A high-efficiency sealing structure for thermos cups

Abstract

This utility model relates to the field of thermos cup technology and discloses a highly efficient sealing structure for thermos cups, including a cup body and a cup lid. The cup body has a mouth at its top and a cavity inside. A top sealing gasket is fixed to the top of the inner wall of the cup lid, and a sealing ring is fixed to the upper part of the inner wall of the cup lid. A first sealing groove is provided above the surface of the mouth of the cup to accommodate the sealing ring. Two L-shaped blocks arranged opposite each other are fixed to the left and right sides of the surface of the cup lid. An extension ring is fixed above the surface of the cup body. The surface of the extension ring has a through groove for accommodating the L-shaped blocks, and the bottom of the through groove connects to a locking groove. Locking structures are provided on both the left and right sides of the surface of the extension ring. This highly efficient sealing structure for thermos cups solves the problem of existing thermos cups requiring multiple rotations and being easily mis-tightened, achieving a highly efficient seal.

Description

Technical Field

[0001] This utility model relates to the field of thermos cup technology, specifically to a high-efficiency sealing structure for thermos cups. Background Technology

[0002] A thermos is a water container made of ceramic or stainless steel with a vacuum layer. It has a lid that is tightly sealed. The vacuum insulation layer slows down the heat dissipation of the liquid inside, thus achieving the purpose of keeping it warm.

[0003] Most existing thermos cups use a screw-on method to seal the lid and the body, which often requires users to rotate 2 to 3 times to close completely, and leakage is easily caused by not tightening it properly. Therefore, we propose a highly efficient sealing structure for thermos cups. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a highly efficient sealing structure for thermos cups to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-efficiency sealing structure for a thermos cup, including a cup body and a cup lid. The cup body has a cup mouth at the top and a cavity inside. A top sealing gasket is fixed to the top of the inner wall of the cup lid, and a sealing ring is fixed to the upper part of the inner wall of the cup lid. A first sealing groove is provided above the surface of the cup mouth to accommodate the sealing ring. Two L-shaped blocks arranged opposite to each other are fixed on the left and right sides of the surface of the cup lid. An extension ring is fixed above the surface of the cup body. A through groove is opened on the surface of the extension ring to accommodate the L-shaped blocks. A locking groove is connected to the bottom of the through groove. A locking structure is provided on the left and right sides of the surface of the extension ring.

[0006] Preferably, the extension ring surface locking structure includes a mounting shell, which is fixedly connected to the surface of the extension ring. A spring is fixed to the inner wall of the mounting shell, and a locking block is fixed to one end of the spring. The locking block slides through the extension ring and is located inside the locking groove. The surface of the L-shaped block is provided with a positioning groove for the locking block to be inserted, and one end of the locking block is set in a semi-circular structure.

[0007] Preferably, a first magnetic ring is embedded and fixed at the top of the cup body, and a second magnetic ring is embedded and fixed at the bottom of the cup lid.

[0008] Preferably, the bottom of the cup lid is fixed with a bottom sealing gasket, and the top of the cup body is provided with a second sealing groove for inserting the bottom sealing gasket.

[0009] Preferably, guide blocks are fixed on the lower front and rear sides of the cup lid surface, the bottom of the guide blocks is lower than the L-shaped block, and the surface of the extension ring is provided with guide grooves for the guide blocks to be inserted.

[0010] Preferably, the width of the guide groove is greater than the width of the guide block, and the bottom of the guide block is triangular.

[0011] Preferably, the surface of the cup lid is provided with anti-slip protrusions.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] This invention simplifies the complex action of traditional threaded engagement into a single press and light rotation through a synergistic design of magnetic pre-positioning, guided insertion, elastic locking, and multiple seals, significantly shortening the opening and closing time and reducing the probability of misoperation. The top sealing gasket, sealing ring, and bottom sealing gasket form an axial and radial three-dimensional barrier, effectively preventing liquid leakage even if the ambient temperature changes drastically or the cup is impacted. The elastic locking mechanism provides sound and tactile feedback, enhancing the user experience. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a partial cross-sectional structural diagram of the present invention;

[0018] Figure 5 This is a partial structural schematic diagram of the present invention;

[0019] Figure 6 This is a partial cross-sectional structural diagram of the present invention.

[0020] The components are: 1. Cup body; 2. Cup lid; 3. Cup mouth; 4. Cavity; 5. Top sealing gasket; 6. Sealing ring; 7. First sealing groove; 8. Anti-slip protrusion; 9. L-shaped block; 10. Extension ring; 11. Through groove; 12. Locking groove; 13. Mounting shell; 14. Spring; 15. Locking block; 16. Positioning groove; 17. Bottom sealing gasket; 18. Second sealing groove; 19. First magnetic ring; 20. Second magnetic ring; 21. Guide groove; 22. Guide block. Detailed Implementation

[0021] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0022] Please see Figure 1-6A high-efficiency sealing structure for a thermos cup includes a cup body 1 and a cup lid 2. The cup body 1 has a cup opening 3 at the top and a cavity 4 inside. A top sealing gasket 5 is fixed to the top of the inner wall of the cup lid 2, and a sealing ring 6 is fixed to the upper part of the inner wall of the cup lid 2. A first sealing groove 7 is provided above the surface of the cup opening 3 to accommodate the sealing ring 6. Two L-shaped blocks 9 are fixed on the left and right sides of the surface of the cup lid 2. An extension ring 10 is fixed above the surface of the cup body 1. The surface of the extension ring 10 has a through groove 11 to accommodate the L-shaped blocks 9. The bottom of the through groove 11 is connected to a locking groove 12. Locking structures are provided on the left and right sides of the surface of the extension ring 10.

[0023] With the above technical solution, when the user brings the cup lid 2 close to the cup body 1, the cup mouth 3 and the top sealing gasket 5 first form an axial pre-pressure, and then the sealing ring 6 and the first sealing groove 7 form a radial clamping. The L-shaped block 9 moves straight down along the through groove 11 and only needs to be slightly rotated to lock laterally after reaching the locking groove 12. The extension ring 10 provides rigid guidance for the entire movement. This structure completes all actions with one downward pressure and a small-angle rotation, eliminating the cumbersome steps of traditional multi-turn screw engagement and significantly reducing the probability of misoperation. The top sealing gasket 5 and the sealing ring 6 form two independent sealing bands. Even if one of them fails due to aging, the other can still maintain the sealing performance of the cavity 4, thereby improving the overall reliability.

[0024] The surface locking structure of the extension ring 10 includes a mounting shell 13, which is fixedly connected to the surface of the extension ring 10. A spring 14 is fixed to the inner wall of the mounting shell 13, and a locking block 15 is fixed to one end of the spring 14. The locking block 15 slides through the extension ring 10 and is located inside the locking groove 12. The surface of the L-shaped block 9 is provided with a positioning groove 16 that matches the locking block 15. One end of the locking block 15 is set in a semi-circular structure.

[0025] With the above technical solution, when the L-shaped block 9 is rotated into position, the locking block 15 automatically springs into the positioning groove 16 under the action of the spring 14. Its semi-circular end face slides and then engages with the surface of the L-shaped block 9, completing tool-free self-locking; the mounting shell 13 isolates the spring 14 from the outside world to prevent beverage vapor corrosion.

[0026] A first magnetic ring 19 is embedded and fixed at the top of the cup body 1, and a second magnetic ring 20 is embedded and fixed at the bottom of the cup lid 2.

[0027] Through the above technical solution, the first magnetic ring 19 and the second magnetic ring 20 generate magnetic attraction and pre-positioning at the moment when the cup lid 2 approaches the cup body 1, so that the sealing ring 6 and the first sealing groove 7 are automatically aligned; when the L-shaped block 9 enters the locking groove 12, the magnetic force continues to maintain axial compression, eliminating the tiny gaps caused by material shrinkage due to temperature difference. This magnetic auxiliary structure provides users with a clear "fitted" prompt in terms of vision and touch, reducing the need for repeated confirmation actions.

[0028] The bottom of the cup lid 2 is fixed with a bottom sealing gasket 17, and the top of the cup body 1 is provided with a second sealing groove 18 that fits into the bottom sealing gasket 17.

[0029] Through the above technical solution, the bottom sealing gasket 17 moves down with the cup lid 2 into the second sealing groove 18, forming an upper and lower clamping seal with the top sealing gasket 5, and providing a secondary cover to the end face of the cup mouth 3. The three seals work together to significantly improve the leak-proof level, and can keep the liquid from leaking out even if it is inverted or shaken.

[0030] Guide blocks 22 are fixed on the lower sides of the front and rear of the cup lid 2. The bottom of the guide blocks 22 is lower than the L-shaped block 9. The surface of the extension ring 10 is provided with guide grooves 21 that are used to fit the guide blocks 22.

[0031] Through the above technical solution, the guide block 22 enters the guide groove 21 first when the cup lid 2 is close to the cup body 1, and uses its height difference from the L-shaped block 9 to achieve sequential guidance, ensuring that the L-shaped block 9 is aligned with the through groove 11; the sliding cooperation between the guide block 22 and the guide groove 21 restricts the horizontal rotational freedom of the cup lid 2, and avoids skewed pressing that causes shear damage to the sealing ring 6.

[0032] The width of the guide groove 21 is greater than the width of the guide block 22, and the bottom of the guide block 22 is triangular.

[0033] Through the above technical solution, the width of the guide groove 21 is greater than the width of the guide block 22, which ensures that the guide block 22 can rotate and move with the cup lid 2 inside the guide groove 21; the triangular design at the bottom of the guide block 22 forms a progressive guide during the insertion stage, making it easier for the guide block 22 to enter the guide groove 21.

[0034] The surface of the cup lid 2 is provided with anti-slip protrusions 8.

[0035] Through the above technical solution, the anti-slip protrusions 8 are distributed on the outside of the cup lid 2. When the user rotates the cup lid 2 with wet hands or wearing gloves, the protrusions provide additional friction to prevent slipping.

[0036] Working principle: The user holds the cup with one hand and moves the lid 2 down. The guide block 22 first inserts into the guide groove 21, and the triangular base automatically corrects the center. The L-shaped block 9 then enters the through groove 11. When the bottom of the lid 2 is close to the top of the cup body 1, the first magnetic ring 19 and the second magnetic ring 20 attract each other to complete the pre-positioning. The top sealing gasket 5 is compressed by the cup mouth 3, the sealing ring 6 is embedded in the first sealing groove 7, and the bottom sealing gasket 17 is simultaneously embedded in the second sealing groove 18 to form an initial seal. Then, the lid 2 is rotated clockwise, and the L-shaped block 9 slides laterally into the locking groove 12. Its surface presses against the semi-circular end face of the locking block 15, and the spring 14 is compressed to make way. When the positioning groove 16 is aligned with the locking block 15, the spring 14 rebounds and makes a clicking sound to indicate that the locking is complete. The anti-slip protrusion 8 provides additional friction during rotation. To unlock, it can be separated by rotating in the opposite direction and then moving upward. The whole process does not require multiple rotations of the thread. A reliable seal is achieved by pressing and twisting at a small angle in one step. This solves the problem of existing thermos cups requiring multiple rotations and being easily mis-tightened, achieving a highly efficient seal.

[0037] Although specific 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 specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A highly efficient sealing structure for a thermos cup, characterized in that: The cup includes a cup body (1) and a cup lid (2). The cup body (1) has a cup mouth (3) at the top and a cavity (4) inside. The cup lid (2) has a top sealing gasket (5) fixed on the top of its inner wall and a sealing ring (6) fixed on the top of its inner wall. The cup mouth (3) has a first sealing groove (7) above it that fits the sealing ring (6). The cup lid (2) has two L-shaped blocks (9) fixed on its left and right sides. The cup body (1) has an extension ring (10) above it. The extension ring (10) has a through groove (11) on its surface that fits the L-shaped blocks (9). The bottom of the through groove (11) is connected to a locking groove (12). The extension ring (10) has a locking structure on its left and right sides.

2. The high-efficiency sealing structure for a thermos cup according to claim 1, characterized in that: The surface locking structure of the extension ring (10) includes a mounting shell (13), which is fixedly connected to the surface of the extension ring (10). A spring (14) is fixed to the inner wall of the mounting shell (13), and a locking block (15) is fixed to one end of the spring (14). The locking block (15) slides through the extension ring (10). The locking block (15) is located inside the locking groove (12). The surface of the L-shaped block (9) is provided with a positioning groove (16) for the locking block (15) to be inserted. One end of the locking block (15) is set in a semi-circular structure.

3. The high-efficiency sealing structure for a thermos cup according to claim 1, characterized in that: The top of the cup body (1) is fitted with a first magnetic ring (19), and the bottom of the cup lid (2) is fitted with a second magnetic ring (20).

4. The high-efficiency sealing structure for a thermos cup according to claim 1, characterized in that: The bottom of the cup lid (2) is fixed with a bottom sealing gasket (17), and the top of the cup body (1) is provided with a second sealing groove (18) that fits into the bottom sealing gasket (17).

5. The high-efficiency sealing structure for a thermos cup according to claim 1, characterized in that: Guide blocks (22) are fixed on the lower sides of the front and rear surfaces of the cup lid (2). The bottom of the guide block (22) is lower than the L-shaped block (9). The surface of the extension ring (10) is provided with a guide groove (21) for the guide block (22) to be inserted.

6. The high-efficiency sealing structure for a thermos cup according to claim 5, characterized in that: The width of the guide groove (21) is greater than the width of the guide block (22), and the bottom of the guide block (22) is triangular.

7. The high-efficiency sealing structure for a thermos cup according to claim 1, characterized in that: The surface of the cup lid (2) is provided with anti-slip protrusions (8).

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