A detachable sliding leak-proof straw cup cover

Abstract

The utility model relates to straw cup technical field, concretely is a detachable sliding type leakproof straw cup cover, including main cover, the sliding piece is arranged on the main cover and slides, the lower part of sliding piece is provided with silica gel spare on the main cover, is set up on the silica gel spare and goes out water passageway and air inlet, the straw is installed on the sliding piece, and the straw is aligned or staggered with the water outlet channel through the sliding, when the straw is aligned with the water outlet channel, the air inlet opens, when the straw is staggered with the water outlet channel, the air inlet closes. In the detachable sliding type leakproof straw cup cover, the transition fit of bar convex and groove between sliding piece and main cover track groove is realized through "sliding linkage sealing" structure, makes it keep smooth and does not loosen in the process of sliding displacement, and simple opening mode is convenient to use, and the water outlet channel on the silica gel spare and the air inlet realize synchronous opening and closing through the position linkage of sliding piece.

Description

Technical Field

[0001] This utility model relates to the field of straw cup technology, specifically to a detachable sliding leak-proof straw cup lid. Background Technology

[0002] Currently, straw cup lids on the market mainly fall into two categories: one is the basic model without a leak-proof design, where the straw is directly and fixedly connected to the water outlet channel inside the lid, with the straw's flexible structure only slightly preventing liquid from flowing out. In daily use, if the cup is tilted, inverted (such as when squeezed and tilted after being placed in a backpack), or subjected to external impact, the liquid inside the cup is very likely to leak from the straw port or the gap between the water outlet channel and the straw. This can not only wet clothes, backpacks, and other items, but may also damage electronic devices, severely affecting portability, and is especially unsuitable for children or outdoor use.

[0003] Another type is an improved version with basic leak-proof function. To solve the leakage problem, these products usually adopt two design ideas: one is through the "screw cap sealing" structure, that is, a rotatable cap is set on the top of the straw. When drinking, the cap must be unscrewed to expose the straw, and the cap must be tightened to seal the straw end after drinking; the other is through the "silicone sleeve wrapping" structure, that is, an elastic silicone sleeve is wrapped around the outside of the straw. When drinking, the silicone sleeve must be manually pulled out, and the silicone sleeve is put back on the straw end to achieve a seal after drinking. However, both designs have significant drawbacks: From a cleaning perspective, the internal thread gaps of the screw cap, the fit between the silicone sleeve and the straw, and the water outlet channel fixed inside the lid are all "hygiene dead zones" that are difficult to clean thoroughly. Over time, beverage residue and bacteria can easily accumulate, especially in straw cups used by children, potentially leading to oral health problems. From an ease-of-use perspective, both screwing on the cap and inserting / removing the silicone sleeve require two hands (one hand to hold the cup, the other to screw on or insert / remove the sleeve), making it impossible to quickly open and drink with one hand. This is extremely inconvenient in scenarios such as driving or commuting where one hand is needed, and the multiple steps increase the risk of spillage. Furthermore, the leak-proof performance of these products relies on the tightness of the screw cap or the fit of the silicone sleeve. As usage time increases, the screw cap threads wear down, and the silicone sleeve ages and deforms, gradually reducing its leak-proof performance and leaving a potential leakage risk.

[0004] Among the existing published patents, such as the "A cup lid with straw drinking and self-sealing functions and its handle for car cup" with publication number CN217659138U, although it attempts to achieve leak prevention by setting a self-sealing silicone sheet, that is, using the elastic deformation of the silicone sheet to block the water outlet channel, the self-sealing silicone sheet of this design is an integrated structure with the cup lid body and cannot be disassembled. After long-term use, the stains attached to the surface of the silicone sheet are difficult to clean thoroughly, and its sealing depends on the elastic recovery ability of the silicone sheet itself. After repeated use, the silicone is prone to fatigue failure, resulting in a decrease in sealing performance. At the same time, the straw component still needs to be manually pulled out when opening the product, and the operation steps are relatively cumbersome, failing to solve the problem of convenient one-handed operation. Utility Model Content

[0005] The purpose of this invention is to provide a detachable sliding leak-proof straw cup lid to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a detachable sliding leak-proof straw cup lid, including a main lid, a sliding member slidably disposed on the main lid, and a silicone member disposed on the main lid below the sliding member. The silicone member has a water outlet channel and an air inlet. A straw is installed on the sliding member. The sliding member aligns or offsets the straw with the water outlet channel by sliding. When the straw is aligned with the water outlet channel, the air inlet is open. When the straw is offset from the water outlet channel, the air inlet is closed. The sliding member is locked to the main lid by a buckle.

[0007] This design forms the core functional framework of the cup lid, achieving basic opening, closing, and locking through a combination of sliding linkage and silicone sealing. The main lid serves as the load-bearing base, and the sliding component slides along it, its position directly determining the relative state of the straw and the water outlet channel of the silicone component. The silicone component acts as the sealing core, with its water outlet channel being the critical path for liquid flow, and the air inlet used to balance the internal pressure. Both switch states synchronously with the sliding component's position. The locking mechanism physically locks the sliding component, restricting its displacement in non-operational states and preventing accidental contact that could lead to seal failure. When the sliding component aligns the straw with the water outlet channel, liquid flows out along the "water outlet channel - straw" path, and the air inlet opens, allowing external air to enter and balance the pressure. When they are misaligned, the elastic structure of the silicone component blocks the water outlet channel and air inlet, and the locking mechanism locks the sliding component in place, maintaining a sealed state.

[0008] Preferably, the outer side of the main cover is fitted with an anti-slip component.

[0009] This feature includes an anti-slip element installed on the outer edge of the main lid. Utilizing the high coefficient of friction of this element (such as silicone), it increases the contact friction between the hand and the outer edge of the lid. When the user holds the lid and performs sliding operations, disassembly, or installation, the anti-slip element prevents relative sliding between the hand and the lid, improving grip stability.

[0010] Preferably, the top of the main cover is provided with a track groove, and the sides of the slider are provided with grooves, and the slider slides in the track groove.

[0011] This feature provides a directional sliding path for the slider by creating a track groove on the top of the main cover. The grooves on both sides of the slider fit against the inner wall of the track groove, forming a "groove-convex" mating structure. This restricts the slider to slide only along the length of the track groove, preventing lateral offset or misalignment of the slider during operation.

[0012] Preferably, the inner wall of the track groove is provided with strip-shaped protrusions, and the sliding member slides with the track groove through the transition fit between the strip-shaped protrusions and the groove.

[0013] This feature involves creating a strip-shaped protrusion on the inner wall of the track groove, which forms a transition fit with the grooves on both sides of the sliding component. After assembly, a slight gap is left between the strip-shaped protrusion and the groove, ensuring smooth sliding and preventing loosening during the sliding displacement process.

[0014] The sliding member and the silicone member are sealed by an interference fit. When the sliding member moves back and forth, the air inlet opens when the straw is aligned with the water outlet channel and closes when the straw is misaligned with the water outlet channel.

[0015] Preferably, the top of the main cover is provided with a silicone part mounting port, and the water outlet channel and air inlet of the silicone part are provided on the silicone part mounting port.

[0016] This feature provides an independent assembly position for the silicone parts by providing a silicone part mounting port on the top of the main cover. The silicone parts can be fixed in the mounting port by snapping or nesting. The water outlet and air inlet correspond to the opening positions of the mounting port, ensuring that the liquid can smoothly enter the water outlet through the mounting port. At the same time, it facilitates the individual disassembly and installation of the silicone parts.

[0017] Preferably, the fastener has a locking plate installed on both sides, and the main cover has a locking opening on the inner side. The fastener passes through the locking opening and extends into the slide groove, and rotates 90° to lock and limit the sliding part.

[0018] This design features a locking mechanism where the locking plates on both sides of the fastener and the locking opening on the inner side of the main cover form a rotary locking structure. After the fastener passes through the locking opening and extends into the sliding groove of the sliding member, it rotates 90° to engage the locking plate with the inner edge of the locking opening, restricting the axial pull-out of the fastener. This, in turn, restricts the sliding stroke of the sliding member by blocking the sliding groove. After rotating 90° in the opposite direction, the locking plate and the edge of the locking opening are misaligned, allowing the fastener to be pulled out and releasing the restriction on the sliding member.

[0019] Preferably, a silicone ring is fitted onto the buckle.

[0020] This feature involves placing a silicone ring on the fastener at the contact point between the fastener and the main cover's latch. Utilizing the elastic deformation properties of silicone, the ring fills the gap between the fastener and the latch, enhancing their tightness and preventing liquid from seeping through the gap between the latch and the fastener.

[0021] Preferably, the outer end of the buckle is equipped with a screw handle.

[0022] This design increases the grip area of ​​the hand by adding a rotating handle to the outer end of the buckle, providing a point of leverage for the rotating operation. Users can easily rotate the buckle by pinching the handle without directly contacting the buckle body, reducing the difficulty of applying force.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] This detachable sliding leak-proof straw cup lid addresses the "gap leakage" problem of traditional leak-proof lids and the "easily failed seal" defect of improved screw caps / silicone sleeve lids. Its "sliding linkage seal" structure achieves a smooth and secure transition between the sliding component and the main lid's track groove through a strip-shaped protrusion and groove, ensuring easy opening and use. The water outlet and air inlet on the silicone component open and close synchronously through the sliding component's position. When the straw and water outlet are misaligned, the silicone component's elastic structure simultaneously seals both the water outlet and air inlet, forming a flexible seal to prevent liquid leakage due to pressure differences or tilting. In actual use, even when the cup is squeezed, tilted, or bumped, it maintains a good seal, completely solving problems such as "leaking liquid while carrying in a backpack" and "spillage by children." It is safe for use in various scenarios, including outdoor travel, commuting, and children's home use.

[0025] Addressing the shortcomings of existing patents (such as CN217659138U) where the self-sealing silicone sheet is "integrated and not detachable, resulting in incomplete cleaning," this product utilizes a snap-fit ​​mechanism for quick disassembly of its core components. The snap-fit ​​mechanism can be unlocked and pulled out by rotating 90°, releasing the restriction on the sliding component, allowing it to be directly removed from the main cover's track groove. Simultaneously, the silicone component is independently assembled through the silicone component mounting port on the top of the main cover and can be removed separately for cleaning. This design fully exposes areas prone to dirt accumulation, such as the straw, the inner wall of the sliding component, the water outlet channel of the silicone component, and the air inlet. Users can thoroughly remove residue and stains by rinsing with water or cleaning with a brush, eliminating cleaning dead spots and fundamentally solving the health hazard of "bacterial growth" associated with traditional cup lids. It is especially suitable for children with high hygiene requirements.

[0026] Compared to the cumbersome "two-handed operation" of traditional screw caps / silicone sleeve lids, this product adopts a sliding opening design: when holding the cup with one hand, users only need to push the slider with their thumb to simultaneously align the straw with the water outlet and open the air inlet, without the need for additional screw caps or silicone sleeves. The entire opening process takes only 1 second. After drinking, pushing the slider in the opposite direction quickly restores the seal. At the same time, the simultaneous opening and closing of the air inlet balances the air pressure inside the cup, avoiding problems such as "not being able to suck up liquid" or "sudden liquid spraying out" caused by "negative pressure" during drinking, further improving the smoothness of drinking. It is especially suitable for scenarios such as driving or working with one hand, greatly reducing the complexity of operation and the risk of spills.

[0027] In terms of detailed design, the anti-slip material on the outer edge of the main lid increases grip friction, preventing the lid from slipping during opening or disassembly. The silicone ring on the latch enhances the seal between the latch and the main lid, while reducing wear during rotation and unlocking, extending the lifespan of the components. The rotating handle at the outer end of the latch lowers the effort required for disassembly, making it easy for the elderly or children to unlock. Furthermore, the sliding mechanism within the track groove achieves "smooth limiting" through the interaction of the raised strips and grooves, preventing jamming during sliding and providing a slight tactile feedback in the open / closed position. Users can judge the seal status by feel, enhancing the certainty of the user experience. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the main cover in this utility model;

[0032] Figure 5 This is a schematic diagram of the sliding component in this utility model;

[0033] Figure 6 This is a schematic diagram of the silicone component in this utility model;

[0034] Figure 7 This is a schematic diagram of the fastener structure in this utility model;

[0035] The meanings of the labels in the diagram are as follows:

[0036] 1. Main cover; 11. Track groove; 12. Buckle opening; 13. Silicone part mounting port; 2. Sliding part; 21. Straw; 22. Slide groove; 3. Anti-slip part; 4. Silicone part; 41. Water outlet channel; 42. Air inlet; 5. Buckle; 51. Card plate; 52. Twist handle; 6. Silicone ring. Detailed Implementation

[0037] 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.

[0038] This utility model provides a detachable sliding leak-proof straw cup lid, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, the device includes a main cover 1, a sliding member 2 slidably mounted on the main cover 1, and a silicone member 4 located below the sliding member 2 on the main cover 1. The silicone member 4 has a water outlet channel 41 and an air inlet 42. A straw 21 is mounted on the sliding member 2. The sliding member 2 aligns or offsets the straw 21 with the water outlet channel 41 by sliding. When the straw 21 is aligned with the water outlet channel 41, the air inlet 42 is open. When the straw 21 is offset from the water outlet channel 41, the air inlet 42 is closed. The sliding member 2 is locked onto the main cover 1 by a buckle 5.

[0039] The core functional framework of the cup lid achieves basic opening, closing, and locking through "sliding linkage + silicone sealing". The main lid 1 serves as the supporting base, and the sliding part 2 can slide along the main lid 1. Its position directly determines the relative state of the straw 21 on the sliding part 2 and the water outlet channel 41 on the silicone part 4. The silicone part 4 serves as the sealing core, and the water outlet channel 41 on it is the key path for liquid outflow. The air inlet 42 is used to balance the air pressure inside the cup. The two switch states synchronously with the position of the sliding part 2. The latch 5, through physical locking, restricts the displacement of the sliding part 2 in the non-operational state and avoids accidental contact that could lead to seal failure. When the sliding part 2 slides to align the straw 21 with the water outlet channel 41, the liquid can flow out along the "water outlet channel 41 - straw 21" path, and at the same time, the air inlet 42 opens, allowing external air to enter and balance the air pressure. When the two are misaligned, the elastic structure of the silicone part 4 blocks the water outlet channel 41 and the air inlet 42, and the latch 5 locks the position of the sliding part 2, maintaining the sealing state.

[0040] This lays the foundation for the cup lid's "leak-proof and easy-to-use" design. On one hand, the sliding linkage of the sliding component 2 enables synchronous control of the water outlet channel 41 and the air inlet 42, solving the cumbersome problem of "independent operation of water outlet and air pressure balance" in traditional cup lids, and avoiding "difficulty in absorbing liquid" or "liquid splashing" caused by air pressure imbalance. On the other hand, the locking function of the buckle 5 prevents the sliding component 2 from sliding accidentally, ensuring the sealing stability of the silicone component 4 to the water outlet channel 41 and the air inlet 42 in non-drinking conditions, initially solving the pain point of "easy to accidentally leak liquid" in traditional cup lids, and providing core structural support for subsequent detailed optimization.

[0041] In this embodiment, as Figure 1 , Figure 2 , Figure 3 As shown, an anti-slip component 3 is installed on the outer side of the main cover 1.

[0042] An anti-slip element 3 is installed on the outer side of the main cover 1. Utilizing the high coefficient of friction of materials such as silicone, the anti-slip element 3 increases the contact friction between the hand and the outer side of the main cover 1. When the user holds the main cover 1 to operate, disassemble, or install the sliding component 2, the anti-slip element 3 prevents relative sliding between the hand and the main cover 1, improving grip stability. This enhances operational safety and comfort. It also prevents slippage when the user holds the main cover 1 with wet hands, such as after washing or while drinking, preventing the main cover 1 from falling off and being damaged. Furthermore, it ensures precise force application during operations such as opening / closing the sliding component 2 and tightening the latch 5, making it especially suitable for children or the elderly, reducing operational difficulty and the risk of accidents.

[0043] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, the top of the main cover 1 is provided with a track groove 11, and the sides of the slider 2 are provided with grooves, and the slider 2 slides in the track groove 11.

[0044] The track groove 11 on the top of the main cover 1 provides a directional sliding path for the slider 2. The grooves on both sides of the slider 2 fit against the inner wall of the track groove 11, forming a "groove-convex" mating structure. This restricts the slider 2 to slide only along the length of the track groove 11, preventing lateral offset or misalignment during operation. This ensures the stability and accuracy of the slider 2's operation. It also prevents the "straw 21 from being unable to accurately align with the water outlet channel 41" due to offset of the sliding direction, ensuring reliable alignment or misalignment of the straw 21 with the water outlet channel 41 with each slide. This avoids leakage or drinking difficulties caused by misalignment, while extending the service life of the slider 2 and the track groove 11 on the main cover 1, and reducing component wear caused by misalignment friction.

[0045] Furthermore, such as Figure 1 , Figure 2 , Figure 3As shown, the inner wall of the track groove 11 is provided with strip-shaped protrusions, and the sliding member 2 slides with the track groove 11 through the transition fit between the strip-shaped protrusions and the groove.

[0046] Strip-shaped protrusions are set on the inner wall of the track groove to form a transition fit with the grooves on both sides of the sliding part. After assembly, a slight gap is left between the strip-shaped protrusions and the grooves to ensure smooth sliding and prevent loosening.

[0047] The sliding part 2 and the main cover track groove 11 are connected by a strip-shaped protrusion and a groove to ensure smooth sliding and prevent loosening. The simple opening method makes it easy to use. The water outlet channel 41 and the air inlet 42 on the silicone part are opened and closed synchronously through the position linkage of the sliding part 2.

[0048] When the straw 21 is misaligned with the water outlet channel 41, the elastic structure of the silicone part can simultaneously block the port of the water outlet channel 41 and the air inlet 42, forming a flexible seal to prevent the liquid in the cup from leaking out of the channel due to air pressure difference or tilting / inversion.

[0049] Furthermore, the sliding part 2 and the silicone part 4 are sealed by an interference fit. When the sliding part moves back and forth, the air inlet 42 opens when the straw 21 is aligned with the water outlet channel 41, and closes when the straw 21 is misaligned with the water outlet channel 41.

[0050] Furthermore, such as Figure 4 , Figure 6 As shown, the top of the main cover 1 is provided with a silicone part mounting port 13, and the water outlet channel 41 and air inlet 42 of the silicone part 4 are provided on the silicone part mounting port 13.

[0051] The silicone mounting port 13 at the top of the main cover 1 provides an independent assembly position for the silicone component 4. The silicone component 4 can be fixed in the silicone mounting port 13 by snapping or nesting. The water outlet channel 41 and the air inlet 42 correspond to the opening positions of the silicone mounting port 13, ensuring that liquid can smoothly enter the water outlet channel 41 through the silicone mounting port 13. At the same time, it facilitates the individual disassembly and installation of the silicone component 4, enabling independent maintenance and cleaning of the silicone component 4. This solves the problem of "many cleaning dead corners" in traditional integrated silicone sealing structures. Users can remove the silicone component 4 from the silicone mounting port 13 to thoroughly clean the inner wall of the water outlet channel 41, the air inlet 42, and other areas prone to dirt accumulation, preventing bacterial growth. In addition, if the silicone component 4 ages and is damaged, it can be replaced individually without replacing the entire main cover 1, reducing usage costs.

[0052] Furthermore, such as Figure 7 As shown, the fastener 5 has a locking plate 51 installed on both sides, and the main cover 1 has a locking opening 12 on the inner side. The fastener 5 passes through the locking opening 12 and extends into the slide groove 22, and rotates 90° to lock and limit the sliding member 2.

[0053] The locking plates 51 on both sides of the latching member 5 and the locking opening 12 on the inner side of the main cover 1 form a rotation locking structure. After the latching member 5 passes through the locking opening 12 and extends into the sliding groove 22 of the sliding member 2, it rotates 90° to make the locking plate 51 engage with the inner edge of the locking opening 12, restricting the axial pull-out of the latching member 5. In turn, the sliding stroke of the sliding member 2 is restricted by the blocking of the sliding groove 22 by the latching member 5. After rotating 90° in the opposite direction, the locking plate 51 and the edge of the locking opening 12 are misaligned, and the latching member 5 can be pulled out, releasing the restriction on the sliding member 2. This realizes the dual function of "lockable + detachable" for the sliding member 2. On the one hand, when locked, the extreme positions of the sliding part 2 can be fixed, such as the drinking position when the straw 21 is aligned with the water outlet channel 41, and the sealing position when it is misaligned, to prevent the sliding part 2 from sliding accidentally. On the other hand, after unlocking, the buckle 5 can be pulled out, so that the sliding part 2 can be removed from the track groove 11 of the main cover 1, which provides the possibility for thorough cleaning and maintenance of the sliding part 2 and eliminates the cleaning dead corners of the inner wall of the sliding part 2.

[0054] Furthermore, such as Figure 7 As shown, a silicone ring 6 is fitted onto the buckle 5.

[0055] The silicone ring 6 on the latching component 5 is fitted at the contact position between the latching component 5 and the latching opening 12 on the main cover 1. Utilizing the elastic deformation characteristics of the silicone ring 6, it fills the gap between the latching component 5 and the latching opening 12, while simultaneously enhancing the tightness of their fit and preventing liquid from seeping through the gap between the latching opening 12 and the latching component 5. This strengthens the sealing and wear resistance of the latching opening 12. It prevents liquid from seeping into the inside of the main cover 1 through the latching opening 12, avoiding moisture damage or bacterial growth on internal components. It also reduces the hard friction between the latching component 5 and the latching opening 12 during tightening, reducing component wear, extending the service life of the latching component 5, and ensuring the long-term stability and reliability of the locking structure.

[0056] Furthermore, such as Figure 7 As shown, a screw handle 52 is installed on the outer end of the buckle 5.

[0057] The rotating handle 52 at the outer end of the buckle 5 increases the hand grip area, providing a point of force for rotating the buckle 5. Users can easily rotate the buckle 5 by pinching the rotating handle 52 without directly contacting the main body of the buckle 5, reducing the difficulty of applying force. This improves the ease of operation of the buckle 5. It solves the problem of "difficult to rotate" in traditional handleless buckles, making it especially suitable for children, the elderly, or users with weak hand strength. Only a slight force is needed to pinch the rotating handle 52 to complete a 90° rotation to unlock or lock the buckle 5, while avoiding slippage or scratches caused by direct contact between the hand and the main body of the buckle 5 during rotation, thus improving the user experience.

[0058] The detachable sliding leak-proof straw cup lid of this utility model is used as follows:

[0059] I. Initial sealed state, non-drinking state

[0060] Structural state: At this time, the buckle 5 is in the locked state - the buckle 5 passes through the buckle opening 12 on the inner side of the main cover 1, extends into the slide groove 22 of the slider 2 and rotates 90°. The two side plates 51 engage with the inner edge of the buckle opening 12, restricting the slider 2 from sliding along the track groove 11. The slider 2 is in the initial position, and the straw 21 on it is completely offset from the water outlet channel 41 of the silicone part 4. The silicone part 4, with its own elastic structure, simultaneously blocks the port of the water outlet channel 41 and the air inlet 42. In addition, the strip-shaped protrusion on the inner wall of the track groove 11 cooperates with the grooves on both sides of the slider 2 to fill the sliding gap. The silicone ring 6 on the buckle 5 seals the gap between the buckle 5 and the buckle opening 12, forming a multiple seal.

[0061] Leak-proof principle: The water outlet channel 41 and the air inlet 42 are directly blocked by the silicone part 4, preventing liquid from entering the channel; the sliding gap and the buckle gap are sealed by the silicone ring 6 to prevent liquid from seeping out from the gap, so that even if the cup is inverted or squeezed, it can maintain a complete seal.

[0062] II. One-handed operation to start drinking mode

[0063] Unlocking the sliding restriction: The user holds the anti-slip part 3 on the outside of the main cover 1 with one hand and uses the high friction of the anti-slip part 3 to prevent slipping;

[0064] Sliding alignment channel: Push the slider 2 with your thumb to make it slide along the track groove 11 on the top of the main cover 1. The track groove 11 restricts the slider 2 to move only along the length direction to avoid misalignment. After sliding into place, insert the buckle 5 to lock and fix the slider 2.

[0065] Simultaneous opening of the channel and air hole: When the sliding part 2 touches the buckle 5, the straw 21 on it is precisely aligned with the water outlet channel 41 of the silicone part 4, and at the same time, the bottom of the sliding part 2 is removed from the obstruction of the air inlet 42 on the silicone part 4, and the air inlet 42 is automatically opened.

[0066] Drinking principle: The liquid can flow out along the path of "cup body → silicone part installation port 13 → water outlet channel 41 → straw 21" for the user to drink; at the same time, external air enters the cup through the air inlet 42 to balance the air pressure inside the cup and avoid "difficulty in drinking liquid" or "sudden splashing of liquid" caused by negative pressure, ensuring smooth drinking.

[0067] III. Single-handed reset after closing the seal

[0068] Reverse sliding reset: After drinking, the user still holds the anti-slip part 3 with one hand and pushes the slider 2 in the opposite direction with the thumb, so that it slides back to the initial position along the track groove 11;

[0069] Synchronous sealing of channels and air holes: As the slider 2 slides, the straw 21 and the water outlet channel 41 gradually become misaligned. The bottom of the slider 2 presses the corresponding area of ​​the silicone part 4 again. By utilizing the elastic deformation of the silicone part 4, the port of the water outlet channel 41 and the air inlet 42 are sealed simultaneously.

[0070] Restoring the sealing state: When the slider 2 returns to its initial position, the fit between the track groove 11 and the slider 2, the channel blockage of the silicone part 4, and the snap gap seal of the silicone ring 6 are all restored, and the cup lid re-enters a completely sealed state, making it safe to carry, such as putting it in a backpack.

[0071] IV. Disassembly, cleaning, and regular maintenance.

[0072] When a thorough cleaning of the inside of the lid or replacement of parts is required, disassembly can be performed using the following steps:

[0073] Unlocking the buckle: The user pinches the screw handle 52 at the outer end of the buckle 5 to increase the grip area, which is more convenient and less strenuous. The buckle 5 is rotated 90° so that the two side plates 51 are misaligned with the edge of the buckle opening 12 on the inner side of the main cover 1, thereby releasing the axial lock.

[0074] Pull out the buckle: Pull out the buckle 5 to disengage it from the buckle opening 12 and the slide groove 22 of the slider 2, thereby releasing the restriction on the slider 2;

[0075] Disassembling core components: Remove the slider 2 directly from the track groove 11 of the main cover 1. The inner wall of the slider 2 and the straw 21 can be cleaned separately. At the same time, remove the silicone part 4 from the silicone part installation port 13 and thoroughly clean the inner wall of the water outlet channel 41, the air inlet 42 and the surface of the silicone part 4.

[0076] Reassembly principle: After cleaning, assemble in reverse order - first put the silicone part 4 back into the silicone part mounting port 13, then insert the sliding part 2 into the track groove 11, and finally insert the buckle 5 through the buckle port 12 into the slide groove 22, rotate 90° to lock, and the cup lid can be restored to its function.

[0077] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable sliding leak-proof straw cup lid, comprising a main lid (1), characterized in that: A sliding member (2) is slidably disposed on the main cover (1). A silicone member (4) is disposed on the main cover (1) below the sliding member (2). A water outlet channel (41) and an air inlet (42) are provided on the silicone member (4). A straw (21) is installed on the sliding member (2). The sliding member (2) aligns or offsets the straw (21) with the water outlet channel (41) by sliding. When the straw (21) is aligned with the water outlet channel (41), the air inlet (42) is opened. When the straw (21) is offset from the water outlet channel (41), the air inlet (42) is closed. The sliding member (2) is locked on the main cover (1) by a buckle (5).

2. The detachable sliding leak-proof straw cup lid according to claim 1, characterized in that: The outer side of the main cover (1) is fitted with an anti-slip component (3).

3. The detachable sliding leak-proof straw cup lid according to claim 1, characterized in that: The top of the main cover (1) is provided with a track groove (11), and the sides of the slider (2) are provided with grooves, and the slider (2) slides in the track groove (11).

4. The detachable sliding leak-proof straw cup lid according to claim 3, characterized in that: The inner wall of the track groove (11) is provided with strip-shaped protrusions, and the sliding member (2) slides with the track groove (11) through the transition fit between the strip-shaped protrusions and the groove.

5. The detachable sliding leak-proof straw cup lid according to claim 1, characterized in that: The sliding member (2) and the silicone member (4) are sealed by an interference fit. When the sliding member moves back and forth, the air inlet (42) opens when the straw (21) is aligned with the water outlet channel (41) and closes when the straw (21) is misaligned with the water outlet channel (41).

6. The detachable sliding leak-proof straw cup lid according to claim 1, characterized in that: The top of the main cover (1) is provided with a silicone part mounting port (13), and the water outlet channel (41) and air inlet (42) of the silicone part (4) are provided on the silicone part mounting port (13).

7. The detachable sliding leak-proof straw cup lid according to claim 1, characterized in that: The buckle (5) has a buckle plate (51) installed on both sides, and the main cover (1) has a buckle opening (12) on the inner side. The buckle (5) passes through the buckle opening (12) and extends into the slide groove (22), and rotates 90° to lock and limit the sliding member (2).

8. The detachable sliding leak-proof straw cup lid according to claim 7, characterized in that: A silicone ring (6) is fitted onto the buckle (5).

9. The detachable sliding leak-proof straw cup lid according to claim 8, characterized in that: The outer end of the buckle (5) is equipped with a screw handle (52).

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