Anti-overflow and anti-choking cup
By setting a through hole in the anti-overflow cup to connect with the outside, and using a guide cavity and guide channel to control the water flow rate, the problem of children choking and being scalded when drinking hot water is solved, achieving a safe and comfortable drinking experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-03-13
AI Technical Summary
Existing anti-overflow drinking cups can cause hot water to spray into a child's throat, leading to choking, burns, and other discomfort.
A water-proof and choking-proof cup was designed. By setting a through hole in the cup body to connect with the outside, atmospheric pressure is used to balance the air pressure inside and outside the cup body. Combined with a guide cavity and guide channel, the water flow speed is controlled to prevent hot water from spraying directly.
It effectively avoids choking and burns caused by hot water spraying into the throat, ensuring comfort and safety during the drinking process.
Smart Images

Figure CN223987773U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drinking cup technology, specifically to a water cup that prevents overflow and choking. Background Technology
[0002] In daily life, people of different ages use drinking cups when drinking water. These cups are usually made of materials such as stainless steel, plastic, ceramic, and glass, and come in different designs, including cylindrical and slightly tapered shapes. They generally have a small capacity and are suitable for holding liquids such as water and alcohol. For children, spill-proof drinking cups can help them smoothly transition from drinking with a spout or other aids to drinking from a regular cup, thereby reducing the occurrence of water spills due to a lack of familiarity with the cup.
[0003] For example, Chinese patent application number 202220167058.5, published on July 5, 2022, discloses an anti-overflow drinking cup, including a support and an elastic anti-overflow lid. The support includes a connecting part and a drinking part. The connecting part includes an inner groove. The elastic anti-overflow lid includes an annular connecting part and a bowl-shaped covering part. The inner wall of the inner groove is provided with limiting teeth that are detachable from the annular connecting part. Multiple limiting teeth are provided and spaced along the inner wall of the inner groove, forming a water passage cavity between adjacent limiting teeth. The outer diameter of the annular connecting part is smaller than the inner diameter of the inner wall of the inner channel, so that the annular connecting part and the water passage cavity form a water passage channel. The water passage channel is set against the inner wall of the inner channel, so liquid is not easy to remain. At the same time, the outer diameter of the annular connecting part is smaller than the inner diameter of the inner wall of the inner channel, and there is a gap between the annular connecting part and the limiting tooth, so all water passage channels are connected, further avoiding liquid residue. Moreover, the water passage channel is formed by the annular connecting part and the water passage cavity. When the elastic anti-overflow cover is removed from the support, the water passage channel can be divided into two parts for thorough cleaning.
[0004] However, when the bowl-shaped cover in the aforementioned patent document is installed on the support, the internal pressure of the cup containing hot water will be greater than the external atmospheric pressure. When a child drinks water, the hot water in the cup is likely to spray into the throat, causing choking and discomfort. Utility Model Content
[0005] The purpose of this utility model is to provide a water-proof and choking-proof cup that makes the internal air pressure of the cup the same as the external atmospheric pressure before drinking water, thereby avoiding discomfort such as choking and burns caused by hot water spraying into the throat. It has a simple structure and high practicality.
[0006] This utility model provides the following technical solution: a water-proof and choking-proof cup, including a cup body and a connecting cover, the lower end of which is connected to the cup body. It also includes a water-proof cover, the connecting cover including a connecting seat and a boss formed by protruding along the axis of the connecting seat away from the connecting seat. The outer surface of the water-proof cover is respectively attached to the inner wall of the boss and the connecting seat. A water storage cavity is formed between the upper end face of the connecting seat, the outer side face of the water-proof cover and the inner wall of the boss. The upper end face of the connecting seat is provided with two or more through holes distributed in a circle. Water in the cup body is stored in the water storage cavity after passing through the through holes. The upper edge of the water-proof cover covers the outlet of the water storage cavity and forms a water outlet when the edge of the water-proof cover is subjected to force.
[0007] The above design addresses the issue of hot water causing internal expansion and increasing internal pressure. To prevent choking or burns from hot water spraying out of the reservoir, the upper edge of the spill-proof cap is pulled to open a small hole, allowing the cup to connect to the outside environment. This allows the external atmospheric pressure to be equalized with the external pressure through a hole on the connector. When drinking, the drinker's mouth contacts the upper edge of the spill-proof cap, creating an outlet between the edge and the protrusion. Water flows through the hole to the drinker's mouth, while the water on the side of the protrusion that doesn't contact the mouth remains in the reservoir. This design prevents excessive water from being expelled and causing choking, making drinking easier and highly practical.
[0008] Furthermore, the two sides of the through hole are provided with partitions that are respectively connected to the upper end face of the connecting seat and the inner side wall of the boss, and a guide cavity is formed between the partitions.
[0009] The above configuration, by setting baffles on both sides of the through hole to form a guide cavity, can guide the outflowing water through separate channels, thus ensuring the reliability of the flow.
[0010] Furthermore, the connecting seat has a through hole in the middle, and the two ends of the through hole are respectively connected to the water storage cavity and the inside of the cup body. The inner side of the through hole near the end of the cup body is provided with a convex ring that protrudes inward along the radial direction.
[0011] The above configuration, after the overflow cover is tightly attached to the boss, facilitates the restriction of the overflow cover in the axial direction of the through hole one by the convex ring.
[0012] Furthermore, the lower part of the boss is connected to the upper end face of the connecting seat. The diameter of the through cavity formed in the middle of the boss, which is a hollow structure, is larger than the diameter of the through hole. The lower inner side of the boss forms an inner straight surface, and a stepped surface is formed on the connecting seat located in the through cavity. The through hole is set on the stepped surface.
[0013] With the above configuration, after the boss and the connecting seat are connected, the upper surface of the local connecting seat located in the through cavity forms a stepped surface, which allows through holes and partitions to be set on the stepped surface.
[0014] Furthermore, the upper part of the boss is inclined outward from the axis of the through hole to form an inclined part. An inclined surface is provided on the inner side of the inclined part, and two or more guide components are provided on the inclined surface in a circular arrangement. The guide components are aligned with the guide cavity.
[0015] The above design improves the comfort of the drinker when in contact with the inclined part during drinking. Furthermore, the inclined surface and guide components facilitate the slow flow of water out of the water storage chamber, preventing discomfort such as choking or scalding.
[0016] Furthermore, the upper end of the inner straight surface is connected to the inclined surface, the lower end of the inner straight surface is connected to the stepped surface, the through holes are evenly spaced in a circle on the stepped surface, the adjacent sides of the partition are connected to the inner straight surface and the stepped surface respectively, and the side of the partition away from the inner straight surface and the stepped surface is inclined.
[0017] The above configuration creates a guide cavity between the inner straight surface, the stepped surface, and the two partitions, which in turn guides the water flowing through the through hole.
[0018] Furthermore, the guiding assembly includes a guide member one and one or more guide members two. The guide members two are symmetrically arranged on both sides of the guide member one. The guide members three are arranged on both sides of the guiding assembly and aligned with the partition. The two ends of the guide members one, two and three are all protruding towards the center. A guiding channel is formed between the guide members one and two, and between the guide members two and three.
[0019] The above configuration allows the overflow cover to be pressed towards the inner wall of the protrusion when it is pressed. This enables the partial overflow cover that is in contact with the inclined surface to detach from the inclined surface and form an outlet under the action of guide component one and guide component three. At the same time, due to the guide channel set on the inclined surface and aligned with the guide cavity, the water in the water storage cavity can flow out through the guide channel. Furthermore, the water in the water storage cavity is diverted through multiple guide channels, allowing the water in the water storage cavity to flow out slowly, thereby avoiding choking and burns caused by direct spraying to the throat.
[0020] Furthermore, the overflow cover includes an upper part of the cover that matches the inclined portion, a cover connecting part that matches the through hole, and a lower part of the cover. The upper end of the cover connecting part is connected to the upper part of the cover, and the lower end of the cover connecting part is connected to the lower part of the cover. The connecting lug is provided along the edge side of the upper part of the cover and is connected to the upper part of the cover to form an integral part. The overflow cover is made of a flexible material.
[0021] The above design, after the upper part of the lid and the inclined part, and the lower part of the lid and the inner wall of the through hole are fitted together, can form a water storage cavity between the stepped surface, the inner straight surface, the inclined surface and the outer surface of the anti-overflow lid. Before drinking water, the user can fold the edge of the anti-overflow lid outward to create a gap between the anti-overflow lid and the protrusion, so that the air pressure inside the cup is the same as the outside air pressure, thereby avoiding discomfort such as choking and scalding when drinking water.
[0022] Furthermore, a limiting groove is formed between the cover connecting part and the lower part of the cover, which is recessed inward along the radial direction. The limiting groove matches the convex ring, and the bottom end of the lower part of the cover is provided with a downward protruding drain outlet.
[0023] The above settings can limit the position of the spill cover, allowing it to fit more stably against the inner wall of the boss and the connecting seat.
[0024] Furthermore, the bottom of the connecting seat is spirally connected to the cup body, and the bottom of the connecting seat is provided with an installation groove along the inner side wall of the connecting seat. The installation groove is provided with two or more circumferentially distributed slots.
[0025] The above settings allow the sealing ring to be installed in the mounting slot via a slot. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the anti-overflow cover in this utility model.
[0027] Figure 2 This is a schematic diagram of the cup body in this utility model.
[0028] Figure 3 This is a schematic diagram of the connecting cover in this utility model.
[0029] Figure 4 This is a structural schematic diagram of the connecting cover from another perspective in this utility model.
[0030] Figure 5 This is a schematic diagram of the structure of the cup lid in this utility model.
[0031] Figure 6 for Figure 3 Enlarged view of point A in the middle.
[0032] Figure 7 This is a partial cross-sectional view of the anti-overflow cover being connected to the connecting cover in this utility model. Detailed Implementation
[0033] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0034] like Figure 1-7As shown, this utility model provides a spill-proof and choking-proof cup, including a cup body 1, a connecting cover 2, an spill-proof cover 3, and a cup lid 4. The lower end of the connecting cover 2 is connected to the cup body 1. The spill-proof cover 3 is inserted into and covers the connecting cover 2. The cup lid 4 is connected to the upper end of the connecting cover 2. The connecting cover 2 includes a connecting seat 21 and a boss 22 formed by protruding outward from the connecting seat along the axis of the connecting seat. The bottom of the connecting seat 21 is spirally connected to the cup body 1. The bottom of the connecting seat 21 has an installation groove 211 along the inner side wall of the connecting seat. The cup 21 has two or more circumferentially distributed slots 212. A sealing ring is installed in the mounting groove 211 through the slots 212, ensuring a good seal. A step 213 is formed on the outer edge of the connecting seat 21 near the boss. A flexible protrusion 41, located inside the cup lid 4, engages with the step 213. A handle 214, symmetrically arranged about the boss 22, is provided on the outer side of the connecting seat 21. This prevents dust from entering the cup body 1 when the cup lid 4 is on the connecting seat 21, and also allows children to easily pick up the cup using the handle 214 while drinking. In this embodiment, the spill-proof lid 3 is made of a flexible, soft material, such as silicone.
[0035] like Figure 1 , 3 As shown in Figures 4 and 6, the outer surface 31 of the overflow cover is respectively fitted to the inner wall of the boss 22 and the connecting seat 21, so that a water storage cavity a6 is formed between the upper end face 215 of the connecting seat, the outer surface 31 of the overflow cover, and the inner wall a61 of the boss. The middle part of the connecting seat 21 is provided with a through hole 216, and the two ends of the through hole 216 are respectively connected to the water storage cavity a6 and the inside of the cup body 1. The inner side of the through hole 216 near the end of the cup body 1 is provided with a convex ring 217 that protrudes radially inward. The lower part of the boss 22 is connected to the upper end face 215 of the connecting seat and is set as a hollow structure. A through cavity is formed in the middle of the platform 22. The diameter of the through cavity is larger than the diameter of the through hole 216. An inner straight surface 221 is formed on the lower inner side of the boss 22. A stepped surface 218 is formed on the upper end face of the local connecting seat located in the through cavity. Two or more through holes 219 are provided on the stepped surface 218 and are distributed in a circular pattern. The upper part of the boss 22 is inclined outward from the axis of the through hole to form an inclined part 222. An inclined surface 223 is provided on the inner side of the inclined part 222. The upper end of the inner straight surface 221 is connected to the inclined surface 223, and the lower end of the inner straight surface 221 is connected to the stepped surface 218.
[0036] like Figure 6As shown, partitions 5 are provided on both sides of the through hole 219, which are respectively connected to the upper end face 215 of the connecting seat and the inner side wall a61 of the boss. The adjacent sides of the partitions 5 are respectively connected to the inner straight surface 221 and the stepped surface 218. The side of the partition 5 away from the inner straight surface 221 and the stepped surface 218 is inclined, so that the inner straight surface 221, the stepped surface 218 and the two partitions 5 form a guide cavity, which guides the water flowing through the through hole 219, so that the water in the cup flows through the through hole 219 and passes through the guide cavity and is stored in the water storage cavity a6.
[0037] like Figure 6 As shown, the inclined surface 223 is provided with two or more guide components 6 arranged in a circular pattern. The guide components 6 are aligned with the guide cavity. The guide components 6 include a first guide 61 and one or more second guides 62. The second guides 62 are symmetrically arranged on both sides of the first guide 61. The third guides 63 are located on both sides of the guide components 6 and are aligned with the partition 5. The two ends of the first guide 61, the second guide 62 and the third guide 63 are all protruding towards the center. In this embodiment, the first guide 61 and the third guide 63 have the same length along the inclined surface 223 and are longer than the second guide 62 along the inclined surface 223. The heights of the first guide 61 and the third guide 63 protruding towards the center are the same and are greater than the heights of the second guide 62 protruding towards the center. The height of the protrusion, the guide channel 64 formed between guide member 1 61 and guide member 2 62 and between guide member 2 62 and guide member 3 63, so that when the anti-overflow cover 3 is pressed towards the inner side wall a61 of the protrusion, the part of the anti-overflow cover that is in contact with the inclined surface 223 can be separated from the inclined surface 223 under the action of guide member 1 and guide member 3 to form a gap. At the same time, due to the guide channel 64 set on the inclined surface 223 and aligned with the guide cavity, the water in the water storage cavity a6 can flow out through the guide channel 64 from the gap formed, and the water in the water storage cavity a6 can be diverted through multiple guide channels 64, so that the water in the water storage cavity a6 can flow out slowly, thereby avoiding choking and burns caused by direct spraying to the throat.
[0038] like Figure 1As shown, the overflow cover 3 has one or more connecting ears 311 on its upper edge side. The overflow cover 3 includes an upper cover part 32 that matches the inclined part 222, a cover connecting part 33 that matches the through hole 216, and a lower cover part 34. The upper end of the cover connecting part 33 is connected to the upper cover part 32. The connecting ears 311 are provided along the edge side of the upper cover part 32 and are connected to the upper cover part 32 to form an integral part. In this embodiment, there is only one connecting ear 311. The lower end of the cover connecting part 33 is connected to the lower cover part 34. A limiting groove 35 is formed between the cover connecting part 33 and the lower cover part 34, which is recessed radially inward. The limiting groove 35 matches the protruding ring 217 and can limit the overflow cover 3, making it more stably fit against the inner wall of the protrusion 22 and the connecting seat 21. The bottom of the lower part 34 is provided with a downward protruding overflow outlet 36. The upper part 32, the connecting part 33, and the lower part 34 of the cover are connected to form a whole. After the upper part 32 and the inclined part 222 and the lower part 34 of the cover are in contact with the inner wall of the through hole 216, a water storage cavity a6 can be formed between the stepped surface 218, the inner straight surface 221, the inclined surface 223, and the outer surface 31 of the overflow cover. The upper edge of the overflow cover 2 covers the outlet of the water storage cavity a6, and the water outlet is formed when the edge of the overflow cover is subjected to force. Before drinking water, the user connects the ear 311 to deform the upper end of the overflow cover 2, so that a gap is formed between the overflow cover 3 and the protrusion 22 to form a water outlet, so that the internal air pressure of the cup is the same as that of the outside air, thereby avoiding discomfort such as choking and scalding when drinking water.
[0039] The working principle of this utility model is as follows: Before drinking water, the user pulls the connecting ear 311 to form a gap between the upper edge of the anti-overflow cover 3 and the protrusion 22, so that the air pressure inside the cup is the same as the outside air pressure. Then, when the user presses the anti-overflow cover 32 towards the inner wall of the protrusion 22 with their mouth, the part of the anti-overflow cover that is in contact with the inclined surface can be separated from the inclined surface under the action of the guide member one and the guide member three to form a gap. At the same time, due to the guide channel set on the inclined surface and aligned with the guide cavity, the water in the water storage cavity a6 can flow out through the guide channel. The water in the water storage cavity a6 is diverted through multiple guide channels, so that the water in the water storage cavity a6 can flow out slowly, thereby avoiding discomfort such as choking and scalding when drinking water.
Claims
1. A water spill-proof and water choking-proof cup, comprising a cup body and a connecting cover body, the lower end of the connecting cover body being connected with the cup body, characterized in that: The anti-overflow cover is provided with one or more connecting ears on the upper edge side, and the outer side of the anti-overflow cover is attached to the inner side wall of the boss and the connecting seat respectively, so that a water storage cavity is formed between the upper end surface of the connecting seat, the outer side of the anti-overflow cover and the inner side wall of the boss, the upper end surface of the connecting seat is provided with two or more through holes distributed in a circle, water in the cup flows through the through holes and the guide cavity and is stored in the water storage cavity, and the upper end edge of the anti-overflow cover covers the outlet of the water storage cavity and forms a water outlet when the edge of the anti-overflow cover is subjected to a force.
2. The spill-proof and choke-proof cup according to claim 1, wherein: The two sides of the through hole are provided with baffles connected to the upper end surface of the connecting seat and the inner side wall of the boss respectively, and the baffles form a guide cavity therebetween.
3. The anti-spilling and anti-choking cup according to claim 1, wherein: The middle part of the connecting seat is provided with a through hole one, the two ends of the through hole one are communicated with the water storage cavity and the interior of the cup respectively, and the inner side of the through hole one close to the one end of the cup is provided with a convex ring protruding inward along the radial direction.
4. The anti-spilling and anti-choking cup according to claim 1, wherein: The lower part of the boss is connected to the upper end surface of the connecting seat, the diameter of the through cavity formed in the middle part of the boss in a hollow structure is greater than the diameter of the through hole one, the inner side of the lower part of the boss forms an inner straight surface, a step surface is formed on the connecting seat in the through cavity, and the through hole is arranged on the step surface.
5. The anti-spilling and anti-choking cup according to claim 1, wherein: The upper part of the boss is inclined outwardly away from the axis direction of the through hole one to form an inclined part, the inner side of the inclined part is provided with an inclined surface, the inclined surface is provided with two or more guide assemblies distributed in a circle, and the guide assemblies are arranged in alignment with the guide cavity.
6. The anti-spilling and anti-choking cup according to claim 4, wherein: The upper end of the inner straight surface is connected to the inclined surface, the lower end of the inner straight surface is connected to the step surface, the through hole is arranged on the step surface in a circle and evenly spaced, the two sides of the baffle are connected to the inner straight surface and the step surface respectively, and the side of the baffle away from the inner straight surface and the step surface is inclined.
7. The anti-spilling and anti-choking cup according to claim 5, wherein: The guide assembly includes a guide one and one or more guide twos, the guide twos are symmetrically arranged on the two sides of the guide one, guide threes are arranged on the two sides of the guide assembly in alignment with the baffle, the two ends of the guide one, the guide twos and the guide threes are protruded to the middle part, and guide channels are formed between the guide one and the guide twos and between the guide twos and the guide threes.
8. The anti-spilling and anti-choking cup according to claim 1, wherein: The anti-overflow cover includes a cover upper part matched with the inclined part, a cover connecting part matched with the through hole one and a cover lower part, the upper end of the cover connecting part is connected to the cover upper part, the lower end of the cover connecting part is connected to the cover lower part, the connecting ears are arranged along the edge side of the cover upper part and connected to the cover upper part to form an integral body, and the anti-overflow cover is made of a flexible material.
9. The anti-spilling, anti-choking cup of claim 8, wherein: A limiting groove is formed between the cover connecting part and the cover lower part and is arranged inwardly recessed along the radial direction, the limiting groove is matched with the convex ring, and the bottom end of the cover lower part is provided with a downward protruding pouring-out port.
10. The anti-spilling and anti-choking cup according to claim 1, wherein: The bottom of the connecting seat is screw-connected to the cup, the bottom of the connecting seat is provided with a mounting groove along the inner side wall of the connecting seat, and the mounting groove is provided with two or more clamping grooves distributed in a circle.
Citation Information
Patent Citations
Anti-overflow drinking cup
CN216875911U