Cup cover structure with detachable inner cover and water cup formed by cup cover structure

Abstract

The invention relates to the technical field of living appliances, in particular to a cup cover structure with a detachable inner cover, which comprises a cup cover body and a straw, the cup cover body comprises an upper cover and a lower cover, one side edge of the upper cover is hinged on the lower cover, and the other opposite side edge of the upper cover is mutually buckled with or separated from the lower cover; the inner cover is detachably connected with the lower cover, the straw is arranged on the inner cover in a penetrating mode, an elastic buckle is arranged on one side of the inner cover, and a fixing protruding block is arranged on the other opposite side of the inner cover; the lower cover is provided with a groove step clamped with the elastic buckle, and the lower cover is provided with a positioning groove corresponding to the fixed convex block; the fixing protruding block is clamped into the positioning groove, the elastic buckle is clamped into the groove step, so that the inner cover and the lower cover are buckled, the elastic buckle is pressed by a single hand to be separated from the groove step during disassembly, one side of the inner cover is separated from the lower cover, and the fixing protruding block is separated from the positioning groove at the same time. The inner cover and the lower cover can be quickly separated, effective cleaning is achieved, bacterium breeding is reduced, and drinking water health is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of daily necessities, and in particular to a cup cover structure with a detachable inner cover and a water cup formed therefrom. Background Art

[0002] In our daily lives and work, water cups have become an indispensable daily necessity. As a key component of a water cup, the rationality of its structural design directly affects the user experience and health and safety. Currently, the vast majority of water cup lids on the market use an integrated or semi-integrated structure, where the threaded inner lid is typically integrally molded with the lid body through injection molding or secured with a complex nesting or snap-fitting arrangement. While this design ensures a certain degree of sealing and structural stability, it also presents significant cleaning challenges.

[0003] In actual usage, the internal environment of the cup lid is humid. After each use, tea, coffee, milk, and other beverage residues are easily attached to the gaps and corners of the inner lid. According to test data from relevant health agencies, the total number of bacterial colonies on the threaded inner lid surface of an ordinary water cup lid that has not been thoroughly cleaned for a week can reach thousands per square centimeter, including harmful pathogens such as Escherichia coli and Staphylococcus aureus. However, due to the fixed connection between the inner lid and the main body of the cup lid, users can only clean it through conventional rinsing and wiping, which makes it difficult to reach the subtle corners inside, resulting in long-term dirt and bacteria residue, posing a serious threat to user health.

[0004] Although some water cups have introduced detachable lids in recent years, these designs have obvious shortcomings in terms of ease of operation. Most existing detachable lids require users to use both hands to operate. For example, users need to hold the main body of the lid with one hand and use the other hand to rotate or pry the inner lid to separate it; some structures even require the use of tools to assist in disassembly. This defect is particularly prominent in actual cleaning scenarios: in a home scenario, if a user holds a child in one hand and needs to clean the lid of the water cup with the other hand, the traditional two-handed operation structure is almost impossible to achieve; in an office environment, when a user is busy processing documents or answering calls with one hand and wants to clean the lid after use with the other hand, the existing method of removing the lid will also cause great inconvenience. According to market research data feedback, more than 70% of users give up regular deep cleaning of the cup lid because the existing detachable cup lid is cumbersome to operate, further exacerbating hygiene risks.

[0005] Therefore, developing a cup lid structure and a water cup that can realize convenient disassembly and cleaning of the inner lid and meet the needs of one-handed operation has become a technical problem that needs to be solved urgently in the field of water cup manufacturing. It has important practical significance for improving user experience and ensuring health and safety. Summary of the Invention

[0006] The purpose of the present invention is to provide a cup cover structure with a detachable inner cover and a water cup thereof, so as to realize the separate disassembly and cleaning of the inner cover in the cup cover, and solve the problem of incomplete cleaning of the cup cover in the prior art; the secondary purpose is to enable the cup cover to be disassembled with one hand, thereby improving the convenience of use and meeting the user's usage needs in different scenarios.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A cup cover structure with a detachable inner cover, comprising:

[0009] The cup cover body and the straw, the cup cover body includes an upper cover and a lower cover, one side of the upper cover is hinged to the lower cover, and the other side opposite to the lower cover is engaged with or separated from the lower cover;

[0010] The inner cover is detachably connected to the lower cover, and the straw is inserted into the inner cover. An elastic buckle is provided on one side of the inner cover, and a fixing protrusion is provided on the other opposite side. The lower cover is provided with a groove step that is engaged with the elastic buckle, and the lower cover is provided with a positioning groove that cooperates with the fixing protrusion corresponding to the fixing protrusion. The fixing protrusion is snapped into the positioning groove, and the elastic buckle is snapped into the groove step, so that the inner cover and the lower cover are snapped together.

[0011] Preferably, the elastic buckle is vertically arranged on the inner cover, and its bottom is fixedly connected to the inner cover and extends upward to be provided with a locking hook, and the locking hook cooperates with the groove step to achieve a buckling connection.

[0012] Preferably, the lower cover is further provided with a limiting column, and the limiting column is arranged on the inner side of the lower cover, and the outer side of the inner cover is provided with a limiting groove corresponding to the position of the limiting column.

[0013] Preferably, the lower cover is fastened to or separated from the upper cover by a fastening mechanism, and the fastening mechanism includes a switch button and a reset spring. The switch button is connected to the lower cover through the reset spring. A mounting opening is provided on the side where the lower cover and the upper cover are fastened to or separated from each other, and the switch button is arranged in the mounting opening. A hook is provided on the outside of the switch button, and a snap ring for fastening with the hook is correspondingly provided on the inside of the upper cover.

[0014] Preferably, a shielding piece for installing a switch button is provided at a position corresponding to the mounting opening on the inner side of the lower cover, and the switch button is installed at the mounting opening through the shielding piece. The shielding piece is provided with a spring mounting hole, and a spring column is provided on the inner side of the switch button. The return spring is arranged between the switch button and the shielding piece through the spring column and the spring mounting hole.

[0015] Preferably, the lower cover is further provided with a locking mechanism, the locking mechanism including a locking button, the locking button being provided with a locking rod for limiting the pressing stroke of the switch button, the lower cover being provided with a switch window on one side of the switch button, the locking button being provided in the switch window and displacing in the switch window, the switch window being further provided with a mark for identifying locking and unlocking; the locking rod being movably arranged between the switch button and the shielding piece, the inner side of the switch button being provided with a limiting protrusion that cooperates with the locking rod, the locking button being displaced along the direction of the switch window and driving the locking rod to move between a locked position and an unlocked position;

[0016] When the locking lever is in the locked position, the locking lever is between the switch button and the shielding piece, and abuts against the limiting protrusion to limit the pressing of the switch button; when the locking lever is in the unlocked position, the positions of the locking lever and the switch button are staggered so that the switch button can be pressed.

[0017] Preferably, a lower hook is provided below the switch button, and a slot is provided at the position of the mounting opening corresponding to the lower hook, and the lower hook is engaged with the slot; a limit ring is provided above the switch button, and a limit pin is provided at the position of the lower cover corresponding to the limit ring.

[0018] Preferably, an upper pressure plate is further provided inside the upper cover, and a convection channel is provided on the inner cover at a position corresponding to the upper pressure plate. When the upper cover is buckled onto the lower cover, the upper pressure plate presses and deforms the straw to close the suction channel of the straw, and at the same time blocks and closes the convection channel.

[0019] Preferably, a V-shaped valve sleeve for preventing water leakage is provided on the bottom of the inner cover at a position corresponding to the countercurrent channel.

[0020] A water cup includes a cup body and any one of the above-mentioned cup cover structures with a detachable inner cover, wherein the inner cover is sealedly connected to the mouth of the cup body, the inner cover and the mouth of the cup body are connected by threads, and a sealing ring is provided between the inner cover and the mouth of the cup body.

[0021] After adopting the above structure, the advantages of the present invention compared with the prior art are: the present invention uses the elastic clip on one side of the inner cover to be clamped with the groove step of the lower cover, and the fixed protrusion on the other side to cooperate with the positioning groove of the lower cover. When disassembling, you only need to press the elastic clip with one hand to make the elastic clip disengage from the groove step, so that one side of the inner cover is detached from the lower cover and the fixed protrusion is automatically detached from the positioning groove, thereby realizing rapid separation of the inner cover and the lower cover; this convenient disassembly method allows users to easily deep clean the inner cover that is prone to residual stains, especially sanitary dead corners such as the straw perforation and the corners of the inner cover, which can all be effectively cleaned, greatly reducing the risk of bacterial growth and ensuring the health of users' drinking water. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is an exploded schematic diagram of the lower cover and inner cover of the cup cover of the present invention;

[0023] Figure 2 Schematic cross-sectional view of the lower cover and inner cover of the cup cover of the present invention;

[0024] Figure 3 Schematic cross-section of the cup cover and cup body of the present invention;

[0025] Figure 4 for Figure 3 A partial enlarged schematic diagram of the "A" in the middle;

[0026] Figure 5 This is a structural diagram of the lower cover, button switch, and locking switch of the present invention;

[0027] Figure 6 This is a schematic diagram of the push button switch of the present invention from another angle;

[0028] Figure 7 for Figure 3 A partial enlarged schematic diagram of point "B" in the middle;

[0029] In the figure, 1. straw, 2. upper cover, 3. lower cover, 4. inner cover, 5. elastic buckle, 6. fixing protrusion, 7. groove step, 8. positioning groove, 9. locking hook, 10. limiting column, 11. limiting groove, 12. switch button, 13. return spring, 14. installation opening, 15. hook, 16. retaining ring, 17. shielding piece, 18. spring installation hole, 19. spring column, 20. locking button, 21. locking rod, 22. switch window, 23. limiting protrusion, 24. lower hook, 25. slot, 26. limiting insert ring, 27. limiting latch, 28. upper pressure plate, 29. convection channel, 30. V-type valve sleeve, 31. cup body, 32. sealing ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] It should be noted that when a component / part is referred to as being "set on" another component / part, it may be directly set on the other component / part or there may also be an intermediate component / part. When a component / part is referred to as being "connected / coupled" to another component / part, it may be directly connected / coupled to the other component / part or there may be an intermediate component / part at the same time. The term "connection / coupling" as used herein may include electrical and / or mechanical physical connections / couplings. The term "includes / comprising" as used herein refers to the presence of a feature, step or component / part, but does not exclude the presence or addition of one or more other features, steps or components / parts. The term "and / or" as used herein includes any and all combinations of one or more relevant listed items.

[0032] Example 1:

[0033] like Figures 1 to 2 As shown, a cup cover structure with a detachable inner cover comprises: a cup cover body and a straw 1, the cup cover body comprises an upper cover 2 and a lower cover 3, one side of the upper cover 2 is hinged to the lower cover 3, and its other opposite side is engaged with or separated from the lower cover 3; the inner cover 4 is detachably connected to the lower cover 3, the straw 1 is passed through the inner cover 4, one side of the inner cover 4 is provided with an elastic snap 5, and the other opposite side is provided with a fixing protrusion 6; the lower cover 3 is provided with a groove step 7 engaged with the elastic snap 5, and the lower cover 3 is provided with a positioning groove 8 corresponding to the fixing protrusion 6 that cooperates with the fixing protrusion 6; the fixing protrusion 6 is snapped into the positioning groove 8, and the positioning groove 8 is a groove formed between a protrusion and the lower cover or a protrusion that cooperates with the fixing protrusion 6, and the elastic snap 5 is snapped into the groove step 7 to make the inner cover 4 and the lower cover 3 buckle together.

[0034] The connection method between the lower cover 3 and the inner cover 4 is as follows: the lower cover 3 and the inner cover 4 are connected by the elastic buckle 5 on one side of the inner cover 4 and the groove step 7 of the lower cover 3, and the fixed protrusion 6 on the other side cooperates with the positioning groove 8 of the lower cover 3 to lock each other.

[0035] When the lower cover 3 and the inner cover 4 need to be disassembled, first use the thumb or index finger of one hand to press the side of the inner cover 4 with the elastic buckle 5 (specific location: the part of the elastic buckle 5 exposed at the edge of the inner cover 4); then apply downward or inward pressure to cause the elastic buckle 5 to elastically deform and disengage from the groove step 7 of the lower cover 3 (at this time, a slight unlocking sound of "click" can be heard, or the buckle can be felt to loosen); after the elastic buckle 5 disengages from the groove step 7, one side of the inner cover 4 has been separated from the lower cover 3. At this time, the inner cover 4 is in a single-sided suspended state. Since the fixing protrusion 6 is only resting in the positioning groove 8 without a locking structure, when the inner cover 4 is tilted, the fixing protrusion 6 will naturally slide out of the positioning groove 8 due to gravity and the tilt angle. This disassembly method can be completed with one hand without tools or complicated steps, allowing users to easily deep clean the inner cover 4 where stains are easily retained, especially the sanitary dead corners such as the perforation of the straw 1 and the corners of the inner cover 4, which can be effectively cleaned, greatly reducing the risk of bacterial growth and ensuring the health of users' drinking water.

[0036] The elastic buckle 5 is vertically arranged on the inner cover 4, and its bottom is connected and fixed to the inner cover 4 and extends upward to provide a locking hook 9, and the locking hook 9 cooperates with the groove step 7 to achieve a snap-on connection; when disassembly is required, the user only needs to press the locking hook 9 to disengage it from the groove step 7. The elastic buckle 5 is made of silicone or soft glue, and can also use other types of elastic materials or structures such as PP (polypropylene) or PCT (polyethylene terephthalate), which are not specifically limited here.

[0037] like Figure 1 and Figure 4 As shown, the lower cover 3 is further provided with a limiting post 10, which is arranged on the inner side of the lower cover 3. The outer side of the inner cover 4 is provided with a limiting groove 11 corresponding to the position of the limiting post 10. When installing the inner cover 4, the limiting post 10 can be inserted into the limiting groove 11, providing a clear installation guide for the inner cover 4. This can prevent the inner cover 4 from being offset or skewed during installation, allowing the inner cover 4 to be accurately installed in the predetermined position on the lower cover 3, ensuring the standardization and consistency of product assembly. In addition, during use, the product may be subjected to external forces such as extrusion, collision or vibration. The cooperation between the limiting post 10 and the limiting groove 11 can form a rigid support structure, enhancing the connection strength between the inner cover 4 and the lower cover 3. For example, when the product is subjected to external impact, the relative displacement between the inner cover 4 and the lower cover 3 is reduced, reducing the risk of product failure due to structural loosening.

[0038] Example 2:

[0039] like Figure 5 and Figure 7As shown, the lower cover 3 is fastened to or separated from the upper cover 2 by a fastening mechanism. The fastening mechanism includes a switch button 12 and a return spring 13. The switch button 12 is connected to the lower cover 3 through the return spring 13. A mounting opening 14 is provided on one side where the lower cover 3 and the upper cover 2 are fastened to or separated from each other. The switch button 12 is arranged in the mounting opening 14. A hook 15 is provided on the outer side of the switch button 12, and a snap ring 16 for fastening with the hook 15 is correspondingly provided on the inner side of the upper cover 2.

[0040] When the upper cover 2 and the lower cover 3 need to be fastened to each other, the snap ring 16 on the inner side of the upper cover 2 corresponds to the hook 15 of the switch button 12; at this time, the upper cover 2 is gently pressed, the upper cover 2 moves downward, the snap ring 16 contacts the hook 15, and as the upper cover 2 continues to be pressed downward, the hook 15 is squeezed by the snap ring 16, overcoming the elastic force of the return spring 13 and shrinking and moving toward the installation opening 14; when the snap ring 16 passes the highest point of the hook 15, the return spring 13 recovers its deformation, pushing the switch button 12 to reset, and the hook 15 extends again and snaps into the snap ring 16, completing the fastening of the lower cover 3 and the upper cover 2, so that the two are tightly connected as a whole.

[0041] When the upper cover 2 and the lower cover 3 need to be separated from each other, it is only necessary to press the switch button 12. Under the action of the pressing force, the switch button 12 compresses the return spring 13 and moves into the installation opening 14, driving the hook 15 to retract together; after the hook 15 retracts, it disengages from the snap ring 16 on the inner side of the upper cover 2, releasing the constraint on the snap ring 16; at this time, the upper cover 2 is no longer hindered by the hook 15 and can be flipped upward to achieve the separation of the lower cover 3 from the upper cover 2.

[0042] like Figure 5 and Figure 6 As shown, a shielding piece 17 for mounting the switch button 12 is provided on the inner side of the lower cover 3 at a position corresponding to the mounting opening 14. The switch button 12 is mounted in the mounting opening 14 via the shielding piece 17. The shielding piece 17 has a spring mounting hole 18. A spring post 19 is provided on the inner side of the switch button 12. The return spring 13 is disposed between the switch button 12 and the shielding piece 17 via the spring post 19 and the spring mounting hole 18. During installation, the return spring 13 is first inserted onto the spring post 19 on the inner side of the switch button 12, and the other end of the spring is inserted into the spring mounting hole 18 of the shielding piece 17. The assembled switch button 12 and the shielding piece 17 are then integrally mounted in the corresponding mounting opening 14 on the inner side of the lower cover 3. The shielding piece 17 covers the mounting opening 14, restricting the range of movement of the switch button 12. The shielding piece 17 also conceals the mounting structure and internal components of the switch button 12, making the inner surface of the lower cover 3 smoother and flatter, making it easier to clean and enhancing the product's aesthetic appearance.

[0043] like Figure 5 and Figure 7As shown, the lower cover 3 is further provided with a locking mechanism, which includes a locking button 20. The locking button 20 is provided with a locking rod 21 for limiting the pressing stroke of the switch button 12. The lower cover 3 is provided with a switch window 22 on one side of the switch button 12. The locking button 20 is arranged in the switch window 22 and moves in the switch window 22. The switch window 22 is also provided with a mark for identifying locking and unlocking; the locking rod 21 is movably arranged between the switch button 12 and the shielding piece 17. The inner side of the switch button 12 is provided with a limiting protrusion 23 that cooperates with the locking rod 21. The locking button 20 moves along the direction of the switch window 22 and drives the locking rod 21 to move between the locked position and the unlocked position.

[0044] In the unlocked state, the locking button 20 is in the unlocked position, and the locking rod 21 is offset from the switch button 12. At this time, pressing the switch button 12 is not hindered, and the switch button 12 can normally compress the return spring 13, driving the hook 15 to retract, thereby separating the lower cover 3 from the upper cover 2; when performing the fastening operation, the upper cover 2 is pressed down, the hook 15 overcomes the elastic force of the return spring 13 and contracts, and then resets and clamps the snap ring 16 of the upper cover 2; during the whole process, the switch button 12 can move freely without being interfered with by the locking rod 21.

[0045] To lock the snap mechanism to prevent accidental separation, the lock button 20 is pushed in the direction of the lock mark on the switch window 22. The lock button 20 drives the lock rod 21 from the unlocked position to the locked position, and the lock rod 21 gradually enters between the switch button 12 and the shielding piece 17. When the lock rod 21 reaches the locked position, it abuts against the limiting protrusion 23 on the inner side of the switch button 12. At this time, the locking rod 21 limits the pressing stroke of the switch button 12. No matter how much external force is applied, the switch button 12 cannot compress the return spring 13 to drive the hook 15 to retract, so that the lower cover 3 and the upper cover 2 remain firmly fastened and will not be accidentally separated; to release the lock, push the locking button 20 in the opposite direction to drive the locking rod 21 to move from the locked position to the unlocked position; as the locking button 20 moves, the locking rod 21 gradually shifts away from the position of the switch button 12 and no longer contacts the limiting protrusion 23; when the locking rod 21 is completely in the unlocked position, the switch button 12 resumes its free movement state, and the user can again separate the lower cover 3 from the upper cover 2 by pressing the switch button 12 normally.

[0046] A lower hook 24 is provided below the switch button 12, and a slot 25 is provided at a position of the mounting opening 14 corresponding to the lower hook 24, and the lower hook 24 is buckled with the slot 25; a limiting ring 26 is provided above the switch button 12, and a limiting pin 27 is provided at a position of the lower cover 3 corresponding to the limiting ring 26. The buckling of the lower hook 24 and the slot 25, and the cooperation of the limiting ring 26 and the limiting pin 27 limit and fix the switch button 12 from the upper and lower directions to prevent the switch button 12 from shaking, tilting or falling out at the mounting opening 14. Even if the product is subjected to strong vibration or external force impact, the switch button 12 can still remain in place, ensuring the normal operation of the buckling mechanism and the locking mechanism. In addition, when installing the switch button 12, workers only need to simply align and press to quickly complete the installation, thereby improving assembly efficiency. During the product maintenance stage, if the switch button 12 fails, it is only necessary to pull out the limit pin 27 from the limit ring 26 to release the restriction on the switch button 12. Then, the corresponding components can be disassembled and removed from the lower cover 3 for replacement conveniently and quickly without the need for complex tools and tedious disassembly steps, thereby reducing maintenance costs and time.

[0047] Example 3:

[0048] like Figure 1 and Figure 3 As shown, an upper pressure plate 28 is further provided within the upper cover 2, and a convection channel 29 is provided on the inner cover 4 at a position corresponding to the upper pressure plate 28. When the upper cover 2 is fastened to the lower cover 3, the upper pressure plate 28 compresses and deforms the straw 1, closing the suction channel of the straw 1 and simultaneously blocking the convection channel 29. When the upper cover 2 and the lower cover 3 are fastened together, the upper cover 2 is aligned with the lower cover 3 and slowly pressed downward. As the upper cover 2 approaches the lower cover 3, the upper pressure plate 28 within the upper cover 2 moves downward. The upper pressure plate 28, exerting pressure from the upper cover 2, squeezes and bends the straw 1 downward. Under the pressure of the upper pressure plate 28, the straw 1 deforms, its suction channel is squeezed closed, and the liquid or gas inside is prevented from flowing out through the straw 1. At the same time, the straw 1 squeezed downward by the upper pressure plate 28 will further compress the convection channel 29 arranged thereunder. Since the straw 1 fits tightly against the convection channel 29, the convection channel 29 is also completely closed, and the convection exchange path of the internal and external gases or liquids is blocked, thereby achieving double sealing of the container.

[0049] When opening the upper cover 2, if the locking mechanism is locked, the lock is first released, and then the switch button 12 is pressed, separating the upper cover 2 from the lower cover 3 via the locking mechanism. As the upper cover 2 is lifted, the upper pressure plate 28 disengages from the straw 1. Without the pressure from the upper pressure plate 28, the straw 1 returns to its original position due to its own elasticity, and its suction channel reopens, allowing the user to easily draw liquid through the straw 1. Simultaneously, the straw 1 no longer compresses the convection channel 29, allowing gas or liquid to flow normally and meeting the user's subsequent needs. In products that store and use liquids or gases, the convection channel 29 is crucial for maintaining internal pressure balance. When a user draws liquid through the straw 1, the reduced liquid volume causes the internal pressure to drop. At this point, the convection channel 29 allows outside air to enter, replenishing the gas and balancing the internal and external pressures, ensuring a smooth drinking process. Without the convection channel 29, the internal pressure of the container continues to drop as liquid is drawn out, eventually forming a negative pressure, making it difficult for the straw 1 to draw liquid out. Similarly, in some scenarios where internal pressure needs to be released, such as sealed cans for storing fermented foods, the convection channel 29 can discharge excess gas generated inside in advance when necessary to prevent the can from rupturing due to excessive air pressure or to prevent internal hot water vapor from spraying out and scalding the human body at the moment the lid is opened, thereby ensuring the safety of product use.

[0050] like Figure 3 As shown, a V-shaped valve sleeve 30 for preventing water leakage is provided at a position corresponding to the counter-flow channel 29 on the bottom of the inner cover 4 .

[0051] like Figure 3 and Figure 4 As shown, another embodiment of the present invention provides a water cup, comprising a cup body 31 and any of the above-mentioned cup cover structures with a detachable inner cover, wherein the inner cover 4 is sealedly connected to the mouth of the cup body 31, the inner cover 4 and the mouth of the cup body 31 being connected by threads, and a sealing ring 32 is provided between the inner cover 4 and the mouth of the cup body 31. The connection method and connection structure between the above-mentioned cup cover and the cup body 31 are common knowledge in the art and will not be described here.

[0052] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A cup cover structure with a detachable inner cover, characterized in that: include: A cup cover body and a straw (1), wherein the cup cover body comprises an upper cover (2) and a lower cover (3), one side of the upper cover (2) is hinged to the lower cover (3), and the other side opposite thereto is engaged with or separated from the lower cover (3); The inner cover (4) is detachably connected to the lower cover (3); the straw (1) is inserted into the inner cover (4); an elastic buckle (5) is provided on one side of the inner cover (4); and a fixing protrusion (6) is provided on the other side opposite thereto; the lower cover (3) is provided with a groove step (7) engaged with the elastic buckle (5); the lower cover (3) is provided with a positioning groove (8) corresponding to the fixing protrusion (6) and matched with the fixing protrusion (6); the fixing protrusion (6) is engaged in the positioning groove (8), and the elastic buckle (5) is engaged in the groove step (7), so that the inner cover (4) and the lower cover (3) are engaged with each other.

2. The cup cover structure with a detachable inner cover according to claim 1, characterized in that: The elastic buckle (5) is vertically arranged on the inner cover (4), and its bottom is fixedly connected to the inner cover (4) and is provided with a locking hook (9) extending upward. The locking hook (9) cooperates with the groove step (7) to achieve a buckling connection.

3. The cup cover structure with a detachable inner cover according to claim 1, characterized in that: The lower cover (3) is further provided with a limiting column (10), which is arranged on the inner side of the lower cover (3), and a limiting groove (11) is provided on the outer side of the inner cover (4) at a position corresponding to the limiting column (10) and matched therewith.

4. The cup cover structure with a detachable inner cover according to claim 1, characterized in that: The lower cover (3) is fastened to or separated from the upper cover (2) by a fastening mechanism, the fastening mechanism comprising a switch button (12) and a return spring (13), the switch button (12) being connected to the lower cover (3) via the return spring (13), a mounting opening (14) being provided on one side where the lower cover (3) and the upper cover (2) are fastened to or separated from each other, the switch button (12) being arranged in the mounting opening (14), a hook (15) being provided on the outer side of the switch button (12), and a snap ring (16) for fastening with the hook (15) being provided on the inner side of the upper cover (2).

5. The cup cover structure with a detachable inner cover according to claim 4, characterized in that: A shielding piece (17) for mounting a switch button (12) is provided on the inner side of the lower cover (3) at a position corresponding to the mounting opening (14); the switch button (12) is mounted at the mounting opening (14) through the shielding piece (17); the shielding piece (17) is provided with a spring mounting hole (18); a spring column (19) is provided on the inner side of the switch button (12); and a return spring (13) is arranged between the switch button (12) and the shielding piece (17) through the spring column (19) and the spring mounting hole (18).

6. The cup cover structure with a detachable inner cover according to claim 5, characterized in that: The lower cover (3) is further provided with a locking mechanism, the locking mechanism comprising a locking button (20), the locking button (20) being provided with a locking rod (21) for limiting the pressing stroke of the switch button (12), the lower cover (3) being provided with a switch window (22) on one side of the switch button (12), the locking button (20) being provided in the switch window (22) and being displaced in the switch window (22), the switch window (22) being further provided with a mark for identifying locking and unlocking; the locking rod (21) being movably provided between the switch button (12) and the shielding sheet (17), the inner side of the switch button (12) being provided with a limiting protrusion (23) that cooperates with the locking rod (21), the locking button (20) being displaced along the direction of the switch window (22) and driving the locking rod (21) to move between a locked position and an unlocked position; When the locking rod (21) is in the locking position, the locking rod (21) is between the switch button (12) and the shielding piece (17), and abuts against the limiting protrusion (23) to limit the pressing of the switch button (12); when the locking rod (21) is in the unlocking position, the positions of the locking rod (21) and the switch button (12) are staggered, so that the switch button (12) can be pressed.

7. The cup cover structure with a detachable inner cover according to claim 4, characterized in that: A lower hook (24) is provided below the switch button (12), and a slot (25) is provided at a position of the installation opening (14) corresponding to the lower hook (24), and the lower hook (24) is buckled with the slot (25); a limiting insert ring (26) is provided above the switch button (12), and a limiting latch (27) is provided on the lower cover (3) at a position corresponding to the limiting insert ring (26) to match the limiting insert ring (26).

8. The cup cover structure with a detachable inner cover according to claim 1, characterized in that: An upper pressing plate (28) is further provided in the upper cover (2), and a convection channel (29) is provided on the inner cover (4) at a position corresponding to the upper pressing plate (28). When the upper cover (2) is buckled onto the lower cover (3), the upper pressing plate (28) presses and deforms the straw (1) to close the suction channel of the straw (1), and simultaneously blocks and closes the convection channel (29).

9. The cup cover structure with a detachable inner cover according to claim 4, characterized in that: The bottom of the inner cover (4) is sleeved with a V-shaped valve sleeve (30) for preventing water leakage at a position corresponding to the countercurrent channel (29).

10. A water cup, comprising a cup body (31), characterized in that: It also includes a cup cover structure with a detachable inner cover as described in any one of claims 1 to 9, wherein the inner cover (4) is sealedly connected to the mouth of the cup body (31), the inner cover (4) and the mouth of the cup body (31) are connected by threads, and a sealing ring (32) is provided between the inner cover (4) and the mouth of the cup body (31).

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