One-way valve type sealing piece and straw cup

Abstract

The utility model relates to a one-way valve type sealing piece and a straw cup, the one-way valve type sealing piece comprises a body, the body is provided with a mounting part, a sealing part and a sealing part, the protruding part is of a hollow shell wall structure with the top closed and is of an annular body with at least one stage, the diameter of the annular body is gradually reduced from bottom to top, and a water outlet hole is formed in a step of the annular body. The valve part is used for opening or closing the water outlet hole, and the valve part protrudes out of the top of the annular body and is provided with a valve plate with an expanded outer diameter; after the valve part and the protruding part are sequentially and downwards folded and compressed through the deformable folding marks, an installation part used for installing the suction pipe is formed, the suction pipe and the water outlet hole are communicated, a one-way liquid outlet channel is formed, and opening and closing of the channel are controlled by the valve plate so that sealing of the suction pipe can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to straw cup technical field, concretely relates to a one-way valve type sealing element and straw cup. BACKGROUND

[0002] Straw cup is a special water cup usually used for drinking water by infants, children, has a straw in the middle, and has good sealing property and does not leak.

[0003] Such as patent number CN202023001876.8 (announcement number CN213849918U) the Chinese utility model patent discloses "straw cup", straw cup includes cup body, cup cover and straw, cup body is equipped with containing cavity, cup cover detachable installation is in cup body top, is used for covering containing cavity, and cup cover is equipped with air inlet structure, and the blocking piece is arranged on the air inlet structure, the blocking piece can move on the air inlet structure, open or close the air inlet structure, the straw is detachable installation in cup cover, and reach containing cavity in cup body.

[0004] The straw includes an upper section straw and a lower section straw, a second outer thread is arranged at a lower end of the upper section straw, a second inner thread is arranged at an upper end of the lower section straw, the upper section straw and the lower section straw are connected by cooperation of the second outer thread and the second inner thread, a containing groove is formed at a connection position of the upper section straw and the lower section straw, and a leakage prevention structure is arranged in the containing groove.

[0005] The leakage prevention structure includes a pressing piece and a second rubber plug, when the upper section straw is connected with the lower section straw, the pressing piece is pressed tightly by the lower end of the upper section straw in the containing groove, the second rubber plug is arranged at a lower end of the pressing piece, a water outlet hole is arranged on the pressing piece, a breakage is arranged on the second rubber plug, the breakage is arranged below the water outlet hole, and the breakage is in a closed state and can be opened under the action of liquid pressure or air pressure.

[0006] As can be seen from the above, the patent needs to arrange a cup cover, a leakage prevention structure, a first rubber ring, a second rubber ring and many other components to realize sealing of the cup body and the straw, so as to prevent water leakage, and many components are involved, and the breakage on the second rubber plug is in a cross-shaped structure, which is easy to break in a cold and hot alternating environment, has poor sealing property and causes water leakage. UTILITY MODEL CONTENTS

[0007] The first technical problem to be solved by the utility model is to provide a one-way valve type sealing element capable of sealing a straw in view of the status of the prior art.

[0008] The second technical problem to be solved by the utility model is to provide a straw cup applying the one-way valve type sealing element in view of the status of the prior art.

[0009] The utility model discloses a technical scheme for solving the first technical problem is as follows: a one-way valve type sealing element, characterized in that: the sealing element is integrally formed by using flexible elastic material, and it comprises a body, the body has:

[0010] The mounting portion is formed by folding and compressing the raised portion; the raised portion is a hollow shell wall structure with a closed top, is at least one annular body gradually reducing in diameter from bottom to top, and has a water outlet hole on the step of the annular body;

[0011] The valve portion is used for opening or closing the water outlet hole, and the valve portion protrudes from the top of the annular body and has a valve piece with an enlarged outer diameter;

[0012] After the valve portion and the raised portion are sequentially folded and compressed downward by using the deformable folding marks, the mounting portion for mounting the straw is formed, so that the straw is in communication with the water outlet hole and forms a one-way liquid outlet channel, and the opening and closing of the channel are controlled by the valve piece.

[0013] In order to facilitate the installation of the straw, the straw is divided into an upper straw and a lower straw, the mounting portion includes an upper mounting portion for connecting with the upper straw and a lower mounting portion for connecting with the lower straw, so that the upper straw and the lower straw are in communication with the water outlet hole. The upper straw can be directly installed on the upper mounting portion, or can be installed on the upper mounting portion by means of other components, such as the upper straw being installed on an intermediate component, and the intermediate component being installed on the upper mounting portion. Similarly, the lower straw can be directly installed on the lower mounting portion, or can be installed on the lower mounting portion by means of other components, such as the lower straw being installed on an intermediate component, and the intermediate component being installed on the lower mounting portion.

[0014] The annular body can have various structural forms, and preferably, the annular body includes a lower ring body, a middle ring body and an upper ring body connected in sequence and gradually reducing in diameter, the top of the middle ring body is provided with the water outlet hole along the circumferential direction, and the top of the upper ring body is in a closed state.

[0015] After the annular body is folded and compressed, the top of the lower ring body faces downward, the top of the middle ring body faces upward and is located in the lower ring body, and there is a space between the side of the lower ring body and the side of the middle ring body to form the upper mounting portion, the inner cavity of the middle ring body forms the lower mounting portion, the upper ring body and the valve portion are located in the middle ring body, the valve piece extends from the upper ring body and is located above the water outlet hole, the upper ring body can deform upward or downward, and the valve piece can move synchronously with the upper ring body to open or close the water outlet hole. When the upper ring body deforms upward or downward, the valve piece of the valve portion is guided to move, so as to open or close the water outlet hole. The annular body has a simple structure, and the mounting portion can be formed by simply pressing and folding.

[0016] In order to facilitate the pressing of the folding protrusion, the sequentially connected lower ring body, middle ring body, upper ring body and valve part are provided with deformable folding marks between adjacent parts, and the folding marks are annular ribs with thin shell walls.

[0017] Preferably, the longitudinal section of the valve part is in T shape, and has the valve piece and a valve column connected between the valve piece and the upper ring body; when the upper ring body is deformed upward or downward, the valve part moves together with the upper ring body, so that the valve piece is opened or closed to the water outlet hole.

[0018] In the above scheme, one of the mounting positions is that the body further comprises a cover part used for covering the container mouth, the cover part is provided with an opening, the protrusion is located at the opening of the cover part, and the protrusion is located in the opening of the cover part after being folded and compressed; the cover part is provided with an openable air inlet hole beside the ring body, and the air inlet hole penetrates the inner cavity of the container; the upper mounting part is used for mounting the upper straw, and the lower mounting part is used for mounting the lower straw.

[0019] In the above scheme, another form is that the upper mounting part is used for mounting a part provided with the upper straw, and the lower mounting part is used for mounting the lower straw; the body further comprises an air inlet part connected with the mounting part, and the air inlet part is provided with an openable air inlet.

[0020] The technical solution adopted by the utility model to solve the above-mentioned second technical problem is: a straw cup, characterized by comprising a cup body, an upper straw, a lower straw and the above-mentioned sealing element, the cup mouth of the cup body is located at the top of the cup body, and the cover part of the body can detachably cover the cup mouth of the cup body.

[0021] The upper straw and the lower straw are both vertically penetrating tubular, the upper straw is inserted on the upper mounting part, and the lower straw is inserted on the lower mounting part, a one-way liquid outlet channel is formed by the lower straw, the water outlet hole and the upper straw, and the opening and closing of the channel are controlled by the valve piece.

[0022] The cover part can cover the cup mouth of the cup body and plays a certain sealing role.

[0023] In order to protect and position the cover part, the straw cup further comprises a cup cover, the peripheral wall of the cup cover is sleeved on the outside of the cup body and detachably connected with the cup body, the top wall of the cup cover is provided with a perforation for the upper straw to pass through, and there is a gap between the peripheral wall of the upper straw and the side wall of the perforation, and the edge of the cover part is pressed between the cup cover and the cup body.

[0024] In order to make the cover part well cover the cup mouth of the cup body, the cover part of the sealing element is in the form of a sheet body with a planar upper surface.

[0025] In order to facilitate water absorption, preferably, the upper suction pipe comprises a pipe body and a plug-in part formed at the bottom of the pipe body, the plug-in part is plugged into the upper mounting part, the diameter of the plug-in part is larger than that of the pipe body, so that when water flows into the pipe body from the plug-in part, the flow area is reduced and the flow rate is increased, thereby facilitating water absorption; because the diameter of the pipe body is small, in order to prevent the valve disc from moving upward and completely blocking the pipe body, affecting the water flow, at least two convex ribs are arranged at the connection between the pipe body and the plug-in part, the valve disc can move upward to abut against the convex ribs, a water passing groove is formed between two adjacent convex ribs, and in the state that the valve disc abuts against the convex ribs, the valve disc opens the water outlet hole, and after water flows out of the water outlet hole, the water flows upward from the water passing groove into the pipe body.

[0026] Preferably, a limiting part is arranged on the outer peripheral wall of the upper suction pipe, a blocking part is arranged on the side wall of the upper mounting part, and in the state that the upper suction pipe is plugged into the upper mounting part, the blocking part abuts against the top wall of the limiting part, so that the upper suction pipe and the cover part are relatively fixed.

[0027] The lower suction pipe is tightly fitted with the lower plug-in part, so that the lower suction pipe and the cover part are relatively fixed.

[0028] Preferably, a ring-shaped flange extending downward and outward is further formed at the edge of the cover part of the sealing member, so that the sealing member arranged on the cup mouth of the cup body is tightly abutted against the inner wall of the cup mouth through the flange to realize sealing of the cup mouth.

[0029] The technical solution for solving the above-mentioned second technical problem is that: a suction cup, characterized by comprising a cup body, an upper suction pipe, a lower suction pipe, a cover part and the above-mentioned sealing member, the cup mouth of the cup body is located at the top of the cup body, the cover part is arranged on the cup mouth of the cup body, and the cover part is provided with a through hole corresponding to the air inlet and in communication with the air inlet.

[0030] The cover part is provided with a plug-in pipe capable of being plugged into the upper mounting part, the upper suction pipe is arranged on the cover part and is in communication with the plug-in pipe, the lower suction pipe is arranged on the lower mounting part, and the lower suction pipe, the plug-in pipe, the water outlet hole and the upper suction pipe form a one-way liquid outlet channel, and the opening and closing of the channel is controlled by the valve disc.

[0031] The upper suction pipe and the cover part can be designed in a split type, or the upper suction pipe and the cover part can be integrally formed.

[0032] In order to improve the connection firmness of the cover part and the cup body, the lower surface of the cover part is provided with a vertically extending annular pipe, the annular pipe is plugged into the cup mouth of the cup body and is connected with the cup mouth, and a sealing ring is further arranged between the top wall of the cover part and the cup body.

[0033] Compared with the prior art, the sealing member of the utility model is integrally formed by using a flexible elastic material, and the structure is simple.

[0034] After the valve part and the bulge part are sequentially folded and compressed by the foldable folding marks, a mounting part for mounting the straw is formed, so that the straw is communicated with the water outlet hole and a one-way liquid outlet channel is formed, and the opening and closing of the channel is controlled by the valve piece.

[0035] As can be seen from the above, the sealing piece is equivalent to a one-way valve, which not only plays a role of mounting the straw, but also plays a role of sealing the straw, without the need to specially set a sealing structure for the straw, involves few components, allows the user to suck water through the straw and prevents accidental water overflow, and is easy to manufacture by folding the bulge part. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is an outline schematic view of the embodiment 1 of the utility model;

[0037] Figure 2 It is an exploded schematic view of the embodiment 1 of the utility model; Figure 1

[0038] Figure 3 It is a sectional view (the valve piece closes the water outlet hole) of the embodiment 1 of the utility model; Figure 1

[0039] Figure 4 It is a structural schematic view of the sealing piece in an uncompressed state;

[0040] Figure 5 It is a schematic view of the sealing piece in a partially folded and compressed state;

[0041] Figure 6 It is a schematic view of the sealing piece in a folded and compressed mounting part forming state;

[0042] Figure 7 It is an exploded schematic view of the embodiment 2 of the utility model; Figure 3

[0043] Figure 8 It is an exploded schematic view of the straw and the sealing piece in the embodiment 2 of the utility model; Figure 3

[0044] It is a sectional view (the valve piece opens the water outlet hole) of the embodiment 2 of the utility model; Figure 9 Figure 1 It is a sectional view of the embodiment 2 of the utility model;

[0045] Figure 10 It is an enlarged view of A in the embodiment 2 of the utility model;

[0046] Figure 11 Figure 10 It is a schematic view of the sealing piece in a folded and compressed mounting part forming state of the embodiment 2 of the utility model;

[0047] Figure 12 It is a schematic view of the sealing piece in a folded and compressed mounting part forming state of the embodiment 2 of the utility model; Figure 11

[0048] ​​​​​​Figure 13 for Figure 11 A cross-sectional view of the seal in its unfolded, compressed state;

[0049] In the diagram: A. Seal; 1. Cup body; 2. Cup lid; 21. Perforation; 3. Cover; 30. Valve; 31. Flange; 32. Fold; 34. Upper mounting part; 341. Stop; 342. Bevel; 35. Lower mounting part; 36. Air inlet; 37. Valve plate; 38. Ring body; 381. Upper ring body; 382. Middle ring body; 383. Lower ring body; 384. Water outlet; 39. Valve column; 4. Upper suction tube; 41. Limiting part; 42. Tube body; 43. Insertion part; 44. Rib; 5. Lower suction tube; 6. Cover body; 61. Through hole; 62. Insertion tube; 63. Tube body; 64. Sealing ring; 7. Connector; 71. Air inlet. Detailed Implementation

[0050] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0051] like Figures 1 to 9 As shown, the straw cup of this preferred embodiment includes a cup body 1, a sealing element A, a cup lid 2, and a straw.

[0052] The seal is a one-piece component molded from a flexible, elastic material. It can be made of non-toxic materials such as silicone or rubber. Figures 4 to 6 As shown, the seal A includes a body, which includes a cover 3, a mounting part, and a valve part 30.

[0053] The lid 3 is used to cover the mouth of the container. In this embodiment, the mouth of the container refers to the mouth of the cup body 1. The mouth of the cup body 1 is located at the top of the cup body 1. The lid 3 is a sheet-like body with a flat upper surface. A flange 31 is formed at the edge of the lid 3, which is obliquely flared outward. The sealing member A installed on the mouth of the cup body 1 can achieve a tight seal with the inner wall of the mouth of the cup body 1 through the flange 31. When the cup body 1 is tilted, the sealing member A will not be recessed into the inside of the cup body 1, so as not to cause water leakage at the edge of the cup body 1.

[0054] Besides the method of sealing the cup mouth of the cup body 1 with the flange 31 described above, other sealing methods can also be used, such as sealing the lid 3 with a sealing ring. The flange 31 in this embodiment eliminates the need for a separate sealing ring to seal the cup mouth, resulting in a simple structure with fewer components.

[0055] The installation portion is formed by folding and compressing the raised portion in the center of the cover portion 3. The raised portion is a hollow shell wall structure with a closed top, and is a multi-stage annular body 38 that gradually decreases in diameter from bottom to top. In this embodiment, the annular body 38 includes a lower annular body 383, a middle annular body 382, and an upper annular body 381 connected in sequence and gradually decreasing in diameter. The top of the middle annular body 382 is provided with a water outlet hole 384 along the circumferential direction, and the top of the upper annular body 381 is closed. As can be seen, the annular body 38 of this embodiment has three stages, but is not limited to three stages, and must have at least one stage.

[0056] The stepped portion of the annular body 38 is provided with a water outlet hole 384. In this embodiment, the water outlet hole 384 is provided on the top of the middle annular body 382.

[0057] The valve portion 30 is used to open or close the water outlet hole 384. The valve portion 30 protrudes from the top of the annular body 38 and has a valve piece 37 with an enlarged outer diameter. In this embodiment, the longitudinal section of the valve portion 30 is T-shaped, has the valve piece 37, and a valve column 39 connected between the valve piece 37 and the upper annular body 381. The valve piece 37 is in the shape of a cap with a thin edge and a raised middle part.

[0058] The cover portion 3, the lower annular body 383, the middle annular body 382, the upper annular body 381, and the valve portion 30 are connected in sequence and are provided with deformable folding marks 32 between adjacent portions. The folding marks 32 are annular ribs with thin shell walls. The valve portion 30 and the raised portion can be sequentially folded and compressed into the opening 33 in the center of the cover portion 3 by using the deformable folding marks 32. After the annular body 38 is folded and compressed, the top of the lower annular body 383 is located below the cover portion 3, the top of the middle annular body 382 is located in the lower annular body 383, and there is a space between the side of the lower annular body 383 and the side of the middle annular body 382 to form the upper installation portion 34. The inner cavity of the middle annular body 382 forms the lower installation portion 35, and the upper annular body 381 and the valve portion 30 are located in the middle annular body 382. At this time, the sealing member A is in the original compressed state, the valve piece 37 protrudes from the upper annular body 381 and is located above the water outlet hole 384, the valve piece 37 covers the water outlet hole 384, and sealing is achieved. The upper annular body 381 can deform upward under the action of air pressure, and when there is no air pressure, the upper annular body 381 returns to the original compressed state by its own elastic force. In this process, the valve piece 37 can move synchronously with the upper annular body 381 to open and close the water outlet hole 384. In addition, in the original state, the length difference between the valve column 39 and the upper annular body 381 controls the sealing effect of the water outlet hole 384, and the hardness of the valve piece 37 itself can also control the sealing effect of the valve piece 37 on the water outlet hole 384.

[0059] In this embodiment, the height of the upper annular body 381 is less than the height of the middle annular body 382 and the lower annular body 383, so that the upper annular body 381 deforms upward or downward under the action of air pressure, driving the valve piece 37 and the valve column 39 to move synchronously to open or close the water outlet hole 384. Figure 3the state in which the valve piece 37 closes the water outlet hole 384, Figure 9 the state in which the valve piece 37 opens the water outlet hole 384.

[0060] The suction pipe comprises an upper suction pipe 4 and a lower suction pipe 5, both of which are vertically through tubular, the upper suction pipe 4 is inserted into the upper mounting portion 34, the lower suction pipe 5 is inserted into the lower mounting portion 35, the upper suction pipe 4 and the lower suction pipe 5 are communicated by the water outlet hole 384, the lower suction pipe 5, the water outlet hole 384 and the upper suction pipe 4 form a one-way liquid outlet channel, and the opening and closing of the channel is controlled by the valve piece 37.

[0061] From Figure 3 It can be seen from the above that the lower mounting portion 35 is located inside the upper mounting portion 34, the water outlet hole 384 is located directly above the lower mounting portion 35 and in the enclosed area of the upper mounting portion 34, so that the upper suction pipe 4 and the lower suction pipe 5 correspond in the vertical direction, the water flow path is short, and it is convenient for the user to suck the water in the cup body 1 into the mouth.

[0062] The outer peripheral wall of the upper suction pipe 4 is provided with a limiting portion 41, and the side wall of the upper mounting portion 34 is provided with a blocking portion 341, in the state that the upper suction pipe 4 is inserted into the upper mounting portion 34, the blocking portion 341 abuts against the top wall of the limiting portion 41, so that the upper suction pipe 4 and the cover portion 3 are relatively fixed. In addition, the edge of the bottom wall of the upper mounting portion 34 is a slope 342 inclined outward from top to bottom, which plays a guiding and extruding role for the insertion of the upper suction pipe 4.

[0063] The lower suction pipe 5 is tightly fitted with the lower insertion portion 35, so that the lower suction pipe 5 is tightly fitted with the sealing piece A.

[0064] In the embodiment, the upper suction pipe 4 comprises a pipe body 42 and an insertion portion 43 formed at the bottom of the pipe body 42, the limiting portion 41 described above is arranged on the insertion portion 43, the insertion portion 43 is inserted into the upper mounting portion 34, the diameter of the insertion portion 43 is larger than that of the pipe body 42, and the pipe body 42 is conical and gradually shrinks in diameter from bottom to top, so that the flow area decreases and the flow velocity increases during the water flow, which is convenient for the user to suck water.

[0065] In order to prevent the valve piece 37 from moving upward to completely block the pipe body 42 and affect the water flow in the upper suction pipe 4, at least two protruding ribs 44 are arranged at the connection between the pipe body 42 and the insertion portion 43, the valve piece 37 can move upward to abut against the protruding ribs 44, a water passing groove is formed between adjacent two protruding ribs 44, in the state that the valve piece 37 abuts against the protruding ribs 44, the valve piece 37 opens the water outlet hole 384, after the water flow flows out from the water outlet hole 384, the water flow flows upward from the water passing groove into the pipe body 42.

[0066] The cover part 3 is provided with a vertical through air inlet hole 36 beside the ring body 38, that is, the air inlet hole 36 is beside the upper mounting part 34 and the lower mounting part 35. In the embodiment, the air inlet hole 36 is in the form of a cross, and the air inlet hole 36 can be in a closed state to achieve sealing. Specifically, the air inlet hole 36 is in a closed state when not subjected to external force, and the air inlet hole 36 is in an open state when subjected to hydraulic or pneumatic impact. The structure of the air inlet hole 36 is a prior art.

[0067] The cup cover 2 is open at the bottom, and the top wall of the cup cover 2 is provided with a perforation 21 through which the pipe body 42 of the upper straw 4 passes, and there is a gap between the outer peripheral wall of the upper straw 4 and the side wall of the perforation 21. The peripheral wall of the cup cover 2 is sleeved on the outside of the cup body 1 and detachably connected to the cup body 1. In the embodiment, the cup cover 2 is threadedly connected to the cup body 1, which is convenient to disassemble and assemble. The cup cover 2 and the cup body 1 can also be connected in other ways, such as being buckled on the cup body 1.

[0068] The edge of the cover part 3 is extruded between the cup cover 2 and the cup body 1 to position the sealing element A, and the cup cover 2 can also prevent the sealing element A from directly contacting the outside world and being easily damaged.

[0069] The assembly method of the straw cup of the embodiment includes the following steps:

[0070] (1) The valve part 30 and the raised part are pressed, and the valve part 30 and the raised part are sequentially folded and compressed into the opening 33 in the center of the cover part 3 by means of the foldable folding mark 32. After being folded and compressed, the upper mounting part 34 for inserting the upper straw 4 and the lower mounting part 35 for inserting the lower straw 5 are formed, and at this time the valve sheet 37 shields the water outlet hole 384;

[0071] The specific pressing steps are as follows: for the sealing element A in the unfolded and pressed state shown in Figure 4 , the valve sheet 37 is first pressed, so that the upper ring body 381 is depressed as a whole downward, and the valve column 39 is driven into the middle ring body 382, and the valve sheet 37 closes the water outlet hole 384 on the middle ring body 382, as shown in Figure 5 ; then the middle ring body 382 is continuously pressed downward until the top of the lower ring body 383 is located below the cover part 3 downward, and the top of the middle ring body 382 is located in the lower ring body 383 upward, forming the upper mounting part 34 and the lower mounting part 35, at this time the sealing element A is in the state capable of being assembled with the upper straw 4 and the lower straw 5, as shown in Figure 6 ;

[0072] (2) The upper straw 4 is inserted into the upper mounting part 34, and the lower straw 5 is inserted into the lower mounting part 35, at this time the upper straw 4 and the lower straw 5 are communicated by the water outlet hole 384, the lower straw 5, the water outlet hole 384 and the upper straw 4 form a one-way liquid outlet channel, and the opening and closing of the channel is controlled by the valve sheet 37;

[0073] (3) The cover part 3 is pressed against the top wall of the cup body 1, and the lower straw 5 extends into the cup body 1;

[0074] (4) Finally, the upper straw 4 passes through the perforation 21 on the cup cover 2, and then the cup cover 2 is installed on the top of the cup body 1, as shown in the state of Figure 1 、 3 .

[0075] The working process of the straw cup of the embodiment is as follows:

[0076] When the straw cup is assembled, the sealing piece A is in a folded and compressed state, and the straw cup is in a fully sealed state. The flange 31 of the sealing piece A abuts against the inner wall of the cup body 1 to form a seal of the cup body 1. The annular body 38 and the valve piece 37 of the sealing piece A are folded and compressed into the opening 33 of the sealing piece A. At this time, the valve piece 37 shields the water outlet hole 384 of the annular body 38 to form a seal of the straw.

[0077] When the user drinks water using the straw, air enters from the gap between the upper straw 4 and the perforation 21, causing the air inlet hole 36 to open, so that the air pressure inside and outside the cup body 1 is kept consistent, allowing the user to drink water using the straw. The suction of the user on the upper straw 4 causes the air pressure in the upper straw 4 to change, and the upper annular body 381 starts to deform upward under the influence of the pressure, driving the valve piece 37 to move upward to open the water outlet hole 384. At this time, the upper straw 4, the lower straw 5, and the water outlet hole 384 are connected, and the valve piece 37 abuts against the convex rib 44 of the upper straw 4 to form a water flow channel.

[0078] The user continues to drink water using the straw, and the water flow flows out of the water outlet hole 384, passes through the water flow channel into the upper straw 4, and finally enters the user's mouth. When the user finishes drinking water, the air pressure in the upper straw 4 returns to normal, the upper annular body 381 returns to the original compressed state, driving the valve piece 37 to move downward together, so that the valve piece 37 closes the water outlet hole 384, and thus the straw cup returns to the sealed state.

[0079] In summary, the embodiment forms a one-way valve by assembling a flexible piece that can be folded and deformed with the upper straw 4 and the lower straw 5, and covers the cup opening of the cup body 1 with good sealing. In other words, the embodiment simultaneously realizes the double sealing of the water cup and the straw by only using one sealing piece A, and has a simple and compact structure and multiple functions.

[0080] Embodiment 2

[0081] As shown in Figures 10 to 13 , compared with embodiment 1, the embodiment does not provide a cup cover 2, but provides a cover part 6. The body of the embodiment includes an air inlet piece, a mounting part, and a valve part 30, but does not have a cover part 3.

[0082] In the embodiment, the cover 6 covers the cup mouth of the cup body 1, the air inlet member 7 is integrally connected with the mounting portion, the air inlet member 7 is provided with an openable air inlet 71, the cover 6 is provided with a through hole 61 corresponding to the air inlet 71, and the hole formed by the air inlet 71 and the through hole 61 has the same function as the air inlet hole 36 in the first embodiment.

[0083] The annular body 38 in the embodiment has the same structure as the annular body 38 in the first embodiment, the mounting portion is also formed with the upper mounting portion 34 and the lower mounting portion 35, the cover 6 is provided with a pipe 62 which can be inserted into the upper mounting portion 34, the upper suction pipe 4 is arranged on the cover 6 and communicates with the pipe 62, the lower suction pipe 5 is arranged on the lower mounting portion 35, the lower suction pipe 5, the pipe 62, the water outlet hole 384 and the upper suction pipe 4 form a one-way water outlet channel, and the opening and closing of the channel is controlled by the valve piece 37. In the embodiment, the upper suction pipe 4 and the cover 6 are integrally formed, and of course, they can also be designed separately.

[0084] The lower surface of the cover 6 is provided with a vertically extending annular pipe 63 which is inserted into the cup mouth of the cup body 1 and is threadedly connected with the cup mouth to position the cover 6 and improve the firmness of the cooperation between the cover 6 and the cup body 1. A sealing ring 64 is further arranged between the cover 6 and the top wall of the cup body 1 to prevent water leakage.

[0085] In the first embodiment, the upper suction pipe 4 is directly inserted into the upper mounting portion 34, and the lower suction pipe 5 is directly inserted into the lower mounting portion 35. In the embodiment, the upper mounting portion 34 is used for inserting the pipe 62 of the cover 6, and the lower mounting portion 35 is used for inserting the lower suction pipe 5. It can be seen that the lower mounting portion 35 in the embodiment has the same function as the first embodiment, and the upper mounting portion 34 is not directly used for inserting the upper suction pipe 4, but is used for connecting the cover 6 and the upper suction pipe 4. In other words, in the first embodiment, the upper suction pipe 4 is directly connected with the upper mounting portion 34, and in the second embodiment, the upper suction pipe 4 is indirectly connected with the upper mounting portion 34 through the pipe 62.

[0086] The working process of the suction cup in the embodiment is as follows:

[0087] When the user drinks water by using the suction pipe, air enters the through hole 61 to open the air inlet 71, so that the air pressure inside and outside the cup body 1 is kept consistent, and the user can drink water by using the suction pipe. The suction of the user on the upper suction pipe 4 causes the air pressure in the upper suction pipe 4 to change, the upper annular body 381 starts to deform upward under the influence of the pressure by the elasticity of itself, and drives the valve piece 37 to move upward to open the water outlet hole 384. At this time, the upper suction pipe 4, the lower suction pipe 5 and the water outlet hole 384 are communicated to form a water flow channel.

[0088] In the description of the utility model, need understanding is, the term '' center'', '' longitudinal direction'', '' transverse direction'', '' length'', '' width'', '' thickness'', '' upper'', '' lower'', '' front'', '' rear'', '' left'', '' right'', '' vertical'', '' horizontal'', '' top'', '' bottom'' '' inner'', '' outer'', '' clockwise'', '' counterclockwise'', '' axial direction'', '' radial direction'', '' circumferential direction'' etc. Indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicated or implied that the device or element indicated must have a particular orientation, a particular orientation and operation, since the disclosed embodiment of the utility model can be arranged in different directions, so these orientation terms are only as an illustration and should not be regarded as a limitation, for example '' upper'', '' lower'' not necessarily be limited to the direction opposite or consistent with the direction of gravity.

Claims

1. A one-way valve seal, characterized by: The sealing member is integrally formed by using a flexible elastic material, and comprises a body having: a mounting portion formed by folding and compressing the raised portion, the raised portion being a hollow shell wall structure with a closed top, being at least one level of ring body (38) gradually reducing in diameter from bottom to top, and having a water outlet hole (384) on the step of the ring body (38); a valve portion (30) for opening or closing the water outlet hole (384), the valve portion (30) protruding from the top of the ring body (38) and having a valve piece (37) with an enlarged diameter; After the valve portion (30) and the raised portion are sequentially folded and compressed by the deformable folding mark (32), a mounting portion for mounting the suction tube is formed, so that the suction tube is in communication with the water outlet hole (384) and forms a one-way liquid outlet channel, and the opening and closing of the channel is controlled by the valve piece (37).

2. The one-way valve seal of claim 1, wherein: The mounting portion includes an upper mounting portion (34) for connecting with the upper suction tube (4) and a lower mounting portion (35) for connecting with the lower suction tube (5), so that the upper suction tube (4) and the lower suction tube (5) are in communication with the water outlet hole (384).

3. The one-way valve seal of claim 2, wherein: The ring body (38) includes sequentially connected and gradually reduced in diameter lower ring body (383), middle ring body (382) and upper ring body (381), and the top of the middle ring body (382) is provided with the water outlet hole (384) along the circumference, and the top of the upper ring body (381) is closed; After the ring body (38) is folded and compressed, the top of the lower ring body (383) is downward, the top of the middle ring body (382) is upward in the lower ring body (383), and there is a gap between the side of the lower ring body (383) and the side of the middle ring body (382) to form the upper mounting portion (34), the inner cavity of the middle ring body (382) forms the lower mounting portion (35), the upper ring body (381) and the valve portion (30) are located in the middle ring body (382), and the valve piece (37) protrudes from the upper ring body (381) and is located above the water outlet hole (384), the upper ring body (381) can deform upward or downward, and the valve piece (37) can move synchronously with the upper ring body (381) to open and close the water outlet hole (384).

4. The one-way valve seal of claim 3, wherein: The sequentially connected lower ring body (383), middle ring body (382), upper ring body (381) and valve portion (30) are provided with deformable folding marks (32) between adjacent ones, and the folding marks (32) are annular ribs with thin shell walls.

5. The one-way valve seal of claim 3, wherein: The longitudinal section of the valve portion (30) is T-shaped, having the valve piece (37) and a valve column (39) connected between the valve piece (37) and the upper ring body (381). The longitudinal section of the valve portion (30) is T-shaped, having the valve piece (37) and a valve column (39) connected between the valve piece (37) and the upper ring body (381).

6. The one-way valve seal of any one of claims 2-5, wherein: The body further comprises a cover part (3) for covering the mouth of the container, the cover part (3) having an opening (33), the protruding part being located at the opening (33) of the cover part (3) and being folded and compressed in the opening (33) of the cover part (3); the cover part (3) is provided with an openable air inlet hole (36) located beside the annular body (38), the air inlet hole (36) penetrating the inner cavity of the container; the upper mounting part (34) is used for mounting the upper suction pipe (4), and the lower mounting part (35) is used for mounting the lower suction pipe (5).

7. The one-way valve seal of any one of claims 2-5, wherein: The body further comprises an air inlet member (7) connected to the mounting part, the air inlet member (7) being provided with an openable air inlet (71); the upper mounting part (34) is used for mounting a part provided with the upper suction pipe (4), and the lower mounting part (35) is used for mounting the lower suction pipe (5).

8. A straw cup characterized by: The cup body (1) has a cup mouth located at the top of the cup body (1), and the cover part (3) detachably covers the cup mouth of the cup body (1); the upper suction pipe (4) and the lower suction pipe (5) are both vertically penetrating tubular, the upper suction pipe (4) is inserted into the upper mounting part (34), and the lower suction pipe (5) is inserted into the lower mounting part (35); the lower suction pipe (5), the water outlet hole (384) and the upper suction pipe (4) form a one-way liquid outlet channel, and the opening and closing of the channel are controlled by the valve plate (37). The cup further comprises a cup cover (2), the peripheral wall of the cup cover (2) is sleeved on the outside of the cup body (1) and detachably connected to the cup body (1), the top wall of the cup cover (2) is provided with a perforation (21) for the upper suction pipe (4) to pass through, and there is a gap between the outer peripheral wall of the upper suction pipe (4) and the side wall of the perforation (21), and the edge of the cover part (3) is pressed between the cup cover (2) and the cup body (1).

9. The straw cup of claim 8, wherein: The cover part (3) of the sealing member (A) is a sheet-shaped body with a planar upper surface.

10. The straw cup of claim 8, wherein: The upper suction pipe (4) comprises a pipe body (42) and an insertion part (43) formed at the bottom of the pipe body (42), the insertion part (43) is inserted into the upper mounting part (34), the diameter of the insertion part (43) is larger than the diameter of the pipe body (42), at least two protruding ribs (44) are arranged at the connection between the pipe body (42) and the insertion part (43), the valve plate (37) can be moved upward to abut against the protruding ribs (44), a water passing groove is formed between two adjacent protruding ribs (44), and the valve plate (37) opens the water outlet hole (384) in the state of abutting against the protruding ribs (44).

11. The straw cup of claim 8, wherein: The outer peripheral wall of the upper suction pipe (4) is provided with a limiting part (41), the side wall of the upper mounting part (34) is provided with a blocking part (341), and in the state that the upper suction pipe (4) is inserted into the upper mounting part (34), the blocking part (341) abuts against the top wall of the limiting part (41).

12. The straw cup of claim 8, wherein: The lower suction pipe (5) is tightly fitted with the lower mounting part (35). ​ 13. The straw cup of claim 8, wherein: The cover part (3) of the sealing member (A) is further formed with a flange (31) extending outwardly and downwardly at the edge thereof, so that the sealing member (A) mounted on the cup opening of the cup body (1) is tightly contacted with the inner wall of the cup opening through the flange (31) to realize the sealing of the cup opening.

14. A straw cup characterized by: The cup body (1), the upper suction pipe (4), the lower suction pipe (5), the cover body (6) and the one-way valve type sealing member (A) of claim 7 are comprised, the cup opening of the cup body (1) is located at the top of the cup body (1), the cover body (6) is covered on the cup opening of the cup body (1), and the cover body (6) is provided with a through hole (61) corresponding to the air inlet (71) in communication; The cover body (6) is provided with a pipe (62) which can be inserted into the upper mounting part (34), the upper suction pipe (4) is arranged on the cover body (6) and communicates with the pipe (62), the lower suction pipe (5) is mounted on the lower mounting part (35), the lower suction pipe (5), the pipe (62), the water outlet hole (384) and the upper suction pipe (4) constitute a one-way liquid outlet channel, and the opening and closing of the channel is controlled by the valve plate (37).

15. The straw cup of claim 14, wherein: The upper suction pipe (4) and the cover body (6) are integrally formed.

Images