A sealing structure for a thermos cup lid

Abstract

The present application discloses a sealing structure for a thermos cup lid, relates to the field of thermos cups, and improves the problem that a plastic cup lid is easily deformed by heat. The structure comprises a stainless steel cup body, a cup mouth is fixedly connected to the top of the stainless steel cup body, a cup lid assembly is arranged on the top of the cup mouth, and a tea filter is inserted into the interior of the cup mouth; the cup lid assembly comprises a plastic cover, a steel cover is fixedly installed on the top of the plastic cover, an external thread is provided on the outer side of the plastic cover, an internal thread is provided on the interior of the cup mouth, and the plastic cover is screwed to the interior of the cup mouth through the external thread and the internal thread. The present application enables the steel cover and the plastic cover to fit tightly through interference fit between the steel cover and the plastic cover that are slightly larger in size. When in use, the plastic cover is screwed to the interior of the cup mouth through the external thread and the internal thread. When the plastic cover and the inner core come into contact with the hot water inside the stainless steel cup body, the plastic cover can be prevented from deforming after being heated through the support of the internal stainless steel lining, thereby playing a supporting role for the plastic cover.

Description

Technical Field

[0001] The utility model relates to the technical field of thermos cups, in particular to a sealing structure for a thermos cup cover. Background Art

[0002] Thermos cups, seemingly ordinary but extremely practical daily necessities, have long become an indispensable part of modern people's daily lives. In daily life, thermos cups are used in a wide range of scenarios. Whether in the office, school or outdoor travel, thermos cups can provide us with warm drinks whenever needed.

[0003] The lid of a thermos cup is generally made of food-grade plastic. The inside of the lid is in direct contact with the hot water or hot air inside the cup. When the water temperature inside the thermos cup is high, the plastic lid will generally withstand a higher temperature, which can easily cause the plastic lid to deform due to heat. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above problems existing in the prior art, the utility model provides a sealing structure for a thermos cup cover.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a sealing structure of a thermos cup lid, comprising a stainless steel cup body, a cup mouth is fixedly connected to the top of the stainless steel cup body, a cup lid assembly is arranged on the top of the cup mouth, and a tea filter is inserted into the interior of the cup mouth;

[0008] The cup cover assembly includes a plastic cover, a steel cover is fixedly installed on the top of the plastic cover, a stainless steel liner is fixedly installed inside the plastic cover, an external thread is opened on the outside of the plastic cover, an internal thread is opened inside the cup mouth, and the plastic cover is screwed to the inside of the cup mouth through the external thread and the internal thread.

[0009] As a preferred solution of the sealing structure of the thermos cup cover of the utility model, a hanging ring is fixedly installed on the outer side of the plastic cover, and the plastic cover, the hanging ring and the external thread are integrally formed by injection molding.

[0010] By adopting the above technical solution, the strength of the overall connection between the plastic cover and the hanging ring is ensured.

[0011] As a preferred solution of the sealing structure of the thermos cup cover of the utility model, the steel cover and the plastic cover are interference fit, and the steel cover and the plastic cover are bonded by glue.

[0012] By adopting the above technical solution, it is ensured that the steel cover is fixed on the outer side of the plastic cover.

[0013] As a preferred solution of the sealing structure of the thermos cup cover of the utility model, an inner core is fixedly installed on the bottom of the plastic cover, and the inner core is fixedly connected to the plastic cover through a secondary injection molding process.

[0014] By adopting the above technical solution, the stability of the connection between the inner core and the plastic cover is ensured.

[0015] As a preferred solution of the sealing structure of the thermos cup cover of the utility model, a sealing ring is sleeved on the outer side of the bottom of the plastic cover.

[0016] By adopting the above technical solution, the sealing ring is used to seal the connection between the plastic cover and the cup mouth.

[0017] As a preferred solution of the sealing structure of the thermos cup lid of the utility model, an inner ring is provided at the connection between the stainless steel cup body and the cup mouth, the stainless steel cup body, the cup mouth and the inner ring are integrally formed, and the stainless steel cup body and the cup mouth are hollow inside.

[0018] By adopting the above technical solution, the one-piece molding ensures the integrity and overall sealing of the stainless steel cup body and the inner ring of the cup mouth.

[0019] As a preferred solution of the sealing structure of the thermos cup lid of the utility model, the tea filter net passes through the inner ring, the inner ring is supported on the top outer side of the tea filter net, and the lower half of the tea filter net is located inside the stainless steel cup body.

[0020] By adopting the above technical solution, the tea filter net is supported by the inner ring.

[0021] (III) Beneficial effects

[0022] The utility model provides a sealing structure for a thermos cup cover, which has the following beneficial effects:

[0023] The slightly larger steel cover and the plastic cover have an interference fit so that the steel cover and the plastic cover can fit tightly together. When in use, the plastic cover is screwed to the inside of the cup mouth through external threads and internal threads. When the plastic cover and the inner core come into contact with the hot water inside the stainless steel cup body, the support of the internal stainless steel lining can prevent the plastic cover from deforming after being heated, thereby supporting the plastic cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0026] Figure 2 It is a three-dimensional diagram of the overall split structure of the utility model.

[0027] Figure 3 It is a three-dimensional diagram of the overall structure of the cup cover assembly of the utility model.

[0028] Figure 4 It is a cross-sectional view of the internal structure of the cup cover assembly of the utility model.

[0029] Figure 5 It is a sectional view of the overall structure of the utility model.

[0030] In the figure, 1. stainless steel cup body; 2. cup cover assembly; 21. plastic cover; 22. steel cover; 23. sealing ring; 24. hanging ring; 25. external thread; 26. inner core; 27. stainless steel lining; 3. cup mouth; 4. tea filter; 5. internal thread; 6. inner ring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Example 1

[0033] Reference Figure 1-Figure 5 , which is the first embodiment of the utility model, and provides a sealing structure for a thermos cup cover, comprising a stainless steel cup body 1, a cup mouth 3 is fixedly connected to the top of the stainless steel cup body 1, a cup cover assembly 2 is arranged on the top of the cup mouth 3, and a tea filter 4 is inserted into the interior of the cup mouth 3;

[0034] The cup cover assembly 2 includes a plastic cover 21, a steel cover 22 is fixedly installed on the top of the plastic cover 21, a stainless steel lining 27 is fixedly installed inside the plastic cover 21, an external thread 25 is provided on the outside of the plastic cover 21, and an internal thread 5 is provided inside the cup mouth 3. The plastic cover 21 is screwed to the inside of the cup mouth 3 through the external thread 25 and the internal thread 5.

[0035] Specifically, a hanging ring 24 is fixedly installed on the outer side of the plastic cover 21, and the plastic cover 21, the hanging ring 24 and the external thread 25 are integrally formed by injection molding. The steel cover 22 and the plastic cover 21 are interference fit, and the steel cover 22 and the plastic cover 21 are bonded by glue. An inner core 26 is fixedly installed on the bottom of the plastic cover 21, and the inner core 26 is fixedly connected to the plastic cover 21 by a secondary injection molding process. A sealing ring 23 is sleeved on the outer side of the bottom of the plastic cover 21.

[0036] Furthermore, interference fit refers to a special fitting mode between two parts, in which the size of one part has sufficient margin relative to the other part, so that the two parts will produce slight compression and movement when fitting, and finally achieve a tight fit effect. The slightly larger steel cover 22 and the plastic cover 21 can be tightly fitted through interference fit. When in use, the plastic cover 21 is screwed to the inside of the cup mouth 3 through the external thread 25 and the internal thread 5. When the plastic cover 21 and the inner core 26 contact the hot water inside the stainless steel cup body 1, the support of the internal stainless steel lining 27 can prevent the plastic cover 21 from being deformed after being heated, thereby supporting the plastic cover 21; the hanging ring 24 can be used to hang a lanyard or a hanging buckle, so as to facilitate the overall carrying.

[0037] Example 2

[0038] Reference Figure 1-Figure 5 , which is the second embodiment of the utility model. This embodiment is based on the previous embodiment. An inner ring 6 is provided at the connection between the stainless steel cup body 1 and the cup mouth 3. The stainless steel cup body 1, the cup mouth 3 and the inner ring 6 are integrally formed, and the stainless steel cup body 1 and the cup mouth 3 are hollow inside.

[0039] Specifically, the tea filter net 4 passes through the inner ring 6 , the inner ring 6 is supported on the top outer side of the tea filter net 4 , and the lower half of the tea filter net 4 is located inside the stainless steel cup body 1 .

[0040] Furthermore, tea and water can be separated by the tea filter 4. When installing the tea filter 4, the tea filter 4 is inserted into the connection between the cup mouth 3 and the stainless steel cup body 1, and the tea filter 4 is supported and limited by the internal inner ring 6, so that the tea filter 4 can be effectively supported and placed.

[0041] Working principle: The slightly larger steel cover 22 and the plastic cover 21 can be tightly fitted together through interference fit. When in use, the plastic cover 21 is screwed to the inside of the cup mouth 3 through the external thread 25 and the internal thread 5. When the plastic cover 21 and the inner core 26 come into contact with the hot water inside the stainless steel cup body 1, the support of the internal stainless steel lining 27 can prevent the plastic cover 21 from being deformed after being heated, thereby supporting the plastic cover 21; the hanging ring 24 can be used to hang a hanging rope or a hanging buckle, so as to facilitate the overall carrying. The tea filter net 4 can be used to separate tea and water. When installing the tea filter net 4, the tea filter net 4 is inserted into the connection between the cup mouth 3 and the stainless steel cup body 1, and the tea filter net 4 is supported and limited by the internal inner ring 6, so that the tea filter net 4 can be effectively supported and placed.

[0042] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A sealing structure for a thermos cup lid, comprising a stainless steel cup body (1), characterized in that: The top of the stainless steel cup body (1) is fixedly connected with a cup mouth (3), the top of the cup mouth (3) is provided with a cup cover assembly (2), and the interior of the cup mouth (3) is plugged with a tea filter (4); The cup cover assembly (2) comprises a plastic cover (21), a steel cover (22) is fixedly mounted on the top of the plastic cover (21), a stainless steel lining (27) is fixedly mounted inside the plastic cover (21), an external thread (25) is provided on the outside of the plastic cover (21), an internal thread (5) is provided inside the cup mouth (3), and the plastic cover (21) is screwed to the inside of the cup mouth (3) via the external thread (25) and the internal thread (5).

2. The sealing structure of a thermos cup lid according to claim 1, characterized in that: A hanging ring (24) is fixedly mounted on the outer side of the plastic cover (21), and the plastic cover (21), the hanging ring (24) and the external thread (25) are integrally formed by injection molding.

3. The sealing structure of a thermos cup lid according to claim 1, characterized in that: The steel cover (22) and the plastic cover (21) are interference fit, and the steel cover (22) and the plastic cover (21) are bonded by glue.

4. The sealing structure of a thermos cup lid according to claim 1, characterized in that: An inner core (26) is fixedly mounted on the bottom of the plastic cover (21), and the inner core (26) is fixedly connected to the plastic cover (21) through a secondary injection molding process.

5. The sealing structure of a thermos cup lid according to claim 1, characterized in that: A sealing ring (23) is sleeved on the outer side of the bottom of the plastic cover (21).

6. The sealing structure of a thermos cup lid according to claim 1, characterized in that: An inner ring (6) is provided at the connection between the stainless steel cup body (1) and the cup mouth (3); the stainless steel cup body (1), the cup mouth (3) and the inner ring (6) are integrally formed; and the stainless steel cup body (1) and the cup mouth (3) are hollow inside.

7. The sealing structure of the thermos cup cover according to claim 6, characterized in that: The tea filter net (4) passes through the inner ring (6), and the inner ring (6) is supported on the outer side of the top of the tea filter net (4). The lower half of the tea filter net (4) is located inside the stainless steel cup body (1).

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