A water cup with a replaceable inner liner

Abstract

This utility model relates to a water cup with a replaceable inner liner, belonging to the technical field of daily necessities. The cup body has an inner liner hole inside. The upper end of the cup body connects to a lid, and the bottom of the lid has a mating groove with an internal thread. The upper end of the cup body has an outer rim corresponding to the inner liner hole, and the top opening of the outer rim has an external thread. The lid is threadedly connected to the cup body via the internal thread, the external thread, and the internal thread. The lower end of the cup body connects to the cup bottom, and the cup bottom has a locking mechanism that engages with the cup body. The inner liner is placed inside the inner liner hole, and a limiting block is fixedly connected to the lower side of the inner liner. This utility model has the following advantages: the locking mechanism between the cup bottom and the cup body allows for the use of inner liners of different materials to cope with various temperature and seasonal changes.

Description

Technical Field

[0001] This utility model is a water cup with a replaceable inner liner, belonging to the technical field of daily necessities. Background Technology

[0002] Water cups are commonly used containers for holding liquids, such as tea, water, coffee, and other beverages. They are typically made of plastic, glass, ceramic, or stainless steel. However, due to varying needs and users, existing water cups require different materials for their inner liner. Some require more robust stainless steel liners, while others need more environmentally friendly ceramic liners. Existing water cups with replaceable liners suffer from problems such as complex structure, difficult replacement, risk of burns, and poor protection. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a water cup with a replaceable inner liner.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A water cup with a replaceable inner liner includes a cup body with an inner liner hole inside. The upper end of the cup body is connected to a cup lid, and the bottom of the cup lid has a mating groove with an internal thread. The upper end of the cup body has an outer rim corresponding to the inner liner hole, and the top opening of the outer rim has an external thread. The cup lid is threadedly connected to the cup body via the internal thread, the external thread, and the internal thread. The lower end of the cup body is connected to the cup bottom, and the cup bottom has a locking mechanism that engages with the cup body. An inner liner is placed inside the inner liner hole, and a limiting block is fixedly connected to the lower side of the inner liner. The limiting block engages with a groove at the bottom of the side of the inner liner hole. The bottom of the inner liner rests on the upper surface of the cup bottom, and the top of the inner liner is seamlessly connected to the outer rim.

[0006] Furthermore, the locking mechanism includes a transmission cavity and two rotating cavities. Both the transmission cavity and the rotating cavities are located inside the bottom of the cup. The two rotating cavities are respectively connected to both sides of the transmission cavity. A worm gear is rotatably connected inside the transmission cavity. The smooth end of the worm gear extends through to the outside of the bottom of the cup and is connected to a rotating torsion block. The threaded end of the worm gear meshes with two worm wheels. A rotating rod is connected to the center of the worm wheels. The rotating rod is rotatably connected inside the rotating cavity. A cylindrical groove is provided at the end of the rotating rod.

[0007] Furthermore, a groove is provided in the inner wall of the rotating cavity, and a pulley is placed in the groove. The pulley is fixedly connected to the rotating rod.

[0008] Furthermore, the outer surface of the end of the rotating rod has a curved guide groove that rotates circumferentially. The curved guide groove is connected to the cylindrical groove. A guide cylinder is inserted into the cylindrical groove. One end of the guide cylinder is fixed to the inner wall of the rotating cavity. A cylindrical space is opened in the middle of the guide cylinder. Guide grooves are opened on both the upper and lower surfaces of the guide cylinder. A turning groove is connected to the front and rear ends of the guide groove. A circular slider is placed inside the cylindrical space. A circular protrusion is fixedly connected to both the upper and lower sides of the circular slider. The curved guide groove and the guide groove overlap internally and externally. The circular protrusion extends through the curved guide groove and the guide groove to the outside of the rotating rod.

[0009] Furthermore, one end of the circular slider is connected to a docking rod, and a square protrusion is fixedly connected to the upper and lower sides of the end of the docking rod.

[0010] Furthermore, the snap-fit ​​mechanism also includes mating grooves formed on the inner walls of both sides of the cup body. Two sealing blocks are symmetrically arranged in the mating grooves, forming a circular hole and a square opening between the two sealing blocks. The two square openings are respectively located on both sides of the circular hole. The mating rod drives the square protrusion through the circular hole and the square opening into the interior of the mating groove. The square protrusion is snapped together with the sealing block. Magnets are provided on opposite sides of both the mating rod and the sealing block.

[0011] Furthermore, a leak-proof washer is provided at the top of the internal threaded hole of the cup lid, and the leak-proof washer is pressed together with the upper surface of the outer edge.

[0012] The beneficial effects of this utility model are:

[0013] Through the transmission system, the rotating torsion block is rotated, which in turn drives the worm gear to rotate. The rotation of the worm gear drives the worm wheels on both sides to rotate, thereby causing the two worm wheels to simultaneously drive their respective connected rotating rods to rotate. The rotating rods rotate stably with the support of the pulleys, and the rotation of the rotating rods will drive the curved guide groove to rotate.

[0014] Through the snap-fit ​​mechanism, the curved guide groove squeezes the circular protrusion, which moves within the guide groove. When the circular protrusion reaches the junction of the guide groove and the turning groove, it rotates into the turning groove under the arc-shaped squeezing and pushing of the inner wall of the curved guide groove. During this process, the circular protrusion, along with the circular slider, the docking rod, and the square protrusion, first moves in a straight line. The docking rod drives the square protrusion through the circular hole and the square opening into the docking groove. When the circular protrusion rotates into the turning groove, the docking rod and the square protrusion rotate synchronously. At this point, the square protrusion and the square opening are misaligned, and the square protrusion snaps together with the sealing block. Simultaneously, the magnetic attraction prevents the square protrusion and the sealing block from detaching arbitrarily.

[0015] The transmission system and snap-fit ​​mechanism allow the cup body and the cup bottom to be disassembled, thus achieving the purpose of easy disassembly and replacement of the inner liner to meet the temperature requirements of different seasons and occasions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a water cup with a replaceable inner liner according to the present invention.

[0018] Figure 2 This is a schematic diagram of the lid, body, and bottom structure of a water cup with a replaceable inner liner according to the present invention.

[0019] Figure 3 This is an enlarged schematic diagram of the snap-fit ​​structure of a water cup with a replaceable inner liner according to the present invention.

[0020] Figure 4 This is an enlarged schematic diagram of the telescopic snap-fit ​​structure of a water cup with a replaceable inner liner according to the present invention.

[0021] Figure 5 This is an enlarged schematic diagram of the worm gear meshing structure of a water cup with a replaceable inner liner according to this utility model.

[0022] Figure 6 This is an enlarged schematic diagram of the locking and latching components of a water cup with a replaceable inner liner according to this utility model.

[0023] In the diagram, 1. Cup body; 2. Cup lid; 3. Cup bottom; 4. Inner liner hole; 5. Inner liner; 6. Outer rim; 7. Leak-proof gasket; 8. Rotating cavity; 9. Pulley; 10. Transmission cavity; 11. Rotating torsion block; 12. Worm gear; 13. Worm wheel; 14. Curved guide groove; 15. Guide groove; 16. Circular protrusion; 17. Circular slider; 18. Connecting rod; 19. Square protrusion; 20. Connecting groove; 21. Circular hole; 22. Square opening; 23. Guide cylinder; 24. Rotating rod; 25. Limiting block; 26. Slide groove; 27. Sealing block; 28. Turning groove. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Please refer to Figure 1 and Figure 2. Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a water cup with a replaceable inner liner includes a cup body 1, an inner liner hole 4 inside the cup body 1, a cup lid 2 connected to the upper end of the cup body 1, a mating groove 20 at the bottom of the cup lid 2 with an internal thread, an outer rim 6 at the upper end of the cup body 1 corresponding to the inner liner hole 4, and an external thread at the top opening of the outer rim 6. The cup lid 2 is threadedly connected to the cup body 1 via the internal thread, the external thread, and the cup body 1. The lower end of the cup body 1 is connected to the cup bottom 3. The cup bottom 3 is provided with a snap-fit ​​mechanism, which is snap-fitted to the cup body 1. The inner liner 5 is placed inside the inner liner hole 4. A limiting block 25 is fixedly connected to the lower side of the inner liner 5. The limiting block 25 is snapped into the groove at the bottom of the side of the inner liner hole 4. The bottom of the inner liner 5 is placed on the upper surface of the cup bottom 3. The top of the inner liner 5 is seamlessly connected to the outer rim 6. A leak-proof gasket 7 is provided at the top of the threaded hole inside the cup lid 2. The leak-proof gasket 7 is pressed together with the upper surface of the outer rim 6. Example

[0027] See Figure 2 and Figure 3The locking mechanism includes a transmission cavity 10 and two rotating cavities 8, both of which are located within the cup bottom 3. The two rotating cavities 8 are respectively connected to both sides of the transmission cavity 10. A worm gear 12 is rotatably connected within the transmission cavity 10. The smooth end of the worm gear 12 extends to the outside of the cup bottom 3 and connects to a rotating torsion block 11. The threaded end of the worm gear 12 meshes with two worm wheels 13. A rotating rod 24 is connected to the center of each worm wheel 13 and rotatably connected within the rotating cavity 8. An opening is formed at the end of the rotating rod 24. The rotating cavity 8 has a cylindrical groove, and a sliding groove 26 is formed in the inner wall of the rotating cavity 8. A pulley 9 is placed in the sliding groove 26, and the pulley 9 is fixedly connected to the rotating rod 24. A curved guide groove 14 is formed on the outer surface of the end of the rotating rod 24 in the circumferential direction. The curved guide groove 14 is connected to the cylindrical groove. A guide cylinder 23 is inserted into the cylindrical groove. One end of the guide cylinder 23 is fixed to the inner wall of the rotating cavity 8. A cylindrical space is formed in the middle of the guide cylinder 23. Guide grooves 15 are formed on both the upper and lower surfaces of the guide cylinder 23. The guide groove 15 is connected to a turning groove 28 at both ends. A circular slider 17 is placed inside the cylindrical space. A circular protrusion 16 is fixedly connected to both the upper and lower sides of the circular slider 17. The curved guide groove 14 and the guide groove 15 overlap internally and externally. The circular protrusion 16 extends through the curved guide groove 14 and the guide groove 15 to the outside of the rotating rod 24. One end of the circular slider 17 is connected to a docking rod 18. A square protrusion 19 is fixedly connected to the upper and lower sides of the end of the docking rod 18. The connecting mechanism also includes connecting grooves 20 formed on the inner walls of both sides of the cup body 1. Two sealing blocks 27 are symmetrically arranged in the connecting grooves 20. A circular hole 21 and a square opening 22 are formed between the two sealing blocks 27. The two square openings 22 are respectively located on both sides of the circular hole 21. The connecting rod 18 drives the square protrusion 19 through the circular hole 21 and the square opening 22 to penetrate the interior of the connecting groove 20. The square protrusion 19 is engaged with the sealing block 27. Magnets are provided on opposite sides of both the connecting rod 18 and the sealing block 27.

[0028] In this embodiment, a snap-fit ​​mechanism and a transmission system are used to rotate the rotating torsion block 11. Simultaneously, the rotating torsion block 11 drives the worm gear 12 to rotate, which in turn drives the worm wheels 13 on both sides to rotate. This causes the two worm wheels 13 to simultaneously drive their respective connected rotating rods 24 to rotate. The rotating rods 24 rotate stably with the support of the pulleys 9. The rotation of the rotating rods 24 causes the curved guide groove 14 to rotate, which in turn compresses the circular protrusion 16. The circular protrusion 16 moves within the guide groove 15. When the circular protrusion 16 reaches the junction of the guide groove 15 and the turning groove 28, it impacts the inner wall of the curved guide groove 14. Under the arc-shaped compression, the circular protrusion 16 will rotate into the turning groove 28. During this process, the circular protrusion 16 will carry the circular slider 17, the docking rod 18, and the square protrusion 19 to make a linear motion first. The docking rod 18 will drive the square protrusion 19 through the circular hole 21 and the square opening 22 to penetrate the interior of the docking groove 20. When the circular protrusion 16 rotates into the turning groove 28, the docking rod 18 and the square protrusion 19 will rotate synchronously. At this time, the square protrusion 19 will be misaligned with the square opening 22, and the square protrusion 19 will be engaged with the sealing block 27. At the same time, under the attraction of the magnet, the square protrusion 19 and the sealing block 27 will not detach arbitrarily.

[0029] When in use, after the inner liner 5 has been placed into the cup body 1, the user holds the cup body 1 firmly with one hand and pinches the fingers of the other hand in the two square slots of the rotating toggle block 11. Rotating the rotating toggle block 11 simultaneously drives the worm gear 12 to rotate, which in turn drives the worm wheels 13 on both sides to rotate. This causes the two worm wheels 13 to simultaneously drive their respective connected rotating rods 24 to rotate. The rotating rods 24 rotate stably with the support of the pulleys 9. The rotation of the rotating rods 24 causes the curved guide groove 14 to rotate, which in turn compresses the circular protrusion 16. The circular protrusion 16 moves within the guide groove 15. When the circular protrusion 16 reaches the point where the guide groove 15 meets the turning groove 28... During this process, under the arc-shaped compression and pushing of the inner wall of the curved guide groove 14, the circular protrusion 16 will rotate into the turning groove 28. In this process, the circular protrusion 16 will carry the circular slider 17, the docking rod 18, and the square protrusion 19 to make a linear motion first. The docking rod 18 drives the square protrusion 19 through the circular hole 21 and the square opening 22 to penetrate the interior of the docking groove 20. When the circular protrusion 16 rotates into the turning groove 28, the docking rod 18 and the square protrusion 19 rotate synchronously. At this time, the square protrusion 19 and the square opening 22 are misaligned, and the square protrusion 19 is engaged with the sealing block 27. At the same time, under the attraction of the magnet, the square protrusion 19 and the sealing block 27 will not detach at will. When it is necessary to disassemble the inner liner 5, simply repeat the above operation in reverse.

[0030] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water cup with a replaceable inner liner, characterized in that, The cup includes a cup body (1), which has an inner liner hole (4) inside. The upper end of the cup body (1) is connected to a cup lid (2). The bottom of the cup lid (2) has a mating groove (20) with an internal thread. The upper end of the cup body (1) has an outer rim (6) which corresponds to the inner liner hole (4). The top opening of the outer rim (6) has an external thread. The cup lid (2) is threadedly connected to the cup body (1) through the internal thread, the external thread, and the internal thread. The lower end of the cup body (1) is connected to the cup bottom (3). The cup bottom (3) is provided with a snap-fit ​​mechanism, which is snap-fitted to the cup body (1). The inner liner (5) is placed inside the inner liner hole (4). A limiting block (25) is fixedly connected to the lower side of the inner liner (5). The limiting block (25) is snapped into the groove at the bottom of the side of the inner liner hole (4). The bottom of the inner liner (5) is placed on the upper surface of the cup bottom (3). The top of the inner liner (5) is seamlessly connected to the outer edge (6).

2. A water cup with a replaceable inner liner according to claim 1, characterized in that, The snap-fit ​​mechanism includes a transmission cavity (10) and two rotating cavities (8). Both the transmission cavity (10) and the rotating cavities (8) are located inside the bottom of the cup (3). The two rotating cavities (8) are respectively connected to both sides of the transmission cavity (10). A worm gear (12) is rotatably connected inside the transmission cavity (10). The smooth end of the worm gear (12) extends to the outside of the bottom of the cup (3) and is connected to a rotating torsion block (11). The threaded end of the worm gear (12) meshes with two worm wheels (13). A rotating rod (24) is connected to the center of the worm wheel (13). The rotating rod (24) is rotatably connected inside the rotating cavity (8). A cylindrical groove is provided at the end of the rotating rod (24).

3. A water cup with a replaceable inner liner according to claim 2, characterized in that, A groove (26) is provided in the inner wall of the rotating cavity (8), and a pulley (9) is placed in the groove (26). The pulley (9) is fixedly connected to the rotating rod (24).

4. A water cup with a replaceable inner liner according to claim 3, characterized in that, The outer surface of the end of the rotating rod (24) has a curved guide groove (14) that rotates in the circumferential direction. The curved guide groove (14) is connected to the cylindrical groove. A guide cylinder (23) is inserted into the cylindrical groove. One end of the guide cylinder (23) is fixed to the inner wall of the rotating cavity (8). A cylindrical space is opened in the middle of the guide cylinder (23). Guide grooves (15) are opened on both the upper and lower surfaces of the guide cylinder (23). A turning groove (28) is connected to the front and rear ends of the guide groove (15). A circular slider (17) is placed inside the cylindrical space. A circular protrusion (16) is fixedly connected to both the upper and lower sides of the circular slider (17). The curved guide groove (14) and the guide groove (15) are staggered. The circular protrusion (16) extends through the curved guide groove (14) and the guide groove (15) to the outside of the rotating rod (24).

5. A water cup with a replaceable inner liner according to claim 4, characterized in that, One end of the circular slider (17) is connected to a docking rod (18), and a square protrusion (19) is fixedly connected to the upper and lower sides of the end of the docking rod (18).

6. A water cup with a replaceable inner liner according to claim 5, characterized in that, The snap-fit ​​mechanism also includes a docking groove (20) on the inner walls of both sides of the cup body (1). Two sealing blocks (27) are symmetrically arranged in the docking groove (20). A circular hole (21) and a square opening (22) are formed between the two sealing blocks (27). The two square openings (22) are located on both sides of the circular hole (21). The docking rod (18) drives the square protrusion (19) through the circular hole (21) and the square opening (22) to penetrate the interior of the docking groove (20).

7. A water cup with a replaceable inner liner according to claim 6, characterized in that, The square protrusion (19) is engaged with the sealing block (27). Magnets are provided on opposite sides of both the docking rod (18) and the sealing block (27).

8. A water cup with a replaceable inner liner according to claim 7, characterized in that, A leak-proof washer (7) is provided at the top of the internal threaded hole of the cup lid (2), and the leak-proof washer (7) is pressed together with the upper surface of the outer edge (6).

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