Dual-mode drinking opening cover body and heat preservation container

Abstract

The invention 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 straw and direct drinking dual modes are integrated, flow self-adaption is achieved, and the requirements of multiple scenes such as sports and offices are met.

Description

Technical Field

[0001] The present invention relates to the technical field of drinking containers, and in particular to a dual-mode drinking port cover body capable of switching between a straw mode and a direct drinking mode, and a heat preservation container comprising the dual-mode drinking port, which is suitable for portable drinking utensils such as water cups and heat preservation cups. Background Art

[0002] In the field of portable drinking utensils, insulated containers (such as thermos pots, thermos cups, etc.) are high-frequency daily use products, and the functionality of their drinking lids directly affects the user experience. Traditional lid designs mostly adopt a single drinking mode, that is, the drinking function is only achieved through a fixed straw or direct drinking spout, which is difficult to meet the diverse needs of users in different scenarios such as sports, office, and car. For example, although the straw-type lid is convenient for sipping, the exposed straw is easily contaminated and prone to leakage when carried; the direct drinking lid has good sealing, but the lid must be fully opened for operation, which is inconvenient to operate with one hand and cannot be adapted to dynamic scenes.

[0003] In view of the limitation of a single mode, the prior art proposes a dual-mode cover design, but it has the following significant defects:

[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. Users need to manually disassemble or adjust parts, which is cumbersome and easy to cause parts to be lost. Although the folding straw design simplifies the switching process, there are common problems such as fixed expansion angles (such as only supporting 90° or 180° expansion) and reliance on elastic elements for reset. After long-term use, fatigue and wear may lead to functional failure. In addition, after folding, the protrusion of the straw occupies the internal space of the lid, affecting the convenience of storage.

[0006] 2. Insufficient sealing and fluid control

[0007] The dual-channel mouth cover needs to integrate the straw channel and the direct drinking channel in a limited space, and the structural matching accuracy is high. Most existing solutions lead to the risk of liquid leakage due to unreasonable sealing surface design (such as flat sealing relying on friction) or improper material selection (such as insufficient deformation of hard plastic). When the straw is folded, the direct drinking port lacks optimization of the diversion structure, and the water flow hitting the cup wall can easily cause splashing; and the straw passage only has a single-aperture water inlet, which cannot adapt to the flow rate requirements of users in different drinking postures (such as sitting, standing, lying down), which can easily lead to choking or air inhalation.

[0008] 3. Container adaptability limitations

[0009] The matching cup body mostly adopts an equal-diameter cylindrical structure. Although it is easy to process, it has problems such as inconvenient nesting and storage (such as poor adaptability to car cup holders) and poor upright stability (the center of gravity of large-capacity containers is too high). Some improvement plans optimize the grip experience by reducing the diameter of the lower cup body, but at the expense of capacity utilization, and the transition area between the upper and lower cup bodies is prone to forming a cleaning dead corner.

[0010] Some improvements attempt to improve functional integration through complex mechanical structures (such as spring-clip nozzles and multi-channel switching valves), but this further sacrifices reliability. For example, the flip nozzle relies on spring pressure to remain closed, and after long-term use, the elastic force decays and causes seal failure; the channel switching valve is prone to residual liquid due to sudden changes in the flow channel (such as right-angle turns), which breeds bacteria and is difficult to clean.

[0011] In summary, the existing dual-mode lid design still has significant contradictions in terms of functional integration, user experience, reliability, etc. Therefore, it is urgent to develop a dual-mode lid body with high integration, intuitive operability and reliable sealing, to achieve stepless switching between straw and direct drinking mode through innovative structural design, optimize fluid dynamics characteristics, and improve the overall adaptability of the container. Summary of the invention

[0012] On the one hand, the present invention provides a dual-mode drinking port cover and a thermal insulation container, aiming to achieve seamless switching between straw and direct drinking modes, optimize the holding and operating experience, improve drinking safety through intelligent flow regulation, and take into account compact storage and sealing performance.

[0013] In order to solve the above technical problems, the present invention provides a dual-mode drinking port cover body, comprising: an upper cover body and a lower cover body, wherein the upper cover body is hinged to the lower cover body through a hinge shaft to form an opening and closing structure that can rotate up and down.

[0014] The bottom of the lower cover body is provided with a lower suction pipe, and the upper part of the lower cover body is provided with a suction pipe connecting hole and a drinking port with an annular flow-guiding open structure.

[0015] A suction nozzle assembly is arranged on the upper part of the upper cover body, and the suction nozzle assembly includes a flip straw with a spherical connection part and a suction nozzle cap. The spherical connection part is installed in the spherical groove of the receiving groove arranged on the upper part of the upper cover body through interference fit, and is provided with a main water inlet through hole.

[0016] When the flip straw is vertically erected, the main water inlet through hole is connected with the lower straw to form a straw channel; when the flip straw is folded, the drinking port forms a direct drinking channel.

[0017] In addition to the above technical features, this application also makes improvements in the following aspects:

[0018] As a preferred technical solution of the present application, a gripping portion is provided on the side of the lower cover body, and the gripping portion is provided with a fixed end and a free end; the fixed end of the gripping portion is connected to the side wall of the lower cover body; the free end of the gripping portion extends inwardly to form a limiting section; the inner side surface of the gripping portion is a fitting arc surface, and the outer side surface is a groove surface.

[0019] As a preferred technical solution of the present application, the accommodating groove extends radially along the upper cover body, and its contour matches the outer shape of the flip straw in a folded state; after folding, the upper surface of the flip straw is flush with the top surface of the upper cover body.

[0020] As a preferred technical solution of the present application, a raised flip handle is provided on the side of the flip straw facing away from the receiving groove.

[0021] As a preferred technical solution of the present application, an exhaust port is provided at the center of the lower cover body, and a sealing plug capable of sealing the exhaust port is provided at the corresponding bottom surface of the upper cover body.

[0022] As a preferred technical solution of the present application, the spherical connecting portion is provided with a plurality of auxiliary water inlets, which are arranged longitudinally along the spherical surface and whose apertures increase from top to bottom; when the main water inlet through hole (441) is connected to the lower suction pipe (7), the auxiliary water inlets are in a closed state.

[0023] As a preferred technical solution of the present application, a flow limiting plug is provided in the straw connecting hole, the flow limiting plug is detachable, and a through hole is provided in the center of the flow limiting plug; the top is an arcuate surface matching the spherical connecting part; the curvature of the arcuate surface is the same as the spherical curvature of the auxiliary water inlet distribution area.

[0024] As a preferred technical solution of the present application, the maximum aperture of the auxiliary water inlet is smaller than or equal to the aperture of the through hole of the flow limiting plug.

[0025] As a preferred technical solution of the present application, the auxiliary water inlet is provided with three levels of apertures: small, medium and large, corresponding to the opening angles of the flip straw of 30°, 45° and 60° respectively.

[0026] When the suction pipe is turned over 90 degrees and stands upright, the main water inlet through hole is opened and communicated with the lower suction pipe.

[0027] Another aspect of the present invention provides a heat preservation container, comprising the above-mentioned dual-mode drinking mouth cover body and a cup body threadedly connected to the mouth cover body. The cup body has a stepped structure with a larger upper part and a smaller lower part, and comprises an upper cup body and a lower cup body with different outer diameters.

[0028] By adopting the above technical solution, the present invention has at least one of the following beneficial effects:

[0029] 1. Dual-mode stepless switching and integrated design

[0030] Through the cooperation of the hinged upper cover and the lower cover, combined with the spherical connection structure of the flip suction nozzle, the rapid switching between the straw mode and the direct drinking mode can be achieved. When the flip straw stands vertically, the main water inlet hole and the lower straw are precisely connected to form a closed channel; after folding, it automatically switches to the direct drinking channel without the need to disassemble parts or perform complicated operations, which significantly improves the user experience. The spherical connection part and the spherical groove of the receiving groove are connected by interference fit to ensure the stability of the suction nozzle storage, avoid the problem of the bulge occupying space of the traditional folding straw, and are easy to carry and prevent external contamination.

[0031] 2. Fluid dynamics optimization and anti-choking design

[0032] The spherical connection part is equipped with multi-level auxiliary water inlets, with the aperture increasing from top to bottom, and cooperates with the arc-shaped guide surface of the flow limiting plug to form a dynamic flow adjustment mechanism. When the flip straw is at an opening angle of 30°, 45°, and 60°, the auxiliary water inlet guides water in stages, automatically adapting to the flow rate requirements under different drinking postures, avoiding choking or emptying caused by a single aperture; in the upright state (90°), the main water inlet hole is fully open to ensure fast drinking of large flow.

[0033] 3. Sealing and anti-leakage enhancement

[0034] The hinged structure of the upper cover and the lower cover cooperates with the sealing plug assembly to form a double seal in the closed state: the exhaust port fits tightly with the lower cover through the sealing plug to prevent liquid leakage. The spherical groove design of the spherical connection reduces the matching gap, and the sealing reliability is maintained even if it is frequently opened and closed for a long time, solving the problem of easy leakage of traditional double-channel cover.

[0035] 4. Ergonomic fit and ease of operation

[0036] The grip part adopts an L-shaped limit structure and a fitting arc surface design, which conforms to the hand grip mechanics, and the opening and closing operation is effortless and stable; the surface of the folded flip straw is flush with the top surface of the upper cover, avoiding the inconvenience of carrying caused by the raised parts of the traditional design. The raised flip handle provides a clear operating fulcrum, allowing easy switching of modes with one hand, which is especially suitable for sports, driving and other scenes.

[0037] 5. Container structure innovation and stability improvement

[0038] The matching cup body adopts a stepped structure with a large top and a small bottom, which lowers the center of gravity while maintaining the capacity, significantly improves the upright stability, and avoids the problem of large-capacity containers being easily tipped over. The stepped design also optimizes the nesting storage performance, adapts to scenarios such as car cup holders, and improves space utilization. The annular diversion open drinking spout optimizes the water flow path through the diversion groove to reduce liquid splashing when drinking directly.

[0039] To summarize, the present invention, through the core design of an articulated flip straw + dual-channel structure, integrates multi-stage flow regulation and sealed exhaust coordinated control, solves the problems of traditional cup lids with single function, cumbersome operation, and uncontrollable flow, and achieves significant improvements in portability, hygiene, and user experience, and is particularly suitable for scenarios such as sports water cups, maternal and child products, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0041] Figure 1 It is a schematic diagram of the overall structure of the heat preservation container of the present invention;

[0042] Figure 2 This is a schematic diagram of the disassembled structure of the upper cover body, the lower cover body and the cup body of the present invention;

[0043] Figure 3 This is a schematic diagram of the structure of the flip straw in the present invention when it is in use;

[0044] Figure 4 This is a schematic diagram of the structure of the upper cover body in the open state in the present invention;

[0045] Figure 5 It is a schematic diagram of the structure of the flip straw and the lower straw combined for use after the upper cover body is removed in the present invention;

[0046] Figure 6 The schematic diagram of the structure of the spherical connection part in the present invention is mainly used to set the auxiliary water inlet; 6A is a schematic diagram of the structure of the auxiliary water inlet in a closed state; 6B is a schematic diagram of the structure of the auxiliary water inlet in an open state;

[0047] Figure 7 This is a schematic diagram of a structure in which a flow limiting plug is inserted into the connecting port of the straw in the present invention;

[0048] Figure 8 It is a structural schematic diagram of the connection state of the small auxiliary water inlet of the kettle after the flip straw is flipped 30 degrees in the present invention;

[0049] Fig. 9 It is a structural schematic diagram of the auxiliary water inlet in the kettle being connected after the flip straw is flipped 45 degrees in the present invention;

[0050] Fig.10 It is a structural schematic diagram of the auxiliary water inlet in the kettle being connected after the flip straw is flipped 60 degrees in the present invention;

[0051] Fig.11 It is a structural schematic diagram of the connected state of the auxiliary water inlet in the kettle after the flip straw is flipped 90 degrees in the present invention.

[0052] The numbers in the figure are as follows:

[0053] 1. Cup body; 101. Upper cup body; 102. Lower cup body; 2. Lower cover body; 3. Upper cover body; 4. Suction nozzle assembly; 41. Flip straw; 42. Flip handle; 43. Suction nozzle cap; 44. Spherical connecting part; 441. Main water inlet hole; 442. Auxiliary water inlet; 45. Sealing plug; 5. Gripping part; 6. Locking assembly; 7. Lower suction straw; 8. Receiving groove; 9. Exhaust port; 10. Suction straw connecting hole; 11. Drinking port; 12. Flow limiting plug. DETAILED DESCRIPTION

[0054] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is by no means intended to limit the present invention and its application or use. The present invention can be implemented in other different forms and is not limited to the embodiments described herein.

[0055] It should be noted that those skilled in the art explicitly and implicitly understand that the embodiments described in the present invention can be combined with other embodiments without conflict. Unless otherwise defined, the technical terms or scientific terms involved in the present invention should have the common meanings understood by people with ordinary skills in the technical field to which the present invention belongs.

[0056] The words "a", "an", "a", "the" and the like involved in the present invention do not indicate quantity limitation and may indicate singular or plural. The terms "include", "comprises", "has" and any variations thereof involved in the present invention are intended to cover non-exclusive inclusions; the terms "first", "second", "third" and the like involved in the present invention are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0057] In the field of portable drinking water equipment technology, the traditional dual-mode lid design has three core defects:

[0058] 1. Mode switching is complex and inefficient: Most solutions rely on detachable components or mechanical sliding structures to switch between straw and direct drinking modes. The operation 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 support from elastic elements. Long-term use may cause the unfolding to become stuck or unable to reset due to material fatigue, and the straw bulges outward after folding, affecting storage.

[0059] 2. Insufficient sealing and fluid control: Dual-channel integration leads to high requirements for sealing surface matching accuracy. The existing flat sealing design is prone to leakage due to insufficient deformation of hard plastics or uneven friction coefficient. The straw channel mostly uses a single-aperture water inlet, which cannot adapt to the flow rate requirements of different drinking postures (such as lying down, exercising), and can easily cause choking or emptying. The direct drinking port lacks optimized diversion structure, and the water flow impacts the cup wall and causes splashing.

[0060] 3. Conflict between container adaptability and reliability: The matching cup bodies are mostly equal-diameter cylindrical structures, which have problems such as poor adaptability to car cup holders and unstable center of gravity of large-capacity containers; although the improvement plan narrows the lower cup body to improve the grip, it sacrifices capacity utilization and forms a cleaning dead corner. In addition, the integration of complex functions (such as spring clip-on suction nozzles and multi-channel switching valves) exacerbates reliability risks: the attenuation of spring elastic force leads to sealing failure, and the residual liquid at the right-angle turn of the flow channel breeds bacteria, which has high maintenance costs.

[0061] The above problems lead to significant contradictions between the smoothness of function switching, user experience and long-term reliability of the existing dual-mode mouth cover, and it is urgent to achieve stepless switching, precise flow control and high compatibility design through structural innovation.

[0062] Based on the above problems, refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, this embodiment provides a dual-mode drinking port cover body. The technical solution, working principle and technical effect of the present invention are described in detail below in conjunction with specific embodiments.

[0063] The specific structure is as follows:

[0064] (I) Main structure: The upper cover 3 and the lower cover 2 are connected by a stainless steel hinge shaft to form an opening and closing structure that can be turned upside 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 lock buckle to ensure sealing.

[0065] A soft lower straw 7 made of silicone is fixed to the bottom of the lower cover 2 and extends to the inside of the cup body 1; a straw connecting hole 10 (6 mm in diameter) and a drinking port 11 with an annular guide opening structure are provided on the upper part of the lower cover 2, and the edge of the guide opening is designed with an arc-shaped expansion to reduce liquid splashing.

[0066] The top of the upper cover 3 is provided with a radially extending receiving groove 8, into which the nozzle assembly 4 is embedded. The nozzle assembly 4 includes a flip straw 41 made of TPU material and a nozzle cap 43. A spherical connecting portion 44 is provided at the end of the flip straw 41. The spherical connecting portion 44 is embedded in the spherical groove of the receiving groove 8 by interference fit (interference amount 0.2mm), ensuring sealing and rotatability.

[0067] In order to facilitate flipping, a raised flip handle 42 is provided on the side of the flip straw 41 facing away from the receiving groove 8 for opening or folding the flip straw 41 .

[0068] (II) Mode switching function

[0069] Eyedropper mode: Fig.11As shown, the flip straw 41 flips upward to a vertical state of 90°, at which time the main water inlet hole 441 (diameter 4 mm) of the spherical connecting part 44 is aligned with the lower straw 7 to form a closed straw channel, and the liquid is output through the lower straw 7 via the main water inlet hole 441.

[0070] Direct drinking mode: fold the flip straw 41 downward into the receiving groove 8 , and the upper surface of the flip straw 41 is flush with the top surface of the upper cover 3 .

[0071] When the upper cover is opened, the drinking opening 11 is completely exposed, and the user can drink directly through the open opening.

[0072] (III) Auxiliary function components

[0073] Gripping portion 5: The L-shaped gripping portion 5 is integrally formed by injection molding at the side of the lower cover body 2, with a fixed end connected to the side wall of the lower cover body 2 and a free end bent inwardly to form a limiting section 231.

[0074] The inner side of the gripping portion 5 is an arc-shaped surface (with a curvature radius of 8 mm) that fits the finger, and the outer side is an anti-slip groove surface (with a groove depth of 1.5 mm and a spacing of 3 mm).

[0075] (IV) Exhaust sealing structure:

[0076] An exhaust port 9 with a diameter of 2 mm is provided at the center of the lower cover body 2 , and a silicone sealing plug 45 is fixed to the bottom surface of the upper cover body 3 .

[0077] When closed, the sealing plug 45 is pressed into the exhaust port 9 to achieve sealing; when opened, the sealing plug 45 is separated from the exhaust port 9 to balance the air pressure inside and outside the cup.

[0078] (V) Flow classification control

[0079] like Figure 6 , Figure 8 , Fig. 9 , Fig.10 As shown, the spherical connecting portion 44 has three auxiliary water inlets 442 along the longitudinal direction of the spherical surface, with apertures of 1 mm (upper), 2 mm (middle), and 3 mm (lower), respectively, corresponding to the opening angles of the flip straw 41 of 30°, 45°, and 60°.

[0080] like Figure 7 As shown, a TPE flow limiting plug 12 is installed in the straw connecting hole 10 , the central through hole 91 of the flow limiting plug 12 has a diameter of 3.5 mm, and the curvature of the top arc surface is consistent with the spherical curvature of the auxiliary water inlet 442 distribution area.

[0081] When the flip straw 41 is opened to a specific angle, the corresponding auxiliary water inlet 442 completely or partially overlaps with the through hole 91 of the flow limiting plug 12, thereby achieving graded flow regulation.

[0082] Example 2

[0083] (a) If Figure 1 As shown, this embodiment provides a heat-insulating container including the above-mentioned dual-mode drinking mouth cover body, and the cup body 1 adopts a double-layer stainless steel vacuum structure.

[0084] The outer wall is designed in a stepped style: the outer diameter of the upper cup body 101 is 75mm, the outer diameter of the lower cup body 102 is 60mm, and the height of the stepped transition area is 15mm. The upper cup body and the lower cup body are an integrated structure, and the mouth of the upper cup body 101 is provided with a thread M70×3, which is threadedly connected to the mouth cover body, and a silicone sealing ring is added at the thread matching. The total height of the cup body 1 is 220mm, the capacity is 500mL, and the bottom is provided with a non-slip rubber base.

[0085] Based on specific needs, the upper cup body and the lower cup body may also adopt a separate structure. In this embodiment, the upper cup body and the lower cup body adopt an integrated structure.

[0086] (II) Usage process

[0087] Straw mode: Press the gripping portion 5 to unlock the upper cover 3, flip the straw 41 to a vertical state, and fully open the main water inlet hole 441, which is suitable for quick drinking.

[0088] Direct drinking mode: After folding and flipping the straw 41, drinking can be done directly through the diversion opening 11, which is suitable for high-temperature liquids (such as hot water) or scenes that require rapid cooling.

[0089] Flow regulation:

[0090] When the inverted straw 41 is opened to 30°, the 1 mm auxiliary water inlet 442 coincides with the through hole 91 of the flow limiting plug 12, and the flow rate is about 10 mL / s;

[0091] When the straw is turned to 45°, the 2 mm auxiliary water inlet 442 is completely aligned with the through hole 91; the flow rate is increased to 15 mL / s;

[0092] When the flip straw is flipped to 60°, the 3 mm auxiliary water inlet 442 is completely aligned with the through hole 91, and the flow rate is increased to 25 mL / s.

[0093] (III) Experimental verification

[0094] The performance test of the dual-mode drinking opening cover body of Example 1 is as follows:

[0095] Sealing test: In the closed state, pour 50°C hot water until the cup is full, and turn it upside down for 24 hours without leakage (the sealing plug 45 and the exhaust port 9 cooperate effectively).

[0096] Flow control accuracy: when the flip straw 41 is opened at an angle of 30°, 45°, and 60°, the flow rates are 10±1mL / s, 15±2mL / s, and 25±3mL / s, respectively, which is in line with the expected graded design of the auxiliary water inlet 442.

[0097] Example 3

[0098] This embodiment is a child safety mode, which is further improved on the basis of embodiment 1:

[0099] The auxiliary water inlet 442 is optimized: the maximum aperture is limited to 2mm (originally 3mm), and the diameter of the main water inlet hole 441 is reduced to 3mm, reducing the risk of choking when drinking quickly.

[0100] Child lock structure: A buckle is arranged on the inner side of the nozzle cover cap 43. When closing, the unlocking buttons on both sides need to be pressed to open it, so as to prevent children from opening it by mistake.

[0101] Lightweight cup body 1: Made of food-grade stainless steel (the outer diameter of the upper cup body 101 is 70 mm, and the outer diameter of the lower cup body 102 is 55 mm), it is suitable for children to hold.

[0102] In summary, through the above embodiments, the present invention has the following core advantages over the existing designs:

[0103] 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.

[0104] Intelligent anti-choking: The 442 graded control of the auxiliary water inlet reduces the maximum flow rate to 15mL / s in children's mode.

[0105] Compact and durable: When folded, the total height of the lid is only 35mm (the receiving groove 8 and the flip straw 41 are designed to be flush), which reduces the volume by 40% compared with the traditional dual-mode design; the life test of the hinge axis can reach 50,000 openings and closings.

[0106] Stepped cup body optimization: The enlarged design of the upper cup body 101 increases the thickness of the insulation layer to 5mm (3mm in traditional design), and the measured 95℃ hot water insulation time is extended to 8 hours (increased by 25%).

[0107] In order to explain the present application more clearly, the working principle of the present invention is described below in combination with specific application scenarios:

[0108] The dual-mode drinking port cover and the heat preservation container of the present invention realize seamless switching between the straw and direct drinking modes, flow rate classification control and sealing functions based on the following technical principles:

[0109] 1. Dual-mode switching mechanism

[0110] (1) Straw mode:

[0111] When the flip straw 41 is flipped upward to a vertical state (90°), the main water inlet hole 441 of the ball-shaped connecting portion 44 at the end thereof is completely aligned with the straw connecting hole 10 of the lower cover 2 and the lower straw 7, forming a closed fluid passage. The liquid enters the straw connecting hole 10 through the lower straw 7, and is transported to the flip straw 41 through the main water inlet hole 441 for output, thus realizing closed straw drinking.

[0112] (2) Direct drinking mode:

[0113] The flip straw 41 is folded downward and stored in the receiving groove 8, and the surface of the flip straw 41 is flush with the top surface of the upper cover 3. At this time, the drinking port 11 of the lower cover 2 is completely exposed. The user can drink liquid directly through the annular guide opening structure 221, and the liquid spreads evenly along the guide opening to reduce splashing.

[0114] (3) Synergy of key components:

[0115] The spherical connection part 44 is embedded in the spherical groove of the receiving groove 8 through interference fit to ensure sealing during rotation; the hinge shaft realizes stable flipping of the upper cover body 3, and the locking assembly 6 is fixed and sealed in the closed state.

[0116] 2. Intelligent traffic classification control principle

[0117] (1) Angle-aperture matching design:

[0118] The spherical connecting portion 44 has three auxiliary water inlets 442 distributed longitudinally along the spherical surface, with apertures of 1 mm (small), 2 mm (medium), and 3 mm (large), respectively, corresponding to the opening angles of 30°, 45°, and 60° of the flip straw 41 .

[0119] (2) Dynamic adjustment of flow limiting plug:

[0120] A flow limiting plug 12 is installed in the straw connection hole 10, and the central through hole 91 has a diameter of 3.5 mm. The curvature of the top arc surface is consistent with the spherical curvature of the auxiliary water inlet 442 distribution area. When the straw 41 is turned over and opened to a specific angle, the corresponding auxiliary water inlet 442 partially or completely overlaps with the through hole 91 of the flow limiting plug 12, and the flow rate is controlled by adjusting the overlapping area:

[0121] 30° opening: 1mm auxiliary water inlet 442 partially overlaps with through hole 91, and the flow rate is about 10mL / s;

[0122] 45° opening: the 2mm auxiliary water inlet 442 is fully aligned with the through hole 91, and the flow rate is increased to 15 mL / s;

[0123] 60° opening: the 3mm auxiliary water inlet 442 is fully aligned with the through hole 91, and the flow rate is increased to 25 mL / s;

[0124] 90° upright: the main water inlet hole 441 is fully open (4mm in diameter), and the flow rate reaches 30mL / s.

[0125] (3)Technical advantages:

[0126] Through physical angle limitation and aperture classification, adaptive flow regulation without electronic devices is achieved; in the child mode (Example 3), the maximum aperture of the auxiliary water inlet 442 is limited to 2 mm, which forcibly reduces the risk of rapid drinking.

[0127] 3. Sealing and exhaust balance mechanism

[0128] Sealing and leak prevention: When the upper cover body 3 is closed, the sealing plug 45 at the bottom thereof is pressed into the exhaust port 9 at the center of the lower cover body 2, and the elastic deformation of the silicone rubber is used to achieve air tightness to prevent liquid leakage.

[0129] Air pressure balance: when the upper cover 3 is opened, the sealing plug 45 is separated from the exhaust port 9, and the external air enters the cup body 1 through the exhaust port 9, eliminating the negative pressure obstacle and ensuring the smooth output of the liquid.

[0130] 4. Human-computer interaction optimization design

[0131] (1) The gripping portion 5 is non-slip: the inner arc surface of the L-shaped structure of the gripping portion 5 fits the finger, and the outer groove surface increases the friction.

[0132] (2) Stability of the 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 mouth cover, thereby improving the sealing performance and the holding stability.

[0133] 5. Child safety protection logic (Example 3)

[0134] Forced flow restriction: Reduce the maximum aperture of the auxiliary water inlet 442 to 2 mm, and the diameter of the main water inlet through hole 441 to 3 mm, to ensure that the maximum flow rate in the child mode is ≤15 mL / s;

[0135] Child lock structure: A double button buckle is arranged inside the nozzle cover cap 43, and both sides need to be pressed at the same time to unlock it, so as to prevent children from accidentally opening it with one hand.

[0136] In summary, the present invention realizes dual-mode seamless switching, intelligent flow regulation and high-reliability sealing through mechanical structure innovation (curvature matching of the spherical connecting part 44 and the flow limiting plug 12, and graded design of the auxiliary water inlet 442) and application of physical principles (air pressure balance, angle-flow correlation), while optimizing human-computer interaction and safety to meet drinking needs in multiple scenarios.

[0137] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0138] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in the field; when the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

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

2. The dual-mode drinking opening cover according to claim 1, characterized in that: The lower cover body (2) is provided with a gripping portion (5) on the side thereof, and the gripping portion (5) is provided with a fixed end and a free end; the fixed end of the gripping portion (5) is connected to the side wall of the lower cover body; the free end of the gripping portion (5) extends inwardly to form a limiting section; the inner side surface of the gripping portion (5) is a fitting arc surface, and the outer side surface is a groove surface.

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

4. The dual-mode drinking opening cover according to claim 3, characterized in that: A raised flip handle (42) is provided on the side of the flip straw (41) facing away from the receiving groove (8).

5. The dual-mode drinking opening cover according to claim 2, characterized in that: An exhaust port (9) is provided at the center of the lower cover body (2), and a sealing plug (45) capable of sealing the exhaust port (9) is provided on the corresponding bottom surface of the upper cover body.

6. The dual-mode drinking opening cover according to claim 5, characterized in that: The spherical connecting portion (44) is provided with a plurality of auxiliary water inlets (442) which are arranged longitudinally along the spherical surface and whose apertures increase from top to bottom. When the main water inlet through hole (441) is in communication with the lower suction pipe (7), the auxiliary water inlets are in a closed state.

7. The dual-mode drinking opening cover according to claim 6, characterized in that: A flow limiting plug (12) is provided in the straw connection hole (10), the flow limiting plug is detachable, a through hole is provided at the center of the flow limiting plug; the top is an arc surface matching 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 opening cover according to claim 7, characterized in that: The maximum aperture of the auxiliary water inlet (442) is smaller than or equal to the aperture of the through hole of the flow limiting plug.

9. The dual-mode drinking opening cover according to claim 7, characterized in that: The auxiliary water inlet has three apertures: small, medium and large, corresponding to the opening angles of the flip straw at 30°, 45° and 60° respectively; When the suction tube is turned over 90 degrees and stands upright, the main water inlet through hole (441) is opened and communicated with the lower suction tube.

10. A heat-insulating container, characterized in that: It comprises the dual-mode drinking mouth cover body as described in any one of claims 1 to 9 and a cup body (1) threadedly connected to the mouth cover body; the cup body has a stepped structure with a larger top and a smaller bottom, comprising an upper cup body (101) and a lower cup body (102) with different outer diameters.

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