer is formed between the metal shell inner layer 31 and the metal liner outer layer 2;

the titanium outer shell layer 32 is a mouth sleeve sleeved on the mouth part of the inner shell layer 31, and the mouth part of the mouth sleeve is welded and fixed with the inner liner layer 1; or the titanium outer shell layer 32 is sleeved on and surrounds the whole inner shell layer 31, and the mouth part of the titanium outer shell layer is welded and fixed with the inner liner layer 1.

The embodiment of the utility model provides a pair of vacuum cup, the lateral surface of inner bag inlayer 1 and the internal face of inner bag outer 2 are hugged closely, the bottom of inner bag inlayer 1 is hugged closely with the bottom of inner bag outer 2, inner bag outer 2 and inner bag inlayer 1 are hugged closely promptly, inner bag thickness increases from this, inner bag outer 2 plays the effect of strengthening to inner bag inlayer 1, can use thinner inner bag inlayer 1 with reduce cost, and can also effectively reduce inner bag inlayer 1 gas permeability, and can guarantee sealed and heat preservation.

It can be understood that the outer layer 32 of the shell is tightly attached to the inner layer 31 of the shell, the thickness of the shell is increased, the outer layer 32 of the shell is sleeved on the opening of the inner layer 31 of the shell or the outer layer 32 of the shell made of a thinner titanium material is adopted, and the cost of the vacuum cup is reduced. In addition, the outer shell layer 32 of the vacuum cup formed by the method is made of titanium materials and is welded and fixed with the inner container layer 1 made of titanium materials. Therefore, when drinking, the parts inside and outside the cup mouth in contact with the mouth are all titanium metal, and the drinking is safe and healthy.

Referring to fig. 1-4, a vacuum cup according to an embodiment of the present invention includes an inner layer 1 made of titanium, the inner layer 1 includes an opening at one end and a first bottom 11 at the other end; and further comprises an inner container outer layer 2 with a first opening 21 and a second opening 22. The inner liner layer 1 is sleeved into the outer liner layer 2 from the second opening 22, and a preset distance is formed between the first bottom 11 of the inner liner layer 1 and the bottom end of the outer liner layer 2; the predetermined spacing is greater than 3 mm. When the second bottom 23 of the outer layer 2 of the inner container is welded, a reaction occurs if the distance between the bottom end of the outer layer 2 of the inner container and the first bottom 11 of the inner layer 1 of the inner container is too close. Consequently, set up the interval of predetermineeing that is greater than 3mm, can effectively avoid the outer 2 bottoms of inner bag and the too near production reaction of first bottom 11 of inner bag inlayer 1 to the bad condition of inner bag outer 2 second bottoms 23 welding appears.

Referring to fig. 5-6, in order to achieve the tight contact between the outer side surface of the inner liner layer 1 and the inner wall surface of the inner liner outer layer 2, and the tight contact between the bottom of the inner liner layer 1 and the bottom of the inner liner outer layer 2, the specific operations are as follows:

the inner liner layer 1 is pushed downwards, so that the outer side surface of the inner liner layer 1 is tightly attached to the inner wall surface of the outer liner layer 2, and the first bottom of the inner liner layer 1 is tightly attached to the second bottom 23 of the outer liner layer 2. At this time, the opening of the inner liner inner layer 1 protrudes out of the first opening 21 of the inner liner outer layer 2 to form the extension portion 12. After the outer 2 of inner bag hugged closely with inner bag inlayer 1, inner bag thickness increases, and outer 2 of inner bag plays the effect of strengthening to inner bag inlayer 1, can use thinner 1 reduce cost of inner bag inlayer, can also effectively reduce 1 gas permeability of inner bag inlayer to the installation cooperation of two-layer metal has still been accomplished. In addition, the inner container outer layer 2 and the inner container inner layer 1 have better sealing performance; it can be understood that, the back is hugged closely to inner bag outer 2 and inner bag inlayer 1, not only reaches the requirement to the processing shape, can also be with the air escape between inner bag outer 2 and the inner bag inlayer 1, need not to realize through processes such as evacuation towards inert gas.

It can be understood that, in the process of pushing the inner liner layer 1 downwards along the inner wall of the inner liner outer layer 2 to make the outer side surface of the inner liner layer 1 and the inner wall surface of the inner liner outer layer 2 tightly attached, and making the first bottom 11 of the inner liner layer 1 and the second bottom 23 of the inner liner outer layer 2 tightly attached, because the inner liner layer made of titanium has a relatively thin thickness and has a certain elasticity, a certain gap is generated between the outer side surface of the inner liner layer and the inner wall surface of the inner liner outer layer under the pressure of air, and the air is smoothly discharged from the gap. The inner liner layer 1 is pushed downwards along the inner wall of the outer liner layer 2 until the first bottom 11 of the inner liner layer 1 is tightly attached to the second bottom 23 of the outer liner layer 2, and the outer side surface of the inner liner layer 1 and the inner wall surface of the outer liner layer 2 are restored to be tightly attached due to the elastic resilience of the inner liner layer made of titanium.

Preferably, as shown in fig. 11, an exhaust groove 25 may be further provided on the inner liner outer layer 2, one or more exhaust grooves 25 may be provided on the exhaust groove 25, and when the inner liner inner layer 1 is pushed down along the inner wall of the inner liner outer layer 2, air is exhausted through a channel formed by the exhaust groove 25 in addition to a gap formed between the inner liner inner layer 1 and the inner liner outer layer 2 in the pushing process. Therefore, air can be discharged more smoothly in the pushing process.

Preferably, a small hole with the aperture not larger than 0.1 mm can also be arranged at the bottom of the inner liner layer 1. When pushing down inner bag inlayer 1 along the inner wall of inner bag outer 2, the air is discharged through the clearance that forms between promotion in-process inner bag inlayer 1 and the inner bag outer 2, still discharges through the aperture that inner bag inlayer 1 bottom set up. Thus, the air is more smoothly discharged during the pushing process. Push down inner bag inlayer 1 along the inner wall of inner bag outer 2, hug closely the back until the first bottom 11 of inner bag inlayer 1 and the second bottom 23 of inner bag outer 2, because the aperture of aperture is not more than 0.1 millimeter, and the inner bag inlayer is hugged closely with the inner bag outer, does not influence the normal use of thermos cup.

Preferably, referring to fig. 6, when the inner liner inner layer 1 is pushed downward, an air bag 5 is generated between the inner liner outer layer 2 and the inner liner inner layer 1, and the air bag 5 is close to a shoulder of the inner liner outer layer 2, so that the inner liner outer layer 2 can be necked again, and the air bag 5 generated between the inner liner inner layer 1 and the inner liner outer layer 2 is eliminated.

Referring to fig. 7, forming the case layer 3 includes forming a case inner layer 31 and a case outer layer 32. The end of the inner shell layer 31 close to the first opening 21 is welded with the outer liner layer 2, the end of the inner shell layer 31 close to the second opening 22 is welded and vacuumized, and a vacuum layer 4 is formed between the inner shell layer 31 and the outer liner layer 2.

Referring to fig. 8, the extension portion 12 of the inner liner layer 1 is bent and flanged outwards, and simultaneously, a deburring process is required to be performed on the flanged portion of the extension portion 12.

Referring to fig. 9 or fig. 10, the outer shell 32 is tightly fitted over the inner shell 31, and the mouth of the outer shell 32 is welded and fixed to the extension 12 of the inner liner 1.

The specific steps for forming the outer shell 32 are as follows: rolling and welding a titanium plate into a titanium pipe, necking the upper part of the titanium pipe to a preset size and extruding threads to form a shell outer layer 32 with two openings; or a titanium pipe is adopted, the upper part of the titanium pipe is reduced to a preset size, and threads are pressed out to form the outer shell layer 32 with two openings.

As shown in FIG. 9, the titanium outer shell 32 may be a mouth sleeve which is only sleeved on the mouth of the inner shell 31, and the mouth of the mouth sleeve is welded and fixed with the extension part 12 of the inner liner 1, and the lower end of the mouth sleeve is abutted against the inner shell 31, preferably against the shoulder of the inner shell 31.

As shown in fig. 10, the titanium outer shell layer 32 may also be sleeved around the entire inner shell layer 31, and its mouth is welded and fixed to the extension portion 12 of the inner liner layer 1.

It can be understood that the outer shell layer 32 is tightly sleeved outside the inner shell layer 31, the outer shell layer 31 plays a role in reinforcing the outer shell layer 32, and thinner titanium metal can be used for reducing the cost of the vacuum cup. The extending part 12 can be flanged, the opening of the cup body is bent and the outer layer 32 of the shell made of the same metal is welded, so that the inside and the outside of the vacuum cup made of the titanium material are both the titanium metal, and the drinking safety of the vacuum cup is improved.

It can be understood that when the inner container is vacuumized, residual air between the inner container inner layer 1 and the inner container outer layer 2 can be pumped out from the unsealed inner container opening part, so that the phenomenon of bulging caused by the fact that the residual air cannot be discharged between the inner containers is prevented, and the yield is greatly improved; moreover, after the inner container outer layer 2 and the inner container inner layer 1 are tightly attached, the thickness of the inner container is increased, the inner container outer layer 2 plays a role in reinforcing the inner container inner layer 1, the cost of the thinner inner container inner layer 1 can be reduced, and the air permeability of the inner container inner layer 1 can be effectively reduced.

The double-layer liner and the double-layer shell are respectively arranged in a laminating manner, the liner outer layer 2 plays a role in reinforcing the liner inner layer 1, the shell inner layer 31 also plays a role in reinforcing the shell outer layer 32, and thinner titanium metal can be used at two positions, so that the cost of the inner and outer titanium metal vacuum cups is reduced; meanwhile, the vacuum cup with the inside and the outside of the opening part of the vacuum cup made of titanium materials is achieved, and the drinking safety is improved.

Referring to fig. 12, as a preferred embodiment, the inner liner outer layer 2 further includes a flanging portion 24 formed by bending the first opening 21 of the inner liner outer layer 2 outwards. When the end of the inner shell 31 close to the first opening 21 is welded with the outer shell 2 of the liner, the end is welded with the flanging part 24. It can be understood that, the inner layer 31 of the shell is welded at the flanging part 24, and the flanging part 24 of the outer layer 2 of the liner is thicker than the non-flanging part, so that the influence of titanium metal in the inner layer 1 of the liner during welding can be reduced, and the sealing performance of the vacuum layer 4 can be improved.

Preferably, as shown in fig. 10, a cushion pad 6 may be embedded at the bottom of the outer shell 32. The bottom of the outer layer 32 of the housing is formed with a groove in which the cushion pad 6 is embedded. The buffer pad 6 can be made of materials such as silica gel, and can be designed with required patterns to enhance the appearance. When the cup is placed or falls, the buffer pad 6 can play a buffer role, and damage to the cup is reduced.

It can be understood that, when the titanium outer shell 32 is a mouth sleeve which is only sleeved on the mouth of the inner shell 31, a groove is formed at the bottom of the inner shell 31, and the buffer pad 6 is embedded in the groove at the bottom of the inner shell 31.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (8)

1. A vacuum cup is characterized by comprising an inner container and an outer shell,

the inner container comprises an inner container layer (1) made of titanium and an outer container layer (2) made of metal, the outer side surface of the inner container layer (1) is tightly attached to the inner wall surface of the outer container layer (2), and the bottom of the inner container layer (1) is tightly attached to the bottom of the outer container layer (2);

the shell comprises a metal shell inner layer (31) and a titanium shell outer layer (32), and a vacuum layer (4) is formed between the metal shell inner layer (31) and the metal liner outer layer (2);

the outer layer (32) of the titanium shell is a mouth sleeve sleeved at the mouth part of the inner layer (31) of the shell, and the mouth part of the mouth sleeve is welded and fixed with the inner layer (1) of the inner container; or the titanium outer shell layer (32) is sleeved on and surrounds the whole inner shell layer (31), and the opening part of the titanium outer shell layer is welded and fixed with the inner container inner layer (1).

2. A thermos cup according to claim 1, characterized in that the outer layer (32) of the titanium shell is in close contact with the inner layer (31) of the metal shell.

3. A thermos cup according to claim 1, characterized in that the upper end of the mouth sleeve is welded and fixed with the inner liner layer (1), the lower end of the mouth sleeve is abutted against the outer shell inner layer (31), and the mouth sleeve is tightly attached to the outer shell inner layer (31).

4. The vacuum cup as claimed in claim 1, characterized in that the inner liner layer (1) is provided with an extension portion formed by bending, and the outer shell layer (32) made of titanium is welded and fixed with the extension portion of the inner liner layer (1).

5. A vacuum cup as claimed in claim 1, characterized in that the first opening (21) of the inner liner outer layer (2) is bent outwards to form a flanging part (24), and the shell inner layer (31) and the flanging part (24) of the inner liner outer layer are welded and fixed.

6. A thermos cup according to any of the claims 1 to 5, characterized in that the outer layer (2) of the inner container is provided with an air discharge slot (25) and/or the bottom of the inner layer (1) of the inner container is provided with a small hole.

7. A thermos cup according to any of claims 1-5, characterized in that the outer side of the mouth of the outer layer (32) of the titanium shell is provided with threads which are matched with the cup mouth.

8. A vacuum cup according to any of claims 1 to 5, characterized in that a buffer (6) is arranged at the bottom of the inner layer (31) of the metal shell or the outer layer (32) of the titanium shell.

Images