A vacuum cup
By employing a double-layer insulation structure and sealing design in the thermos, the problems of easy air leakage and limited functionality of traditional thermoses are solved, achieving better insulation performance and greater flexibility in water storage capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYANG TENGBOER CUP IND CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional thermos cups have a single-layer vacuum insulation cavity that is prone to air leakage, which leads to a decrease in heat preservation performance, and their functional design is limited.
It adopts a double-layer insulation structure, including an insulation cavity between the outer insulation cylinder and the inner insulation cylinder. Combined with the design of sealing ring and limiting cylinder, a double insulation layer is formed to improve the insulation effect. When needed, the water storage capacity can be increased by adjusting the upper cover plate to match the outer cylinder.
It significantly improves the heat preservation performance of the thermos cup, increases the water storage capacity without affecting the heat preservation effect, and enhances the sealing performance and flexibility of use.
Smart Images

Figure CN224291649U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermos cup technology, and in particular to a thermos cup. Background Technology
[0002] A thermos is an everyday container that maintains the temperature of liquids through a special structural design. Its core principle is to use vacuum insulation or heat insulation materials to block heat conduction, thereby keeping the drinking water inside the thermos warm.
[0003] Traditional insulation technology mainly relies on a single-layer vacuum insulation cavity to achieve the insulation effect. While this structure can basically meet the requirements, it has obvious limitations: firstly, the single-layer vacuum cavity is prone to air leakage at the welds after long-term use, leading to a decline in insulation performance; secondly, its functional design is limited. Therefore, this application proposes a thermos cup to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a thermos cup that solves the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a thermos cup, comprising an insulated outer cylinder and a suction tube, wherein an insulated inner cylinder is provided inside the insulated outer cylinder, and a limiting cylinder is provided outside the insulated inner cylinder. The upper portions of both the limiting cylinder and the insulated inner cylinder are stepped. The inner wall of the limiting cylinder abuts against the outer wall of the insulated inner cylinder, and the lower end of the limiting cylinder extends to the inner side of the insulated inner cylinder. The outer wall of the insulated inner cylinder does not contact the inner wall of the insulated outer cylinder. A top cover is provided above the limiting cylinder, and an adapter tube is fixedly connected to the lower end of the top cover. The lower end of the adapter tube extends to the inner side of the insulated inner cylinder. A through hole is provided on the top cover, and an abutment sleeve is provided on the inner wall of the through hole. The suction tube is located inside the insulated inner cylinder, and the upper end of the insulated inner cylinder passes through the abutment sleeve and extends above the top cover.
[0006] Preferably, a second sealing ring is fixedly connected to the lower end of the outer wall of the limiting cylinder, the outer end of the second sealing ring abuts against the inner wall of the outer insulation cylinder, a first sealing ring is fixed to the outer end of the adapter tube, the first sealing ring and the second sealing ring are the same size, and the inner diameter of the upper end of the inner wall of the inner insulation cylinder is the same as the inner diameter of the upper end of the inner wall of the outer insulation cylinder.
[0007] Preferably, the inner wall of the heat-insulating outer cylinder is provided with a heat-insulating cavity.
[0008] Preferably, an anti-detachment ring is fixedly connected to the lower end of the outer wall of the water suction pipe, and the outer diameter of the anti-detachment ring is smaller than the inner diameter of the abutment sleeve.
[0009] Preferably, a protective sleeve is fitted over the upper end of the water suction pipe, and both the protective sleeve and the limiting cylinder are made of soft rubber material.
[0010] Preferably, an auxiliary plate is fixedly connected to the outer end of the upper cover plate.
[0011] Compared with related technologies, the thermos cup provided by this utility model has the following beneficial effects:
[0012] 1. This utility model provides a thermos cup. The device has an inner thermos cup inside the outer thermos cup and a heat insulation cavity on the inner wall of the outer thermos cup. At the same time, a second heat insulation cavity is formed between the inner thermos cup and the outer thermos cup. The heat insulation effect of the thermos cup is greatly improved by the double-layer heat insulation design.
[0013] 2. This utility model provides a thermos cup. In this device, sealing ring one and sealing ring two are the same size. The inner diameter of the upper end of the inner wall of the inner insulated cylinder is the same as the inner diameter of the upper end of the inner wall of the outer insulated cylinder. Under normal conditions, the thermos cup uses the inner insulated cylinder to store water. When considering the water storage capacity, the upper cover can be directly matched with the outer insulated cylinder to unlock the second use state of this device, thereby increasing the water storage capacity. The heat insulation cavity also achieves the traditional heat preservation effect. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a three-dimensional cross-sectional structural diagram of the thermal insulation outer cylinder of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the upper cover plate and the water suction pipe in the combined state of this utility model;
[0017] Figure 4 This is a three-dimensional structural diagram of the water suction pipe of this utility model;
[0018] Figure 5 This is a three-dimensional cross-sectional view of the through hole location of this utility model;
[0019] Figure 6 This is a schematic diagram of the three-dimensional structure of the heat-insulating inner cylinder of this utility model;
[0020] Figure 7 This is a cross-sectional three-dimensional structural diagram of the present invention;
[0021] Figure 8 for Figure 7 Enlarged view of a portion of point A in the middle;
[0022] Figure 9 This is a three-dimensional structural diagram of another state of the present invention.
[0023] In the diagram: 1. Insulated outer cylinder; 2. Insulated cavity; 3. Limiting cylinder; 4. Top cover plate; 5. Auxiliary plate; 6. Adapter pipe; 7. Through hole; 8. Abutment sleeve; 9. Sealing ring one; 10. Water suction pipe; 11. Protective sleeve; 12. Anti-detachment ring; 13. Insulated inner cylinder; 14. Sealing ring two. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-9 This utility model provides a technical solution: a thermos cup, including an outer insulated cylinder 1 and a suction tube 10. The bottom of the outer insulated cylinder 1 is provided with a rubber pad, which provides good anti-slip and noise reduction when the thermos cup is placed. The outer insulated cylinder 1 is made of 316 stainless steel. An inner insulated cylinder 13 is provided inside the outer insulated cylinder 1, and the inner insulated cylinder 13 is made of glass. A limiting cylinder 3 is provided on the outer side of the inner insulated cylinder 13. Both the limiting cylinder 3 and the upper part of the inner insulated cylinder 13 are stepped. The inner wall of the limiting cylinder 3 is flush with the inner insulated cylinder 1. The outer wall of the limiting cylinder 3 abuts against the inner wall of the insulation inner cylinder 13. The lower end of the limiting cylinder 3 extends to the inner side of the insulation inner cylinder 13. The outer wall of the insulation inner cylinder 13 does not contact the inner wall of the insulation outer cylinder 1. An upper cover plate 4 is provided above the limiting cylinder 3. An adapter tube 6 is fixedly connected to the lower end of the upper cover plate 4. The lower end of the adapter tube 6 extends to the inner side of the insulation inner cylinder 13. A through hole 7 is provided on the upper cover plate 4. An abutting sleeve 8 is provided on the inner wall of the through hole 7. The water suction pipe 10 is located inside the insulation inner cylinder 13. The upper end of the insulation inner cylinder 13 passes through the abutting sleeve 8 and extends to the upper cover plate 4.
[0026] A sealing ring 14 is fixedly connected to the lower end of the outer wall of the limiting cylinder 3. The outer end of the sealing ring 14 abuts against the inner wall of the outer insulation cylinder 1. A sealing ring 9 is fixed to the outer end of the adapter tube 6. The sealing ring 9 and the sealing ring 14 are the same size. The inner diameter of the upper end of the inner wall of the inner insulation cylinder 13 is the same as the inner diameter of the upper end of the inner wall of the outer insulation cylinder 1. Under normal conditions, the thermos cup uses the inner insulation cylinder 13 to store water. When considering the water storage capacity, the upper cover plate 4 can be directly matched with the outer insulation cylinder 1 to unlock the second use state of this device, increase the water storage capacity, and use the heat insulation cavity 2 to achieve the traditional heat preservation effect. The sealing effect between the outer insulation cylinder 1, the inner insulation cylinder 13 and the upper cover plate 4 is achieved by the sealing ring 9. The sealing effect between the limiting cylinder 3 and the inner wall of the outer insulation cylinder 1 is achieved by the sealing ring 14, thereby ensuring the heat preservation effect of forming a cavity between the outer insulation cylinder 1 and the inner insulation cylinder 13.
[0027] A heat insulation cavity 2 is provided on the inner wall of the outer heat insulation cylinder 1. The heat insulation cavity 2, the outer heat insulation cylinder 1 and the inner heat insulation cylinder 13 form a cavity to improve the heat insulation effect of the device.
[0028] An anti-detachment ring 12 is fixedly connected to the lower end of the outer wall of the suction pipe 10. The outer diameter of the anti-detachment ring 12 is smaller than the inner diameter of the abutment sleeve 8. The anti-detachment ring 12 effectively prevents the suction pipe 10 from sliding out of the abutment sleeve 8.
[0029] A protective sleeve 11 is fitted on the upper end of the water suction pipe 10. Both the protective sleeve 11 and the limiting cylinder 3 are made of soft rubber material. The upper end of the water suction pipe 10 is sealed by the protective sleeve 11 to ensure that the upper end of the water suction pipe 10 can be kept clean when not in use. At the same time, the limiting cylinder 3 is made of rubber material to ensure that the connection between the outer insulation cylinder 1 and the inner insulation cylinder 13 is tighter.
[0030] An auxiliary plate 5 is fixedly connected to the outer end of the upper cover plate 4, which makes it easier to open the upper cover plate 4.
[0031] Working principle: During use, the limiting cylinder 3 is fitted onto the upper end of the inner insulation cylinder 13, and the stepped structure of the upper end of the limiting cylinder 3 and the inner insulation cylinder 13 is compatible. The lower ends of the limiting cylinder 3 and the inner insulation cylinder 13 both extend to the inner side of the outer insulation cylinder 1. After installation, the outer wall of the inner insulation cylinder 13 does not contact the inner wall of the outer insulation cylinder 1. The sealing ring 14 on the outer wall of the limiting cylinder 3 seals the position between the outer insulation cylinder 1 and the limiting cylinder 3. After the inner insulation cylinder 13 is filled with water, the upper cover plate 4 is covered, and the sealing ring 9 seals the position between the adapter tube 6 and the inner insulation cylinder 13. A heat insulation cavity 2 is provided on the inner wall of the outer insulation cylinder 1. At the same time, a second heat insulation cavity is formed between the inner insulation cylinder 13 and the outer insulation cylinder 1. The heat insulation effect of the thermos cup is greatly improved through the design of the double insulation layer. The sealing ring 9 and sealing ring 14 are the same size. The inner diameter of the upper end of the inner wall of the inner insulated cylinder 13 is the same as the inner diameter of the upper end of the inner wall of the outer insulated cylinder 1. Under normal conditions, the thermos cup uses the inner insulated cylinder 13 to store water. When considering the water storage capacity, the upper cover plate 4 can be directly matched with the outer insulated cylinder 1 to unlock the second use state of this device, increase the water storage capacity, and achieve the traditional heat preservation effect using the heat insulation cavity 2.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A thermos cup, comprising an insulated outer cylinder (1) and a suction tube (10), characterized in that: An inner insulated cylinder (13) is provided inside the outer insulated cylinder (1), and a limiting cylinder (3) is provided on the outer side of the inner insulated cylinder (13). The upper parts of the limiting cylinder (3) and the inner insulated cylinder (13) are both stepped. The inner wall of the limiting cylinder (3) abuts against the outer wall of the inner insulated cylinder (13), and the lower end of the limiting cylinder (3) extends to the inner side of the inner insulated cylinder (13). The outer wall of the inner insulated cylinder (13) does not contact the inner wall of the outer insulated cylinder (1). A top cover plate (4) is provided above the inner cylinder (3). An adapter tube (6) is fixedly connected to the lower end of the top cover plate (4). The lower end of the adapter tube (6) extends to the inner side of the inner insulation cylinder (13). A through hole (7) is provided on the top cover plate (4). An abutment sleeve (8) is provided on the inner wall of the through hole (7). The water suction pipe (10) is located inside the inner insulation cylinder (13). The upper end of the inner insulation cylinder (13) passes through the abutment sleeve (8) and extends to the top of the top cover plate (4).
2. The thermos cup according to claim 1, characterized in that: A sealing ring 2 (14) is fixedly connected to the lower end of the outer wall of the limiting cylinder (3). The outer end of the sealing ring 2 (14) abuts against the inner wall of the heat-insulating outer cylinder (1). A sealing ring 1 (9) is fixed to the outer end of the adapter tube (6). The sealing ring 1 (9) and the sealing ring 2 (14) are the same size. The inner diameter of the upper end of the inner wall of the heat-insulating inner cylinder (13) is the same as the inner diameter of the upper end of the inner wall of the heat-insulating outer cylinder (1).
3. A thermos cup according to claim 1, characterized in that: The inner wall of the heat-insulating outer cylinder (1) is provided with a heat-insulating cavity (2).
4. A thermos cup according to claim 1, characterized in that: The lower end of the outer wall of the water suction pipe (10) is fixedly connected to an anti-detachment ring (12), the outer diameter of the anti-detachment ring (12) being smaller than the inner diameter of the abutment sleeve (8).
5. A thermos cup according to claim 1, characterized in that: The upper end of the water suction pipe (10) is fitted with a protective sleeve (11), and both the protective sleeve (11) and the limiting cylinder (3) are made of soft rubber material.
6. A thermos cup according to claim 1, characterized in that: An auxiliary plate (5) is fixedly connected to the outer end of the upper cover plate (4).