Anti-splashing water cup
By designing a rotatable and closable top cover and an interconnected pressure relief and venting component in the water cup, the problem of liquid splashing when the cup with a spout is opened is solved, enabling multiple drinking methods and a better drinking experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIWU MIDI TECHNOLOGY CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-15
AI Technical Summary
Existing water cups with spouts are prone to liquid splashing when the top lid is opened due to the release of high-pressure gas, resulting in an unpleasant drinking experience.
A splash-proof water cup has been designed, which includes a rotatable and closable top cover, a pressure relief component, an exhaust component, and a ventilation component. The pressure relief component is activated by a button component to release pressure and exhaust air. The pressure difference and the ventilation component are used to balance the internal and external air pressure to prevent liquid from splashing.
It effectively prevents liquid from spraying out, provides multiple drinking methods, meets user needs, and ensures a good drinking experience.
Smart Images

Figure CN224235125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cup technology, and in particular to a splash-proof water cup. Background Technology
[0002] A cup, a common daily necessity, typically consists of a body and a lid. The lid is threaded onto the body to prevent liquid from spilling. Usually, the lid has a drinking spout, allowing the liquid to flow out when the cup is tilted. To meet diverse needs, some cups on the market have lids with built-in spouts, allowing users to sip liquid from the cup.
[0003] For water cups with spouts, a lid needs to be designed to cover the spout to prevent dust from the air from sticking to it or entering the cup through the spout. When the cup is filled with 100℃ hot water, the steam will form high-pressure gas in the sealed space. When the lid is opened, the pressure is completely released. When the lid is suddenly opened, the hot water inside may rush out of the spout, causing splashing and creating an unpleasant drinking experience for the user. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, this utility model provides a splash-proof water cup. To solve the above-mentioned technical problems, this utility model provides the following technical solution.
[0005] A splash-proof water cup includes a cup body, a cup lid, and a rotatable top cover. The cup body and the cup lid are threadedly connected. The cup lid has a drinking spout, and a detachable spout is attached to the drinking spout. A button assembly is located on one side of the cup lid, allowing the top cover to be opened via the button assembly. The cup lid also includes a pressure relief assembly, a venting assembly, and a ventilation assembly.
[0006] The pressure relief component is linked to the button component. The pressure relief component is activated by the button component. When the button component opens the lid, the pressure relief component is activated to release pressure inside the cup.
[0007] The exhaust assembly and the pressure relief assembly are activated to change the air pressure inside the cup body. The exhaust assembly is activated by the air pressure difference inside and outside the cup body to exhaust air.
[0008] The ventilation component is blocked when the top cover is closed, and is normally open when the cover is opened, allowing outside air to enter the cup body through the ventilation component.
[0009] Furthermore, the exhaust assembly includes a mounting hole, a plurality of exhaust holes surrounding the outer edge of the mounting hole, and a plug installed in the mounting hole. The plug is closed within the exhaust holes, and the exhaust holes are opened by the deformation of the plug.
[0010] Furthermore, the plug includes a column for passing through the mounting hole, a stop at the top of the column, and a sealing plate at the bottom of the column. The diameter of the stop and the sealing plate is larger than that of the mounting hole. The sealing plate is fitted under the cup lid and covers all the vent holes. The sealing plate is deformed by negative pressure to open the vent holes.
[0011] Furthermore, the pressure relief assembly includes a pressure relief groove on the cup lid, a movable column installed in the pressure relief groove that can move longitudinally and whose end extends out of the pressure relief groove, and a sealing element fitted on the end of the movable column. The sealing element blocks the end of the pressure relief groove. The button assembly pushes the movable column to move longitudinally, and the movable column drives the sealing element to open or close the air intake groove.
[0012] Furthermore, the ventilation assembly includes a vent hole on the cup lid and a vent valve installed on the vent hole, through which air enters the cup body.
[0013] Furthermore, the button assembly includes a button slot located on the front side of the cup lid, a movable button installed in the button slot, a latch inside the button, and a downwardly extending buckle on one end of the top cover for opening and closing, which locks with the latch. The button moves laterally to move the latch away from the buckle for unlocking the top cover. The button is reset by a spring.
[0014] Furthermore, the end of the button is provided with a protruding block with an inclined surface. The inclined surface on the block pushes the movable column to move vertically downward, and the movable column is reset by a spring.
[0015] Furthermore, one end of the top cover is axially connected to the cup lid, and the top cover is provided with a sealing element adapted to the suction nozzle. When the top cover is closed, the sealing element blocks the suction nozzle port.
[0016] Furthermore, the top cover is provided with a flip-open handle, one end of which is pivotally connected to the cup lid, and the other end of which is provided with a protruding lever.
[0017] Furthermore, the outer wall of the top cover is provided with a protruding locking block, and the inner wall of the handle is provided with a protruding locking block. When the handle is closed, it fits against the top cover, and the locking block and the locking block form a lock.
[0018] Compared with the prior art, the beneficial effects that this utility model can achieve are:
[0019] The cup lid of this utility model is provided with a drinking spout, and a detachable spout is installed on the drinking spout. The spout can be used to drink the liquid in the cup body, or the spout can be removed and used to drink directly from the drinking spout, which can meet the different needs of users.
[0020] The cup lid features a venting component, an exhaust component, and a ventilation component. The venting component is linked to the button component; the button opens the lid, simultaneously activating the venting component to release pressure within the cup. The exhaust component allows for unidirectional venting. After venting, the internal pressure balance is disrupted, and the pressure difference between the inside and outside of the cup forces the exhaust component to open, allowing air inside the cup to escape. The priority for venting shifts from the spout to the exhaust component. Both the venting and exhaust components effectively prevent liquid from spraying out of the spout when the lid is opened, avoiding an unpleasant drinking experience. The ventilation component is used for both air intake and exhaust. When the lid is closed, it blocks the ventilation component, preventing liquid from overflowing. When the lid is open, the ventilation component remains open, allowing outside air to continuously enter the cup through the ventilation component as the user drinks from the spout, balancing the internal and external pressure difference and ensuring continuous drinking. Attached Figure Description
[0021] Figure 1 This is a perspective view of the present invention.
[0022] Figure 2 This is a perspective view of the opened state of this utility model.
[0023] Figure 3 This is a cross-sectional view of the present invention.
[0024] Figure 4 This is a perspective view of the cup lid of this utility model.
[0025] Figure 5 This is a perspective view of the plug of this utility model.
[0026] Reference numerals: 1. Cup body, 2. Cup lid, 3. Drinking spout, 4. Sippy nozzle, 5. Top cover, 6. Exhaust assembly, 7. Vent assembly, 8. Mounting hole, 9. Exhaust hole, 10. Plug, 11. Column, 12. Stop block, 13. Sealing plate, 14. Button assembly, 15. Vent hole, 16. Vent valve, 17. Button groove, 18. Button, 19. Claw, 20. Snap fastener, 21. Pressure relief assembly, 22. Pressure relief groove, 23. Movable column, 24. Seal, 25. Block, 26. Handle, 27. Paddle, 28. Locking block, 29. Locking block. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] like Figure 1-5 As shown, a splash-proof water cup includes a cup body 1, a cup lid 2, and a rotatable top cover 5. The cup body 1 and the cup lid are threaded together, and the top cover 5 is swivelly connected to the cup lid 2, opening and closing by rotation via the swivel connection. The cup lid 2 has a drinking spout 3, and a detachable spout 4 is attached to the drinking spout 3. The spout 4 is used to draw liquid from the cup body 1. When the top cover 5 is closed, it covers the spout 4 to prevent external dust from sticking to the spout 4 or entering the cup body 1 through the spout 4, ensuring good hygiene. A button assembly 14 is provided on one side of the cup lid 2. When the top cover 5 is closed, it engages with the button assembly 14. The locking of the top cover 5 is released by manually pressing the button assembly 14. After unlocking, the top cover 5 springs open by the return force of a torsion spring.
[0029] The cup lid 2 is provided with a pressure relief component 21, an exhaust component 6, and a ventilation component 7. The pressure relief component 21 is linked to the button component 14. The pressure relief component 21 is opened by the button component 14. When the button component 14 is pressed to unlock the top cover 5, the button component 14 pushes the pressure relief component 21 to release pressure. When the button component 14 is reset, the pressure relief component 21 is reset and closed again by the spring's rebound force.
[0030] The exhaust component 6 is unidirectional. When the pressure relief component 21 is opened and pressure is released, the air pressure balance inside the cup body 1 is broken. The air pressure difference inside and outside the cup body 1 squeezes the exhaust component 6, causing it to open. The air inside the cup body 1 can be discharged through the exhaust component 6. The priority of exhausting is shifted from the spout 3 to the exhaust component 6. Both the pressure relief component 21 and the exhaust component 6 can exhaust, which can effectively prevent the liquid inside from spraying out of the spout 3 after the top cover 5 is opened. This greatly prevents water from spraying out when the lid is opened, avoiding an unpleasant drinking experience for the user.
[0031] The venting component 7 allows air to enter and exit. When the top cover 5 is closed, the venting component 7 is blocked, preventing liquid in the cup body 1 from overflowing. When the top cover 5 is open, the venting component 7 is in a normally open state. As the user continuously sucks the liquid from the cup body 1 using the spout 3, outside air continuously enters the cup body 1 through the venting component 7 to balance the pressure difference between the inside and outside, ensuring continuous drinking. When the lid is opened, some gas can also be released through the venting component 7, further reducing the likelihood of water spraying after opening.
[0032] The venting assembly 6 includes a mounting hole 8, a plurality of vent holes 9 surrounding the outer edge of the mounting hole 8, and a plug 10 installed in the mounting hole. The plug 10 is sealed within all the vent holes 9. The plug 10 is made of soft rubber. The negative pressure generated inside the cup body 1 squeezes the plug 10, causing the plug 10 to deform. At this time, the plug 10 is misaligned with the vent holes 9, and the air inside the cup body 1 can be discharged through the plurality of vent holes 9 first, preventing the liquid from spraying out of the spout 4 after the lid is opened. After the venting is completed, the plug 10 re-blocks the vent holes 9 by its own elasticity.
[0033] The plug 10 includes a column 11 for passing through the mounting hole 8, a stop 12 at the top of the column 11, and a sealing plate 13 at the bottom of the column 11. The diameters of the stop 12 and the sealing plate 13 are larger than the mounting hole 8 to prevent the plug 10 from falling out of the mounting hole 8. The sealing plate 13 fits against the bottom of the cup lid 2 and covers all the vent holes 9. When the top cover 5 is closed, it contacts the stop 12, and the sealing plate 13 is squeezed by air pressure to open the vent holes 9 for venting.
[0034] The pressure relief assembly 21 includes a pressure relief groove 22 on the cup lid 2, a movable column 23 installed in the pressure relief groove 22 and extending longitudinally with its end protruding from the pressure relief groove 22, and a sealing member 24 fitted onto the end of the movable column 23. The sealing member 24 blocks the end of the pressure relief groove 22 and moves synchronously with the movable column 23. The pressure relief groove 22 is opened or closed by pushing the movable column 23 longitudinally through the button assembly 14. When the pressure relief groove 22 is open, air inside the cup body 1 can enter the pressure relief groove 22 and be discharged outside the cup body 1.
[0035] The ventilation assembly 7 includes a vent 15 on the lid 2 and a vent valve 16 installed on the vent 15. When the lid 5 is closed, the vent valve 16 is blocked to prevent the cup from shaking and causing liquid in the cup body 1 to overflow from the vent valve 16. When the lid 5 is open, the vent valve 16 is in a normally open state. When drinking, outside air continuously enters the cup body 1 through the vent valve 16 to balance the pressure difference between the inside and outside. The air inside the cup body 1 can also be partially discharged through the vent valve 16.
[0036] The button assembly 14 includes a button slot 17 located on the front side of the cup lid 2, and a movable button 18 installed in the button slot 17. The button 18 has a locking claw 19. A downwardly extending latch 20 on one end of the top cover 5, used for opening and closing, locks the latch 19. When the button 18 is pressed, it moves laterally, causing the latch 19 to disengage from the latch 20, releasing the lock between the button 18 and the top cover 5. The top cover 5 then springs up via a torsion spring. A spring is installed in the button slot 17, pressing against the button 18. After the button 18 is pressed, it returns to its original position via the spring's rebound.
[0037] The button 18 has a protruding block 25 at its end, with an inclined surface. When the button 18 is pressed, the block 25 moves inward, pushing the movable column 23 downward longitudinally through the inclined surface. The movable column 23 then moves the sealing element 24 downward to open the air inlet groove 22, allowing gas inside the cup body 1 to be expelled. After the button 18 is reset, the movable column 23 also resets due to the spring's return force, causing the sealing element 24 to move upward and re-block the air inlet groove 22.
[0038] One end of the top cover 5 is axially connected to the cup lid 2. The top cover 5 is equipped with a sealing element adapted to the spout. When the top cover is closed, the sealing element blocks the port of the spout 2 to prevent the liquid inside from overflowing from the spout 3 when the cup is shaken, thus ensuring good sealing.
[0039] The top cover 5 is provided with a flip-open handle 26. One end of the handle 26 is pivotally connected to the cup lid 2, coaxially connected with the top cover 5. The other end of the handle 26 is provided with a protruding lever 27. The outer wall of the top cover 5 is provided with a protruding locking block 28, and the inner wall of the handle 26 is provided with a protruding locking block 29. When the handle 26 is closed, it fits against the top cover 5, and the locking block 28 and the locking block 29 form a lock. When the handle is not in use, it can be closed for easy storage. When it is necessary to use the handle 26 to lift the cup, the lever 27 can be pushed upward to release the locking block 28 and the locking block 29. After the lock is released, the handle 26 can be rotated freely for easy lifting.
[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A splash-proof water cup, comprising a cup body, a cup lid, and a rotatable top cover, wherein the cup body and the cup lid are threadedly connected, characterized in that, The cup lid is provided with a drinking spout, and a detachable spout is installed on the drinking spout. A button assembly is provided on one side of the cup lid, and the top cover is opened by the button assembly. The cup lid is equipped with a pressure relief component, a venting component, and a ventilation component: The pressure relief component is linked to the button component. The pressure relief component is activated by the button component. When the button component opens the lid, the pressure relief component is activated to release pressure inside the cup. The exhaust assembly and the pressure relief assembly are activated to change the air pressure inside the cup body. The exhaust assembly is activated by the air pressure difference inside and outside the cup body to exhaust air. The ventilation component is blocked when the top cover is closed, and is normally open when the cover is opened, allowing outside air to enter the cup body through the ventilation component.
2. The anti-splash water cup according to claim 1, characterized in that, The exhaust assembly includes a mounting hole, a plurality of exhaust holes surrounding the outer edge of the mounting hole, and a plug installed in the mounting hole. The plug is closed in the exhaust holes, and the exhaust holes are opened by the deformation of the plug.
3. The anti-splash water cup according to claim 2, characterized in that, The plug includes a column for passing through the mounting hole, a stop at the top of the column, and a sealing plate at the bottom of the column. The diameter of the stop and the sealing plate is larger than the mounting hole. The sealing plate is fitted under the cup lid and covers all the vent holes. The sealing plate is deformed by negative pressure to open the vent holes.
4. The anti-splash water cup according to claim 1, characterized in that, The pressure relief assembly includes a pressure relief groove on the cup lid, a movable column installed in the pressure relief groove that can move longitudinally and whose end extends out of the pressure relief groove, and a sealing element fitted on the end of the movable column. The sealing element blocks the end of the pressure relief groove. The button assembly pushes the movable column to move longitudinally, and the movable column drives the sealing element to open or close the air intake groove.
5. A splash-proof water cup according to claim 1, characterized in that, The ventilation component includes a vent hole on the cup lid and a vent valve installed on the vent hole, through which air enters the cup body.
6. A splash-proof water cup according to claim 4, characterized in that, The button assembly includes a button slot located on the front side of the cup lid, a movable button installed in the button slot, a locking claw inside the button, and a downward-extending buckle and locking claw on one end of the top cover for opening and closing. The button moves laterally to move the locking claw away from the buckle for unlocking the top cover. The button is reset by a spring.
7. A splash-proof water cup according to claim 6, characterized in that, The button has a protruding block at its end with an inclined surface. The inclined surface on the block pushes the movable column downwards longitudinally, and the movable column is reset by a spring.
8. A splash-proof water cup according to claim 1, characterized in that, One end of the top cover is axially connected to the cup lid, and the top cover is equipped with a sealing element adapted to the suction nozzle. When the top cover is closed, the sealing element blocks the suction nozzle port.
9. A splash-proof water cup according to claim 1, characterized in that, The top cover is equipped with a flip-open handle, one end of which is pivotally connected to the cup lid, and the other end of which is equipped with a protruding lever.
10. A splash-proof water cup according to claim 9, characterized in that, The outer wall of the top cover is provided with a protruding locking block, and the inner wall of the handle is provided with a protruding locking block. When the handle is closed, it fits against the top cover, and the locking block and the locking block form a lock.