Cooling vacuum cup with three layers of titanium inner containers

Abstract

The utility model discloses a cooling vacuum cup with a three-layer titanium inner container, which relates to cups and is characterized in that the cooling vacuum cup comprises a shell, a middle layer and the inner container which are sequentially arranged from outside to inside, a vacuum layer is formed between the shell and the middle layer, and solid phase change material filler is arranged between the middle layer and the inner container. The top ends of the outer shell and the inner container are bent to form a rolling opening. The space between the inner container and the middle layer is filled with the solid phase-change material filler, the vacuum layer is arranged on the outer layer, the good cooling effect is achieved, the cooling rate after the temperature is reduced to the proper temperature is delayed, the inner container is made of metal titanium or alloy materials of the metal titanium, and the good antibacterial, bacteriostatic and corrosion-resistant effects can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cup technical field more specifically, it relates to a three layer titanium inner container cooling vacuum cup. BACKGROUND

[0002] The vacuum cup is generally made of ceramic or stainless steel plus vacuum layer to hold water, and the top has a cover, which is tightly sealed, and the vacuum insulation layer can slow down the heat dissipation of the liquid inside to achieve the purpose of heat preservation.

[0003] The vacuum cup is composed of a metal inner container and an outer shell. The inner container and the outer shell are evacuated to play a heat preservation role. Since the inner container of the vacuum cup needs to be in contact with the liquid for a long time, the safety issues such as corrosion resistance, antibacterial property, and heavy metal release of the inner container need to be paid attention to. In the past few decades, in order to solve the safety problems of the inner container of the vacuum cup, the industry has upgraded the material of the inner container from 201 stainless steel to 304 stainless steel, and now 316 stainless steel is commonly used, but there are still problems of poor corrosion resistance and heavy metal release.

[0004] Therefore, the industry gradually introduces a scheme of replacing stainless steel with metal titanium, which has good corrosion resistance, antibacterial property, and does not contain heavy metals. However, due to the high price of metal titanium, the all-titanium vacuum cup made of metal titanium shell and inner container is not easily accepted by the market, so a product scheme combining metal titanium inner container and stainless steel outer shell is derived:

[0005] For example, patents CN202010068652.4, CN202010882175.5, CN202011021341.9, CN202011053898.0, and CN202011525414.8 fix a titanium inner liner and a stainless steel interlayer together mechanically, and then weld the stainless steel outer shell of the inner liner to the stainless steel outer shell of the cup body, forming a three-layer structure with a titanium inner liner, a stainless steel middle layer, and a stainless steel outer shell forming a vacuum layer. The mechanical pressing of the titanium and stainless steel layers in the inner liner overcomes the problem of brittle alloy formed by directly welding titanium and stainless steel. Our company filed an application on April 22, 2022. The patent application CN114732267B, entitled "A Vacuum Insulated Cup and Its Preparation Method," describes a technical solution as follows: A first-level sealing and fixing structure for the cup mouth is formed by a first inner rolled edge, an outer rolled edge, a second inner rolled edge, and a shell. A second-level sealing and fixing structure for the cup mouth is formed by applying solder paste and / or ring-shaped solder to at least one location in the cavity, gap, or junction, and then brazing the shell and inner liner together. Due to the adoption of this two-level sealing and fixing structure, the insulated cup of this invention has better sealing performance and resistance to deformation. The two-level sealing and fixing structure design is relatively ingenious, increasing sealing and fixing effects while reducing structural complexity.

[0006] Meanwhile, our company has also applied for two utility model patents with publication numbers CN217013489U and CN217659139U. Based on this, our company found that most thermos cups on the market use a vacuum method to form an air layer to achieve the effect of keeping the temperature hot or cold. However, such thermos cups can only slow down the temperature change of the solution inside the thermos cup, but it is difficult to make the solution inside the thermos cup cool down to a suitable temperature quickly and keep it warm within the corresponding temperature range for direct drinking.

[0007] Therefore, a new solution is needed to address this problem. Utility Model Content

[0008] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a three-layer titanium inner liner for cooling and insulation.

[0009] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a three-layer titanium inner liner cooling and insulation cup, comprising an outer shell, a middle layer and an inner liner arranged sequentially from the outside to the inside, a vacuum layer is formed between the outer shell and the middle layer, a solid phase change material filler is provided between the middle layer and the inner liner, and the tops of the outer shell and the inner liner are bent to form rolled edges.

[0010] The utility model further sets up: the shell and intermediate layer all are equipped with necking section, the end of intermediate layer is welded with the necking section of shell, the solid phase change material filling fills in the intermediate layer and the inner bag between and covers the junction of intermediate layer and shell.

[0011] The utility model further sets up: the shell and the fit place of inner bag are equipped with elastic sealing element, the elastic sealing element is clamped in the position of the necking of inner bag and shell.

[0012] The utility model further sets up: the necking includes the horizontal section formed by the bending of inner bag, U section and the inverted U of the bending of shell, the inverted U is embedded in the U section, and the bending section of inverted U is in contact with the inner surface of horizontal section.

[0013] The utility model further sets up: the shell is formed with the conical recess in the center of bottom and the annular groove with the same center as the conical recess, and the annular groove is used for accommodating the anti-skid ring.

[0014] The utility model further sets up: the bottom of inner bag and intermediate layer is integrally formed with the arc-shaped part bending towards the opening of inner bag, and the spacing between the arc-shaped part and the shell is greater than the average spacing between the intermediate layer and the shell.

[0015] The utility model further sets up: the inner bag is integrally made of metal titanium or titanium alloy material.

[0016] In summary, the utility model has the following beneficial effects:

[0017] In the application, the intermediate layer and the shell are welded to form a vacuum layer, which guarantees the heat preservation effect of the vacuum cup, reduces the heat loss of the solution in the inner bag and the solid phase change material filling during phase change, and achieves good heat preservation / cooling effect. The cavity is formed between the inner bag and the intermediate layer to accommodate the solid phase change material filling. Through the phase change characteristics of the solid phase change material, when hot water is contained in the inner bag, the phase change process of the phase change material can store the heat energy of the hot water in the inner bag, accelerate the cooling of the hot water to a suitable temperature for drinking, and during the long period of static state, the vacuum layer reduces the heat loss, and the reverse phase change process of the solid phase change material filling changes the physical state and releases the stored latent heat, so as to maintain the temperature within a certain temperature range and achieve the effect of long-term heat preservation.

[0018] The solid phase change material filling is filled between the inner bag and the intermediate layer, and the outer layer is provided with a vacuum layer, which can achieve good cooling and slow down the cooling rate after the temperature reaches a suitable temperature. The inner bag is made of metal titanium or its alloy material, which can achieve good antibacterial and corrosion-resistant effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the utility model;

[0020] Figure 2 It is a structure schematic view of the utility model;

[0021] Figure 3 It is Figure 2 A part enlarged schematic view of the utility model;

[0022] Figure 4 It is Figure 2 B part enlarged schematic view of the utility model.

[0023] In the drawing: 1, shell; 2, intermediate layer; 3, inner container; 4, vacuum layer; 5, solid phase change material filling; 6, roll mouth; 61, horizontal section; 62, U-shaped section; 63, inverted U part; 7, necked section; 8, elastic sealing element; 9, conical recess; 10, annular groove; 11, arc part. DETAILED DESCRIPTION

[0024] The utility model will be described in detail below in combination with the drawings and examples.

[0025] Figures 1-3 As shown in the figure, the three-layer titanium inner container cooling cup includes shell 1, intermediate layer 2 and inner container 3 arranged from outside to inside in sequence, vacuum layer 4 is formed between shell 1 and intermediate layer 2, solid phase change material filling 5 is arranged between intermediate layer 2 and inner container 3, and roll mouth 6 is formed by bending the top end of shell 1 and inner container 3.

[0026] As Figure 2 shown, shell 1 and intermediate layer 2 are both provided with necked section 7, the end of intermediate layer 2 is welded with the necked section 7 of shell 1, and solid phase change material filling 5 is filled between intermediate layer 2 and inner container 3 and covers the connection between intermediate layer 2 and shell 1, in the embodiment, first, the shell 1 and the intermediate layer 2 are necked by a spinning machine, forming necked sections 7 arranged at equal intervals, then the intermediate layer 2 is placed inside the shell 1, and the stepped section of the necked section 7 of the intermediate layer 2 and the necked section 7 of the shell 1 is welded, then the inner cavity of the shell 1 is vacuumized, so that the vacuum layer 4 is formed between the intermediate layer 2 and the shell 1, then the vacuumized state is saved, ultrasonic welding is carried out, the welding of the intermediate layer 2 and the shell 1 is realized, then the solid phase change material filling 5 is pressed and attached to the surface of the intermediate layer 2, and the inner container 3 is filled and pressed into the intermediate layer 2, ensuring that the shell 1, the intermediate layer 2 and the inner container 3 are in the same axis state.

[0027] As Figure 3Then the sealing ring is sleeved on the outer wall of the inner container 3 as the elastic sealing member 8, and the opening of the inner container 3 is formed into a U-shaped structure through secondary spinning, and the opening of the outer shell 1 is synchronously spun with the opening of the inner container 3 to form an L-shaped structure, and then the opening edge of the inner container 3 is again spun and bent to be attached to the other side of the opening of the outer shell 1, and finally, spinning and bending are performed to form the inverted U-shaped part 63 of the outer shell 1, and the inner container 3 forms the horizontal part 61 and the U-shaped part 62 wrapping the opening of the outer shell 1, and during the final spinning, the bent part of the inverted U-shaped part 63 is in contact with the part of the horizontal part 61, so that the inner container 3 is tightly connected with the outer shell 1, and the opening of the inner container 3 is wrapped around the opening of the outer shell 1 through the outward spinning of the titanium or titanium alloy, which not only improves the overall strength of the cup but also improves the antibacterial and bacteriostatic ability of the cup opening.

[0028] As shown in Figure 2 and Figure 4 , the inner container 3 and the bottom of the intermediate layer 2 are integrally formed with the arc-shaped part 11 curved towards the opening of the inner container 3, and the spacing between the arc-shaped part 11 and the outer shell 1 is greater than the average spacing between the intermediate layer 2 and the outer shell 1, so that the inner container 3 and the intermediate layer 2 can share more force during vacuumizing and phase change, and the arc-shaped structure can improve the stability of the vacuum cup structure, and can have a larger stress surface during latent heat storage and release, and the outer shell 1 is formed with the conical recess 9 at the center of the bottom and the annular groove 10 with the same center as the conical recess 9, and the annular groove 10 is used to accommodate the anti-skid ring, so that the anti-skid ring can be bonded to the bottom of the outer shell 1 through the annular groove 10 at the bottom, thereby improving the anti-skid effect of the vacuum cup.

[0029] In the embodiment, the solid phase change material filler 5 is a solid-solid composite phase change material with a model number of "ZKWGC-1036 / 1046 / 1056 / 1065" manufactured and sold by Zhesheng Optimal New Materials (Zhejiang) Co., Ltd., which is used to control the temperature of the cooling vacuum cup at 36℃, 46℃, 56℃ or 65℃, and the selection of the solid phase change material filler 5 can realize the selection of the temperature control range of the cooling vacuum cup.

[0030] The preferred embodiments of the present application are described above, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A three-layer titanium inner liner for cooling and insulation, characterized in that: The vacuum insulation container comprises an outer shell (1), an intermediate layer (2) and an inner container (3) arranged from outside to inside, a vacuum layer (4) is formed between the outer shell (1) and the intermediate layer (2), a solid phase change material filler (5) is arranged between the intermediate layer (2) and the inner container (3), and the top end of the outer shell (1) and the inner container (3) is bent to form a roll-up (6).

2. The three-layer titanium-lined cooling vacuum cup according to claim 1, characterized in that: The outer shell (1) and the intermediate layer (2) are provided with necked sections (7), the end of the intermediate layer (2) is welded to the necked section (7) of the outer shell (1), and the solid phase change material filler (5) is filled between the intermediate layer (2) and the inner container (3) and covers the connection between the intermediate layer (2) and the outer shell (1).

3. The three-layer titanium-lined cooling vacuum cup according to claim 1, characterized in that: An elastic sealing member (8) is arranged at the joint of the outer shell (1) and the inner container (3), and the elastic sealing member (8) is clamped at the position of the roll-up (6) of the inner container (3) and the outer shell (1).

4. The three-layer titanium-lined cooling vacuum cup according to claim 1, characterized in that: The roll-up (6) comprises a horizontal section (61) bent by the inner container (3), a U-shaped section (62) and an inverted U-shaped section (63) bent by the outer shell (1), the inverted U-shaped section (63) is embedded in the U-shaped section (62), and the bending section of the inverted U-shaped section (63) abuts against the inner surface of the horizontal section (61).

5. The three-layer titanium-lined cooling vacuum cup according to claim 1, characterized in that: A conical recess (9) is formed at the center of the bottom of the outer shell (1), and an annular groove (10) with the same center as the conical recess (9) is formed on the outer shell (1), and the annular groove (10) is used for accommodating an anti-skid ring.

6. The three-layer titanium-lined cooling vacuum cup according to claim 1, characterized in that: An arc-shaped section (11) is integrally formed at the bottom of the inner container (3) and the intermediate layer (2) and is bent towards the opening of the inner container (3), and the distance between the arc-shaped section (11) and the outer shell (1) is greater than the average distance between the intermediate layer (2) and the outer shell (1).

7. The three-layer titanium-lined cooling vacuum cup according to claim 1, characterized in that: The inner container (3) is integrally made of metal titanium or titanium alloy.

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