Heat preservation water cup with stainless steel shell and glass inner container

By combining a glass inner liner with a stainless steel outer shell, the problem of harmful substances being released from stainless steel thermos cups is solved, resulting in a safe, heat-insulating, and impact-resistant water cup design that is easy to clean and aesthetically pleasing.

CN223968952UActive Publication Date: 2026-03-06JIANGSU XINUO INDAL
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Patent Information

Application Number
CN202520903673.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-03-06
Estimated Expiration
2035-05-08

AI Technical Summary

Technical Problem

Existing stainless steel thermos cups are prone to producing harmful substances after processing, and may rust or have their coatings peel off, affecting food safety.

Method used

It adopts a combination structure of glass inner tank and stainless steel outer shell. Through the design of silicone positioning ring and sealing plate, the stainless steel outer shell is prevented from direct contact with water source. The heat insulation and impact resistance of stainless steel outer shell are combined with the cushioning and heat insulation effect of silicone pad to improve stability and safety.

Benefits of technology

It reduces the impact of harmful substances on the body, improves drinking safety, enhances the heat retention and impact resistance of the water cup, and is also easy to clean and aesthetically pleasing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water cups, in particular to a heat preservation water cup with a stainless steel shell and a glass inner container, which comprises the glass inner container, the stainless steel shell, a sealing plate and a cup cover, the top end and the bottom end of the stainless steel shell are open, the stainless steel shell is sleeved outside the glass inner container, and a limit ring is integrally arranged at the top end of the glass inner container. The limiting ring abuts against the top end of the stainless steel shell, and the sealing plate is fixedly arranged at the bottom end of the stainless steel shell. A silica gel positioning ring is arranged between the stainless steel shell and the glass inner container, a positioning groove for the silica gel positioning ring to be inserted is formed in the outer wall of the glass inner container, and the silica gel positioning ring and the positioning groove are arranged in an interference mode. And the cup cover is detachably connected with the stainless steel shell. The preparation method has the effects that the influence of harmful substances on the body is reduced, toxic components cannot be released due to high temperature or friction after long-term use, the problem of coating scratching or corrosion does not need to be worried about, and the drinking safety is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of water cups, and in particular to a stainless steel outer shell and glass inner liner insulated water cup. Background Technology

[0002] A thermos is a water container used to keep water warm. There are many types of thermos materials. Stainless steel thermos is made of double-layered stainless steel, with the inner liner and outer shell joined together using welding technology. Then, vacuum technology is used to remove the air from the space between the inner liner and the outer shell to achieve a vacuum insulation effect.

[0003] The stainless steel thermos cups designed in the relevant technologies use stainless steel inner liner. However, stainless steel materials are prone to producing substances harmful to the human body after processing (such as electrolysis, coating, or materials with excessive heavy metals). After long-term use, they are prone to rusting or coating peeling, posing certain food safety risks. Therefore, improvements are needed. Utility Model Content

[0004] To reduce the impact of harmful substances on the body, ensure that long-term use will not release toxic components due to high temperatures or friction, eliminate concerns about scratches or corrosion of the coating, and improve drinking safety, this application provides a stainless steel outer shell and glass inner liner insulated water cup.

[0005] The stainless steel outer shell and glass inner liner insulated water cup provided in this application adopts the following technical solution:

[0006] A stainless steel outer shell and glass inner liner insulated water cup includes a glass inner liner, a stainless steel outer shell, a sealing plate, and a lid. The stainless steel outer shell has openings at its top and bottom, and is fitted over the glass inner liner. A limiting ring is integrally formed at the top of the glass inner liner, and the limiting ring abuts against the top of the stainless steel outer shell. The sealing plate is fixedly set at the bottom of the stainless steel outer shell. A silicone positioning ring is provided between the stainless steel outer shell and the glass inner liner. A positioning groove is formed on the outer wall of the glass inner liner for the silicone positioning ring to be inserted, and the silicone positioning ring is interference-fitted into the positioning groove. The lid is detachably connected to the stainless steel outer shell.

[0007] By adopting the above technical solution, when assembling the water cup, the glass inner liner is inserted into the stainless steel outer shell from above until the limiting ring abuts against the top of the stainless steel outer shell, thus limiting the glass inner liner. At this time, the silicone positioning ring is inserted into the positioning groove, positioning the stainless steel outer shell. Due to the certain toughness of the stainless steel outer shell, after the stainless steel outer shell is fitted onto the glass inner liner, the surface of the stainless steel outer shell abuts against the surface of the glass inner liner, and the silicone positioning ring is interference-fitted into the positioning groove. Finally, the sealing plate is fixed to the bottom of the stainless steel outer shell. The sealing block can support and limit the glass inner liner from below, thereby completing the assembly and fixation between the glass inner liner, the stainless steel outer shell, and the sealing plate, which is convenient to assemble. Using a glass inner liner can avoid direct contact between the stainless steel outer shell and the water source inside the cup, reducing the impact of harmful substances on the body. Long-term use will not release toxic components due to high temperature or friction. At the same time, bacteria are not easily grown on the glass surface, and it can be cleaned directly with a hard brush or by high-temperature steaming without worrying about scratching the coating or corrosion. Using a stainless steel outer shell can provide some insulation, and its strong impact resistance can protect the glass inner liner, making the cup less prone to damage. In addition, the smooth surface of the stainless steel outer shell is not easy to leave stains and is easy to clean.

[0008] Preferably, the bottom wall of the cup lid is provided with a connecting groove for inserting the glass inner liner and the stainless steel outer shell. The inner wall of the connecting groove is provided with an internal thread, which is integrally formed with the cup lid. The outer wall of the stainless steel outer shell is integrally provided with an external thread, and the external thread and the internal thread are threadedly connected.

[0009] By adopting the above technical solution, when it is necessary to use the cup lid to seal the water source inside the glass liner, the glass liner and the stainless steel outer shell are inserted into the connecting groove. The cup lid can be quickly fixed at the mouth of the cup by using the threaded connection between the external and internal threads, which makes it convenient to assemble and disassemble the cup lid and the stainless steel outer shell.

[0010] Preferably, a sealing ring is fixedly provided on the bottom wall of the connecting groove, and the limiting ring abuts against the sealing ring.

[0011] By adopting the above technical solution, when rotating and assembling the cup lid, the sealing ring and the limiting ring abut against each other, and the sealing ring can improve the sealing performance between the cup lid and the glass liner.

[0012] Preferably, the top of the cup lid is provided with a filling groove, the filling groove is filled with heat-insulating foam, and a decorative plate is fixedly provided on the cup lid, the decorative plate sealing the filling groove.

[0013] By adopting the above technical solution, filling the filling groove inside the cup lid with heat-insulating foam can give the cup lid a good heat insulation effect, reduce the heat loss from the opening of the glass liner, improve the heat preservation performance of the cup, and at the same time avoid the phenomenon of being burned by the cup lid when rotating the cup lid. The decorative panel isolates the heat-insulating foam and improves the aesthetics.

[0014] Preferably, a silicone pad is provided inside the stainless steel outer shell, and a buffer groove is formed on the surface of the silicone pad for inserting the glass inner liner. The glass inner liner abuts against the inner wall of the buffer groove, and a guide surface is provided at an angle at the top of the inner wall of the buffer groove.

[0015] By adopting the above technical solution, when the glass inner liner is inserted into the stainless steel outer shell, the guide surface guides the glass inner liner and inserts it into the buffer groove. The silicone pad is interference-fitted between the stainless steel outer shell and the inner liner. On the one hand, it can improve the overall stability of the water cup. When the water cup is impacted, the silicone pad can play a certain cushioning role, reducing the damage to the water cup and improving the impact resistance of the water cup. On the other hand, the silicone pad can play a certain heat insulation and heat preservation effect.

[0016] Preferably, the sealing plate is integrally provided with a bent portion, which is fitted and fixed to the inner wall of the stainless steel shell, and an anti-slip pad is provided between the bent portions, which is fixed to the sealing plate.

[0017] By adopting the above technical solution, the bending part increases the contact area between the sealing plate and the stainless steel shell, which is beneficial to improving the stability of the sealing plate. The anti-slip pad is bonded between the bending parts, which can enhance the anti-slip effect of the water cup and improve the stability of the water cup when placed.

[0018] Preferably, the stainless steel outer shell is a single layer.

[0019] By adopting the above technical solution, the stainless steel shell adopts a single-layer structure, which is convenient for production and helps to save costs.

[0020] Preferably, the stainless steel outer shell is double-layered.

[0021] By adopting the above technical solution, the stainless steel shell adopts a double-layer structure, and a vacuum can be drawn inside the stainless steel shell, which helps to enhance the heat insulation performance of the stainless steel shell.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By incorporating a glass inner liner, stainless steel outer shell, sealing plate, lid, silicone positioning ring, and positioning groove, the glass inner liner prevents direct contact between the stainless steel outer shell and the water inside, reducing the impact of harmful substances on the body. Long-term use will not release toxic components due to high temperatures or friction. Furthermore, the glass surface is less prone to bacterial growth and can be cleaned directly with a stiff brush or by high-temperature steaming without worrying about scratching the coating or corrosion. The stainless steel outer shell provides some insulation and is highly impact-resistant, protecting the glass inner liner and preventing damage to the cup. Its smooth surface also makes it easy to clean and prevents stains from remaining.

[0024] 2. By incorporating a silicone pad, a buffer groove, and a guide surface, the glass inner liner is inserted into the buffer groove when it is inserted into the stainless steel outer shell. The silicone pad is interference-fitted between the stainless steel outer shell and the inner liner. This design improves the overall stability of the cup, providing cushioning against impacts and reducing the risk of damage. Furthermore, the silicone pad also provides some heat insulation.

[0025] 3. By adopting a single-layer structure for the stainless steel outer shell, production is convenient and costs are saved. A double-layer structure for the stainless steel outer shell allows for vacuuming inside, which enhances the heat insulation performance of the stainless steel outer shell. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a stainless steel outer shell and glass inner liner insulated water cup provided in an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the structure of a stainless steel outer shell and glass inner liner insulated water cup provided in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Glass inner liner; 11. Limiting ring; 12. Positioning groove; 2. Stainless steel outer shell; 21. External thread; 3. Sealing plate; 31. Bending part; 32. Anti-slip pad; 4. Cup lid; 5. Silicone positioning ring; 6. Connecting groove; 61. Internal thread; 7. Sealing ring; 8. Filling groove; 81. Thermal insulation foam; 82. Decorative plate; 9. Silicone pad; 91. Buffer groove; 92. Guide surface. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses a stainless steel outer shell and glass inner liner insulated water cup. (See also...) Figure 1 and Figure 2It includes a glass inner liner 1, a stainless steel outer shell 2, a sealing plate 3, and a lid 4. The stainless steel outer shell 2 has openings at both the top and bottom, and is fitted over the glass inner liner 1. The stainless steel outer shell 2 is made of stainless steel. The glass inner liner 1 has an opening at the top and a closed bottom, and is made of glass. The stainless steel outer shell 2 can be a single-layer structure for ease of production and cost savings, or it can be a double-layer structure, allowing for internal vacuuming and enhancing its heat insulation performance. The lid 4 is located at the top of the stainless steel outer shell 2 and seals the glass inner liner 1.

[0031] Reference Figure 2 A limiting ring 11 is integrally provided at the top of the glass inner liner 1, and the limiting ring 11 is arranged along the circumference of the glass inner liner 1. The sealing plate 3 is bonded and fixedly provided at the bottom of the stainless steel outer shell 2, and the sealing plate 3 can seal the bottom of the stainless steel outer shell 2. A silicone positioning ring 5 is provided between the stainless steel outer shell 2 and the glass inner liner 1. The silicone positioning ring 5 is arranged in a ring shape. A positioning groove 12 is opened on the outer wall of the glass inner liner 1 for the silicone positioning ring 5 to be inserted. The silicone positioning ring 5 and the positioning groove 12 are interference fit, and the silicone positioning ring 5 is bonded and fixed to the inner wall of the positioning groove 12. When assembling the water cup, insert the glass inner liner 1 into the stainless steel outer shell 2 from above until the limiting ring 11 abuts against the top of the stainless steel outer shell 2, thus limiting the glass inner liner 1. At this time, the silicone positioning ring 5 is inserted into the positioning groove 12, positioning the stainless steel outer shell 2. Due to the certain toughness of the stainless steel outer shell 2, after the stainless steel outer shell 2 is fitted onto the glass inner liner 1, the surface of the stainless steel outer shell 2 abuts against the surface of the glass inner liner 1, and the silicone positioning ring 5 is interference-fitted into the positioning groove 12. Finally, fix the sealing plate 3 to the bottom end of the stainless steel outer shell 2. The sealing plate can support and limit the glass inner liner 1 from below, thus completing the assembly and fixation between the glass inner liner 1, the stainless steel outer shell 2, and the sealing plate 3. The assembly is convenient.

[0032] Reference Figure 2 The bottom wall of the cup lid 4 has a connecting groove 6 for inserting the glass inner liner 1 and the stainless steel outer shell 2. The connecting groove 6, the cup lid 4, the glass inner liner 1, and the stainless steel outer shell 2 are coaxially arranged. The inner wall of the connecting groove 6 has an internal thread 61, which is integrally formed with the cup lid 4. The outer wall of the stainless steel outer shell 2 has an external thread 21. When the cup lid 4 is needed to seal the water source in the glass inner liner 1, the glass inner liner 1 and the stainless steel outer shell 2 are inserted into the connecting groove 6, and the external thread 21 and the internal thread 61 are threaded together. The cup lid 4 can be quickly fixed at the mouth of the cup, making it easy to assemble and disassemble the cup lid 4 and the stainless steel outer shell 2. A sealing ring 7 is bonded and fixed on the bottom wall of the connecting groove 6. When the cup lid 4 is rotated and assembled, the sealing ring 7 abuts against the limiting ring 11, which can improve the sealing performance between the cup lid 4 and the glass inner liner 1.

[0033] Reference Figure 2 The top of the cup lid 4 is provided with a filling groove 8, which is filled with heat-insulating foam 81. A decorative plate 82 is welded and fixed on the cup lid 4. The heat-insulating foam 81 in the filling groove 8 inside the cup lid 4 can give the cup lid 4 a good heat insulation effect, reduce the heat loss from the opening of the glass inner liner 1, improve the heat preservation performance of the cup, and at the same time avoid the phenomenon of being burned by the cup lid 4 when rotating the cup lid 4. The decorative plate 82 isolates and seals the heat-insulating foam 81, and at the same time improves the aesthetics.

[0034] Reference Figure 2 A silicone pad 9 is installed inside the stainless steel outer shell 2. The surface of the silicone pad 9 has a buffer groove 91 for inserting the glass inner liner 1. The inner wall of the buffer groove 91 and the top of it are inclined with a guide surface 92. When the glass inner liner 1 is inserted into the stainless steel outer shell 2, the guide surface 92 guides the glass inner liner 1 and inserts it into the buffer groove 91. The glass inner liner 1 abuts against the inner wall of the buffer groove 91. The silicone pad 9 is interference fit between the stainless steel outer shell 2 and the inner liner. On the one hand, it can improve the overall stability of the cup. When the cup is impacted, the silicone pad 9 can play a certain cushioning role, reduce the damage to the cup, and improve the impact resistance of the cup. On the other hand, the silicone pad 9 can also play a certain heat insulation and heat preservation role.

[0035] Reference Figure 2 A bent portion 31 is integrally provided on the end wall of the sealing plate 3. The bent portion 31 is arranged along the circumference of the sealing plate 3. The bent portion 31 is in close contact with the inner wall of the stainless steel shell 2 and is fixed by adhesive. An anti-slip pad 32 is provided between the bent portions 31. The anti-slip pad 32 is bonded to the sealing plate 3. The bent portion 31 increases the contact area between the sealing plate 3 and the stainless steel shell 2, which is beneficial to improving the stability of the sealing plate 3. The anti-slip pad 32 bonded between the bent portions 31 can enhance the anti-slip effect of the water cup and improve the stability of the water cup when placed.

[0036] The implementation principle of the stainless steel outer shell and glass inner liner insulated water cup in this application embodiment is as follows: Using a glass inner liner 1 avoids direct contact between the stainless steel outer shell 2 and the water inside the cup, reducing the impact of harmful substances on the body. Long-term use will not release toxic components due to high temperatures or friction. Simultaneously, bacteria are not easily grown on the glass surface, and it can be cleaned directly with a stiff brush or by high-temperature steaming without worrying about scratching the coating or corrosion. The stainless steel outer shell 2 provides a certain degree of heat preservation, and its strong impact resistance protects the glass inner liner 1, preventing damage to the water cup. Furthermore, the smooth surface of the stainless steel outer shell 2 makes it easy to clean and prevents stains from remaining.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stainless steel shell glass liner thermal water cup, characterized in that: The utility model provides a glass inner bag (1), stainless steel shell (2), sealing plate (3) and cup cover (4) are included, the top end and bottom end of stainless steel shell (2) open setting, stainless steel shell (2) is set outside glass inner bag (1), the top end of glass inner bag (1) is integrally provided with limiting ring (11), limiting ring (11) with stainless steel shell (2) top end is opposite, sealing plate (3) fixed setting is at the bottom end of stainless steel shell (2), the glass inner bag (1) and stainless steel shell (2) between be provided with silica gel positioning ring (5), the outer wall of glass inner bag (1) is set up with the positioning groove (12) of silica gel positioning ring (5) insertion, the interference setting between silica gel positioning ring (5) and positioning groove (12), cup cover (4) and stainless steel shell (2) between detachable connection.

2. The stainless steel shell glass liner vacuum cup of claim 1, wherein: The bottom wall of cup cover (4) is provided with a connecting groove (6) for inserting glass inner bag (1) and stainless steel shell (2), the inner wall of connecting groove (6) is provided with an internal thread (61), the internal thread (61) is integrally formed with the cup cover (4), the outer wall of the stainless steel shell (2) is integrally provided with an external thread (21), and the external thread (21) is in threaded connection with the internal thread (61).

3. The stainless steel shell glass liner vacuum cup of claim 2, wherein: The bottom wall of the connecting groove (6) is fixedly provided with a sealing ring (7), and the limiting ring (11) is opposite to the sealing ring (7).

4. The stainless steel shell glass liner vacuum cup of claim 1, wherein: The top end of the cup cover (4) is provided with a filling groove (8), the filling groove (8) is filled with a heat insulation foam (81), and the cup cover (4) is fixedly provided with a decorative plate (82), and the decorative plate (82) seals the filling groove (8).

5. The stainless steel shell glass liner vacuum cup of claim 1, wherein: The stainless steel shell (2) is provided with a silica gel pad (9), the surface of the silica gel pad (9) is provided with a buffer groove (91) for inserting the glass inner bag (1), the glass inner bag (1) is opposite to the inner wall of the buffer groove (91), and the inner wall of the buffer groove (91) and the top end is inclinedly provided with a guide surface (92).

6. The stainless steel shell glass liner vacuum cup of claim 1, wherein: The sealing plate (3) is integrally provided with a bending part (31), the bending part (31) is fixed between the inner wall of the stainless steel shell (2) and the stainless steel shell (2), the bending part (31) is provided with an anti-skid pad (32), and the anti-skid pad (32) is fixed with the sealing plate (3).

7. The stainless steel shell glass liner vacuum cup of claim 1, wherein: The stainless steel shell (2) is single-layered.

8. The stainless steel shell glass liner vacuum cup of claim 1, wherein: The stainless steel shell (2) is double-layered.