A pure silver inner container for a vacuum cup

Abstract

This utility model relates to the field of thermos cup technology, and in particular discloses a pure silver inner liner for thermos cups, including a straight cylindrical lower body. A base is formed at the bottom of the lower body, and the base has an inwardly embossed pattern protruding into the inner liner. An upper cylindrical body, wider at the top and narrower at the bottom, is formed at the upper end of the lower body. The upper end of the upper cylindrical body is bent outward to form a folded portion, and the end of the folded portion folds back into the upper cylindrical body to form an outer attachment portion. The upper end of the metal inner liner of the thermos cup is sandwiched between the outer attachment portion and the upper cylindrical body. A covering portion is formed on the outer wall of the outer attachment portion, which is tightly fitted and fixed to the groove of the outer wall of the metal support. The beneficial effects are: processing the inwardly embossed pattern at the bottom of the silver inner liner can improve the bottom strength of the silver inner liner, preventing it from shrinking and deforming after heating; forming the upper cylindrical body at the top of the lower body and ensuring that the height of the upper cylindrical body is greater than that of the lower cylindrical body, utilizing the conical structure, improves the overall structural strength and prevents shrinkage and deformation during use.

Description

Technical Field

[0001] This utility model relates to the field of thermos cup technology, and in particular to a pure silver inner liner for thermos cups. Background Technology

[0002] Currently, there are a large number of silver thermos cups on the market, which mainly have a three-layer structure: inner liner, metal support, and outer shell. The inner liner is made of pure silver and is formed by one-time stamping and stretching, and is cylindrical. The inner liner of this structure is weak. When hot water is added to the thermos cup, the silver inner liner is prone to deformation and shrinkage, which affects the quality of the cup. Utility Model Content

[0003] This utility model is designed to solve the above-mentioned problems by providing a pure silver inner liner for thermos cups.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A sterling silver inner liner for a thermos includes a straight lower cylinder with a base formed at the bottom. The base has an inwardly embossed pattern protruding into the inner liner. The upper part of the lower cylinder has a tapered upper cylinder that is wider at the top and narrower at the bottom. The lower and upper cylinders are connected as one unit by an inwardly convex arc-shaped connecting part. The upper end of the upper cylinder is bent outward to form a folded part. The end of the folded part is folded towards the upper cylinder to form an outer attachment. The upper end of the metal inner liner of the thermos is sandwiched between the outer attachment and the upper cylinder. The outer wall of the outer attachment has a covering part that fits tightly with the groove of the outer wall of the metal support.

[0006] Furthermore, the height of the inner embossed protruding base is 0.5-1mm.

[0007] Furthermore, the height of the upper cylinder is greater than the height of the lower cylinder.

[0008] Furthermore, the upper diameter of the upper cylinder is 1-3 mm larger than the lower diameter.

[0009] Furthermore, a platform step is formed at the upper end of the upper cylinder near the bottle mouth, and the platform step is 5-10mm away from the bottle mouth.

[0010] The beneficial effects of this utility model by adopting the above technical solution are as follows: the bottom strength of the silver inner liner can be improved by processing the inner convex embossing, thus preventing the silver inner liner from shrinking and deforming after being heated; the overall structural strength is improved by forming an upper cylinder at the upper end of the lower cylinder and ensuring that the height of the upper cylinder is greater than that of the lower cylinder, thus preventing shrinkage and deformation during use; the bottle mouth of the silver inner liner is fastened to the metal support by the external attachment and covering parts, and the metal support is used to support the silver inner liner, thus ensuring the quality of the silver inner liner thermos. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is an axonometric sectional view of the present invention;

[0013] Figure 2 This is a perspective view of the present invention;

[0014] Figure 3 This is the front view of this utility model;

[0015] Figure 4 This is a main sectional view of the present invention;

[0016] Figure 5 This is a partially enlarged schematic diagram of the present invention.

[0017] The annotations in the attached figures are explained as follows:

[0018] 1. Lower cylinder; 2. Upper cylinder; 3. Connecting part; 4. Inner embossed pattern; 5. Platform step; 6. Folding part; 7. Outer attachment part; 8. Covering part; 9. Metal support. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-5As shown, a pure silver inner liner for a thermos includes a straight lower cylinder 1. A base is formed at the bottom of the lower cylinder 1, and an inwardly raised embossed pattern 4 is formed on the base, protruding into the inner liner. The embossed pattern 4 is formed by molding, and its shape can be a standard geometric shape or a special pattern, such as a peony flower print. This not only enhances the aesthetics of the silver inner liner but also improves its strength, preventing it from shrinking and deforming due to heat during use. An upper cylinder 2, which is wider at the top and narrower at the bottom, is formed at the top of the lower cylinder 1. The conical structure is stronger than the straight cylinder structure, less prone to deformation, and facilitates rapid outflow of liquid. The lower cylinder 1 and the upper cylinder 2 are connected by the inwardly raised embossed pattern. The arc-shaped connecting part 3 is connected as one piece. The inwardly protruding connecting part 3 can reduce the internal liquid residue. The upper end of the upper cylinder 2 is bent outward to form a folded part 6. The end of the folded part 6 is folded upward to form an outer attachment part 7. The upper end of the metal inner liner of the thermos is sandwiched between the outer attachment part 7 and the upper cylinder 2. The outer wall of the outer attachment part 7 is formed with a covering part 8 that fits tightly with the groove on the outer wall of the metal support 9. The metal support 9 can be a straight cylinder to support the mouth of the silver inner liner or the inner wall can be consistent with the outer wall of the silver inner liner so that it fits seamlessly with the silver inner liner. The covering part 8 is attached to the outer wall of the metal support 9 to prevent the silver inner liner from loosening. The metal support 9 can be used to support the silver inner liner and improve its strength.

[0021] In this embodiment, the height of the embossed 4 protruding from the base is 0.5-1mm. This ensures the strength of the silver inner liner while preventing damage during the pressing of the embossed area and reducing the defect rate.

[0022] In this embodiment, the height of the upper cylinder 2 is higher than the height of the lower cylinder 1. Reducing the height of the lower cylinder 1 of the straight cylinder can improve the strength of the silver inner liner.

[0023] In this embodiment, the upper diameter of the upper cylinder 2 is 1-3 mm larger than the lower diameter, which facilitates demolding during stamping.

[0024] In this embodiment, a platform step 5 is formed at the upper end of the upper cylinder 2 near the bottle mouth. The platform step 5 is 5-10mm away from the bottle mouth, and a tea comb can be installed at the platform step 5.

[0025] The working principle of this utility model is as follows: When assembling the thermos cup, after the silver inner liner is stamped, the upper end of the metal support 9 is inserted between the outer attachment 7 and the upper cylinder 2, so that its top abuts against the inner wall of the folded part 6. Then, the edge of the outer attachment 7 is rolled to fit tightly against the metal support 9 to form the covering part 8, so that the silver inner liner and the metal support 9 are combined into one body. Then, the outer cylinder is fixed to the outside of the metal support 9.

[0026] Components not described in detail in this article are existing technologies.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pure silver inner liner for a thermos, characterized in that: The device includes a straight cylindrical lower body (1), with a base formed at the bottom of the lower body (1) and an inwardly embossed pattern (4) protruding into the inner liner formed on the base. The upper end of the lower body (1) is formed with a conical upper body (2) that is larger at the top and smaller at the bottom. The lower body (1) and the upper body (2) are connected as one unit by an inwardly convex arc-shaped connecting part (3). The upper end of the upper body (2) is bent outward to form a folded part (6). The end of the folded part (6) is folded towards the upper body (2) to form an outer attachment part (7). The upper end of the metal inner liner of the thermos cup is sandwiched between the outer attachment part (7) and the upper body (2). The outer wall of the outer attachment part (7) is formed with a covering part (8) that is tightly fitted and fixed to the groove on the outer wall of the metal support (9).

2. The pure silver inner liner for a thermos cup according to claim 1, characterized in that: The height of the inner embossed pattern (4) protruding from the base is 0.5-1mm.

3. The pure silver inner liner for a thermos cup according to claim 1, characterized in that: The height of the upper cylinder (2) is higher than the height of the lower cylinder (1).

4. The pure silver inner liner for a thermos cup according to claim 1, characterized in that: The upper diameter of the upper cylinder (2) is 1-3 mm larger than the lower diameter.

5. The pure silver inner liner for a thermos cup according to claim 1, characterized in that: The upper cylinder (2) has a platform step (5) formed at the upper end near the bottle mouth, and the platform step (5) is 5-10mm away from the bottle mouth.

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