CN210249429U

CN210249429U - Water spray prevention cup cover capable of prolonging cover opening time

Info

Publication number: CN210249429U
Application number: CN201921262142.XU
Authority: CN
Inventors: 李军; 罗应来
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-04-07
Anticipated expiration: 2029-08-06

Abstract

The utility model provides an extension time of uncapping prevents water spray bowl cover, including spiral cover and upper cover, the front end upper surface of spiral cover upwards arches slotted top cap, the outside protrusion of spiral cover front end lateral part has slotted bottom, slot top cap and tank bottom lid combination have formed the button holding tank of placing the button, first inlet port A and first inlet port B have been seted up in proper order along the button direction of pressing down at slot top cap top, first inlet port A is equipped with the tip and inclines the first position of detaining downwards, the upper cover corresponds the department with first inlet port A and is equipped with the snap ring, the upper cover corresponds the department with first inlet port B and is equipped with the second and detains the position, the second is detained the position and is included cylinder and hook portion, the one end and the upper cover body coupling of cylinder, the other end and the hook portion of cylinder are connected. The utility model discloses rational in infrastructure, adopt two successively openly increasing of detaining the position steam from leading breather valve exhaust time before the suction nozzle is bounced, make steam can not follow the suction nozzle blowout.

Description

Water spray prevention cup cover capable of prolonging cover opening time

Technical Field

The utility model relates to a bowl cover technical field specifically is a prevent water spray bowl cover of extension time of uncapping.

Background

A drinking cup with a suction nozzle or a duckbill and the like as a sucker is mainly characterized in that the sucker is connected with liquid in the drinking cup through a suction pipe. The cup with the structure generally adopts a triangular or cylindrical ventilation valve for ventilation, and the triangular or cylindrical ventilation valve is opened only when the air pressure of the external environment is greater than the air pressure in the cup when the water in the cup is sucked; when the air pressure in the cup is larger than the air pressure of the external environment, the ventilation valve can not be opened. If the through hole is used for ventilation, when the cup cover is closed, the through hole is blocked in order to meet the requirement of no water leakage, and when the cup cover is opened, the balance of internal and external air pressure can be realized within a certain time.

When the cup is filled with hot water and the water is still in a warm state, the cup cover is opened, and the water in the cup can be sprayed out from the suction nozzle along the suction pipe because the temperature in the cup is higher than the external environment temperature and the air pressure in the cup is higher than the external environment air pressure. The sprayed water may splash and scald the user. The use of triangular or cylindrical vent valves for venting, or through holes for venting, does not prevent this.

The suction nozzle is also sealed at the front part in the market, and then a structure that water flows through a cut is used for trying to solve the problem that hot water or hot air splashes from the suction nozzle when the cup cover is opened, but the structure has great negative performance, and if the water can be effectively prevented from being sprayed, the sucking is very difficult; if the sucking is smooth, the water spray prevention effect is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an extension time of uncapping prevents water spray bowl cover, the successively open that adopts button and leading breather valve to combine and two to detain the position has increased steam from leading breather valve exhaust time before the suction nozzle is bounced to solve steam from suction nozzle spun problem.

The above technical purpose of the present invention can be achieved by the following technical solutions: a water-spraying-proof cup cover capable of prolonging the opening time comprises a spiral cover and an upper cover, wherein the inner thread of the spiral cover is screwed on a cup body, the upper cover is rotatably connected to the rear end of the spiral cover, a slotted top cover is upwards arched on the upper surface of the front end of the spiral cover, a slotted bottom cover outwards protrudes from the side part of the front end of the spiral cover, the slotted top cover and the bottom cover are combined to form a key accommodating groove, a key is arranged in the key accommodating groove, the upper cover can be buckled with or separated from the spiral cover through the key, a suction nozzle mounting hole is formed in the spiral cover, a suction nozzle is inserted into the suction nozzle mounting hole, a first inlet A and a first inlet B are sequentially formed in the top part of the groove top cover along the key pressing direction, a first buckling position with the end inclined downwards is arranged on one side, close to the first inlet B, of the first inlet A, a clamping ring is arranged at the position, corresponding to the first inlet A, the second buckling position comprises a cylinder and a hook portion, one end of the cylinder is integrally connected with the upper cover, the other end of the cylinder is connected with the hook portion, the opening of the hook portion faces the direction of the key, the clamping ring can penetrate through the first inlet A, the second buckling position can penetrate through the first inlet B, a front vent valve mounting hole is formed in the upper surface of the rotary cover in the key accommodating groove, a front vent valve is inserted into the front vent valve mounting hole, and the key can extrude the front vent valve to exhaust air.

Preferably, the key comprises a pressing part and an arch part integrally formed on the upper edge of the pressing part, a second inlet is formed in the center of the arch part, a first buckling position with an end part inclined downwards is arranged on one side, away from the pressing part, of the second inlet, the second inlet can vertically correspond to the first inlet A, and the clamping ring can sequentially penetrate through the first inlet A and the second inlet to be buckled with the first buckling position;

rectangular limiting holes for limiting the press stroke of the key are formed in the positions, located on the two sides of the second inlet, of the arched portion, the side edge of the arched portion is inwards recessed towards the first buckling position to form a clamping position, the clamping position is inwards pressed along with the pressing portion and can abut against a cylinder of the second buckling position, and the hook portion abuts against the lower surface of the arched portion at the clamping position;

the center of the pressing part is provided with a top rod which is integrally formed with the pressing part, and the top rod can extrude the preposed vent valve when the key is pressed into the key accommodating groove so as to exhaust the preposed vent valve.

Preferably, shaft holes are formed in two side walls of the groove top cover, a key limiting shaft penetrates through the shaft holes, and two ends of the key limiting shaft penetrate through the rectangular limiting holes and the shaft holes successively.

As preferred, press the splenium and be equipped with a set of mount pad of mutual symmetry respectively with two faces that the groove top cap is relative, and every group mount pad includes two cross posts, two cross posts also mutual symmetry set up, are connected with two springs between two sets of mount pads, every the both ends of spring overlap respectively and locate on the cross post that corresponds.

Preferably, the rotary cover is provided with a suction nozzle vent valve hole beside the suction nozzle mounting hole, a suction nozzle vent valve is mounted at the suction nozzle vent valve hole, the suction nozzle vent valve is positioned below the rotary cover, the suction nozzle vent valve and the suction nozzle are integrally formed, and a straight cut is cut at the top of the suction nozzle vent valve or a straight cut is vertically cut at the side edge of the suction nozzle vent valve.

Preferably, the front vent valve comprises an oval base, an annular clamping groove is formed in the middle of the oval base in a concave mode, the annular clamping groove is in interference fit with the mounting hole of the front vent valve, the middle of the oval base is upwards communicated with a hollow valve body, and the top of the hollow valve body and the suction nozzle vent valve are consistent in straight-line cutting or are vertically cut on the side edge.

Preferably, the matching position of the suction nozzle and the suction nozzle mounting hole is provided with a limiting table for clamping the suction nozzle, and the limiting table is in interference fit with the suction nozzle mounting hole.

Preferably, a suction pipe is sleeved at the lower end of the suction nozzle.

Preferably, an upper cover pressing sheet is arranged below the upper cover, and the suction nozzle can be pressed between the upper cover pressing sheet and the upper surface of the screw cover by the upper cover pressing sheet when the upper cover is buckled.

To sum up, compare with prior art, the beneficial effects of the utility model reside in that:

1. the water cup cover utilizes the pressing part to enable the top rod to extrude the preposed vent valve when being pressed, so that a straight cut of the preposed vent valve is opened, water vapor in the cup is discharged from the preposed vent valve when the upper cover pressing sheet is gradually separated from the suction nozzle, the discharge efficiency is improved, the water cup cover is safer than the water vapor discharged from the suction nozzle, more importantly, the water cup cover is simultaneously provided with a second buckling position on the upper cover and a first buckling position on the key, when the key is pressed in, the first buckling position is separated from the clamping ring, the clamping ring of the upper cover is lifted, the second buckling position can move upwards, a hook part of the second buckling position is abutted against the lower surface of the arch part, the arch part returns to the original position when the key rebounds, the hook part of the second buckling position is not blocked by the arch part and can move upwards, at the moment, the whole cup cover can be opened, and more time is provided for the water vapor to be discharged from the preposed vent valve due to the opening of the second buckling, the phenomenon that water vapor is sprayed out from the suction nozzle is avoided.

2. The suction nozzle is additionally provided with the suction nozzle vent valve, the suction nozzle vent valve cannot leak water, the top of the suction nozzle vent valve is provided with a straight notch or the side wall of the suction nozzle vent valve is provided with a straight notch, the suction nozzle vent valve can only open and balance internal and external air pressure when a user sucks liquid in a bottle and negative pressure is formed in the bottle, and the straight notch cannot be opened when the air pressure in the bottle is greater than the air pressure of the external environment, so that the suction nozzle vent valve can help the sucker not to feel arduous when sucking water, and the design is more humanized;

3. the front-mounted vent valve, the suction nozzle and the suction nozzle vent valve are all silica gel products, and the purpose that the front-mounted vent valve, the suction nozzle and the suction nozzle vent valve can be assembled, disassembled and replaced can be achieved by utilizing the elasticity of silica gel and the interference fit of the corresponding mounting holes during installation.

Drawings

FIG. 1 is an exploded view of an embodiment;

FIG. 2 is a schematic structural view for showing the upper cover;

FIG. 3 is a schematic structural diagram of a key;

FIG. 4 is a cross-sectional view of an embodiment (suction nozzle and suction tube portion not shown);

FIG. 5 is a sectional view for showing a mouthpiece portion;

FIG. 6 is a schematic view showing the position of the pre-vent valve and the in-line cut

FIG. 7 is a diagram showing a state immediately before the front vent valve is opened (suction nozzle and the like are not shown);

FIG. 8 is a view showing a state where the snap ring is about to be disengaged (suction nozzle and the like are not shown);

FIG. 9 is a view showing a state where the button is pressed to the bottom (suction nozzle and the like are not shown);

fig. 10 shows the situation in which the second fastening member is about to be disengaged by the spring-back of the push button (the suction nozzle and the like are not shown).

Reference numerals: 1. screwing a cover; 2. an upper cover; 21. a snap ring; 22. pressing the upper cover; 3. a key accommodating groove; 31. a tank top cover; 311. a shaft hole; 312. a first inlet opening A; 313. a first inlet port B; 32. a tank bottom cover; 4. pressing a key; 41. a pressing part; 42. an arch portion; 421. a second access port; 422. a rectangular limiting hole; 43. a first buckling position; 44. a top stick; 45. clamping; 5. a suction nozzle mounting hole; 6. a suction nozzle; 61. a limiting table; 7. a mounting hole of a preposed vent valve; 8. a front ventilation valve; 81. an elliptical base; 811. an annular neck; 82. a hollow valve body; 9. a key limit shaft; 10. a cross-shaped column; 11. a spring; 12. a suction nozzle vent valve hole; 13. a suction nozzle vent valve; 14. a straight notch; 15. a straw; 16. a second buckling position; 161. a cylinder; 162. a hook part.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the water spray prevention cup cover capable of prolonging the opening time comprises a screw cap 1 and an upper cover 2, wherein the screw cap 1 is screwed on a cup body through internal threads, the upper cover 2 is rotatably connected to the rear end of the screw cap 1, a suction nozzle mounting hole 5 is formed in the screw cap 1, a suction nozzle 6 is inserted into the suction nozzle mounting hole 5, and a suction pipe 15 is sleeved at the lower end of the suction nozzle 6; the upper surface of the front end of the spiral cover 1 upwards arches the groove top cover 31, the top of the groove top cover 31 is provided with a first inlet 312 for the snap ring 21 to enter, the side part of the front end of the spiral cover 1 outwards protrudes the groove bottom cover 32, the groove top cover 31 and the groove bottom cover 32 are combined to form a key accommodating groove 3, a key 4 is arranged in the key accommodating groove 3, and the key 4 can lock or rotate the upper cover 2 from the spiral cover 1.

As shown in fig. 2 and 4, a first inlet a312 and a first inlet B313 are sequentially formed in the top of the slot top cover 31 along the pressing direction of the key 4, a first buckling position 43 with an inclined downward end is arranged on one side of the first inlet a312 close to the first inlet B313, a snap ring 21 is arranged at a position of the upper cover 2 corresponding to the first inlet a312, a second buckling position 16 is arranged at a position of the upper cover 2 corresponding to the first inlet B313, the second buckling position 16 includes a cylinder 161 and a hook 162, one end of the cylinder 161 is integrally connected with the upper cover 2, the other end of the cylinder 161 is connected with the hook 162, an opening of the hook 162 faces the key 4, the snap ring 21 can pass through the first inlet a312, and the second buckling position 16 can pass through the first inlet B313.

As shown in fig. 3, the key 4 includes a pressing portion 41 and an arch portion 42 integrally formed on an upper edge of the pressing portion 41, a second inlet opening 421 is formed in a center of the arch portion 42, a first buckling position 43 with an end portion inclined downward is formed on a side of the second inlet opening 421 away from the pressing portion 41, a snap ring 21 is disposed at a position of the upper cover 2 opposite to the second inlet opening 421, and the snap ring 21 can sequentially enter the first inlet opening 312, and the second inlet opening 421 is buckled with the first buckling position 43.

Rectangular limiting holes 422 used for limiting the pressing stroke of the key 4 are formed in the two sides of the second inlet 421 of the arch part 42; the center of the pressing portion 41 is provided with a top stick 44 integrally formed with the pressing portion 41, the side edge of the arched portion 42 is inwardly recessed toward the first buckling position 43 to form a blocking portion 45, the blocking portion 45 is pressed inward along with the pressing portion 41 and can abut against the column 161 of the second buckling position 16, and the hook portion 152 abuts against the lower surface of the arched portion 42 at the blocking portion 45.

As shown in fig. 1, two side walls of the slot top cover 31 are provided with shaft holes 311, a key limiting shaft 9 penetrates through the shaft holes 311, and two ends of the key limiting shaft 9 sequentially penetrate through the rectangular limiting holes 422 and the shaft holes 311.

As shown in fig. 1 and 3, in order to enable the key 4 to automatically return when pressed, two opposite surfaces of the pressing portion 41 and the slot top cover 31 are respectively provided with a set of mounting seats which are symmetrical to each other, each set of mounting seat comprises two cross-shaped columns 10, the two cross-shaped columns 10 are also symmetrically arranged to each other, two springs 11 are connected between the two sets of mounting seats, and two ends of each spring 11 are respectively sleeved on the corresponding cross-shaped columns 10.

As shown in fig. 4, a front vent valve mounting hole 7 is formed on the upper surface of the screw cap 1 in the key accommodation groove 3, a front vent valve 8 is inserted into the front vent valve mounting hole 7, and the key 4 can press the front vent valve 8 to exhaust air.

As shown in fig. 6, the front vent valve 8 includes an oval base 81, in order to improve the effective installation, a circular groove 811 is formed by recessing a circle of side wall of the oval base 81 toward the middle thereof, the circular groove 811 is in interference fit with the front vent valve installation hole 7, a hollow valve body 82 is upwardly communicated with the middle of the oval base 81, and the top of the hollow valve body 82 is consistent with the suction nozzle vent valve 13 and is cut into a straight notch 14 or the side of the hollow valve body is vertically cut into a straight notch 14, so that the top stick 44 crushes the front vent valve 8.

In the embodiment, as shown in fig. 5, the screw cap 1 is provided with a nozzle vent valve hole 12 beside the nozzle mounting hole 5, a nozzle vent valve 13 is mounted at the nozzle vent valve hole 12, the nozzle vent valve 13 is located below the screw cap 1, and the shapes of the suction nozzle vent valve 13 and the suction nozzle vent valve hole 12 are mutually matched, the suction nozzle vent valve 13 and the suction nozzle 6 are integrally formed, and the top of the suction nozzle is cut with a straight cut 14 or the side edge is vertically cut with a straight cut 14, the suction nozzle vent valve 13 can not leak water, the top of the bottle is cut with a straight cut 14 or the side wall is cut with a straight cut 14, the suction nozzle vent valve 13 can be opened to balance the internal and external air pressure only when the user sucks the liquid in the bottle and negative pressure is formed in the bottle, when the air pressure in the bottle is larger than the air pressure in the external environment, the straight notch 14 cannot be opened, so that the sucking person can take water without effort, and the design is more humanized.

The suction nozzle ventilation valve 13 can be replaced by a ventilation through hole, and only a plug is arranged in the upper cover 2, so that the ventilation through hole is plugged when the upper cover 2 is covered, and water leakage is avoided when the suction nozzle ventilation valve is carried.

For the convenience of installation, the matching position of the suction nozzle 6 and the suction nozzle mounting hole 5 is provided with a limiting table 61 for clamping the suction nozzle 6, and the limiting table 61 is in interference fit with the suction nozzle mounting hole 5.

In this embodiment, an upper cover pressing sheet 22 is disposed below the upper cover 2, and when the upper cover 2 is fastened, the upper cover pressing sheet 22 can press the suction nozzle 6 between the upper cover pressing sheet 22 and the upper surface of the screw cover 1, so as to prevent the suction nozzle 6 from leaking out of the water.

The preposed vent valve 8, the suction nozzle vent valve 13 and the suction nozzle 6 in the embodiment are all rubber products, and are installed by interference fit by means of the elasticity of silica gel; the higher the hardness of the silica gel material used by the preposed ventilation valve 8 is, the thinner the wall thickness of the top and the side wall can be, and the thinnest wall thickness is more than or equal to 0.30mm generally.

The front vent valve 8 on the screw cap 1 is installed in an oval shape, and the position where the front vent valve 8 is matched with the front vent valve installation hole 7, namely the annular clamping groove 811 is also in an oval shape, so that the front vent valve 8 is installed with certain directivity, and the movement direction of the top stick 44 is just opposite to the straight notch 14 of the front vent valve 8.

The specific working principle (shown in combination with fig. 7-10): when warm water or hot water is filled in the cup, the air pressure in the cup is higher than the air pressure of the external environment due to the heating of the air in the cup, and the cup cover is opened at the moment. The pressing portion 41 is pressed inward, the key stopper shaft 9 moves from one end of the rectangular stopper hole 422 to the other end in the rectangular stopper hole 422, and the spring 11 is gradually compressed.

When the key 4 is pressed to the bottom by hand, the top stick 44 on the pressing part 41 crushes the front vent valve 8, that is, the front vent valve 8 opens for ventilation, and the internal and external air pressures are balanced; meanwhile, the first buckling position 43 is pressed inward along with the button 4, so that the snap ring 21 on the upper cover 2 is separated from the first buckling position 43, and the rotational connection between the upper cover 2 and the screw cover 1 has a certain resilience, such as a torsion spring connection, and the like, so that the snap ring 21 is lifted upward without being bound by the first buckling position 43, and the second buckling position 16 is also moved upward along with the snap ring 21, and more importantly, the height of the snap ring 21 is lower than that of the second buckling position 16, so that when the snap ring 21 is located at the communication position of the first inlet a and the second inlet 421 after being separated from the first buckling position 43, the cylinder 161 of the second buckling position 16 is abutted against the detent 45, and the hook 162 of the second buckling position 16 is abutted against the lower surface of the arch portion 42, so that the second buckling position 16 is completely lifted and separated from the first inlet B313.

The hand does not press the button 4, the button 4 rebounds to the original position under the restoring force of the spring 11, in the process, the arch part 42 restores, the hook part 162 of the second buckling position 16 is not blocked by the lower surface of the arch part 42, the whole second buckling position 16 penetrates through the first inlet opening B313 upwards, the upper cover 2 is opened, and the suction nozzle 6 bounces.

In the two processes, the second buckling position 16 is arranged, so that a clamping stagnation state is generated in the opening process, the time for opening the upper cover 2 is increased, namely the time for opening the front ventilation valve 8 for ventilation is increased before the suction nozzle 6 bounces, the balance of the internal air pressure and the external air pressure is more favorable, and the hot air is effectively prevented from being sprayed out of the suction nozzle 6.

Above is only the preferred embodiment of the present invention, and the protection scope is not limited to this embodiment, and all the technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an extension time of uncapping prevents water spray cup lid, includes that the internal thread screws in spiral cover (1) of body of cup and rotates upper cover (2) of connecting in spiral cover (1) rear end, the front end upper surface of spiral cover (1) upwards arches slotted top cap (31), the lateral part outside protrusion slotted bottom (32) of spiral cover (1) front end, slot top cap (31) and slot bottom (32) combination form button holding tank (3), be equipped with button (4) in the button holding tank (3), button (4) can with upper cover (2) lock or turn from spiral cover (1), suction nozzle mounting hole (5) have been seted up in spiral cover (1), suction nozzle (6) have been inserted in suction nozzle mounting hole (5), its characterized in that, first inlet A (312) and first inlet B (313) have been seted up in proper order along button (4) direction of pressing in groove top cap (31) top, a first buckling position (43) with an end inclined downwards is arranged on one side, close to a first inlet B (313), in the first inlet A (312), a clamping ring (21) is arranged at a position, corresponding to the first inlet A (312), of the upper cover (2), a second buckling position (16) is arranged at a position, corresponding to the first inlet B (313), of the upper cover (2), the second buckling position (16) comprises a cylinder (161) and a hook portion (162), one end of the cylinder (161) is integrally connected with the upper cover (2), the other end of the cylinder (161) is connected with the hook portion (162), an opening of the hook portion (162) faces the direction of the key (4), the clamping ring (21) can penetrate through the first inlet A (312), the second buckling position (16) can penetrate through the first inlet B (313), a front vent valve mounting hole (7) is formed in the upper surface of the rotary cover (1) in the key accommodating groove (3), the front vent valve (8) is inserted into the front vent valve mounting hole (7), and the key (4) can extrude the front vent valve (8) to exhaust.

2. The anti-water-spraying cup lid capable of prolonging the opening time of the lid as claimed in claim 1, wherein the button (4) comprises a pressing portion (41) and an arch portion (42) integrally formed on the upper edge of the pressing portion (41), a second inlet (421) is formed in the center of the arch portion (42), a first buckling position (43) with an inclined and downward end portion is arranged on one side, away from the pressing portion (41), of the second inlet (421), the second inlet (421) can vertically correspond to the first inlet A (312), and the clamping ring (21) can sequentially penetrate through the first inlet A (312) and the second inlet (421) to be buckled with the first buckling position (43);

rectangular limiting holes (422) used for limiting the pressing stroke of the key (4) are formed in the positions, located on the two sides of the second inlet opening (421), of the arched portion (42), the side edge of the arched portion (42) is inwards recessed towards the first buckling position (43) to form a clamping position (45), the clamping position (45) is pressed inwards along with the pressing portion (41) and can abut against a column body (161) of the second buckling position (16), and the hook portion (162) abuts against the lower surface of the arched portion (42) of the clamping position (45);

the center of the pressing part (41) is provided with a top stick (44) which is integrally formed with the pressing part (41), and the top stick (44) can extrude the preposed vent valve (8) when the key (4) is pressed into the key accommodating groove (3) so as to exhaust the preposed vent valve (8).

3. The water spraying prevention cup cover capable of prolonging the uncovering time according to claim 2, wherein shaft holes (311) are formed in two side walls of the groove top cover (31), a key limiting shaft (9) penetrates through the shaft holes (311), and two ends of the key limiting shaft (9) penetrate through the rectangular limiting hole (422) and the shaft holes (311) successively.

4. The lid of the water-spraying prevention cup for prolonging the uncovering time of the cup as claimed in claim 3, wherein two surfaces of the pressing portion (41) opposite to the groove top cover (31) are respectively provided with a set of mounting seats which are symmetrical to each other, each set of mounting seat comprises two cross-shaped columns (10), the two cross-shaped columns (10) are also symmetrical to each other, two springs (11) are connected between the two sets of mounting seats, and two ends of each spring (11) are respectively sleeved on the corresponding cross-shaped column (10).

5. The water-spraying-proof cup cover capable of prolonging the uncovering time is characterized in that a suction nozzle vent valve hole (12) is formed in the rotary cover (1) beside a suction nozzle mounting hole (5), a suction nozzle vent valve (13) is mounted at the suction nozzle vent valve hole (12), the suction nozzle vent valve (13) is located below the rotary cover (1), the suction nozzle vent valve (13) and a suction nozzle (6) are integrally formed, and a straight notch (14) is cut in the top of the suction nozzle vent valve (13) or a straight notch (14) is vertically cut in the side edge of the suction nozzle vent valve (12).

6. The water-spraying-proof cup lid capable of prolonging the uncovering time is characterized in that the front vent valve (8) comprises an oval base (81), a circle of side wall of the oval base (81) is recessed towards the middle of the oval base to form an annular clamping groove (811), the annular clamping groove (811) is in interference fit with the front vent valve mounting hole (7), the middle of the oval base (81) is upwards communicated with a hollow valve body (82), the top of the hollow valve body (82) and the suction nozzle vent valve (13) are in consistent straight-line cutting with one notch (14) or the side edge of the hollow valve body (82) is in vertical straight-line cutting with one notch (14).

7. The water spraying prevention cup cover capable of prolonging the uncovering time according to claim 1, wherein a limiting table (61) for clamping the suction nozzle (6) is arranged at the matching position of the suction nozzle (6) and the suction nozzle mounting hole (5), and the limiting table (61) is in interference fit with the suction nozzle mounting hole (5).

8. The water spray proof cup cover capable of prolonging the uncovering time as claimed in claim 1, characterized in that a suction pipe (15) is sleeved at the lower end of the suction nozzle (6).

9. The water spray prevention cup cover capable of prolonging the uncovering time according to the claim 1, characterized in that an upper cover pressing sheet (22) is arranged below the upper cover (2), and the upper cover pressing sheet (22) can press the suction nozzle (6) between the upper cover pressing sheet (22) and the upper surface of the screw cover (1) when the upper cover (2) is buckled.