One-way valve type sealing piece and straw cup

Abstract

The invention relates to a one-way valve type sealing piece and a straw cup, the one-way valve type sealing piece comprises a body, and the body is provided with a mounting part formed by folding and compressing a protruding 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 invention relates to the technical field of straw cups, and in particular to a one-way valve type sealing component and a straw cup. Background Art

[0002] A sippy cup is a special water cup usually used by infants and children for drinking water. It has a straw in the middle and has good sealing properties and does not leak.

[0003] For example, the "Straw Cup" disclosed in the Chinese utility model patent with patent number CN202023001876.8 (publication number CN213849918U) comprises a cup body, a cup lid and a straw. The cup body is provided with a accommodating cavity, and the cup lid is detachably mounted on the top of the cup body to cover the accommodating cavity. The cup lid is provided with an air intake structure, and a baffle is provided on the air intake structure. The baffle can be moved on the air intake structure to open or close the air intake structure. The straw is detachably mounted on the cup lid and extends into the accommodating cavity of the cup body.

[0004] The straw comprises an upper straw and a lower straw, the lower end of the upper straw is provided with a second external thread, the upper end of the lower straw is provided with a second internal thread, the upper straw and the lower straw are connected by the second external thread cooperating with the second internal thread, a receiving groove is formed at the connection between the upper straw and the lower straw, and a leak-proof structure is provided in the receiving groove.

[0005] The anti-leakage structure includes a tightening piece and a second rubber plug; when the upper straw is connected to the lower straw, the lower end of the upper straw tightens the tightening piece in the accommodating groove; the second rubber plug is installed at the lower end of the tightening piece, the tightening piece is provided with a water outlet hole, and the second rubber plug is provided with a breach, the breach is provided below the water outlet hole, and the breach is in a closed state and can be opened under the action of hydraulic or pneumatic pressure.

[0006] As can be seen from the above, this patent requires the provision of a cup cover, a leak-proof structure, a first rubber ring, a second rubber ring and many other components to achieve the sealing of the cup body and the straw to prevent water leakage. Many components are involved, and the breach on the second rubber plug is a cross-shaped structure. In an alternating hot and cold environment, the cross-shaped breach is easy to break, and the sealing is poor, causing water leakage. Summary of the invention

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

[0008] The second technical problem to be solved by the present invention is to provide a straw cup using the one-way valve seal according to the current state of the prior art.

[0009] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a one-way valve type seal, characterized in that: the seal is an integral piece formed by a flexible elastic material, and includes a body, and 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, and is in the form of an annular body with at least one level of gradually decreasing diameter from bottom to top, and a water outlet is provided on the step of the annular body;

[0011] A valve portion, used to open or close the water outlet, the valve portion protrudes from the top of the annular body and has a valve plate with an enlarged outer diameter;

[0012] The valve portion and the raised portion are folded and compressed downward in sequence using deformable folding marks to form an installation portion for installing a straw, so that the straw is connected to the water outlet and forms a one-way liquid outlet channel, and the opening and closing of the channel is controlled by the valve plate.

[0013] In order to facilitate the installation of the straw, the straw is divided into an upper straw and a lower straw, and the installation part includes an upper installation part for connecting with the upper straw and a lower installation part for connecting with the lower straw, so that the upper straw and the lower straw are connected by the water outlet. The upper straw can be directly installed on the upper installation part, or it can be installed on the upper installation part with the help of other parts, such as the upper straw is installed on the middle part, and the middle part is installed on the upper installation part; similarly, the lower straw can be directly installed on the lower installation part, or it can be installed on the lower installation part with the help of other parts, such as the lower straw is installed on the middle part, and the middle part is installed on the lower installation part.

[0014] The annular body may have a variety of structural forms. Preferably, the annular body comprises a lower annular body, a middle annular body and an upper annular body which are connected in sequence and gradually reduce in diameter, and the top of the middle annular body is provided with the water outlet along its circumference, and the top of the upper annular body is closed;

[0015] After the annular body is folded and compressed, the top of the lower annular body faces downward, the top of the middle annular body faces upward and is located in the lower annular body, and there is a gap between the side of the lower annular body and the side of the middle annular body to form the upper mounting portion, the inner cavity of the middle annular body forms the lower mounting portion, the upper annular body and the valve portion are located in the middle annular body, and the valve plate extends from the upper annular body and is located above the water outlet, the upper annular body can produce an upward or downward deformation, and the valve plate can move synchronously with the upper annular body to open and close the water outlet. When the upper annular body is deformed upward or downward, the valve plate of the valve portion is guided to move, thereby opening or closing the water outlet; the annular body has a simple structure, and the mounting portion can be formed by simply pressing and folding.

[0016] In order to facilitate pressing the folded raised portion, the lower ring body, the middle ring body, the upper ring body and the valve portion, which are connected in sequence, are provided with deformable folding marks between adjacent ones, and the folding marks are annular ribs with thinner shell walls.

[0017] Preferably, the longitudinal section of the valve portion is T-shaped, having the valve plate and a valve column connected between the valve plate and the upper ring body. When the upper ring body is deformed upward or downward, the valve portion moves together with the upper ring body, so that the valve plate opens or closes the water outlet.

[0018] In the above scheme, one form of the installation part is: the main body also includes a cover part for covering the container mouth, the cover part has an opening, the raised part is located at the opening of the cover part, and the raised part is located in the opening of the cover part after being folded and compressed; the cover part is provided with an openable and closable air inlet hole located beside the annular body, and the air inlet hole passes through the inner cavity of the container; the upper installation part is used to install the upper straw, and the lower installation part is used to install the lower straw.

[0019] In the above scheme, another form is: the upper mounting part is used to install the component with an upper suction pipe, and the lower mounting part is used to install the lower suction pipe; the main body also includes an air intake part connected to the mounting part, and the air intake part is provided with an air inlet that can be opened and closed.

[0020] The technical solution adopted by the present invention to solve the second technical problem is: a straw cup, characterized in that it includes a cup body, an upper straw, a lower straw and the above-mentioned sealing member, the cup mouth of the cup body is located at the top of the cup body, and the cover of the body can detachably cover the cup mouth of the cup body;

[0021] The upper suction pipe and the lower suction pipe are both vertically penetrating tubes. The upper suction pipe is inserted on the upper mounting part, and the lower suction pipe is inserted on the lower mounting part. The lower suction 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 plate.

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

[0023] In order to protect and position the cover, the straw cup also includes a cup cover, the peripheral wall of the cup cover is sleeved on the outside of the cup body and the two are detachably connected, the top wall of the cup cover is provided with a through hole for the upper straw to pass through, and there is a gap between the outer peripheral wall of the upper straw and the side wall of the through hole, and the edge of the cover is squeezed between the cup cover and the cup body.

[0024] In order to enable the cover to cover the mouth of the cup body well, the cover of the sealing member is in the form of a sheet with a flat upper surface.

[0025] In order to facilitate water absorption, preferably, the upper suction pipe includes a tube body and an insertion part formed at the bottom of the tube body, the insertion part is inserted in the upper mounting part, and the diameter of the insertion part is larger than the diameter of the tube body, so that when water flows into the tube body from the insertion part, the flow area is reduced and the flow rate is increased, so as to facilitate water absorption; because the diameter of the tube body is small, in order to prevent the valve plate from completely blocking the tube body after moving upward and affecting the flow of water, at least two ribs are provided at the connection between the tube body and the insertion part, the valve plate can move upward to abut against the ribs, and a water groove is formed between two adjacent ribs. When the valve plate and the ribs are abutted, the valve plate opens the water outlet, and after the water flows out of the water outlet, it flows upward from the water groove to the tube body.

[0026] Preferably, a limiting portion is provided on the outer peripheral wall of the upper suction pipe, and a blocking portion is provided on the side wall of the upper mounting portion. When the upper suction pipe is inserted into the upper mounting portion, the blocking portion presses against the top wall of the limiting portion, so that the upper suction pipe and the cover portion are relatively fixed;

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

[0028] Preferably, a flange that expands obliquely downward and outward is formed at the edge of the cover of the seal, so that the seal installed on the mouth of the cup body can tightly abut against the inner wall of the mouth of the cup through the flange to achieve sealing of the mouth of the cup.

[0029] The technical solution adopted by the present invention to solve the above second technical problem is: a straw cup, characterized in that it comprises a cup body, an upper straw, a lower straw, a cover body and the above sealing member, the cup mouth of the cup body is located at the top of the cup body, the cover body is arranged on the cup mouth of the cup body, and the cover body is provided with a through hole corresponding to the air inlet;

[0030] The cover body is provided with an insert pipe which can be inserted into the upper mounting part, the upper suction pipe is arranged on the cover body and is connected with the insert pipe, the lower suction pipe is installed on the lower mounting part, the lower suction pipe, the insert pipe, the water outlet hole and the upper suction pipe constitute a one-way liquid outlet channel, and the opening and closing of the channel is controlled by the valve plate.

[0031] The upper suction tube and the cover body may be designed as separate parts, or may be integrally formed with the cover body.

[0032] In order to improve the connection reliability between the cover body and the cup body, a vertically extending annular tube is provided on the lower surface of the cover body, the annular tube is inserted into the cup mouth of the cup body and the two are connected, and a sealing ring is also provided between the cover body and the top wall of the cup body.

[0033] Compared with the prior art, the advantages of the present invention are as follows: the sealing element of the present invention is integrally formed by using a flexible elastic material and has a simple structure.

[0034] The valve part and the raised part are folded and compressed downward in sequence by using deformable folding marks to form an installation position for installing a straw, so that the straw is connected with the water outlet and forms a one-way liquid outlet channel, and the opening and closing of the channel is controlled by the valve sheet.

[0035] As can be seen from the above, the seal of the present invention is equivalent to a one-way valve, which not only plays the role of installing the straw, but also plays the role of sealing the straw. There is no need to set a special sealing structure for the straw, and fewer parts are involved. The seal allows the user to absorb water through the straw and can prevent water from accidentally overflowing; and it can be formed by folding the raised part, which is easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the appearance of Example 1 of the present invention;

[0037] Figure 2 for Figure 1 Schematic diagram of the decomposition of

[0038] Figure 3 for Figure 1 Cross-sectional view (the valve disc closes the water outlet);

[0039] Figure 4 It is a schematic diagram of the structure of the seal in an unfolded and compressed state;

[0040] Figure 5 It is a schematic diagram of the seal in a partially folded and compressed state;

[0041] Figure 6 is a schematic diagram of the sealing member in a state where the sealing member is folded and compressed to form a mounting portion;

[0042] Figure 7 for Figure 3 Schematic diagram of the decomposition of

[0043] Figure 8 for Figure 3 An exploded view of the straw and seal in FIG.

[0044] Fig. 9 for Figure 1 Cross-sectional view (valve disc opens water outlet);

[0045] Fig.10 is a cross-sectional view of embodiment 2 of the present invention;

[0046] Fig.11 for Fig.10 A magnified image of point A;

[0047] Fig.12 for Fig.11 A schematic diagram of a sealing member in a state where the sealing member is folded and compressed to form a mounting portion;

[0048] Fig.13 for Fig.11 A cross-sectional view of the seal in an unfolded and compressed state;

[0049] In the figure: A, sealing member; 1, cup body; 2, cup cover; 21, perforation; 3, cover part; 30, valve part; 31, flange; 32, folding mark; 34, upper mounting part; 341, stopper; 342, inclined plane; 35, lower mounting part; 36, air inlet; 37, valve plate; 38, annular body; 381, upper ring body; 382, ​​middle ring body; 383, lower ring body; 384, water outlet; 39, valve column; 4, upper suction pipe; 41, limiting part; 42, tube body; 43, insertion part; 44, convex rib; 5, lower suction pipe; 6, cover body; 61, through hole; 62, insertion pipe; 63, tube body; 64, sealing ring; 7, connecting piece; 71, air inlet. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below with reference to the accompanying drawings.

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

[0052] The seal is an integral part formed of flexible elastic material, and can be made of non-toxic materials such as silicone, rubber, etc. Figures 4 to 6 As shown, the seal A includes a body, which includes a cover portion 3 , a mounting portion and a valve portion 30 .

[0053] The cover 3 is used to cover the container mouth. The container mouth of the present embodiment refers to the cup mouth of the cup body 1. The cup mouth of the cup body 1 is located at the top of the cup body 1. The cover 3 is a sheet-like body with a flat upper surface. A circle of flanges 31 that expand obliquely downward and outward are formed at the edge of the cover 3, so that the seal A installed on the cup mouth of the cup body 1 can be tightly abutted against the inner wall of the cup mouth through the flange 31 to achieve sealing of the cup mouth, and when the cup body 1 is tilted, the seal A will not be recessed into the inside of the cup body 1, causing water leakage at the edge of the cup body 1.

[0054] In addition to the above-mentioned method of sealing the cup mouth of the cup body 1 by means of the flange 31, other methods of sealing can also be used, such as sealing the cup mouth with the cover 3 by means of a sealing ring. The flange 31 of this embodiment is provided so that there is no need to provide a separate sealing ring to seal the cup mouth, and the structure is simple and involves fewer parts.

[0055] The mounting portion is formed by folding and compressing the raised portion located in the center of the cover 3. The raised portion is a hollow shell wall structure with a closed top, and is a multi-stage annular body 38 with a gradually decreasing 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 that are connected in sequence and gradually decrease in diameter, and the top of the middle annular body 382 is provided with a water outlet 384 along its circumference, and the top of the upper annular body 381 is closed. It can be seen that the annular body 38 of this embodiment has three levels, of course, it is not limited to three levels, but it must meet the requirement of having at least one level.

[0056] A water outlet 384 is provided on the step of the annular body 38 . In this embodiment, the water outlet 384 is provided at the top of the middle annular body 382 .

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

[0058] The cover part 3, the lower ring body 383, the middle ring body 382, ​​the upper ring body 381 and the valve part 30 are connected in sequence, and deformable folding marks 32 are provided between the adjacent parts, and the folding marks 32 are annular ribs with thin shell walls. The valve part 30 and the raised part can be folded and compressed into the opening 33 in the center of the cover part 3 in sequence by using the deformable folding marks 32. After the annular body 38 is folded and compressed, the top of the lower ring body 383 is located downward below the cover part 3, and the top of the middle ring body 382 is located 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 an upper mounting part 34. The inner cavity of the middle ring body 382 forms the lower mounting portion 35, and the upper ring body 381 and the valve portion 30 are located in the middle ring body 382. At this time, the seal A is in the original compression state and the valve plate 37 extends from the upper ring body 381 and is located above the water outlet 384. The valve plate 37 covers the water outlet 384 to achieve sealing. The upper ring body 381 can produce an upward deformation under the action of air pressure. When there is no air pressure, the upper ring body 381 rebounds downward by its own elastic force and restores the original compression state. In this process, the valve plate 37 can move synchronously with the upper ring body 381 to open and close the water outlet 384. In addition, in the original state, the valve plate 37 controls the effect of sealing the water outlet 384 by the length difference between the valve column 39 and the upper ring body 381. At the same time, the hardness of the valve plate 37 itself can also control the effect of the valve plate 37 sealing the water outlet 384.

[0059] In this embodiment, the height of the upper ring body 381 is smaller than that of the middle ring body 382 and the lower ring body 383, so that the upper ring body 381 can be deformed upward or downward under the action of air pressure, driving the valve plate 37 and the valve column 39 to move synchronously to open or close the water outlet 384. Figure 3The valve plate 37 is in a state of closing the water outlet 384. Fig. 9 The valve plate 37 is in the state of opening the water outlet 384 .

[0060] The suction pipe includes an upper suction pipe 4 and a lower suction pipe 5, both of which are vertically penetrating tubes. After the upper suction pipe 4 is inserted into the upper mounting portion 34 and 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 connected by the water outlet hole 384, so that 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 plate 37.

[0061] from Figure 3 It can be seen that the lower mounting portion 35 is located on the inner side of the upper mounting portion 34, and the water outlet 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 tube 4 and the lower suction tube 5 correspond to each other in the vertical direction, and the water flow path is short, which is convenient for the user to suck the water in the cup body 1 into the mouth.

[0062] A limiting portion 41 is provided on the outer peripheral wall of the upper suction pipe 4, and a stopper 341 is provided on the side wall of the upper mounting portion 34. When the upper suction pipe 4 is inserted into the upper mounting portion 34, the stopper 341 presses 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 bottom wall edge of the upper mounting portion 34 is an inclined surface 342 that is inclined outward from top to bottom, so as to guide and squeeze the insertion of the upper suction pipe 4.

[0063] The lower suction pipe 5 and the lower plug-in portion 35 are tightly fitted, so that the lower suction pipe 5 and the sealing member A are tightly fitted.

[0064] In this embodiment, the upper suction tube 4 includes a tube body 42 and an insertion portion 43 formed at the bottom of the tube body 42. The above-mentioned limiting portion 41 is arranged on the insertion portion 43. The insertion portion 43 is inserted in the upper mounting portion 34. The diameter of the insertion portion 43 is larger than the diameter of the tube body 42, and the tube body 42 is a cone with a gradually decreasing diameter from bottom to top. In this way, during the flow of water, the flow area is reduced and the flow rate is increased, which is convenient for users to absorb water.

[0065] In order to prevent the valve plate 37 from moving upward and completely blocking the tube body 42, thereby affecting the flow of water in the upper suction pipe 4, at least two convex ribs 44 are provided at the connection between the tube body 42 and the insertion portion 43. The valve plate 37 can move upward until it abuts against the convex ribs 44, and a water groove is formed between two adjacent convex ribs 44. When the valve plate 37 abuts against the convex ribs 44, the valve plate 37 opens the water outlet 384, and after the water flows out of the water outlet 384, it flows upward from the water groove to the tube body 42.

[0066] The cover 3 is provided with a vertically penetrating air inlet 36 beside the annular body 38, that is, the air inlet 36 is located beside the upper mounting portion 34 and the lower mounting portion 35. In this embodiment, the air inlet 36 is cross-shaped, and the air inlet 36 can be in a closed state to achieve sealing. Specifically, the air inlet 36 is in a closed state when it is not subjected to external force, and is in an open state when it is subjected to hydraulic or air pressure impact. The structure of the air inlet 36 is the prior art.

[0067] The bottom of the cup cover 2 is open, and a through hole 21 is provided on the top wall of the cup cover 2 for the tube body 42 of the upper straw 4 to pass through, and there is a gap between the outer peripheral wall of the upper straw 4 and the side wall of the through hole 21, and the peripheral wall of the cup cover 2 is sleeved on the outside of the cup body 1 and the two are detachably connected. In this embodiment, the cup cover 2 is threadedly connected to the cup body 1, which is convenient for disassembly and assembly. The two can also be assembled in other ways, such as the cup cover 2 is buckled on the cup body 1.

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

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

[0070] (1) Press the valve portion 30 and the raised portion. The valve portion 30 and the raised portion can be folded and compressed into the opening 33 in the center of the cover portion 3 in sequence by using the deformable folding marks 32. After folding and compression, an upper mounting portion 34 for inserting the upper suction pipe 4 and a lower mounting portion 35 for inserting the lower suction pipe 5 are formed. At this time, the valve plate 37 covers the water outlet 384.

[0071] The specific pressing steps are: Figure 4 The seal A shown in the unfolded pressed state first presses the valve plate 37, so that the upper ring body 381 is concave downward as a whole, and drives the valve column 39 to enter the middle ring body 382, ​​and the valve plate 37 closes the water outlet 384 on the middle ring body 382, ​​as shown in FIG. Figure 5 Then continue to press the middle ring body 382 downward until the top of the lower ring body 383 is located below the cover 3, and the top of the middle ring body 382 is located upward in the lower ring body 383, forming an upper mounting portion 34 and a lower mounting portion 35. At this time, the seal A is as Figure 6 As shown, it is in a state where it can be assembled with the upper suction pipe 4 and the lower suction pipe 5;

[0072] (2) The upper suction pipe 4 is inserted into the upper mounting portion 34, and the lower suction pipe 5 is inserted into the lower mounting portion 35. At this time, the upper suction pipe 4 and the lower suction pipe 5 are connected 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 plate 37;

[0073] (3) The cover 3 is then pressed against the top wall of the cup body 1, and the lower straw 5 is extended 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. Figure 1 , 3 Status shown.

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

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

[0077] When the user drinks water with a straw, air enters from the gap between the upper straw 4 and the perforation 21, causing the air inlet 36 to open, thereby keeping the air pressure inside and outside the cup body 1 consistent, allowing the user to drink water with a straw. The suction force of the user on the upper straw 4 causes the air pressure inside the upper straw 4 to change, and the upper ring body 381 begins to deform upward under the influence of pressure through its own elasticity, driving the valve plate 37 to move upward to open the water outlet 384. At this time, the upper straw 4, the lower straw 5, and the water outlet 384 are connected, and the valve plate 37 and the convex rib 44 of the upper straw 4 are against each other to form a water flow channel.

[0078] The user continues to use the straw to drink water, and the water flows out from the water outlet 384, enters the upper straw 4 through the water flow channel, and finally enters the user's mouth. When the user finishes drinking water, the air pressure in the upper straw 4 returns to normal, and the upper ring body 381 returns to its original compressed state, driving the valve plate 37 to move downward together, so that the valve plate 37 closes the water outlet 384, and the straw cup returns to a sealed state.

[0079] In summary, in this embodiment, a foldable and deformable flexible member is assembled with the upper straw 4 and the lower straw 5 to form a one-way valve, and can cover the mouth of the cup body 1 with good sealing performance; in other words, in this embodiment, only one sealing member A is used to achieve double sealing of the water cup and the straw, and the structure is simple and compact with multiple functions.

[0080] Example 2

[0081] like Figures 10 to 13 As shown, compared with Example 1, this embodiment does not have a cup cover 2 but a cover body 6 . The body of this embodiment includes an air inlet, a mounting portion and a valve portion 30 , but does not have a cover portion 3 .

[0082] In this embodiment, the cover body 6 is covered on the cup mouth of the cup body 1, the air inlet part 7 is integrally connected with the mounting part, the air inlet part 7 is provided with an air inlet 71 that can be opened and closed, and the cover body 6 is provided with a through hole 61 corresponding to the air inlet 71. The function of the hole formed by the air inlet 71 and the through hole 61 is the same as that of the air inlet hole 36 in Example 1.

[0083] The annular body 38 of this embodiment has the same structure as the annular body 38 of the first embodiment, and the mounting portion is also formed with an upper mounting portion 34 and a lower mounting portion 35. The cover body 6 is provided with an insertion tube 62 that can be inserted into the upper mounting portion 34. The upper suction pipe 4 is provided on the cover body 6 and communicates with the insertion tube 62. The lower suction pipe 5 is installed on the lower mounting portion 35. The lower suction pipe 5, the insertion tube 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. In this embodiment, the upper suction pipe 4 and the cover body 6 are integrally formed, and of course, the two can also be designed separately.

[0084] A vertically extending annular tube 63 is provided on the lower surface of the cover body 6, and the annular tube 63 is inserted into the cup mouth of the cup body 1 and the two are threadedly connected to position the cover body 6 and improve the firmness of the fit between the cover body 6 and the cup body 1. A sealing ring 64 is also provided between the cover body 6 and the top wall of the cup body 1 to prevent water leakage.

[0085] In summary, in Example 1, 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 this embodiment, the upper mounting portion 34 is used to insert the insertion pipe 62 of the cover body 6, and the lower mounting portion 35 is used to insert the lower suction pipe 5. It can be seen that the function of the lower mounting portion 35 of this embodiment is the same as that of Example 1. The upper mounting portion 34 is not directly provided for the upper suction pipe 4 to be inserted thereon, but is connected to the upper suction pipe 4 through the cover body 6. In other words, in Example 1, the upper suction pipe 4 is directly connected to the upper mounting portion 34, and in Example 2, the upper suction pipe 4 is indirectly connected to the upper mounting portion 34 through the insertion pipe 62.

[0086] The working process of the straw cup of this embodiment is as follows:

[0087] When the user drinks water with a straw, air enters from the through hole 61, causing the air inlet 71 to open, thereby keeping the air pressure inside and outside the cup body 1 consistent, allowing the user to drink water with a straw. The user's suction force on the upper straw 4 causes the air pressure inside the upper straw 4 to change, and the upper ring body 381 begins to deform upward under the influence of pressure through its own elasticity, driving the valve plate 37 to move upward to open the water outlet 384. At this time, the upper straw 4, the lower straw 5, and the water outlet 384 are connected to form a water flow channel.

[0088] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A one-way valve seal, characterized in that: The seal is an integral piece formed of a flexible elastic material, and includes a body having: 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, and is in the form of an annular body (38) with at least one level of diameter gradually decreasing from bottom to top, and a water outlet hole (384) is provided on the step of the annular 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 annular body (38) and having a valve plate (37) with an enlarged outer diameter; The valve portion (30) and the raised portion are folded and compressed downward in sequence using the deformable folding marks (32) to form a mounting portion for mounting a straw, so that the straw is connected to the water outlet hole (384) and a one-way liquid outlet channel is formed, and the opening and closing of the channel is controlled by the valve plate (37).

2. The one-way valve seal according to claim 1, characterized in that: The installation part comprises an upper installation part (34) for connecting to an upper suction pipe (4) and a lower installation part (35) for connecting to a lower suction pipe (5), so that the upper suction pipe (4) and the lower suction pipe (5) are connected via the water outlet hole (384).

3. The one-way valve seal according to claim 2, characterized in that: The annular body (38) comprises a lower annular body (383), a middle annular body (382) and an upper annular body (381) which are connected in sequence and gradually reduce in diameter, and the top of the middle annular body (382) is provided with the water outlet hole (384) along its circumference, and the top of the upper annular body (381) is in a closed shape; After the annular body (38) is folded and compressed, the top of the lower ring body (383) faces downward, the top of the middle ring body (382) faces upward and is located 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 plate (37) extends from the upper ring body (381) and is located above the water outlet (384), the upper ring body (381) can produce upward or downward deformation, and the valve plate (37) can move synchronously with the upper ring body (381) to open and close the water outlet (384).

4. The one-way valve seal according to claim 3, characterized in that: The lower ring body (383), the middle ring body (382), the upper ring body (381) and the valve portion (30) are connected in sequence, and deformable folding marks (32) are provided between adjacent ones. The folding marks (32) are annular ribs with thinner shell walls.

5. The one-way valve seal according to claim 3, characterized in that: The valve portion (30) has a T-shaped longitudinal section and comprises the valve plate (37) and a valve column (39) connected between the valve plate (37) and the upper ring body (381).

6. The one-way valve seal according to any one of claims 2 to 5, characterized in that: The main body also includes a cover portion (3) for covering the container mouth, the cover portion (3) having an opening (33), the raised portion being located at the opening (33) of the cover portion (3), and being located within the opening (33) of the cover portion (3) after being folded and compressed; the cover portion (3) is provided with an openable and closable air inlet hole (36) located beside the annular body (38), the air inlet hole (36) passing through the inner cavity of the container; the upper mounting portion (34) is used for mounting an upper suction pipe (4), and the lower mounting portion (35) is used for mounting a lower suction pipe (5).

7. The one-way valve seal according to any one of claims 2 to 5, characterized in that: The main body also includes an air intake member (7) connected to the mounting portion, and the air intake member (7) is provided with an air intake port (71) that can be opened and closed; the upper mounting portion (34) is used to mount a component provided with an upper suction pipe (4), and the lower mounting portion (35) is used to mount a lower suction pipe (5).

8. A straw cup, characterized in that: It comprises a cup body (1), an upper straw (4), a lower straw (5) and the one-way valve type seal (A) as claimed in claim 6, wherein the mouth of the cup body (1) is located at the top of the cup body (1), and the cover (3) can detachably cover the mouth of the cup body (1); The upper suction pipe (4) and the lower suction pipe (5) are both vertically penetrating tubes. The upper suction pipe (4) is inserted on the upper mounting portion (34), and the lower suction pipe (5) is inserted on the lower mounting portion (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 is controlled by the valve plate (37).

9. The one-way valve seal according to claim 8, characterized in that: The straw cup further comprises a cup cover (2), the peripheral wall of the cup cover (2) being sleeved on the outside of the cup body (1) and the two being detachably connected, a through hole (21) for the upper straw (4) to pass through being provided on the top wall of the cup cover (2), and a gap being provided between the peripheral wall of the upper straw (4) and the side wall of the through hole (21), and the edge of the cover portion (3) being squeezed between the cup cover (2) and the cup body (1).

10. The straw cup according to claim 8, characterized in that: The cover part (3) of the sealing member (A) is in the form of a sheet with a flat upper surface.

11. The straw cup according to claim 8, characterized in that: The upper suction pipe (4) comprises a tube body (42) and an inserting portion (43) formed at the bottom of the tube body (42); the inserting portion (43) is inserted into the upper mounting portion (34); the diameter of the inserting portion (43) is larger than the diameter of the tube body (42); at least two convex ribs (44) are provided at the connection between the tube body (42) and the inserting portion (43); the valve plate (37) can move upward to abut against the convex ribs (44); a water channel is formed between two adjacent convex ribs (44); when the valve plate (37) abuts against the convex ribs (44), the valve plate (37) opens the water outlet (384).

12. The straw cup according to claim 8, characterized in that: A limiting portion (41) is provided on the outer peripheral wall of the upper suction pipe (4), and a blocking portion (341) is provided on the side wall of the upper mounting portion (34). When the upper suction pipe (4) is inserted into the upper mounting portion (34), the blocking portion (341) presses against the top wall of the limiting portion (41); The lower suction pipe (5) is tightly fitted with the lower mounting portion (35).

13. The straw cup according to claim 8, characterized in that: The edge of the cover portion (3) of the sealing member (A) is also formed with a flange (31) that expands obliquely downward and outward, so that the sealing member (A) mounted on the mouth of the cup body (1) can be tightly abutted against the inner wall of the mouth of the cup through the flange (31) to achieve sealing of the mouth of the cup.

14. A straw cup, characterized in that: It comprises a cup body (1), an upper suction pipe (4), a lower suction pipe (5), a cover body (6), and the one-way valve type sealing member (A) as claimed in claim 7, wherein the cup mouth of the cup body (1) is located at the top of the cup body (1), the cover body (6) is arranged on the cup mouth of the cup body (1), and the cover body (6) is provided with a through hole (61) corresponding to the air inlet (71); The cover body (6) is provided with a plug (62) which can be inserted into the upper mounting portion (34); the upper suction pipe (4) is provided on the cover body (6) and is connected to the plug (62); the lower suction pipe (5) is installed on the lower mounting portion (35); the lower suction pipe (5), the plug (62), 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 plate (37).

15. The straw cup according to claim 14, characterized in that: The upper suction tube (4) and the cover body (6) are integrally formed.

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