Vacuum cup with detachable inner container

Abstract

The vacuum cup with the detachable inner container comprises a top cover, the porcelain inner container and a barrel-shaped shell, the porcelain inner container is detachably installed in the shell in an embedded mode, and a top end opening of the porcelain inner container is sealed by the top cover in a sealed mode. An annular cup bottom bearing ring used for bearing, positioning and fixing the bottom end of the porcelain inner container is installed at the bottom end of the inner cavity of the shell. An annular port silica gel locking ring which is used for circumferential embedding and is used for limiting and fixing the upper end of the porcelain liner is arranged in an internal thread at the opening of the top of the shell, and a step surface which is nested and matched with the inner side surface of the port silica gel locking ring is arranged at the upper end of the corresponding porcelain liner along the axial direction; a plastic cover core which is in threaded connection with the opening in the end part of the porcelain inner container and is used for sealing the top end of the porcelain inner container is also nested in the top cover; the whole installation and connection structure is simple and reliable, installation is convenient, the inner container is convenient to disassemble, replace and clean, and use of a user is effectively facilitated.

Description

[Technical Field]

[0001] This utility model relates to drinking water appliances, and more specifically, to a thermos cup with a detachable inner liner. [Background Technology]

[0002] Existing thermos flasks typically have an inner liner made of ceramic or stainless steel with a vacuum layer. This inner liner helps to slow down changes in liquid temperature, thus achieving the purpose of heat preservation. However, the heat preservation effect of the inner liner decreases over time. Most thermos flasks have non-removable inner liners, making it difficult to thoroughly clean the inside, especially in the crevices and corners, where bacteria can easily grow, affecting safety. Furthermore, when problems arise with the inner liner, its non-removability makes repair difficult. [Utility Model Content]

[0003] This invention provides a thermos cup with a detachable inner liner, which is easy to clean and maintain, convenient for users, and effectively improves safety during use.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A thermos cup with a detachable inner liner includes a top cover, a ceramic inner liner, and a barrel-shaped outer shell. The ceramic inner liner is detachably nested in the outer shell, and its top opening is sealed by the top cover.

[0006] A ring-shaped cup bottom support ring is installed at the bottom of the inner cavity of the outer shell to support and position the bottom of the ceramic inner liner.

[0007] The top opening of the outer shell has an internal thread with a ring-shaped silicone locking ring for circumferential fitting to limit and fix the upper end of the ceramic inner liner. Correspondingly, the upper end of the ceramic inner liner is provided with a stepped surface along the axial direction that nests and cooperates with the inner side of the silicone locking ring.

[0008] The top cover also contains a plastic cap core that is internally threaded to the open end of the ceramic inner liner and is used to seal the top of the ceramic inner liner.

[0009] Preferably, the top cover is made of steel in one piece.

[0010] Preferably, the outer shell is made of stainless steel in one piece and has an internal thread at the top opening that connects with the threaded outer wall of the silicone locking ring at the port.

[0011] Preferably, the cup bottom support ring is made of one-piece plastic material, and the bottom surface of the cup bottom support ring is provided with a plurality of positioning grooves that are uniformly recessed along the circumference and respectively engage with the bottom end of the inner cavity of the outer shell.

[0012] Preferably, the upper surface of the cup bottom support ring is provided with a plurality of conical grooves that are uniformly recessed along the circumference and engage with and limit the positioning blocks of the outer edge of the ceramic inner liner.

[0013] The beneficial effects of this utility model are:

[0014] During assembly, the bottom of the ceramic inner liner and the bottom of the inner cavity of the outer shell adopt an insert structure that facilitates nesting and mating, while the top of the ceramic inner liner and the open part of the outer shell adopt a threaded locking structure that facilitates disassembly. The connection structure is simple and reliable, which not only facilitates installation, but also facilitates disassembly and replacement of the inner liner and cleaning of the inner liner, effectively making it convenient for users. [Attached Image Description]

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, this utility model will be described in detail below with reference to the specific implementation and accompanying drawings.

[0016] Figure 1 This is an exploded structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the present invention.

Detailed Implementation Methods

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0020] A type of thermos with a removable inner liner, such as Figures 1 to 3 As shown, the device includes a top cover 1, a ceramic inner liner 2, and a cylindrical outer shell 3. The ceramic inner liner 2 is detachably nested in the outer shell 3, and its top opening is sealed by the top cover 1. A T-shaped plastic cap core 4 is nested inside the top cover 1, which is internally threaded to the end opening of the ceramic inner liner 2 and is used to seal the top of the ceramic inner liner 2. A ring-shaped cup bottom support ring 5 is installed at the bottom of the inner cavity of the outer shell 3 to support and position the bottom of the ceramic inner liner 2. A ring-shaped silicone locking ring 6 is internally threaded at the top opening of the outer shell 3 to circumferentially fit and limit the upper end of the ceramic inner liner 2. A stepped surface 20 is provided axially at the upper end of the corresponding ceramic inner liner 2, which nests and cooperates with the inner side of the silicone locking ring 6.

[0021] like Figure 1 and Figure 2As shown, the top cover 1 is made of steel in one piece, and the outer shell 3 is made of stainless steel in one piece. It has an internal thread at the top opening that connects to the outer wall thread of the silicone locking ring 6. The cup bottom support ring 5 is made of plastic in one piece. Two positioning grooves 7 are evenly recessed circumferentially on the bottom surface of the cup bottom support ring 5, each engaging with the bottom of the inner cavity of the outer shell 3. Two conical grooves 9 are evenly recessed circumferentially on the upper surface of the cup bottom support ring 5, each engaging with and limiting the positioning blocks 8 on the outer periphery of the ceramic inner liner 2.

[0022] During use, the insertion structure between the bottom of the ceramic inner liner 2 and the bottom of the inner cavity of the outer shell 3 effectively limits the circumferential rotation between the two. Then, the threaded locking structure between the top of the ceramic inner liner 2 and the opening of the outer shell 3 effectively achieves a locking connection at the port. This not only facilitates installation, but also makes it easy to disassemble and replace the inner liner and clean it. It also facilitates the inspection of the inner liner and external parts of the thermos cup, allowing for timely handling of any potential problems and making it convenient for users.

[0023] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. All equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A thermos cup with a detachable inner liner, characterized in that, It includes a top cover, a ceramic inner liner, and a barrel-shaped outer shell, wherein the ceramic inner liner is detachably nested within the outer shell, and the top opening is sealed by the top cover; A ring-shaped cup bottom support ring is installed at the bottom of the inner cavity of the outer shell to support and position the bottom of the ceramic inner liner. The top opening of the outer shell has an internal thread with a ring-shaped silicone locking ring for circumferential fitting to limit and fix the upper end of the ceramic inner liner. Correspondingly, the upper end of the ceramic inner liner is provided with a stepped surface along the axial direction that nests and cooperates with the inner side of the silicone locking ring. The top cover also contains a plastic cap core that is internally threaded to the open end of the ceramic inner liner and is used to seal the top of the ceramic inner liner.

2. The thermos cup with a detachable inner liner according to claim 1, characterized in that, The top cover is made of one-piece steel.

3. A thermos with a detachable inner liner according to claim 1, characterized in that, The outer shell is made of stainless steel in one piece, and has an internal thread at the top opening that connects with the outer thread of the silicone locking ring at the port.

4. A thermos cup with a detachable inner liner according to claim 1, characterized in that, The cup bottom support ring is made of one-piece plastic material, and the bottom surface of the cup bottom support ring is provided with multiple positioning grooves that are evenly recessed along the circumference and respectively engage with the bottom end of the inner cavity of the outer shell.

5. A thermos cup with a detachable inner liner according to claim 2, characterized in that, The upper surface of the cup bottom support ring is uniformly recessed circumferentially with multiple conical grooves that engage and limit the positioning blocks on the outer circumferential edge of the ceramic inner liner.

Images