An easy-to-clean thermos cup

Abstract

This utility model relates to an easy-to-clean thermos cup, characterized by comprising an upper cylinder, a lower cylinder, a lower connecting seat, an upper connecting seat, and a docking assembly. The upper cylinder adopts a double-layer vacuum design, with a lid at the top. The outer ring of the bottom of the upper cylinder is threaded, and the outer ring of the inner side of the lower cylinder is threaded. The lower cylinder and the upper cylinder are sealed together by mutually mating threads. A ring is provided inside the lower cylinder and slidably connected to the bottom of the upper cylinder. The outer ring of the lower cylinder is connected to the lower connecting seat, and the outer ring of the bottom of the upper cylinder is slidably connected to the upper connecting seat. A docking assembly for restricting the rotation of the lower cylinder is provided between the lower connecting seat and the upper connecting seat. The advantage is that by setting a separable upper and lower cylinder structure, the upper and lower cylinders can be detached, allowing for the separation of the upper and lower cylinders during cleaning. This enables direct exposure and cleaning of the bottom and corner gaps inside the lower cylinder, solving the problem of difficult cleaning of the inner bottom of traditional thermos cups.

Description

Technical Field

[0001] This utility model relates to the field of daily necessities technology, and in particular to a thermos cup that is easy to clean. Background Technology

[0002] As an everyday drinking container, the thermos flask has become an indispensable item in modern life due to its excellent heat retention performance and portability. Its core structure is typically made of double-walled stainless steel or other insulating materials, with a vacuum layer blocking heat conduction and convection, thus effectively maintaining the temperature of the liquid inside. With advancements in materials science and manufacturing processes, thermos flasks have seen significant improvements in heat retention time, lightweight design, and durability, and are widely used in drinking water, coffee, tea, and other beverage applications.

[0003] However, existing insulated cup designs generally have structural limitations. To balance capacity and portability, most insulated cups adopt a slim and deep design. While this design reduces size and improves grip comfort, it makes the inner bottom area a cleaning blind spot. For example, the vertical distance between the inner bottom and the rim of a traditional straight-sided insulated cup is relatively long, increasing the difficulty of cleaning.

[0004] The deep and elongated structure of existing insulated cups makes thorough cleaning of the inner bottom particularly difficult. During use, tea stains, coffee residue, or limescale easily accumulate at the bottom, and ordinary cup brushes or sponges, due to their length and shape limitations, cannot effectively reach this area. Even with some products featuring detachable bases or wide-mouth designs, the problem of cleaning these deep bottom areas remains unresolved. Long-term accumulation of grime not only affects hygiene and safety but can also breed bacteria, produce odors, and reduce the user experience. Utility Model Content

[0005] The technical problem to be solved by this invention is that the deep and slender structure creates a cleaning blind spot, and a thermos cup that is easy to clean is provided to solve the above problem.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a thermos cup that is easy to clean includes an upper cylinder, a lower cylinder, a lower connecting seat, an upper connecting seat, and a docking component. The upper cylinder adopts a double-layer vacuum design. A cup lid is provided at the top of the upper cylinder. A thread is provided on the outer ring of the bottom of the upper cylinder. A thread is provided on the outer ring of the inner side of the lower cylinder. The lower cylinder and the upper cylinder are sealed and connected by mutually cooperating threads. A ring is provided inside the lower cylinder and slidably connected to the bottom of the upper cylinder. A lower connecting seat is connected to the outer ring of the lower cylinder. An upper connecting seat is slidably connected to the outer ring of the bottom of the upper cylinder. A docking component for limiting the rotation of the lower cylinder is provided between the lower connecting seat and the upper connecting seat.

[0007] A further preferred embodiment of this utility model is as follows: the docking assembly includes a locking rod and a guide block, the top of the lower connecting seat has a locking groove, the outer side of the upper cylinder has a limiting groove, the inner ring of the upper connecting seat is connected to the guide block, the guide block is slidably connected in the limiting groove, and the bottom of the upper connecting seat is connected to a locking rod, the locking rod is slidably connected in the locking groove.

[0008] A further preferred embodiment of this utility model is: it also includes a reset spring, a reset spring is provided in the limiting groove, one end of the reset spring is connected to the upper cylinder, and the other end is connected to the guide block.

[0009] A further preferred embodiment of this utility model is: it also includes a magnet, the lower connecting seat and the bottom of the slot are connected to a magnet, the locking rod is made of magnetic metal, and the magnet and the locking rod are magnetically connected.

[0010] A further preferred embodiment of this utility model is: it also includes a sealing gasket, with a sealing gasket provided inside the lower cylinder, and both the upper and lower cylinders being press-fitted with the sealing gasket.

[0011] A further preferred embodiment of this utility model is: it also includes a rubber pad, and the bottom of the lower cylinder is connected to the rubber pad.

[0012] A further preferred embodiment of this utility model is: it also includes protrusions, and the outer ring of the lower connecting seat is connected with several protrusions.

[0013] A further preferred embodiment of this utility model is: it also includes an auxiliary ring, and the bottom of the upper connecting seat is connected to the auxiliary ring.

[0014] Compared with the prior art, the advantages of this utility model are: by setting a separable upper and lower cylinder structure, the upper and lower cylinders can be detachably connected, allowing the upper and lower cylinders to be separated during cleaning, so as to directly expose and clean the bottom and corner gaps inside the lower cylinder, thus solving the problem of difficult cleaning of the bottom of the traditional thermos cup; through the docking component, the upper connecting seat and the lower connecting seat form a limiting and locking fit, ensuring a stable connection between the upper and lower cylinders, and also enabling quick disassembly of the lower cylinder, thus achieving convenient operation and reliable connection. Attached Figure Description

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is an exploded view showing the connection relationship between the upper and lower cylinders of this utility model;

[0018] Figure 3 This is a cross-sectional view showing the connection relationship between the lower connecting seat and the upper connecting seat of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a cross-sectional view showing the connection relationship between the reset spring and the guide block of this utility model.

[0021] In the diagram: 1. Upper cylinder, 2. Lower cylinder, 3. Thread, 4. Lower connecting seat, 5. Upper connecting seat, 6. Slot, 7. Locking rod, 8. Limiting slot, 9. Guide block, 10. Return spring, 11. Magnet, 12. Sealing gasket, 13. Rubber gasket, 14. Protrusion, 15. Auxiliary ring. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0023] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0024] This embodiment mainly describes the structure of the thermos cup, as follows:

[0025] An easy-to-clean thermos, such as Figures 1-5 As shown, the device includes an upper cylinder 1, a lower cylinder 2, a lower connecting seat 4, an upper connecting seat 5, and a docking assembly. The upper cylinder 1 adopts a double-layer vacuum design. A cup lid is provided on the top of the upper cylinder 1. A thread 3 is provided on the outer ring of the bottom of the upper cylinder 1. The thread 3 is provided on the outer ring of the inner side of the lower cylinder 2. The lower cylinder 2 and the upper cylinder 1 are sealed and connected by the mutually cooperating thread 3. A ring is provided inside the lower cylinder 2 and is slidably connected to the bottom of the upper cylinder 1. The lower connecting seat 4 is connected to the outer ring of the lower cylinder 2. The upper connecting seat 5 is slidably connected to the outer ring of the bottom of the upper cylinder 1. A docking assembly for restricting the rotation of the lower cylinder 2 is provided between the lower connecting seat 4 and the upper connecting seat 5.

[0026] like Figures 2-5As shown, the docking assembly includes a locking rod 7 and a guide block 9. The lower connecting seat 4 has a locking groove 6 at its top, and the upper cylinder 1 has a limiting groove 8 on its outer side. The guide block 9 is connected to the inner ring of the upper connecting seat 5, and the guide block 9 is slidably connected to the limiting groove 8. The locking rod 7 is connected to the bottom of the upper connecting seat 5, and the locking rod 7 is slidably connected to the locking groove 6. The inner wall of the locking groove 6 is provided with a guide slope, and the end of the locking rod 7 is beveled. The guide slope guides the locking rod 7 to quickly enter the position.

[0027] like Figure 5 As shown, it also includes a reset spring 10. The reset spring 10 is provided in the limiting groove 8. One end of the reset spring 10 is connected to the upper cylinder 1, and the other end is connected to the guide block 9. The reset spring 10 is installed in a pre-compressed state to ensure that the spring always provides a stable rebound force.

[0028] like Figure 5 As shown, it also includes a magnet 11, which is connected to the bottom of the lower connecting seat 4 and the slot 6. The locking rod 7 is made of magnetic metal, and the magnet 11 is magnetically connected to the locking rod 7.

[0029] like Figure 2 As shown, it also includes a sealing gasket 12. The sealing gasket 12 is disposed inside the lower cylinder 2. Both the upper cylinder 1 and the lower cylinder 2 are press-fitted with the sealing gasket 12. The sealing gasket 12 is made of food-grade silicone material and has a wavy cross-section. The wavy cross-section generates multiple sealing lines during compression, which improves the sealing performance and adapts to thermal expansion and contraction.

[0030] like Figure 2 As shown, it also includes a rubber pad 13. The bottom of the lower cylinder 2 is connected to the rubber pad 13. The bottom of the rubber pad 13 is provided with a diamond pattern to increase the friction with the placement surface, prevent the thermos cup from sliding or tipping over, and improve the placement stability.

[0031] like Figure 1 As shown, it also includes protrusions 14. Several protrusions 14 are connected to the outer ring of the lower connecting seat 4. The protrusions 14 are vertically connected. The vertically arranged protrusions 14 have a larger contact area with the hand when rotating, and the perpendicularity to the rotation direction can effectively increase the coefficient of friction and prevent slippage.

[0032] like Figure 1 As shown, it also includes an auxiliary ring 15, which is connected to the bottom of the upper connecting seat 5.

[0033] During normal use, the user can fill or drink water by unscrewing the cup lid on the top of the upper cylinder 1. At this time, the upper cylinder 1 and the lower cylinder 2 are sealed together by the thread 3. The double-layer vacuum structure maintains the liquid temperature, and the internal sealing gasket 12 is in a state of natural compression to ensure sealing.

[0034] During cleaning, the user first holds the auxiliary ring 15 and pushes the upper connecting seat 5 upward. At this time, the guide block 9 on the inner ring of the upper connecting seat 5 slides along the limiting groove 8 on the outer side of the upper cylinder 1, simultaneously compressing the return spring 10 in the limiting groove 8. As the upper connecting seat 5 moves, the locking rod 7 connected to its bottom gradually slides out from the locking groove 6 on the top of the lower connecting seat 4 and overcomes the magnetic attraction of the magnet 11 to disengage. When the locking rod 7 is completely disengaged from the locking groove 6, the upper connecting seat 5 separates from the lower connecting seat 4. At this time, the user can rotate the protrusion 14 on the outer ring of the lower connecting seat 4 by hand. The protrusion 14 undergoes elastic deformation under pressure to increase the friction of the hand, causing the lower cylinder 2 to gradually separate from the upper cylinder 1 through the thread 3. During the separation process, the originally compressed sealing gasket 12 rebounds and recovers its deformation due to the loss of the squeezing force of the upper cylinder 1. The annular structure provided inside the lower cylinder 2 maintains a sliding connection with the bottom of the upper cylinder 1, ensuring a smooth and uninterrupted separation process.

[0035] After separation, the user inserts the inner ring of the lower cylinder 2 into the upper cylinder 1, using the ring to directly scrub the corners and crevices of the lower cylinder 2's inner wall. Then, the lid of the upper cylinder 1 is opened, allowing the entire upper cylinder 1 to be open from top to bottom, enabling direct rinsing of any remaining residue with clean water. The water carries away dirt from the bottom opening, achieving thorough cleaning. After cleaning, the thermos is inverted to air dry, and the lid is tightened again once the inside is completely dry.

[0036] During reassembly, the user pushes the upper connecting seat 5 upward again via the auxiliary ring 15, causing the guide block 9 to slide along the limiting groove 8 and compress the return spring 10. Simultaneously, the lower cylinder 2 is connected to the bottom of the upper cylinder 1 via the thread 3, sealing the through hole at the bottom of the upper cylinder 1. During the connection process, the upper cylinder 1 and the lower cylinder 2 together compress the sealing gasket 12, causing it to elastically deform and tightly fill the gap between them, preventing liquid leakage. Once the thread 3 is fully engaged, the auxiliary ring 15 is released, and the return spring 10 rebounds, pushing the guide block 9 back to its original position. This causes the locking rod 7 at the bottom of the upper connecting seat 5 to re-insert into the locking groove 6 of the lower connecting seat 4. The locking rod 7 is magnetically connected to the magnet 11 at the bottom of the locking groove 6. At this time, the elastic force of the return spring 10 and the magnetic attraction force of the magnet 11 work together to restrict the sliding freedom of the upper connecting seat 5, ensuring the connection stability between the upper cylinder 1 and the lower cylinder 2.

[0037] When placing the thermos cup, the rubber pad 13 connected to the bottom of the lower cylinder 2 is in contact with the contact surface. The elastic deformation of the rubber pad 13 increases the friction with the placement surface, preventing the thermos cup from tipping over or sliding due to external force and improving placement stability.

[0038] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] The present invention provides a detailed description of an easy-to-clean thermos cup. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the present invention and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An easy-to-clean thermos cup, characterized in that: It includes an upper cylinder (1), a lower cylinder (2), a lower connecting seat (4), an upper connecting seat (5), and a docking assembly. The upper cylinder (1) adopts a double-layer vacuum design. A cup lid is provided on the top of the upper cylinder (1). A thread (3) is provided on the outer ring of the bottom of the upper cylinder (1). A thread (3) is provided on the outer ring of the inner side of the lower cylinder (2). The lower cylinder (2) and the upper cylinder (1) are sealed and connected by the mutually mating threads (3). A ring is provided inside the lower cylinder (2) that is slidably connected to the bottom of the upper cylinder (1). The lower connecting seat (4) is connected to the outer ring of the lower cylinder (2). The upper connecting seat (5) is slidably connected to the outer ring of the bottom of the upper cylinder (1). A docking assembly for limiting the rotation of the lower cylinder (2) is provided between the lower connecting seat (4) and the upper connecting seat (5).

2. The easy-to-clean thermos cup according to claim 1, characterized in that: The docking assembly includes a locking rod (7) and a guide block (9). The top of the lower connecting seat (4) has a locking groove (6), the outer side of the upper cylinder (1) has a limiting groove (8), the inner ring of the upper connecting seat (5) is connected to the guide block (9), the guide block (9) is slidably connected in the limiting groove (8), and the bottom of the upper connecting seat (5) is connected to the locking rod (7), the locking rod (7) is slidably connected in the locking groove (6).

3. The easy-to-clean thermos cup according to claim 2, characterized in that: It also includes a reset spring (10), which is provided in the limiting groove (8). One end of the reset spring (10) is connected to the upper cylinder (1), and the other end is connected to the guide block (9).

4. The easy-to-clean thermos cup according to claim 3, characterized in that: It also includes a magnet (11), the bottom of the lower connecting seat (4) and the card slot (6) are connected to the magnet (11), the card rod (7) is a magnetic metal, and the magnet (11) and the card rod (7) are magnetically connected.

5. A thermos cup that is easy to clean according to claim 4, characterized in that: It also includes a sealing gasket (12), and a sealing gasket (12) is provided inside the lower cylinder (2). The upper cylinder (1) and the lower cylinder (2) are both squeezed together with the sealing gasket (12).

6. The thermos cup that is easy to clean according to claim 5, characterized in that: It also includes a rubber pad (13), and the bottom of the lower cylinder (2) is connected to the rubber pad (13).

7. A thermos cup that is easy to clean according to claim 6, characterized in that: It also includes protrusions (14), and the outer ring of the lower connecting seat (4) is connected with several protrusions (14).

8. The easy-to-clean thermos cup according to claim 7, characterized in that: It also includes an auxiliary ring (15), and the bottom of the upper connecting seat (5) is connected to the auxiliary ring (15).

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