CN217937825U

CN217937825U - Blowout prevention cup cover and water cup

Info

Publication number: CN217937825U
Application number: CN202222009431.7U
Authority: CN
Inventors: 周韩
Original assignee: Youzhi Technology Shenzhen Co ltd
Current assignee: Youzhi Technology Shenzhen Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-12-02
Anticipated expiration: 2032-07-29

Abstract

The utility model belongs to the technical field of the drinking cup, especially, relate to a prevent spouting bowl cover and drinking cup. The blowout prevention cup cover comprises a turnover cover, a blowout prevention assembly and a cover body provided with a first mounting hole, wherein the turnover cover is rotatably mounted on the cover body; the blowout prevention assembly comprises a check valve assembly, a first elastic piece, a sealing plug with an inner hole and an exhaust plug with a through hole, wherein the sealing plug and the exhaust plug are both arranged in the first mounting hole, and one end of the exhaust plug penetrates through the inner hole and is connected with an inlet of the check valve assembly; the first elastic piece is arranged between the sealing plug and the exhaust plug and is used for driving the exhaust plug to move to conduct the inner hole when the flip cover is in an exhaust state; the first elastic piece is also used for driving the vent plug to move when the flip cover is in an opening state until the one-way valve component is abutted against one end, far away from the first elastic piece, of the sealing plug so as to seal the inner hole. The utility model discloses a prevent spouting the bowl cover and have fine prevent spouting the performance and improve its security.

Description

Blowout prevention cup cover and water cup

Technical Field

The utility model belongs to the technical field of the drinking cup, especially, relate to a prevent spouting bowl cover and drinking cup.

Background

The cup is an indispensable daily necessity in people's daily life, has many different styles of cups in the existing market, and along with the continuous improvement of people's living standard, the consumer has a great concern about the security of cup, especially straw type cup. In order to avoid the situation that high-temperature and high-pressure water vapor in the cup body is sprayed out from the suction pipe when the cup cover is opened, a blowout preventer is usually required to be arranged on the cup cover, and the blowout preventer can perform pressure relief treatment on a water cup when a consumer opens the matched cover, so that the safety of people when the cup cover is opened is guaranteed.

In the prior art, usually, the mounting hole of the pressure release valve is arranged on the cup cover, although the pressure release valve can play a role in releasing pressure and exhausting air, when people drink water in the cup, the water in the cup can leak from a gap between the pressure release valve and the mounting hole, and therefore scalding accidents can occur.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: aiming at the problem that people in the prior art can be scalded when drinking water in a cup, a blowout prevention cup cover and a water cup are provided.

In order to solve the technical problem, on one hand, an embodiment of the present invention provides a blowout prevention cup cover, which includes a flip, a blowout prevention assembly, and a cover body provided with a first mounting hole, wherein the flip is rotatably mounted on the cover body; the blowout preventing assembly comprises a one-way valve assembly, a first elastic piece, a sealing plug with an inner hole and an exhaust plug with a through hole, wherein the sealing plug and the exhaust plug are both arranged in a first mounting hole, and one end of the exhaust plug penetrates through the inner hole and is connected with an inlet of the one-way valve assembly;

the first elastic piece is arranged between the sealing plug and the vent plug and is used for driving the vent plug to move to conduct the inner hole when the flip cover is in a venting state; the first elastic piece is further used for driving the vent plug to move when the flip cover is in an open state until the one-way valve assembly is abutted against one end, far away from the first elastic piece, of the sealing plug to seal the inner hole.

Optionally, an annular sealing portion is disposed on the vent plug, and the annular sealing portion is used for abutting against one end of the sealing plug facing the first elastic member to seal the inner hole when the flip cover is in the closed state.

Optionally, an annular groove is formed in the vent plug, and the first elastic member is sleeved on the vent plug and located in the annular groove.

Optionally, the vent plug comprises a mounting portion and an insertion portion connected with the mounting portion, the mounting portion and the insertion portion are both provided with the through hole, the mounting portion is mounted in the first mounting hole, and one end, far away from the mounting portion, of the insertion portion penetrates through the inner hole and is connected with the check valve assembly;

the external diameter of installation department is greater than the internal diameter of hole, the external diameter of grafting portion is less than the internal diameter of hole.

Optionally, the one-way valve assembly is mounted on the vent plug by a threaded arrangement.

Optionally, still be equipped with butt portion on the flip, butt portion is used for driving the exhaust stopper remove in the hole.

Optionally, a second mounting hole is further formed in the cover body, the blowout prevention cup cover further comprises a suction pipe provided with a bent section, and the suction pipe is inserted into the second mounting hole; the abutting portion drives the vent plug to move through the bending section.

Optionally, the check valve assembly comprises a check valve and a valve seat provided with a communication hole, one end of the vent plug penetrates through the inner hole and is connected with the valve seat, the check valve is mounted on the valve seat, one end of the communication hole is communicated with the through hole, and the other end of the communication hole is communicated with an inlet of the check valve; when the flip cover is in an open state, the valve seat is abutted against the sealing plug to seal the inner hole.

Optionally, the blowout prevention cup cover further comprises a lock catch assembly, the lock catch assembly comprises a lock catch, a rotating shaft and a second elastic piece, pressing portions, connecting portions, first hooks and second hooks are arranged on the lock catch at intervals, the connecting portions are located between the connecting portions and the first hooks or the second hooks, and the connecting portions are rotatably mounted on the cover body through the rotating shaft; the second elastic piece is arranged on the cover body and is opposite to the pressing part;

the flip cover is provided with a third clamping hook matched with the first clamping hook and a fourth clamping hook matched with the second clamping hook; when the first hook is clamped with the third hook, the flip cover is in a covering state; when the second clamping hook is clamped with the fourth clamping hook, the flip cover is in an exhaust state.

The utility model discloses in, the user is opening during flip, at first will flip is in open certain aperture on the lid, at this moment, the exhaust plug is in the effect of the elastic force of first elastic component is upwards removed down, thereby the inside wall of hole with certain clearance has (also, the hole is in the state that switches on) between the lateral wall of exhaust plug, high-pressure steam in the cup will be through this clearance discharge to external environment, and then has played the carminative technological effect of water cup pressure release. The flip cover continues to rotate until the flip cover is completely opened, the exhaust plug continues to move upwards under the action of the elastic force of the first elastic piece until the check valve assembly connected below the exhaust plug abuts against the sealing plug (namely the lower edge of the inner hole), at the moment, the check valve assembly can seal the inner hole, so that water in the cup body cannot be discharged through a gap between the exhaust plug and the sealing plug (namely the inner hole) when a user drinks water, the scalding accident of the user in drinking water is avoided, and the safety of the user in drinking water is further ensured. In addition, the blowout prevention cup cover is simple in structure and low in manufacturing cost.

On the other hand, the utility model also provides a drinking cup, including cup and foretell prevent spouting the bowl cover, the lid closes on the cup.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a blowout-preventing cup cover according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the blowout prevention cup cover in a closed position according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the blowout prevention cup cover in an exhaust state according to an embodiment of the present invention;

fig. 4 is a sectional view of the blowout prevention cup lid according to an embodiment of the present invention in an open state;

FIG. 5 is a schematic view of a portion of a structure of a blowout prevention cup cover according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a blowout prevention assembly and a suction pipe of the blowout prevention cup cover according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a blowout prevention assembly of a blowout prevention cup cover according to an embodiment of the present invention.

The reference numerals in the specification are as follows:

1. a cover is turned; 11. an abutting portion; 12. a third hook; 13. a fourth hook; 2. a cover body; 3. a blowout prevention assembly; 31. a one-way valve assembly; 311. a one-way valve; 312. a valve seat; 3121. a communicating hole; 32. a first elastic member; 33. a sealing plug; 331. an inner bore; 34. a vent plug; 341. a through hole; 342. an annular seal portion; 343. an installation part; 344. a plug-in part; 345. an annular groove; 4. a straw; 41. bending sections; 5. a latch assembly; 51. locking; 511. a pressing part; 512. a connecting portion; 513. a first hook; 514. a second hook; 52. a second elastic member.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "middle", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides a blowout prevention cup cover, which includes a flip 1, a blowout prevention assembly 3, and a cover body 2 having a first mounting hole, wherein the flip 1 is rotatably mounted on the cover body 2; the blowout preventer assembly 3 comprises a check valve assembly 31, a first elastic member 32, a sealing plug 33 provided with an inner hole 331 and a vent plug 34 provided with a through hole 341, wherein the sealing plug 33 and the vent plug 34 are both installed in a first installation hole, and one end of the vent plug 34 penetrates through the inner hole 331 and is connected with an inlet of the check valve assembly 31; it is understood that the first elastic member 32 includes, but not limited to, a coil spring, etc., and the inlet of the check valve assembly 31 is communicated with the through hole 341 of the vent plug 34, so that the external gas can enter into the cup body through the through hole 341 and the check valve assembly 31, while the moisture, etc. in the cup body cannot flow to the external environment through the check valve assembly 31 and the through hole 341. Specifically, the sealing plug 33 is mounted at the lower portion of the first mounting hole, and the vent plug 34 is movable up and down along the inner hole 331 of the sealing plug 33.

The first elastic element 32 is disposed between the sealing plug 33 and the vent plug 34, and the first elastic element 32 is used for driving the vent plug 34 to move to conduct the inner hole 331 when the flip cover 1 is in a venting state; the first elastic member 32 is further configured to move the vent plug 34 when the flip cover 1 is in the open state until the check valve assembly 31 abuts against an end of the sealing plug 33 away from the first elastic member 32 to seal the inner hole 331. It will be appreciated that the maximum travel of the vent plug 34 along the bore 331 of the sealing plug 33 is: when the check valve assembly 31 abuts against the lower end of the seal plug 33 and the check valve assembly 31 abuts against the lower end of the seal plug 33, the inner hole 331 is sealed by the check valve assembly.

The utility model discloses in, as shown in fig. 3, the user is opening during flip 1, at first will flip 1 is in open certain aperture on the lid 2, at this moment, the core vent 34 is in upward movement under the effect of the elastic force of first elastic component 32, thereby the inside wall of hole 331 with certain clearance (also, hole 331 is in the state that switches on) has between the lateral wall of core vent 34, and high-pressure steam in the cup will be through this clearance exhaust to external environment, and then has played the carminative technological effect of water feeding cup pressure release. As shown in fig. 4, the flip cap 1 continues to rotate until the flip cap is completely opened, the vent plug 34 continues to move upwards under the elastic force of the first elastic member 32 until the check valve assembly 31 connected below the vent plug 34 abuts against the sealing plug 33 (i.e. the lower edge of the inner hole 331), and at this time, the check valve assembly 31 can seal the inner hole 331, so that when a user drinks water, water in the cup body is not discharged through a gap between the vent plug 34 and the sealing plug 33 (i.e. the inner hole 331), thereby avoiding an accident that the user is scalded when drinking water, and further ensuring the safety of the user when drinking water. In addition, the blowout prevention cup cover is simple in structure and low in manufacturing cost.

In an embodiment, as shown in fig. 2, 6 and 7, an annular sealing portion 342 is disposed on the vent plug 34, and the annular sealing portion 342 is configured to abut against an end of the sealing plug 33 facing the first elastic element 32 to seal the inner hole 331 when the flip cover 1 is in the closed state. As can be understood, the outer diameter of the annular sealing portion 342 is larger than the inner diameter of the inner hole 331, so that when the flip cap 1 is closed on the cover body 2, the annular sealing portion 342 abuts against the upper end of the sealing plug 33 (i.e., the upper edge of the inner hole 331), and the annular sealing portion 342 can play a role in sealing the inner hole 331, so that when the flip cap 1 is in a closed state, moisture in the cup is prevented from being discharged through the inner hole 331, and the sealing performance of the cup in the closed state is ensured.

In an embodiment, as shown in fig. 6 and 7, an annular groove 345 is formed on the vent plug, and the first elastic element 32 is sleeved on the vent plug 34 and is located in the annular groove 345. It will be appreciated that the annular recess 345 is located above the sealing plug 33 with the opening of the annular recess 345 facing downwards, and the two ends of the upper end of the first resilient member 32 abut against the top inner wall of the annular recess 345 and the upper end of the sealing plug 33, respectively. In this embodiment, the first elastic element 32 is installed in the annular groove 345, so that interference of the external environment on the first elastic element 32 is avoided, sanitation of the blowout-preventing cup cover is ensured, and compactness of the blowout-preventing cup cover is improved.

In one embodiment, as shown in fig. 6 and 7, the vent plug 34 includes a mounting portion 343 and a plug portion 344 connected to the mounting portion 343, the mounting portion 343 and the plug portion 344 are both provided with the through hole 341, the mounting portion 343 is mounted in the first mounting hole, and an end of the plug portion 344 away from the mounting portion 343 penetrates through the inner hole 331 and is connected to the check valve assembly 31; it can be understood that the mounting portion 343 and the insertion-connection portion 344 are integrally formed, the mounting portion 343 is located at an upper portion of the first mounting hole, and the mounting portion 343 is slidable in the first mounting hole.

The outer diameter of the mounting portion 343 is larger than the inner diameter of the inner hole 331, and the outer diameter of the insertion portion 344 is smaller than the inner diameter of the inner hole 331. It will be appreciated that the annular sealing portion 342 is disposed at a lower end of the mounting portion 343 (i.e., at a junction of the mounting portion 343 and the mating portion 344), and the annular groove 345 is disposed on the mounting portion 343; the insertion part 344 can slide along the inner hole 331 of the sealing plug 33, and the moving stroke of the insertion part 344 is: the length between the annular seal portion 342 and the one-way valve assembly 31. In this embodiment, the vent plug 34 has a simple structure and low manufacturing cost.

In one embodiment, as shown in FIG. 7, the one-way valve assembly 31 is mounted to the vent plug 34 by a threaded arrangement. It will be appreciated that the lower end of the insertion part 344 is provided with an external thread, the internal thread hole of the check valve assembly 31, and the check valve assembly 31 is installed at the lower end of the vent plug 34 by the external thread and the internal thread hole which are screwed together.

Specifically, the disassembling steps of the blowout preventer assembly 3 are as follows: the check valve assembly 31 is first removed from the lower end of the vent plug 34, then the vent plug 34 is removed from above the cover 2, and finally the first elastic member 32 and the sealing plug 33 are removed. The installation steps of the blowout prevention assembly 3 are as follows: the sealing plug 33 is first installed in the first installation hole and the first elastic member 32 is installed in the annular groove 345, then the vent plug 34 is installed in the upper portion of the first installation hole such that the lower end of the vent plug 34 passes through the inner hole 331 of the sealing plug 33, and finally the check valve assembly 31 is installed in the lower end of the vent plug 34. The utility model discloses in, prevent that the dismouting of spouting subassembly 3 is simple, thereby it is right to be convenient for prevent the cleaning of each spare part in the subassembly 3, and be convenient for right the cleaning of first mounting hole, and then guaranteed the cleanliness factor and the health nature of this prevent spouting bowl cover.

In an embodiment, as shown in fig. 2 to 4, the flip cover 1 is further provided with an abutting portion 11, and the abutting portion 11 is used for driving the vent plug 34 to move along the inner hole 331. It can be understood that, when the flip cover 1 is in the closed state, the abutting portion 11 abuts against the upper end of the vent plug 34, and presses the vent plug 34 in the first mounting hole; that is, the abutting portion 11 brings the vent plug 34 to move downward and compresses the first elastic member 32. In this embodiment, the design of the abutting portion 11 enables the flip cover 1 to automatically press the vent plug 34, so that the convenience of the blowout-preventing cup cover is improved.

In an embodiment, as shown in fig. 2 to 5, a second mounting hole is further formed in the lid body 2, the blowout prevention lid further includes a suction pipe 4 having a bent section 41, and the suction pipe 4 is inserted into the second mounting hole; the abutting part 11 drives the vent plug 34 to move through the bending section 41. Understandably, the bending segment 41 is positioned above the vent plug 34; when the flip cover 1 is covered on the cover body 2, the abutting portion 11 presses the vent plug 34 through the bending section 41, that is, the bending section 41 is pressed against the abutting portion 11 and the vent plug 34, at this time, the bending section 41 is in a closed state, and water vapor in the cup cannot leak out through the straw 4, so that the sealing performance of the cup is ensured. When the flip cover 1 contacts the lock catch, the resilience of the bending section 41 drives the flip cover 1 to rotate, so that the flip cover 1 is in an exhaust state and an open state in sequence. In the embodiment, the design of the suction pipe 4 further improves the convenience of the water blowout prevention cup.

In one embodiment, as shown in fig. 6 and 7, the check valve assembly 31 includes a check valve 311 and a valve seat 312 provided with a communication hole 3121, one end of the vent plug 34 passes through the inner hole 331 and is connected to the valve seat 312, the check valve 311 is mounted on the valve seat 312, one end of the communication hole 3121 communicates with the through hole 341, and the other end of the communication hole 3121 communicates with an inlet of the check valve 311; when the flip-top lid 1 is in the open state, the valve seat 312 abuts against the sealing plug 33 to seal the inner bore 331. It is understood that the valve seat 312 is connected with the vent plug 34 by screw threads, and the check valve 311 is sleeved on the lower end of the valve seat 312; the check valve 311 and the suction tube 4 are both made of silica gel, and the valve seat 312 and the cover 2 are both made of plastic. Preferably, the check valve 311 and the straw 4 are integrally formed.

In an embodiment, as shown in fig. 1, the blowout-preventing cup cover further includes a locking assembly 5, and the locking assembly 5 is installed on the cover body 2 and is used for connecting the flip cover 1. It is understood that the latch assembly 5 can make the flip cover 1 in a closed state, an exhaust state and an open state; and the latch assembly 5 may be various latch members known to those skilled in the art, and the style thereof is not limited herein.

In an embodiment, as shown in fig. 1 to 5, the latch assembly 5 includes a latch 51, a rotating shaft and a second elastic member 52, the latch 51 is provided with a pressing portion 511, a connecting portion 512, a first hook 513 and a second hook 514, the connecting portion 512 is located between the connecting portion 512 and the first hook 513 or the second hook 514, and the connecting portion 512 is rotatably mounted on the cover 2 through the rotating shaft; the second elastic member 52 is mounted on the cover 2 and is disposed opposite to the pressing portion 511; it is understood that the connecting portion 512 is located between the pressing portion 511 and the first hook 513 and between the pressing portion 511 and the second hook 514, and the second hook 514 is located at one end of the first hook 513 facing the abutting portion 11. Specifically, a first rotating hole is formed in the connecting portion 512, a second rotating hole is formed in the cover body 2, and the connecting portion 512 is connected to the cover body 2 through the rotating shaft inserted into the first rotating hole and the second rotating hole; and the cover body 2 is provided with a receiving groove, the opening of the receiving groove faces the abutting part 11, the abutting part 11 is provided with a compression column, the second elastic part 52 is installed in the receiving groove, and the compression column is inserted into the central hole of the second elastic part 52.

A third hook 12 adapted to the first hook 513 and a fourth hook 13 adapted to the second hook 514 are arranged on the flip cover 1; when the first hook 513 is connected with the third hook 12 in a clamping manner, the flip cover 1 is in a covering state; when the second hook 514 is connected to the fourth hook 13, the flip-open cover 1 is in an exhaust state. Specifically, a connecting arm is arranged on the flip cover 1, and the third hook 12 and the fourth hook 13 are respectively arranged on two opposite sides of the connecting arm.

Specifically, when the user presses the flip cover 1 until the first hook 513 is engaged with the third hook 12, as shown in fig. 2, the flip cover 1 is in a closed state (that is, the flip cover 1 is closed on the cover 2), at this time, the bending section 41 is compressed between the abutting portion 11 and the vent plug 34 (the bending section 41 is in a closed state, so that moisture in the cup is not discharged through the straw 4), and the annular sealing portion 342 of the vent plug 34 abuts against the upper edge of the through hole 341 (the through hole 341 is in a sealed state); in addition, the bending section 41 is pressed above the through hole 341 by the abutting section 11, so that the bending section 41 can play a role of sealing the through hole 341, and the moisture in the cup is prevented from being discharged through the through hole 341 when the check valve assembly 31 leaks; further avoiding the accident that the water vapor overflowing from the through hole 341 wets the backpack when the user places the water cup in the backpack. As shown in fig. 3, when a user presses the pressing portion 511, the latch 51 rotates around the rotating shaft, so that the first hook 513 is disengaged from the third hook 12, the flip cover 1 rotates under the elastic force of the bending section 41 until the second hook 514 is engaged with the fourth hook 13, at this time, the flip cover 1 is in an exhaust state, the vent plug 34 moves up under the elastic force of the first elastic member 32, the annular sealing portion 342 does not abut against the upper edge of the through hole 341, the check valve assembly 31 does not abut against the lower edge of the through hole 341, and high-pressure gas in the cup can be discharged from a gap between the sealing plug 33 and the vent plug; and the bending section 41 is also in a closed state, so that water vapor in the cup cannot be discharged through the suction pipe 4. As shown in fig. 4, the flip cover 1 is continuously driven to rotate under the action of the elastic force of the bending segment 41, the second hook 514 is disengaged from the fourth hook 13, and the vent plug 34 continuously moves upward under the action of the first elastic member 32 until the check valve assembly 31 abuts against the lower edge of the through hole 341 (the through hole 341 is in a sealed state); and the suction pipe 4 is in a conducting state, external air can enter the cup body through the through hole 341 and the check valve assembly 31, and then a user can suck drinking water in the cup through the suction pipe 4. When the user releases the pressing force on the pressing portion 511, the second elastic member 52 returns the latch 51.

The utility model discloses in, this prevent spouting convenient to use of bowl cover has improved its user experience and has felt.

The utility model discloses another embodiment has still improved a drinking cup, including cup (not shown in the figure) and foretell prevent spouting the bowl cover, 2 lids of lid close on the cup. It will be appreciated that the lid 2 may be screwed onto the cup.

The above are only examples of the anti-blowout cup cover and cup of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A blowout prevention cup cover is characterized by comprising a flip, a blowout prevention assembly and a cover body provided with a first mounting hole, wherein the flip is rotatably mounted on the cover body; the blowout preventing assembly comprises a one-way valve assembly, a first elastic piece, a sealing plug with an inner hole and an exhaust plug with a through hole, wherein the sealing plug and the exhaust plug are both arranged in a first mounting hole, and one end of the exhaust plug penetrates through the inner hole and is connected with an inlet of the one-way valve assembly;

the first elastic piece is arranged between the sealing plug and the vent plug and is used for driving the vent plug to move to conduct the inner hole when the flip cover is in a venting state; the first elastic piece is further used for driving the exhaust plug to move when the flip cover is in an open state until the one-way valve assembly is abutted to one end, far away from the first elastic piece, of the sealing plug so as to seal the inner hole.

2. The blowout prevention cup cover according to claim 1, wherein the vent plug is provided with an annular sealing portion, and the annular sealing portion is used for abutting against one end of the sealing plug, which faces the first elastic piece, when the flip cover is in a closed state so as to seal the inner hole.

3. The blowout prevention cup cover according to claim 1, wherein an annular groove is formed in the vent plug, and the first elastic member is sleeved on the vent plug and located in the annular groove.

4. The blowout prevention cup cover according to claim 1, wherein the vent plug comprises a mounting portion and an insertion portion connected with the mounting portion, the mounting portion and the insertion portion are provided with the through holes, the mounting portion is mounted in the first mounting hole, and one end, far away from the mounting portion, of the insertion portion penetrates through the inner hole and is connected with the check valve assembly;

the outer diameter of the mounting part is larger than the inner diameter of the inner hole, and the outer diameter of the inserting part is smaller than the inner diameter of the inner hole.

5. The blowout prevention cup cover of claim 1 wherein the check valve assembly is mounted on the vent plug by a threaded arrangement.

6. The blowout prevention cup cover according to claim 1, wherein the flip cover is further provided with an abutting portion for driving the exhaust plug to move along the inner hole.

7. The blowout prevention cup cover according to claim 6, further comprising a second mounting hole provided on the cover body, wherein the blowout prevention cup cover further comprises a suction pipe provided with a bent section, and the suction pipe is inserted into the second mounting hole; the abutting portion drives the vent plug to move through the bending section.

8. The blowout prevention cup cover according to claim 1, wherein the check valve assembly comprises a check valve and a valve seat provided with a communication hole, one end of the venting plug penetrates through the inner hole and is connected with the valve seat, the check valve is installed on the valve seat, one end of the communication hole is communicated with the through hole, and the other end of the communication hole is communicated with an inlet of the check valve; when the flip cover is in an open state, the valve seat is abutted against the sealing plug to seal the inner hole.

9. The blowout prevention cup cover according to claim 8, further comprising a latch assembly, wherein the latch assembly comprises a latch, a rotating shaft and a second elastic member, the latch is provided with a pressing portion, a connecting portion, a first hook and a second hook, the connecting portion is located between the connecting portion and the first hook or the second hook, and the connecting portion is rotatably mounted on the cover body through the rotating shaft; the second elastic piece is arranged on the cover body and is opposite to the pressing part;

10. A water cup, comprising a cup body and the blowout prevention cup cover of any one of claims 1 to 9, wherein the cover body covers the cup body.