Dual-mode drinking opening cover body and heat preservation container

Abstract

The utility model discloses a dual-mode drinking opening cover body and a heat preservation container, and belongs to the technical field of drinking utensils. The opening cover body comprises an upper cover body and a lower cover body, a lower straw is arranged at the bottom of the lower cover body, and an upper integrated straw connecting hole and an annular diversion open drinking opening are formed in the lower cover body; the upper cover body is provided with a suction nozzle assembly, the tail end of an overturning suction pipe is installed in the spherical groove of the containing groove in an interference fit mode through a spherical connecting part, and a main water inlet through hole is formed. When the straw is vertically erected, the main water inlet through hole is communicated with the lower straw to form a straw channel; after the straw is folded, the drinking opening is exposed to form a direct drinking channel. A grasping part, an exhaust sealing structure and flow hierarchical control are further optimized; an exhaust port in the center of the lower cover body is matched with a sealing plug of the upper cover body to realize opening and closing sealing; multiple stages of auxiliary water inlets are longitudinally formed in the spherical connecting part, and flow is adjusted through different opening angles of the suction pipe by combining an arc-shaped through hole of the flow limiting plug. The double-mode self-adaptive drinking straw integrates a straw mode and a direct drinking mode, has flow self-adaption, and is suitable for the requirements of multiple scenes such as sports and offices.

Description

Technical Field

[0001] This utility model relates to the field of drinking container technology, specifically to a dual-mode drinking spout cap that can switch between straw and direct drinking modes, and an insulated container containing the dual-mode drinking spout, which is suitable for portable drinking utensils such as water cups and thermos cups. Background Technology

[0002] In the field of portable water dispensers, insulated containers (such as thermos flasks and cups) are frequently used products, and the functionality of their drinking spouts directly impacts the user experience. Traditional spout designs often employ a single drinking mode, relying solely on a fixed straw or direct drinking spout for hydration, which fails to meet the diverse needs of users in various scenarios such as exercise, office work, and in-car use. For example, while straw-type spouts facilitate sips, the exposed straw is prone to contamination and leakage when carried; direct drinking spouts offer good sealing, but require the entire lid to be opened for operation, making one-handed operation inconvenient and unsuitable for dynamic scenarios.

[0003] To address the limitations of a single mode, existing technologies have proposed a dual-mode cap design, but this design suffers from the following significant drawbacks:

[0004] 1. The mode switching mechanism is complex.

[0005] Some designs achieve function switching through detachable components (such as independent straw modules) or sliding structures, requiring users to manually disassemble or adjust parts, which is cumbersome and prone to component loss. While foldable straw designs simplify the switching process, they generally suffer from fixed unfolding angles (e.g., only supporting 90° or 180° unfolding) and reliance on elastic elements for resetting, making them susceptible to fatigue and wear after prolonged use, leading to functional failure. Furthermore, the protruding straw after folding occupies internal space in the lid, affecting storage convenience.

[0006] 2. Insufficient sealing and fluid control

[0007] Dual-channel lids need to integrate a straw channel and a direct drinking channel within a limited space, requiring high precision in structural fit. Existing solutions often suffer from leakage risks due to unreasonable sealing surface design (such as relying on friction for flat seals) or inappropriate material selection (such as insufficient deformation capacity of rigid plastics). When the straw is folded, the direct drinking spout lacks optimized flow guidance, and water impacting the cup wall can easily cause splashing; while the straw passage only has a single-diameter inlet, which cannot adapt to the flow rate requirements of users in different drinking postures (such as sitting, standing, and lying down), easily leading to choking or sucking out of the cup.

[0008] 3. Container compatibility limitations

[0009] Most of the matching cups use a cylindrical structure with a uniform diameter. Although this is simple to manufacture, it has problems such as inconvenience in nesting and storage (poor compatibility with car cup holders) and poor upright stability (large-capacity containers have a high center of gravity). Some improvement solutions optimize the grip by reducing the diameter of the lower cup, but this sacrifices the capacity utilization rate, and the transition area between the upper and lower cups is prone to becoming a cleaning dead zone.

[0010] Some improvements attempt to enhance functional integration through complex mechanical structures (such as spring-loaded nozzles and multi-channel switching valves), but this further sacrifices reliability. For example, flip-type nozzles rely on spring pressure to remain closed, and the spring force weakens after long-term use, leading to seal failure; channel switching valves are prone to liquid residue due to abrupt changes in the flow path (such as right-angle turns), which can breed bacteria and are difficult to clean.

[0011] In summary, existing dual-mode cap designs still exhibit significant contradictions in terms of functional integration, user experience, and reliability. Therefore, there is an urgent need to develop a dual-mode cap that combines high integration, intuitive operation, and reliable sealing, enabling stepless switching between straw and direct drinking modes through innovative structural design, optimizing fluid dynamics, and improving the overall compatibility of the container. Utility Model Content

[0012] This utility model provides a dual-mode drinking spout cap and insulated container, which aims to achieve seamless switching between straw and direct drinking modes, optimize the grip and operation experience, improve drinking safety through intelligent flow regulation, and take into account compact storage and sealing performance.

[0013] To solve the above-mentioned technical problems, this utility model provides a dual-mode drinking spout cap, including an upper cap and a lower cap. The upper cap is hinged to the lower cap via a hinge shaft to form an opening and closing structure that can rotate up and down.

[0014] The bottom of the lower cover is provided with a lower suction tube, and the upper part of the lower cover is provided with a suction tube connection hole and a drinking port with an annular flow guide opening structure.

[0015] The upper part of the cover is provided with a mouthpiece assembly, which includes a flip-up straw with a spherical connecting part and a mouthpiece cap. The spherical connecting part is installed in a spherical groove of a receiving groove provided on the upper part of the cover by interference fit, and is provided with a main water inlet hole. When the flip-up straw is upright, the main water inlet hole communicates with the lower straw to form a straw channel; when the flip-up straw is folded, the drinking spout forms a direct drinking channel.

[0016] In addition to the above-mentioned technical features, this application also makes improvements in the following aspects:

[0017] As a preferred technical solution of this application, the lower cover body is provided with a gripping part on its side, the gripping part having a fixed end and a free end; the fixed end of the gripping part is connected to the side wall of the lower cover body; the free end of the gripping part extends inward to form a limiting section; the inner surface of the gripping part is a conforming arc surface, and the outer surface is a groove surface.

[0018] As a preferred technical solution of this application, the receiving groove extends radially along the upper cover, and its outline matches the shape of the flip straw in its folded state; after folding, the upper surface of the flip straw is flush with the top surface of the upper cover.

[0019] As a preferred technical solution of this application, the flipping straw is provided with a protruding flipping handle on the side opposite to the receiving groove.

[0020] As a preferred technical solution of this application, the lower cover has an exhaust port at its center, and a sealing plug that can seal the exhaust port is provided on the bottom surface of the upper cover.

[0021] As a preferred technical solution of this application, the spherical connecting part is provided with a plurality of auxiliary water inlets, which are arranged longitudinally along the spherical surface and the diameter increases from top to bottom; when the main water inlet (441) is connected to the lower suction pipe (7), the auxiliary water inlets are in a closed state.

[0022] As a preferred technical solution of this application, a flow-limiting plug is provided in the straw connection hole. The flow-limiting plug is detachable and has a through hole in its center. The top is an arc-shaped surface that matches the spherical connection part. The curvature of the arc-shaped surface is the same as the spherical curvature of the auxiliary water inlet distribution area.

[0023] As a preferred technical solution of this application, the maximum diameter of the auxiliary inlet is less than or equal to the diameter of the through hole of the flow restrictor.

[0024] As a preferred technical solution of this application, the auxiliary water inlet is provided with three levels of aperture: small, medium and large, which correspond to the opening angles of the flipping suction tube of 30°, 45° and 60°, respectively.

[0025] When the straw is flipped 90° and stood upright, the main water inlet hole opens and connects with the lower straw.

[0026] In another aspect, this utility model also provides a heat-insulating container, including the aforementioned dual-mode drinking spout cap and a cup body threadedly connected to the spout cap. The cup body has a stepped structure that is larger at the top and smaller at the bottom, including an upper cup body and a lower cup body with different outer diameters.

[0027] By adopting the above technical solution, this utility model has at least one of the following beneficial effects:

[0028] 1. Dual-mode stepless switching and integrated design

[0029] The hinged upper and lower covers, combined with the spherical connector of the flip-up straw, allow for quick switching between straw and direct drinking modes. When the straw is upright, the main water inlet precisely aligns with the lower straw to form a sealed channel; when folded, it automatically switches to the direct drinking channel, eliminating the need for disassembly or complex operations and significantly improving the user experience. The spherical connector and the spherical groove of the receiving slot are connected with an interference fit, ensuring the stability of the straw when stored and avoiding the space-consuming protrusions of traditional folding straws, making it easy to carry and preventing external contamination.

[0030] 2. Fluid dynamics optimization and anti-choking design

[0031] The spherical connector features multiple auxiliary water inlets with increasing orifice diameters from top to bottom. Combined with the arc-shaped guide surface of the flow-limiting plug, this creates a dynamic flow regulation mechanism. When the straw is tilted at 30°, 45°, or 60° opening angles, the auxiliary water inlets guide water in stages, automatically adapting to the flow rate requirements of different drinking postures, avoiding choking or air suction caused by a single orifice diameter. In the upright position (90°), the main water inlet is fully open, ensuring a large flow rate for rapid drinking.

[0032] 3. Enhanced sealing and leak prevention

[0033] The hinged structure of the upper and lower covers, combined with the sealing plug assembly, forms a double seal when closed: the vent is tightly fitted to the lower cover via the sealing plug, thus preventing liquid leakage. The spherical groove design of the spherical connector reduces the fitting gap, maintaining sealing reliability even with frequent opening and closing over a long period, solving the problem of easy leakage in traditional dual-channel caps.

[0034] 4. Ergonomic fit and ease of operation

[0035] The gripping part adopts an L-shaped limiting structure and a conforming arc surface design, which conforms to the ergonomics of hand grip, making opening and closing operations effortless and stable; the surface of the flip straw after folding is flush with the top surface of the lid, avoiding the inconvenience of carrying caused by the protrusion of parts in traditional designs. The raised flip handle provides a clear operating fulcrum, allowing for easy one-handed switching of modes, which is especially suitable for sports, driving and other scenarios.

[0036] 5. Container structural innovation and stability improvement

[0037] The matching cup body adopts a stepped structure that is wider at the top and narrower at the bottom. While maintaining capacity, it lowers the center of gravity, significantly improving upright stability and avoiding the problem of large-capacity containers easily tipping over. The stepped design also optimizes nesting storage performance, adapting to scenarios such as car cup holders and improving space utilization. The ring-shaped open drinking spout optimizes the water flow path through a guide channel, reducing liquid splashing when drinking directly.

[0038] In summary, this utility model, through its core design of a hinged flip straw and dual-channel structure, integrates multi-level flow regulation and sealing and venting coordination control, solving the problems of traditional cup lids such as single function, cumbersome operation, and uncontrollable flow. It achieves significant improvements in portability, hygiene, and user experience, and is especially suitable for sports water bottles, baby products, and other scenarios. Attached Figure Description

[0039] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0040] Figure 1 This is a schematic diagram of the overall structure of the thermal insulation container of this utility model;

[0041] Figure 2 This is a schematic diagram showing the disassembled structure of the upper cover, lower cover, and cup body of this utility model;

[0042] Figure 3 This is a schematic diagram of the inverted straw in use according to this utility model;

[0043] Figure 4 This is a schematic diagram of the upper cover in the open state of this utility model;

[0044] Figure 5 This is a schematic diagram of the structure of the present invention, showing the combination of the flip-up straw and the lower straw after the upper cover is removed;

[0045] Figure 6 The schematic diagram of the auxiliary water inlet is shown in the spherical connecting part, which is the key feature of this utility model; wherein 6A is a schematic diagram of the auxiliary water inlet in the closed state; and 6B is a schematic diagram of the auxiliary water inlet in the open state.

[0046] Figure 7 This is a schematic diagram of the flow-limiting plug inserted into the straw connection port in this utility model;

[0047] Figure 8 This is a schematic diagram of the structure of the small auxiliary water inlet of the pot connected after the flipping straw is flipped 30° in this utility model;

[0048] Figure 9 This is a schematic diagram of the auxiliary water inlet in the kettle connected after the flipping straw is flipped 45° in this utility model.

[0049] Figure 10 This is a schematic diagram of the structure of the auxiliary water inlet in the pot after the flipping straw is flipped 60° in this utility model.

[0050] Figure 11This is a schematic diagram of the structure of the auxiliary water inlet in the pot after the flipping straw is flipped 90° in this utility model.

[0051] The numbers in the diagram are as follows:

[0052] 1. Cup body; 101. Upper cup body; 102. Lower cup body; 2. Lower lid; 3. Upper lid; 4. Nozzle assembly; 41. Flip-top straw; 42. Flip-top handle; 43. Nozzle cap; 44. Spherical connector; 441. Main water inlet; 442. Auxiliary water inlet; 45. Sealing plug; 5. Grip; 6. Locking assembly; 7. Lower straw; 8. Receiving groove; 9. Vent; 10. Straw connection hole; 11. Drinking spout; 12. Flow restrictor. Detailed Implementation

[0053] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present invention or its application or use. The present invention may be implemented in other different forms and is not limited to the embodiments described herein.

[0054] It should be noted that those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments without conflict. Unless otherwise defined, the technical or scientific terms involved in this invention should have the ordinary meaning understood by those skilled in the art to which this invention pertains.

[0055] The terms "a," "an," "a kind," "the," and similar words used in this utility model do not indicate quantity limitation and can represent singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this utility model are intended to cover non-exclusive inclusion; the terms "first," "second," "third," etc. used in this utility model are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0056] In the field of portable water dispenser technology, the traditional dual-mode cap design has three major flaws:

[0057] 1. Complex and inefficient mode switching: Most solutions rely on detachable components or mechanical sliding structures to switch between straw and direct drinking modes, which is cumbersome and parts are easy to lose; although the foldable straw design simplifies the process, the unfolding angle is fixed (such as only 90° or 180°) and the reset requires the support of elastic elements. With long-term use, the material fatigue can easily cause the unfolding to jam or fail to reset, and the straw protrudes outward after folding, which affects storage.

[0058] 2. Insufficient sealing and fluid control: The dual-channel integration requires high precision in the sealing surface. Existing planar sealing designs are prone to leakage due to insufficient deformation of hard plastic or uneven friction coefficient. The straw channel mostly uses a single-diameter inlet, which cannot adapt to the flow rate requirements of different drinking postures (such as lying down or exercising), which can easily cause choking or sucking out water. The direct drinking spout lacks optimized flow guiding structure, and water splashes when it impacts the cup wall.

[0059] 3. Conflict between container compatibility and reliability: Most of the compatible cups are cylindrical structures of equal diameter, leading to poor compatibility with car cup holders and instability in large-capacity containers. While narrowing the cup body in improved solutions enhances grip, it sacrifices capacity utilization and creates cleaning dead zones. Furthermore, the integration of complex functions (such as spring-loaded suction nozzles and multi-channel switching valves) exacerbates reliability risks: spring force decay leads to seal failure, right-angle bends in the flow channel result in residual liquid and bacterial growth, and maintenance costs are high.

[0060] The aforementioned issues have led to significant contradictions between the smoothness of function switching, user experience, and long-term reliability of existing dual-mode caps, necessitating structural innovation to achieve stepless switching, precise flow control, and highly compatible design.

[0061] Based on the above issues, referring to Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown in the figure, this embodiment provides a dual-mode drinking spout cap. The technical solution, working principle and technical effects of this utility model will be described in detail below with reference to specific embodiments.

[0062] The specific structure is as follows:

[0063] (I) Main structure: The upper cover 3 and the lower cover 2 are connected by a stainless steel hinge shaft to form an openable structure that can be flipped up and down. When closed, the upper cover 3 and the lower cover 2 are fixed by a locking assembly 6, which adopts a combination structure of a lock head and a latch to ensure sealing.

[0064] The bottom of the lower cover 2 is fixed with a soft silicone straw 7 that extends into the cup body 1; the upper part of the lower cover 2 is provided with a straw connection hole 10 (diameter 6mm) and a drinking spout 11 with an annular flow guide opening structure. The edge of the flow guide opening is designed with an arc-shaped flare to reduce liquid splashing.

[0065] The top of the upper cover 3 has a radially extending receiving groove 8, in which the suction nozzle assembly 4 is embedded. The suction nozzle assembly 4 includes a TPU flip-up straw 41 and a suction nozzle cap 43. The end of the flip-up straw 41 has a spherical connecting part 44, which is inserted into the spherical groove of the receiving groove 8 by interference fit (interference amount 0.2mm) to ensure a seal and allow rotation.

[0066] To facilitate flipping, the flipping straw 41 has a protruding flipping handle 42 on the side opposite to the receiving groove 8, which is used to open or fold the flipping straw 41.

[0067] (II) Mode Switching Function

[0068] Straw mode: such as Figure 11 As shown, the flipping straw 41 flips upward to a vertical position of 90°. At this time, the main water inlet hole 441 (diameter 4mm) of the spherical connector 44 is aligned with the lower straw 7 to form a closed straw channel. The liquid is output through the lower straw 7 and the main water inlet hole 441.

[0069] Direct drinking mode: Fold the flip straw 41 downward into the receiving slot 8, and the upper surface of the flip straw 41 is flush with the top surface of the upper cover 3.

[0070] With the top cover opened, the drinking spout 11 is fully exposed, allowing users to drink directly from the open spout.

[0071] (III) Auxiliary Function Components

[0072] Grip section 5: The lower cover 2 is integrally injection molded into an L-shaped grip section 5, with the fixed end connected to the side wall of the lower cover 2 and the free end bent inward to form a limiting section 231.

[0073] The inner side of the gripping part 5 is an arc-shaped surface that fits the fingers (radius of curvature 8mm), and the outer side is an anti-slip groove surface (groove depth 1.5mm, spacing 3mm).

[0074] (iv) Exhaust sealing structure:

[0075] The lower cover 2 has a 2mm diameter vent 9 in the center, and the upper cover 3 has a silicone sealing plug 45 fixed on the bottom surface.

[0076] When closed, the sealing plug 45 is pressed into the exhaust port 9 to achieve a seal; when opened, the sealing plug 45 is disengaged from the exhaust port 9 to balance the air pressure inside and outside the cup.

[0077] (V) Flow Classification Control

[0078] like Figure 6 , Figure 8 , Figure 9 , Figure 10 As shown, the spherical connecting part 44 has three auxiliary water inlets 442 along the longitudinal direction of the spherical surface, with apertures of 1mm (upper), 2mm (middle), and 3mm (lower), corresponding to opening angles of 30°, 45°, and 60° for the flipping suction tube 41.

[0079] like Figure 7 As shown, a TPE flow restrictor 12 is installed inside the suction pipe connection hole 10. The diameter of the central through hole 91 of the flow restrictor 12 is 3.5mm, and the curvature of the top arc surface is consistent with the spherical curvature of the distribution area of ​​the auxiliary water inlet 442.

[0080] When the flip-over suction tube 41 is opened to a specific angle, the corresponding auxiliary water inlet 442 and the through hole 91 of the flow restrictor 12 are completely or partially overlapped, thereby realizing graded flow regulation.

[0081] Example 2

[0082] (a) such as Figure 1 As shown, this embodiment provides a thermos container including the above-mentioned dual-mode drinking spout cover, and the cup body 1 adopts a double-layer stainless steel vacuum structure.

[0083] The outer wall features a stepped design: the upper cup body 101 has an outer diameter of 75mm, the lower cup body 102 has an outer diameter of 60mm, and the height of the stepped transition area is 15mm. The upper and lower cup bodies are a single unit. The upper cup body 101 has three M70 threads at its opening, which connect to the cap body via threads. A silicone sealing ring is added at the threaded connection. The total height of the cup body 1 is 220mm, with a capacity of 500mL, and a non-slip rubber base at the bottom.

[0084] Depending on specific requirements, the upper and lower cup bodies can also be separate structures. In this implementation, the upper and lower cup bodies are integrated into one piece.

[0085] (II) Usage Process

[0086] Straw mode: Press the gripping part 5 to unlock the top cover 3, flip the straw 41 to a vertical position, and the main water inlet 441 will be fully open, suitable for quick drinking.

[0087] Direct drinking mode: After folding and flipping the straw 41, you can drink directly through the flow opening 11, which is suitable for hot liquids (such as hot water) or scenarios that require rapid cooling.

[0088] Flow regulation:

[0089] When the inverted straw 41 is opened to 30°, the 1mm auxiliary water inlet 442 coincides with the through hole 91 of the flow restrictor 12, and the flow rate is about 10mL / s.

[0090] When the straw is flipped to 45°, the 2mm auxiliary inlet 442 is perfectly aligned with the through hole 91; the flow rate increases to 15mL / s.

[0091] When the inverted straw is rotated to 60°, the 3mm auxiliary inlet 442 is fully aligned with the through hole 91, and the flow rate increases to 25mL / s.

[0092] (III) Experimental Verification

[0093] Performance tests were conducted on the dual-mode drinking spout cap of Example 1:

[0094] Sealing test: Fill the cup with 50℃ hot water to the brim when closed, and invert for 24 hours without leakage (the sealing plug 45 and the vent 9 fit together effectively).

[0095] Flow control accuracy: When the flip pipe 41 is opened at 30°, 45° and 60°, the flow rates are 10±1mL / s, 15±2mL / s and 25±3mL / s respectively, which meets the expected design of the auxiliary inlet 442.

[0096] Example 3

[0097] This embodiment is a child safety mode, which is a further improvement on embodiment 1:

[0098] The auxiliary water inlet 442 has been optimized: the maximum diameter is limited to 2mm (originally 3mm), and the diameter of the main water inlet 441 has been reduced to 3mm, reducing the risk of choking when drinking quickly.

[0099] Child lock mechanism: The inside of the nozzle cap 43 is equipped with a buckle. When closed, the unlocking buttons on both sides must be pressed to open it, preventing children from accidentally opening it.

[0100] Lightweight cup body 1: Made of food-grade stainless steel (upper cup body 101 outer diameter 70mm, lower cup body 102 outer diameter 55mm), suitable for children's grip needs.

[0101] In summary, through the above embodiments, this utility model has the following core advantages over existing designs:

[0102] Seamless mode switching: The flip straw 41 and the direct drinking channel are independent and do not interfere with each other, and the switching operation is completed within 1 second.

[0103] Intelligent anti-choking: The 442 graded control of the auxiliary water inlet reduces the maximum flow rate to 15mL / s in child mode.

[0104] Compact and durable: The total height of the folded lid is only 35mm (the receiving slot 8 and the flip straw 41 are flush), which reduces the volume by 40% compared to the traditional dual-mode design; the hinge shaft has a lifespan of up to 50,000 opening and closing cycles.

[0105] Stepped cup body optimization: The enlarged design of the upper cup body 101 increases the thickness of the insulation layer to 5mm (3mm in the traditional design), and the measured hot water retention time at 95℃ is extended to 8 hours (an improvement of 25%).

[0106] To illustrate this application more clearly, the working principle of this utility model is explained below in conjunction with specific application scenarios:

[0107] The dual-mode drinking spout cap and insulated container of this utility model achieve seamless switching between straw and direct drinking modes, flow rate control, and sealing function based on the following technical principles:

[0108] 1. Dual-mode switching mechanism

[0109] (1) Straw mode:

[0110] When the flip straw 41 is flipped upwards to a vertical position (90°), the main water inlet hole 441 of its end ball-shaped connector 44 is completely aligned with the straw connection hole 10 of the lower cover 2 and the lower straw 7, forming a closed fluid channel. Liquid enters the straw connection hole 10 through the lower straw 7, and is then transported to the flip straw 41 for output through the main water inlet hole 441, realizing closed-loop straw drinking.

[0111] (2) Direct drinking mode:

[0112] The flip-top straw 41 is folded downwards and stored in the receiving slot 8, with its surface flush with the top surface of the upper cover 3. At this point, the drinking spout 11 of the lower cover 2 is fully exposed. The user can drink the liquid directly through the annular guide opening structure 221, where the liquid spreads evenly along the guide opening, reducing splashing.

[0113] (3) Synergistic effect of key components:

[0114] The spherical connector 44 is inserted into the spherical groove of the receiving groove 8 through an interference fit to ensure sealing during rotation; the hinge shaft enables the upper cover 3 to flip stably, and the locking assembly 6 is fixed and sealed in the closed state.

[0115] 2. Intelligent Flow Classification Control Principle

[0116] (1) Angle-aperture matching design:

[0117] The spherical connector 44 has three auxiliary water inlets 442 distributed longitudinally along the spherical surface, with apertures of 1mm (small), 2mm (medium), and 3mm (large), corresponding to the opening angles of the flipping straw 41 at 30°, 45°, and 60°.

[0118] (2) Dynamic adjustment of the flow restrictor:

[0119] A flow-limiting plug 12 is installed inside the straw connection hole 10. Its central through-hole 91 has a diameter of 3.5 mm, and the curvature of its top arc surface matches the spherical curvature of the area where the auxiliary inlet 442 is distributed. When the inverted straw 41 is opened to a specific angle, the corresponding auxiliary inlet 442 and the through-hole 91 of the flow-limiting plug 12 partially or completely overlap. The flow rate is controlled by adjusting the overlapping area.

[0120] 30° opening: The 1mm auxiliary inlet 442 partially overlaps with the through hole 91, with a flow rate of approximately 10mL / s;

[0121] 45° opening: The 2mm auxiliary inlet 442 is fully aligned with the through hole 91, and the flow rate is increased to 15mL / s;

[0122] 60° opening: The 3mm auxiliary inlet 442 is fully aligned with the through hole 91, and the flow rate is increased to 25mL / s;

[0123] 90° upright: Main water inlet 441 fully open (diameter 4mm), flow rate up to 30mL / s.

[0124] (3) Technological advantages:

[0125] By limiting the flow rate from a physical angle and classifying the orifice size, adaptive flow regulation without electronic devices is achieved; in child mode (Example 3), the maximum orifice size of the auxiliary water inlet 442 is limited to 2mm, which forcibly reduces the risk of rapid drinking.

[0126] 3. Sealing and venting balance mechanism

[0127] Leak-proof sealing: When the upper cover 3 is closed, the sealing plug 45 at its bottom is pressed into the vent 9 in the center of the lower cover 2, and the airtightness is achieved by the elastic deformation of the silicone to prevent liquid leakage.

[0128] Pressure balance: When the upper cover 3 is opened, the sealing plug 45 is disengaged from the exhaust port 9, and external air enters the cup body 1 through the exhaust port 9, eliminating negative pressure obstruction and ensuring smooth liquid output.

[0129] 4. Human-computer interaction optimization design

[0130] (1) Anti-slip gripping part 5: The inner arc surface of the L-shaped structure of gripping part 5 fits the fingers, and the outer groove surface increases friction.

[0131] (2) Stability of stepped cup body 1: The outer diameter of the upper cup body 101 is larger than that of the lower cup body 102, which lowers the overall center of gravity and expands the contact area between the mouth and the lid, improving sealing and grip stability.

[0132] 5. Child safety protection logic (Example 3)

[0133] Forced flow limit: The maximum diameter of the auxiliary water inlet 442 is reduced to 2mm, and the diameter of the main water inlet 441 is reduced to 3mm, ensuring that the maximum flow rate in child mode is ≤15mL / s;

[0134] Child lock mechanism: The inside of the nozzle cap 43 is equipped with a double-button buckle, which requires pressing both sides at the same time to unlock, preventing children from accidentally opening it with one hand.

[0135] In summary, this utility model achieves seamless switching between dual modes, intelligent flow regulation, and highly reliable sealing through mechanical structural innovation (curvature matching between the spherical connecting part 44 and the flow restrictor 12, and graded design of the auxiliary water inlet 442) and application of physical principles (pressure balance and angle-flow correlation). At the same time, it optimizes human-computer interaction and safety, meeting the drinking needs of multiple scenarios.

[0136] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0137] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A dual-mode drinking spout cap, characterized in that, include: The upper cover (3) and the lower cover (2) are hinged to the lower cover (2) via a hinge shaft to form an opening and closing structure that can rotate up and down; The bottom of the lower cover (2) is provided with a lower suction tube (7), and the upper part of the lower cover (2) is provided with a suction tube connection hole (10) and a drinking mouth (11) with an annular flow guiding open structure; The upper part of the upper cover (3) is provided with a suction nozzle assembly (4). The suction nozzle assembly includes a flip-up suction tube (41) with a spherical connecting part (44) and a suction nozzle cap (43). The spherical connecting part (44) is installed in the spherical groove of the receiving groove (8) provided on the upper part of the upper cover by interference fit, and is provided with a main water inlet hole (441). When the inverted straw (41) is upright, the main water inlet (441) and the lower straw (7) are connected to form a straw channel; when the inverted straw (41) is folded, the drinking port (11) forms a direct drinking channel.

2. The dual-mode drinking spout cap according to claim 1, characterized in that: The lower cover (2) is provided with a gripping part (5) on its side. The gripping part (5) is provided with a fixed end and a free end. The fixed end of the gripping part (5) is connected to the side wall of the lower cover. The free end of the gripping part (5) extends inward to form a limiting section. The inner surface of the gripping part (5) is a fitted arc surface, and the outer surface is a groove surface.

3. The dual-mode drinking spout cap according to claim 2, characterized in that: The receiving groove (8) extends radially along the upper cover, and its outline matches the shape of the flip-over straw (41) in the folded state; after folding, the upper surface of the flip-over straw (41) is flush with the top surface of the upper cover.

4. The dual-mode drinking spout cap according to claim 3, characterized in that: The flipping straw (41) has a protruding flipping handle (42) on the side opposite to the receiving groove (8).

5. The dual-mode drinking spout cap according to claim 2, characterized in that: The lower cover (2) has an exhaust port (9) at its center, and a sealing plug (45) is provided on the bottom surface of the upper cover to seal the exhaust port (9).

6. The dual-mode drinking spout cap according to claim 5, characterized in that: The spherical connecting part (44) is provided with a number of auxiliary water inlets (442), which are arranged longitudinally along the spherical surface and the diameter increases from top to bottom; when the main water inlet (441) is connected to the lower suction pipe (7), the auxiliary water inlets are in a closed state.

7. The dual-mode drinking spout cap according to claim 6, characterized in that: The suction pipe connection hole (10) is provided with a flow restrictor (12), the flow restrictor is detachable, and the center of the flow restrictor is provided with a through hole; the top is an arc surface that matches the spherical connection part; the curvature of the arc surface is the same as the spherical curvature of the auxiliary water inlet distribution area.

8. The dual-mode drinking spout cap according to claim 7, characterized in that: The maximum diameter of the auxiliary inlet (442) is less than or equal to the diameter of the through hole of the flow restrictor.

9. The dual-mode drinking spout cap according to claim 7, characterized in that: The auxiliary water inlet is equipped with three levels of aperture: small, medium and large, which correspond to the opening angles of the flip-over suction tube at 30°, 45° and 60°, respectively. When the straw is flipped 90° and upright, the main water inlet hole (441) opens and connects with the lower straw.

10. A thermal insulation container, characterized in that: Includes the dual-mode drinking spout cap body as described in any one of claims 1-9 and a cup body (1) threadedly connected to the spout cap body; the cup body has a stepped structure with a larger upper part and a smaller lower part, including an upper cup body (101) and a lower cup body (102) with different outer diameters.

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