Straw cup cover with sealing function and cup

Abstract

This utility model discloses a straw cup lid and cup with a sealing function, including a lid body, a drinking straw at the top of the lid body, an upper channel through the drinking straw, a lower channel on the lid body, and an inner cavity inside the lid body between the upper and lower channels. The inner cavity is connected to the lower end of the upper channel and the upper end of the lower channel, respectively. A cylindrical valve rod is built into the inner cavity, spaced between the upper and lower channels, and is rotatable. The valve rod is connected to a middle channel and a control part. The valve rod has a first working position and a second working position. When the valve rod is rotated to the first working position, the middle channel connects the upper and lower channels. When the valve rod is rotated to the second working position, the connection between the upper and lower channels is disconnected. The valve rod is rotated by the control part to realize the connection and closure of the upper and lower channels, which can avoid damage to the straw by squeezing and prevent the straw from being flattened and needing to be restored by hand when drinking.

Description

Technical Field

[0001] This utility model relates to a cup, and more particularly to a straw cup lid and cup with a sealing function. Background Technology

[0002] A water cup is a common water container used in daily life to hold water, beverages, tea, and other drinks. A water cup generally consists of a lid and a body, which are usually connected by threads. In addition to unscrewing the lid from the body, there are also ways to drink water using a straw, which does not require opening the entire lid.

[0003] For example, patent CN222898803U discloses a double-drink cup with an anti-accidental-touch flip-top lid, which includes a cup body and a lid assembly that is detachably fitted onto the upper part of the cup body via threads. The lid assembly includes a base, a direct-drinking flip-top, and a straw flip-top. The base is installed on the upper part of the cup body and has a direct-drinking spout and a straw inlet communicating with the inside of the cup body. One end of the direct-drinking flip-top is hinged to the upper part of the base, and one end of the straw flip-top is hinged to the upper part of the direct-drinking flip-top. The lid assembly also includes a first straw assembly fixedly installed on the direct-drinking flip-top and a second straw assembly inserted below the straw inlet and extending to the bottom of the cup body. The first straw assembly includes a drinking part, a positioning part, and a fixing part with an integrally formed structure. The first straw assembly is made of silicone. A baffle plate is provided inside the straw flip-top. When the straw flip-top and the direct-drinking flip-top are closed, the drinking part of the first straw assembly is squeezed and sealed by the baffle plate, so that no water flows out of the straw inlet, making it convenient to carry.

[0004] The existing structure of the straw sealing assembly on the cup lid generally involves setting a baffle plate on the straw flip cover. When the straw flip cover is closed, the baffle plate squeezes and seals the silicone straw. This method is very damaging to the straw, reduces its lifespan, and easily leaves a deep compression mark on the surface of the straw, making it inconvenient to drink from and requiring manual restoration. Utility Model Content

[0005] Based on the above, by setting a barrier plate on the straw flip cover, the barrier plate squeezes and seals the silicone straw when the straw flip cover is closed. This method is very damaging to the straw, reduces the straw's service life, and easily leaves a deep compression mark on the straw surface, making it inconvenient to drink from and requiring manual restoration. Therefore, this utility model provides a straw cup lid with a sealing function and a cup using the lid.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a straw cup lid with a sealing function, including a lid body, a drinking straw at the top of the lid body, an upper channel through the drinking straw, a lower channel below the upper channel on the lid body, an inner cavity between the upper and lower channels within the lid body, the inner cavity communicating with the lower end of the upper channel and the upper end of the lower channel respectively, a cylindrical valve stem inside the inner cavity, the valve stem being spaced between the upper and lower channels and capable of rotating around its own axis, a middle channel through the valve stem, a control part connected to the valve stem, a first opening at the top of the lid body communicating with the inner cavity, the control part extending from the first opening for controlling the rotation of the valve stem, and the valve stem having a first working position and a second working position.

[0007] When the valve stem rotates to the first working position, the middle channel connects the upper channel and the lower channel.

[0008] When the valve stem rotates to the second working position, the connection between the upper and lower channels is broken.

[0009] A further preferred embodiment of this utility model is as follows: the control part is fitted onto the valve stem, and the valve stem can be pulled out from the control part; the cover is provided with a second opening, which allows the valve stem to be inserted into or removed from the inner cavity; a cover plate is detachably installed at the second opening; and the first opening is used to allow the control part to be placed into or removed from the inner cavity.

[0010] A further preferred technical solution of this utility model is as follows: the cover is provided with an upper air hole and a lower air hole on the upper and lower sides of the inner cavity. The inner cavity is connected to the lower end of the upper air hole and the upper end of the lower air hole, respectively. The valve stem is spaced between the upper air hole and the lower air hole. The valve stem is provided with a middle air hole. When the valve stem is rotated to the first working position, the middle air hole connects the upper air hole and the lower air hole. When the valve stem is rotated to the second working position, the connection between the upper air hole and the lower air hole is disconnected.

[0011] A further preferred embodiment of this invention is as follows: the valve stem is provided with elastic sealing elements, at least a portion of which are distributed around the two end openings of the intermediate channel and the two end openings of the intermediate vent.

[0012] When the valve stem rotates to the first working position, the seals around the openings at both ends of the intermediate channel fit against the opening edges of the upper and lower channels, and the seals around the openings at both ends of the intermediate vent fit against the opening edges of the upper and lower vents.

[0013] When the valve stem rotates to the second working position, the seal blocks the upper channel, lower channel, upper vent, and lower vent to disconnect the connection between the upper and lower channels and between the upper and lower vents.

[0014] A further preferred embodiment of this utility model is as follows: the sealing element is a silicone sleeve fitted outside the valve stem, the silicone sleeve is provided with a plurality of annular ribs, the portion of the valve stem having a central channel and a central vent is surrounded by the annular ribs, the annular ribs are provided with a first through hole opposite to the opening at the end of the central channel and a second through hole opposite to the opening at the end of the central vent.

[0015] A further preferred embodiment of this utility model is as follows: the control part is provided with a limiting protrusion, and the inner wall of the inner cavity is provided with a limiting groove. The limiting protrusion is slidably placed in the limiting groove, and the limiting protrusion cooperates with the limiting groove to limit the range of rotation of the valve stem.

[0016] A further preferred technical solution of this utility model is as follows: the control unit includes a first body and a lever plate fixed on the first body. A slot is provided on the inner wall of the first body, and a block that cooperates with the slot is provided on the outer wall of the valve stem. One end of the first body is provided with an inlet for the block to enter the slot. The block is engaged in the slot to restrict the relative rotation of the first body and the valve stem.

[0017] A further preferred technical solution of this utility model is as follows: the top edge of the cover body is provided with a notch groove, the second opening is located in the notch groove, the inner walls on both sides of the notch groove are provided with slide rails, the cover plate is provided with slide grooves that cooperate with the slide rails on both sides, the slide rails are provided with recesses, and the slide grooves are provided with protrusions. When the cover plate is slidably inserted into the notch groove to cover the notch groove, the protrusions are engaged in the recesses to restrict the relative movement of the cover plate and the cover body.

[0018] A further preferred embodiment of this utility model is as follows: the inner cavity includes a first inner cavity, a second inner cavity, and a third inner cavity arranged sequentially from the inside to the outside. The first inner cavity is a circular inner cavity, and the inner end of the valve stem is inserted into the first inner cavity. A positioning groove is provided on the end face of the inner end of the valve stem. A positioning protrusion is provided on the first inner cavity, and the positioning protrusion is inserted into the positioning groove. The upper channel and the lower channel are both connected to the first inner cavity. The control part is placed in the second inner cavity, and the first opening is connected to the second inner cavity. The third inner cavity is connected to the notch groove. The outer end of the valve stem is provided with a ball head, and the ball head extends at least partially into the notch groove. There is space between the inner walls on both sides of the notch groove and the ball head for fingers to insert and grasp.

[0019] Another topic: cups, including the cup body and the straw cup lid with a sealing function.

[0020] Compared with the prior art, the advantages of this utility model are that an inner cavity is set in the cap body between the upper and lower channels, and a valve stem is set in the inner cavity. The valve stem is spaced between the upper and lower channels and can rotate around its own axis. The valve stem passes through a middle channel and is connected to a control part. The top of the cap body has a first opening that communicates with the inner cavity. The control part extends from the first opening to control the rotation of the valve stem. By controlling the rotation of the valve stem through the control part, the connection and closing of the upper and lower channels can be realized, thereby controlling the water output or sealing of the drinking straw. When the middle channel is connected to the upper and lower channels, the user can drink through the drinking straw. When the connection between the upper and lower channels is broken, the drinking straw is sealed and water will not flow out of the drinking straw. This structure eliminates the need to squeeze the straw to open and close, avoiding damage to the straw from squeezing and eliminating the need to manually restore the straw when sucking, thus improving the user experience. Controlled by the control part extending from the top of the cap body, the opening and closing of the drinking straw can be controlled with one hand, making operation more convenient. Attached Figure Description

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the cup lid when the valve stem is in the first working position.

[0023] Figure 2 A schematic diagram of the internal structure of the cup lid when the valve body is in the first working position;

[0024] Figure 3 A cross-sectional view of the cup lid when the valve body is in the first working position. Figure 1 ;

[0025] Figure 4 for Figure 3 Enlarged view of a portion at point A;

[0026] Figure 5 A cross-sectional view of the cup lid when the valve body is in the first working position. Figure 2 ;

[0027] Figure 6 This is a breakdown diagram of the various parts of the cup lid;

[0028] Figure 7 This is a structural diagram of the control unit;

[0029] Figure 8This is a schematic diagram of the cover structure;

[0030] Figure 9 for Figure 8 A magnified view of section B;

[0031] Figure 10 This is a schematic diagram of the valve stem structure;

[0032] Figure 11 This is a schematic diagram of the cover plate.

[0033] Figure 12 This is a schematic diagram of the cup lid when the valve stem is in the second working position.

[0034] Figure 13 A cross-sectional view of the cup lid when the valve stem is in the second working position. Figure 1 ;

[0035] Figure 14 for Figure 13 A magnified view of a portion at point C;

[0036] Figure 15 A cross-sectional view of the cup lid when the valve stem is in the second working position. Figure 2 .

[0037] In the diagram: 1. Cover; 2. Marking; 3. Cover plate; 4. Notch; 5. First opening; 6. Control unit; 7. Upper air vent; 8. Drinking straw; 9. Upper channel; 10. Connecting pipe; 11. Lower channel; 12. Lower air vent; 13. Centerline; 14. Inner cavity; 15. Valve stem; 16. Ball head; 17. Seal; 18. Annular groove; 19. Annular rib; 20. First through hole; 21. Middle channel; 22. Second through hole; 23. Middle air vent; 24. 25. Positioning protrusion; 26. Positioning groove; 27. First set body; 28. Paddle plate; 29. ​​Limiting protrusion; 30. Limiting groove; 31. Locking block; 32. Locking slot; 33. Inlet; 34. Slide rail; 35. Recess; 36. Second opening; 37. Top plate; 38. Side plate; 39. Slide groove; 40. Protrusion; 41. Cover plate body; 42. Bottom plate; 43. Clearance opening; 44. First inner cavity; 45. Second inner cavity; 46. Third inner cavity; 47. Straw. Detailed Implementation

[0038] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0039] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0040] The cup includes a lid and a body. The body has a cavity for containing liquid, and the lid is detachably attached to the body to seal the opening at the top of the body. Preferably, the lid is threaded onto the body.

[0041] Figures 1-15 As shown, the cup lid includes a lid body 1. A drinking tube 8 is provided at the top of the lid body 1. An upper channel 9 is provided through the drinking tube 8, which extends along the length of the drinking tube 8. The drinking tube 8 is used for the user to drink. A lower channel 11 is provided on the lid body 1 below the upper channel 9. An inner cavity 14 is provided inside the lid body 1 between the upper channel 9 and the lower channel 11. The inner cavity 14 is connected to the lower end of the upper channel 9 and the upper end of the lower channel 11 respectively. A cylindrical valve stem 15 is built into the inner cavity 14. The valve stem 15 is spaced between the upper channel 9 and the lower channel 11 and can rotate around its own axis 13. A middle channel 21 is provided through the valve stem 15. A control part 6 is connected to the valve stem 15. A first opening 5 is provided at the top of the lid body 1, which is connected to the inner cavity 14. The control part 6 extends from the first opening 5 to control the rotation of the valve stem 15. The valve stem 15 has a first working position and a second working position.

[0042] Figures 1-5 As shown, when the valve stem 15 is rotated to the first working position, the openings at both ends of the intermediate channel 21 are connected to the upper channel 9 and the lower channel 11 respectively, so that the upper channel 9 and the lower channel 11 are connected. At this time, the user can suck the liquid in the cup from the lower channel 11 by sucking the drinking tube 8, and then flow into the upper channel 9 after passing through the intermediate channel 21 and being sucked into the user's mouth.

[0043] Figures 12-15 As shown, when the valve stem 15 is rotated to the second working position, the openings at both ends of the middle channel 21 are rotated open from the position opposite to the upper channel 9 and the lower channel 11. At this time, the upper channel 9 and the lower channel 11 are disconnected, and the liquid in the cup cannot flow from the lower channel 11 into the upper channel 9, so that the liquid will not flow out of the drinking tube 8 when the cup is not in use, making it convenient for the cup to be carried and placed.

[0044] This patent uses the control unit 6 to rotate the valve stem 15 to connect and close the upper channel 9 and the lower channel 11, thereby controlling the water output or sealing of the drinking tube 8. When the middle channel 21 connects the upper channel 9 and the lower channel 11, the user can drink through the drinking tube 8. When the connection between the upper channel 9 and the lower channel 11 is broken, the drinking tube 8 is sealed, and water will not flow out of the drinking tube 8. This structure eliminates the need to squeeze the straw 47 to open and close, avoiding damage to the straw 47 from squeezing. It also avoids the need to manually restore the straw 47 when sucking because it has been flattened, thus improving the user experience. The control unit 6, which extends from the top of the cover 1, allows the opening and closing of the drinking tube 8 to be controlled with one hand, making operation more convenient.

[0045] The aforementioned lower channel 11 is used to connect the straw 47 located inside the cup. Specifically, the inner bottom of the cover 1 is provided with a downwardly protruding connecting tube 10, and the aforementioned lower channel 11 is formed inside the connecting tube 10. The connecting tube 10 is used to connect with the straw 47 inside the cup so that there is communication between the straw 47 and the lower channel 11, and the liquid inside the cup can be sucked into the lower channel 11 through the straw 47.

[0046] The intermediate channel 21 is opened radially along the valve stem 15.

[0047] The cover 1 has an upper vent 7 and a lower vent 12 located on the upper and lower sides of the inner cavity 14, respectively. The inner cavity 14 is connected to the lower end of the upper vent 7 and the upper end of the lower vent 12. The valve stem 15 is spaced between the upper vent 7 and the lower vent 12, and a central vent 23 is provided through the valve stem 15. The central vent 23 is opened radially along the valve stem 15. The upper vent 7 is connected to the external atmospheric environment, and the lower vent 12 is connected to the interior of the cover 1.

[0048] When the valve stem 15 is rotated to the first working position, the two ends of the middle air hole 23 are connected to the upper air hole 7 and the lower air hole 12 respectively, so as to connect the upper air hole 7 and the lower air hole 12. At this time, the inside of the cup body is in contact with the external atmospheric environment through the upper air hole 7, the lower air hole 12 and the middle air hole 23. The user drinks the liquid inside the cup body through the drinking straw 8. External air can enter the cup body from the upper air hole 7, the middle air hole 23 and the lower air hole 12 to balance the air pressure inside the cup body.

[0049] When the valve stem 15 is rotated to the second working position, the openings at both ends of the middle air hole 23 are rotated open from the position opposite to the upper air hole 7 and the lower air hole 12. At this time, the upper air hole 7 and the lower air hole 12 are disconnected. When the cup is tilted or inverted, the liquid in the cup will not flow from the lower air hole 12 into the upper air hole 7, so that the liquid will not flow out from the upper air hole 7 when the cup is not in use, making it convenient for the cup to be carried and placed.

[0050] The valve stem 15 is provided with elastic seals 17, and at least some of the seals 17 are distributed around the two ends of the intermediate channel 21 and the two ends of the intermediate vent 23.

[0051] When the valve stem 15 is rotated to the first working position, the seals 17 around the openings at both ends of the intermediate channel 21 fit with the opening edges of the upper channel 9 and the lower channel 11 to ensure the sealing between the channels when the intermediate channel 21 is connected to the upper channel 9 and the lower channel 11, preventing liquid from flowing into the inner cavity 14 from the gap between the intermediate channel 21 and the upper channel 9 and the lower channel 11 during drinking. The seals 17 around the openings at both ends of the intermediate air hole 23 fit with the opening edges of the upper air hole 7 and the lower air hole 12 to ensure the sealing between the air holes when the intermediate air hole 23 is connected to the upper air hole 7 and the lower air hole 12, preventing liquid in the cup from flowing into the inner cavity 14 from the gap between the intermediate air hole 23 and the upper air hole 7 and the lower air hole 12 when the valve stem 15 is in the first working position.

[0052] When the valve stem 15 is rotated to the second working position, the seal 17 blocks the upper channel 9, lower channel 11, upper vent 7 and lower vent 12 to disconnect the connection between the upper channel 9 and lower channel 11 and the upper vent 7 and lower vent 12. By using the elastic seal 17 to block the upper channel 9, lower channel 11, upper vent 7 and lower vent 12, the liquid in the cup body can be prevented from flowing out of the upper channel 9 or upper vent 7 along the gap when not in use, thus enhancing the sealing performance.

[0053] Figure 4 , Figure 10 , Figure 14 As shown, the sealing element 17 is a silicone sleeve that is fitted over the valve stem 15. The silicone sleeve is provided with a plurality of annular ribs 19. The portion of the valve stem 15 having a central channel 21 and a central air hole 23 is surrounded by the annular ribs 19. The annular ribs 19 are provided with a first through hole 20 that is opposite to the opening at the end of the central channel 21 and a second through hole 22 that is opposite to the opening at the end of the central air hole 23.

[0054] Preferably, an annular groove 18 is provided on the outer peripheral surface of the valve stem 15, and a silicone sleeve is fitted into the annular groove 18.

[0055] Figure 6 As shown, the control unit 6 is mounted on the valve stem 15, and the valve stem 15 can be pulled out from the control unit 6. The cover 1 has a second opening 36, which allows the valve stem 15 to be inserted into or removed from the inner cavity 14. A cover plate 3 is detachably installed at the second opening 36. The first opening 5 allows the control unit 6 to be placed into or removed from the inner cavity 14. Through the first opening 5 and the second opening 36, the valve stem 15 and the control unit 6 can be removed from the inner cavity 14, facilitating cleaning of the cup lid and ensuring hygiene.

[0056] During disassembly, remove the cover plate 3 from the cover body 1, and then pull the valve stem 15 outward from the second opening 36. During the process of pulling out the valve stem 15, the valve stem 15 is pulled out from the control part 6. After pulling out the valve stem 15, remove the control part 6 from the first opening 5 to complete the disassembly of the valve stem 15 and the control part 6. During installation, first insert the control part 6 into the inner cavity 14 from the first opening 5, and then insert the valve stem 15 into the inner cavity 14 from the second opening 36. During the insertion of the valve stem 15 into the inner cavity 14, it passes through the control part 6, and the valve stem 15 and the control part 6 are connected. After the valve stem 15 is fully inserted, cover the second opening 36 with the cover plate 3 to complete the installation.

[0057] Figure 7 As shown, preferably, the control unit 6 includes a first sleeve 26 and a lever 27 fixed on the first sleeve 26. The inner wall of the first sleeve 26 is provided with a groove 31, and the outer wall of the valve stem 15 is provided with a locking block 30 that cooperates with the groove 31. One end of the first sleeve 26 is provided with an inlet 32 ​​for the locking block 30 to enter the groove 31. When the valve stem 15 is inserted into the inner cavity 14 through the second opening 36, the valve stem 15 passes through the center of the first sleeve 26. During this process, the locking block 30 on the valve stem 15 is inserted into the groove 31 through the inlet 32 ​​to restrict the relative rotation of the first sleeve 26 and the valve stem 15, so that the rotation of the valve stem 15 can be controlled when the lever 27 is turned.

[0058] The width of the first opening 5 can restrict the left and right movement of the control unit 6.

[0059] Figure 5 , Figure 15 As shown, the control unit 6 is provided with a limiting protrusion 28, and the inner wall of the inner cavity 14 is provided with a limiting groove 29. The limiting protrusion 28 is slidably placed in the limiting groove 29, and the limiting protrusion 28 cooperates with the limiting groove 29 to limit the range of rotation of the valve stem 15.

[0060] For example, when the limiting protrusion 28 abuts against the inner wall of one end of the limiting groove 29, the valve stem 15 rotates to the first working position; when the limiting protrusion 28 abuts against the inner wall of the other end of the limiting groove 29, the valve stem 15 rotates to the second working position. Moving the lever 27 forward causes the first sleeve 26 to rotate the valve stem 15 in the forward direction until the limiting protrusion 28 abuts against the inner wall of one end of the limiting groove 29, at which point the valve stem 15 rotates to the first working position. Moving the lever 27 backward causes the first sleeve 26 to rotate the valve stem 15 in the reverse direction until the limiting protrusion 28 abuts against the inner wall of the other end of the limiting groove 29, at which point the valve stem 15 rotates to the second working position. This structure facilitates control of the valve stem 15's position.

[0061] The first opening 5 has markings 2 on both sides to correspond to the opening or closing of the drinking tube 8. Moving the lever 27 to the side indicating the open marking 2 controls the valve stem 15 to rotate to the first working position, and moving the lever 27 to the side indicating the closed marking 2 controls the valve stem 15 to rotate to the second working position.

[0062] Figure 8 , Figure 9 , Figure 11 As shown, the top edge of the cover 1 has a notch 4, and the second opening 36 is located within the notch 4. Slide rails 34 are provided on the inner walls of both sides of the notch 4. The cover plate 3 has sliding grooves 39 on both sides that mate with the slide rails 34. The slide rails 34 have recesses 35, and the sliding grooves 39 have protrusions 40. When the cover plate 3 is slidably inserted into the notch 4, the protrusions 40 engage with the recesses 35, restricting the relative movement of the cover plate 3 and the cover 1. During the sliding insertion of the cover plate 3 into the notch 4, elastic deformation occurs due to compression, allowing the protrusions 40 to enter the recesses 35. Similarly, during disassembly, the cover plate 3 is subjected to an external force pushing outward from the notch 4, causing the protrusions 40 and recesses 35 to compress each other and undergo elastic deformation, thus allowing the protrusions 40 to move out of the recesses 35, enabling the cover plate 3 to slide and be removed relative to the cover 1. The cover plate 3 is made of plastic, and the inherent elasticity of the plastic material allows the cover plate 3 to deform elastically when compressed against the cover 1.

[0063] The aforementioned inner cavity 14 includes a first inner cavity 44, a second inner cavity 45, and a third inner cavity 46 arranged sequentially from the inside to the outside. The first inner cavity 44 is a circular inner cavity, and the inner end of the valve stem 15 is inserted into the first inner cavity 44. A positioning groove 25 is provided on the end face of the inner end of the valve stem 15. The positioning groove 25 extends along the axis 13 of the valve stem 15. A positioning protrusion 24 is provided on the first inner cavity 44. The positioning protrusion 24 is inserted into the positioning groove 25 to support one end of the valve stem 15. The upper channel 9 and the lower channel 11 are both connected to the first inner cavity 44. The control part 6 is placed in the second inner cavity 45, and the first opening 5 is connected to the second inner cavity 45. The third inner cavity 46 is connected to the notch 4. The outer end of the valve stem 15 is provided with a ball head 16. The ball head 16 extends at least partially into the notch 4. There is space between the inner walls on both sides of the notch 4 and the ball head 16 for fingers to insert and grasp. The position of the ball head 16 makes it convenient for the user to apply force to pull the valve stem 15 out of the inner cavity 14. The second opening 36 connects the third inner cavity 46 and the notch 4.

[0064] The aforementioned upper vent 7 and lower vent 12 are also connected to the first inner cavity 44.

[0065] The cover plate 3 includes a cover plate body 41, a top plate 37 located at the top of the cover plate body 41, a bottom plate 42 located at the bottom of the cover plate body 41, and side plates 38 located on both sides of the cover plate body 41. The aforementioned sliding groove 39 is located on the outer surface of the side plates 38. The bottom plate 42 is provided with a clearance opening 43 for avoiding the ball head 16. The bottom of the notch groove 4 is provided with slots 33 corresponding to the bottom plate 42 portions on both sides of the clearance opening 43. When installing the cover plate 3, the cover plate 3 slides down along the side sliding rails 34 and is inserted into the notch groove 4. During the downward movement, the ball head 16 passes between the clearance openings 43 until the bottom plate 42 portions on both sides of the clearance opening 43 are inserted into the slots 33, thus completing the installation of the cover plate 3. At this time, the protrusion 40 is inserted into the recess 35, and the cover plate 3 covers the opening of the notch groove 4.

[0066] The foregoing description of the sealing straw cup lid and cup provided by this utility model has illustrated the principle and implementation of this utility model using specific examples. The descriptions of the embodiments above are merely for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A straw cup lid with sealing function, characterized in that, The device includes a lid, a drinking tube at the top of the lid with an upper channel extending through it, a lower channel below the upper channel on the lid, and an inner cavity within the lid between the upper and lower channels. The inner cavity communicates with the lower end of the upper channel and the upper end of the lower channel, respectively. A cylindrical valve stem is housed within the inner cavity, positioned between the upper and lower channels and capable of rotating around its own axis. The valve stem has a central channel and a control unit connected to it. A first opening at the top of the lid communicates with the inner cavity, and the control unit extends from the first opening to control the rotation of the valve stem. The valve stem has a first working position and a second working position. When the valve stem rotates to the first working position, the middle channel connects the upper channel and the lower channel. When the valve stem rotates to the second working position, the connection between the upper and lower channels is broken.

2. The sippy cup lid with sealing function of claim 1, wherein, The control unit is mounted on the valve stem, and the valve stem can be pulled out from the control unit. The cover has a second opening for inserting the valve stem into the inner cavity or removing it from the inner cavity. A cover plate is detachably installed at the second opening. The first opening is used for inserting the control unit into the inner cavity or removing it from the inner cavity.

3. The sippy cup lid with sealing functionality of claim 1, wherein, The cover has an upper air hole and a lower air hole located on the upper and lower sides of the inner cavity. The inner cavity is connected to the lower end of the upper air hole and the upper end of the lower air hole, respectively. The valve stem is spaced between the upper air hole and the lower air hole, and the valve stem has a middle air hole through it. When the valve stem is rotated to the first working position, the middle air hole connects the upper air hole and the lower air hole. When the valve stem is rotated to the second working position, the connection between the upper air hole and the lower air hole is disconnected.

4. The sippy cup lid with sealing functionality of claim 3, wherein, The valve stem is equipped with elastic seals, with at least a portion of the seals distributed around the two end openings of the intermediate channel and the two end openings of the intermediate vent. When the valve stem rotates to the first working position, the seals around the openings at both ends of the intermediate channel fit against the opening edges of the upper and lower channels, and the seals around the openings at both ends of the intermediate vent fit against the opening edges of the upper and lower vents. When the valve stem rotates to the second working position, the seal blocks the upper channel, lower channel, upper vent, and lower vent to disconnect the connection between the upper and lower channels and between the upper and lower vents.

5. The sippy cup lid with sealing functionality of claim 4, wherein, The sealing element is a silicone sleeve that is fitted over the valve stem. The silicone sleeve has multiple annular ribs. The portion of the valve stem with a central channel and a central vent is surrounded by the annular ribs. The annular ribs have a first through hole that is opposite to the opening at the end of the central channel and a second through hole that is opposite to the opening at the end of the central vent.

6. The straw cup lid with sealing function according to claim 1, characterized in that, The control unit is provided with a limiting protrusion, and the inner wall of the inner cavity is provided with a limiting groove. The limiting protrusion is slidably placed in the limiting groove, and the limiting protrusion cooperates with the limiting groove to limit the range of valve stem rotation.

7. The straw cup lid with sealing function according to claim 2, characterized in that, The control unit includes a first body and a lever plate fixed on the first body. The inner wall of the first body is provided with a slot, and the outer wall of the valve stem is provided with a locking block that cooperates with the slot. One end of the first body is provided with an inlet for the locking block to enter the slot. The locking block is locked into the slot to restrict the relative rotation of the first body and the valve stem.

8. The sippy cup lid with sealing functionality of claim 2, wherein, The top edge of the cover is provided with a notch, the second opening is located in the notch, the inner walls on both sides of the notch are provided with slide rails, the sides of the cover are provided with slide grooves that cooperate with the slide rails, the slide rails are provided with recesses, and the slide grooves are provided with protrusions. When the cover is slidably inserted into the notch and covers the notch, the protrusions are engaged in the recesses to restrict the relative movement of the cover and the cover.

9. The sippy cup lid with sealing functionality of claim 8, wherein, The inner cavity includes a first inner cavity, a second inner cavity, and a third inner cavity arranged sequentially from the inside to the outside. The first inner cavity is a circular inner cavity, and the inner end of the valve stem is inserted into the first inner cavity. A positioning groove is provided on the end face of the inner end of the valve stem. A positioning protrusion is provided on the first inner cavity and is inserted into the positioning groove. The upper channel and the lower channel are both connected to the first inner cavity. The control part is placed in the second inner cavity, and the first opening is connected to the second inner cavity. The third inner cavity is connected to the notch groove. The outer end of the valve stem is provided with a ball head, and the ball head extends at least partially into the notch groove. There is space between the inner walls on both sides of the notch groove and the ball head for fingers to insert and grasp.

10. A cup characterised in that Includes a cup body and a straw cup lid with a sealing function as described in any one of claims 1-9.

Images