CN114098394B - A tea bin, a lid and a water cup - Google Patents

Abstract

The invention belongs to the field of drinking water cups, and specifically relates to a tea bin, which includes a bin body and a bin cover. The bin body includes a filter element and a filter cover. Including the second end surface and the second cylindrical surface, the warehouse cover includes a pressure plate and a sealing sleeve, and the pressure plate squeezes the sealing sleeve under the action of the end cover to make the sealing sleeve and the first flange of the filter cover of the warehouse airtightly fit, and the sealing sleeve and the filter cover The matching part of the first end face of the cover is elastically deformed, and the sealing sleeve is elastically reset after the end cover is separated from the pressure plate, so that the sealing sleeve is separated from the first flange, and the first through hole seals the cavity of the filter element through the gap between the first flange and the sealing sleeve. The body communicates with the outside world, and the present invention realizes the functions of soaking and tea separation in the tea chamber through the staged airtight cooperation of the chamber cover and the chamber body, and the joint action of balancing the air pressure and the surface tension of the liquid. The invention also discloses a lid comprising the tea compartment and a water cup comprising the lid.

Description

A tea bin, a lid and a water cup

technical field

The invention belongs to the field of water cups for drinking utensils, and in particular relates to a tea compartment for separating cups from tea and water.

Background technique

In the field of drinking utensils, especially cups for making tea, such as commercial thermos cups, the cup usually has a cup body, a filter cartridge contained inside the cup body, and a cup cover. Tea leaves are separated from tea water. When making tea, the tea leaves are placed in the filter cartridge, and the boiling water is poured into the filter cartridge until it fills the entire cup body. After the tea leaves are soaked for an appropriate time, the filter cartridge is lifted out of the cup body through the handle of the filter cartridge. The tea leaves flow into the cup body through the mesh holes arranged at the bottom and surrounding of the filter cartridge, and the tea leaves remain inside the filter cartridge. Since the filter cartridge and the cup cover are separated, after the filter cartridge is lifted out of the cup, it is necessary to lift the filter cartridge in the air or place the filter cartridge in a specific place, such as a coaster or a tea tray, which will inevitably cause cross contamination, or cause The remaining tea in the filter cartridge drips onto the ground or the table. In order to avoid such problems, some cup manufacturers have introduced a one-piece cup cover that installs the filter cartridge at the bottom of the cup cover. The two are connected by threads to facilitate installation. When making tea, first unscrew the filter cartridge from the bottom of the cup cover, put an appropriate amount of tea into the filter cartridge, then tighten the filter cartridge to the bottom of the cup cover, pour an appropriate amount of boiling water into the cup body, and tighten the cup cover on the cup body Finally, turn the cup upside down so that the lid of the cup faces down and the bottom of the cup faces up. The boiling water in the cup enters the inside of the filter cartridge through the mesh holes around and at the bottom of the filter cartridge, and then soaks the tea leaves. , put the cup lid upside down on the table or on the hand, so that the filter cartridge faces up, and the residual tea in the filter cartridge drips into the cup cover along the wall of the filter cartridge. Although this design solves the problem of tea dripping on the ground or the table, However, the problem of the filter cartridge being exposed to the atmosphere is unacceptable to some tea drinkers.

Contents of the invention

One of the objectives of the present invention is to provide a tea compartment for separating tea and water to overcome the above problems, and to separate the tea and water through the joint action of balanced air pressure and liquid surface tension.

To this end, the present invention provides a tea bin, which includes a bin body and a bin cover, a second through hole is arranged at the bottom of the bin body, the bin cover and the bin body are airtightly matched in stages, and the bin body includes a filter element and a detachable airtight filter element with the filter element. The connected filter cover, the cavity formed by the filter element and the filter cover is used to accommodate tea leaves, and the filter cover includes a first end surface provided with a first through hole, a first cylindrical surface extending perpendicular to the first end surface, and a first cylindrical surface perpendicular to the first cylindrical surface. And the radially outward protruding first flange, the first cylindrical surface is located between the first flange and the first end surface, the filter element includes a second end surface provided with a second through hole and a second end surface perpendicular to the second end surface and facing the filter The second cylindrical surface extended by the cover, the second cylindrical surface isolates the air inside and outside the filter element. The cover includes a pressure plate and a sealing sleeve that is partially sealed and sleeved with the pressure plate. The pressure plate squeezes the sealing sleeve under the action of the end cover to make the sealing sleeve and the warehouse The first flange of the filter cover of the body is airtightly fitted and the matching part of the sealing sleeve and the first end face of the filter cover undergoes elastic deformation. The cavity of the filter element communicates with the outside through the gap between the first flange and the sealing sleeve.

The second object of the present invention is to provide a lid for separating tea and water to overcome the above-mentioned problems, and to separate tea and water through the joint action of balanced air pressure and liquid surface tension.

For this reason, the present invention provides a kind of cover, and it comprises the base that is threaded with the mouth of water cup, is used to hold the tea compartment of tealeaves and is used for opening or closing the end cap of water outlet, and tea compartment comprises bin body and bin body The bin cover is airtightly fitted in stages. The bin body includes a filter element and a filter cover detachably and airtightly connected with the filter element. The cavity formed by the filter element and the filter cover is used to accommodate tea leaves. The filter cover includes a first end surface provided with a first through hole , a first cylindrical surface extending perpendicular to the first end surface, and a first flange perpendicular to the first cylindrical surface and protruding radially outward, the first cylindrical surface is located between the first flange and the first end surface, and the filter element includes A second end surface with a second through hole and a second cylindrical surface perpendicular to the second end surface and extending toward the filter cover are provided. The second cylindrical surface isolates the air inside and outside the filter element. The sealing sleeve, the pressure plate squeezes the sealing sleeve under the action of the end cover, so that the sealing sleeve and the first flange of the filter cover of the bin body are airtightly matched, and the matching part of the sealing sleeve and the first end face of the filter cover undergoes elastic deformation, and the sealing sleeve is at the end. After the cover is detached from the pressure plate, it returns elastically to make the sealing sleeve separate from the first flange, and the first through hole communicates the cavity of the filter element with the outside through the gap between the first flange and the sealing sleeve.

The third object of the present invention is to provide a water cup for separating tea and water to overcome the above-mentioned problems, and to separate tea and water through the joint action of balanced air pressure and liquid surface tension.

For this reason, the present invention provides a water cup, which comprises a cup body, a cover threadedly fitted with the cup body, a sealing gasket located between the cover and the cup body, the cover comprises a base threadedly fitted with the mouth of the cup, and is used for accommodating tea leaves. The tea bin and the end cover for opening or closing the water outlet. The tea bin includes a bin body and a bin cover that is tightly matched with the bin body in stages. The bin body includes a filter element and a filter cover that is detachably and airtightly connected with the filter element. The cavity formed by the filter cover is used to accommodate the tea leaves. The filter cover includes a first end surface provided with a first through hole, a first cylindrical surface extending perpendicular to the first end surface, and a first cylindrical surface perpendicular to the first cylindrical surface and protruding radially outward. The first flange, the first cylindrical surface is located between the first flange and the first end surface, the filter element includes a second end surface provided with a second through hole and a second cylindrical surface perpendicular to the second end surface and extending toward the filter cover , the second cylindrical surface isolates the air inside and outside the filter element. The cover includes a pressure plate and a sealing sleeve that is partially hermetically connected to the pressure plate. The flange is airtightly fitted and the matching part of the sealing sleeve and the first end face of the filter cover is elastically deformed. After the end cover is detached from the pressure plate, the sealing sleeve is elastically reset so that the sealing sleeve is separated from the first flange. The first through hole passes through the first flange and the sealing The gap between the sleeves communicates the cavity of the filter element with the outside world.

Beneficial effect

1. Due to the staged airtight cooperation between the bin body and the bin cover, the surrounding wall of the tea bin has no openings, only the top and bottom holes. Therefore, when the bin body is closed by the bin lid, the top of the tea bin is in a closed state, and the tea bin is in a closed state. The bottom communicates with the outside through the second through hole. When the cover is separated from the bin body, the top of the tea bin is in a non-airtight state, the top of the tea bin communicates with the outside world, and the bottom of the tea bin communicates with the outside world through the second through hole. When the water cup is turned upside down, the lid of the cup faces down and the bottom of the cup faces up. The boiling water in the cup wraps the tea compartment, and the cup body forms an air layer and a boiling water layer from top to bottom. The boiling water layer wraps the tea compartment, and the tea compartment is located inside the boiling water layer. The air in the bin can only enter the boiling water through the second through hole, and finally merge with the air layer. After the air leaves the tea bin, the air pressure in the tea bin will decrease. After the air enters the air layer, the air pressure in the air layer will increase. The tea bin will The boiling water above enters the tea compartment through the second through hole under the joint action of the gravity and the air pressure of the air layer until the tea compartment is filled with boiling water. When the tea bin is filled with boiling water, place the water cup upright with the lid facing up and the bottom of the cup facing down. Since there is no air or only a small amount of air inside the tea bin filled with boiling water, the air pressure in the tea bin is much smaller than that of the cup body. The phenomenon of internal air pressure, and a standard atmospheric pressure can support a water column about 10 meters high. Therefore, if the surface tension of the water on the second through hole at the bottom of the tea warehouse is not destroyed, the boiling water in the tea warehouse will not It will flow out of the tea compartment through the second through hole, that is, the boiling water in the tea compartment is restricted inside the tea compartment by the air pressure outside the tea compartment. In order to keep the second through hole from destroying the surface tension of the water, the diameter of the second through hole is suitable for 8 Within millimeters, since the filter element is used as filtering tea and tea leaves in this application, the aperture of the second through hole is preferably within 1 millimeter, so the surface tension of the boiling water near the second through hole is not destroyed, and the boiling water in the tea compartment is kept in the tea leaves Store and steep the tea leaves. Since the cup body and the filter element are made of transparent glass, the tea bin with the filter hole at the bottom is not only leak-proof, but also can be suspended in the air to hold boiling water and soak tea. After the cover is opened, the tea in the transparent tea compartment is instantly discharged from the tea compartment through the through hole at the bottom and enters the inside of the cup until the tea in the tea compartment is completely discharged. Close the lid and put the water cup upside down again. The phenomenon that the transparent tea compartment hangs in the air to hold the tea reappears. After opening the lid, the tea is discharged again instantly. This phenomenon can be repeated many times to improve the interaction between people and the water cup. sex.

2. Since the end cover exerts pressure on the pressure plate, the pressure plate squeezes the sealing sleeve, and the fourth end surface of the sealing sleeve is tightly attached to the first flange of the filter cover, and at the same time, the fourth end surface of the sealing sleeve covers the sealing sleeve on the first flange. The third through hole, so the warehouse cover and the warehouse body form an effective airtight connection.

3. When the end cover squeezes the cover, the fifth end surface of the sealing sleeve of the cover abuts against the first end surface of the filter cover, and the fourth cylindrical surface of the sealing sleeve undergoes elastic deformation and stores elastic potential energy. After the end cover is withdrawn from the bin cover, the elastically deformed fourth cylindrical surface resets under the action of the elastic force and makes the fourth end surface of the sealing sleeve separate from the first flange of the filter cover, forming a gap between the first flange and the fourth end surface, Simultaneously, the fourth end surface no longer covers the third through hole on the first flange, and the air in the cup enters the gap formed by the first flange and the fourth end surface through the third through hole, thereby making the top and bottom of the warehouse body The air is connected, the air pressure between the top and the bottom of the warehouse is balanced, the surface tension of the water on the second through hole is not enough to offset the gravity of the tea, and the tea brewed in the warehouse passes through the first hole at the bottom of the warehouse under the action of gravity. The two through holes are discharged, and the brewed tea enters the cup body from the tea compartment.

4. Turn the cover over to open the water outlet, tilt the water cup, and the brewed tea in the cup will enter the cavity formed by the first flange of the filter cover and the seat through the third through hole, and then flow out through the water outlet.

Description of drawings

The invention and its advantages will be better understood in the following description of an embodiment given as a non-limiting example with reference to the accompanying drawings, which follow:

Fig. 1 is a three-dimensional cross-sectional view of a water cup disclosed according to an exemplary embodiment of the present application, wherein the lid is in a closed state;

Fig. 2 is a three-dimensional cross-sectional view of a water cup disclosed according to an exemplary embodiment of the present application, wherein the lid is in an open state;

Fig. 3 is a three-dimensional exploded view of the water cup in Fig. 1;

Fig. 4 is a three-dimensional exploded view of the cover in Fig. 3;

Fig. 5 is a perspective view of the tea bin in Fig. 4, wherein the bin cover is in an open state;

Fig. 6 is a perspective view of the cover in Fig. 5;

Fig. 7 is a perspective view of the tea bin in Fig. 4, wherein the bin cover is in a closed state

Fig. 8 is a three-dimensional exploded view of the cover in Fig. 6;

Fig. 9 is a perspective view of the bin body in Fig. 5;

Fig. 10 is a perspective view of the filter element in Fig. 9;

Fig. 11 is a three-dimensional exploded view of the bin body in Fig. 9;

Fig. 12 is a partial perspective cross-sectional view of the cooperation between the second coupling part of the cover and the first coupling part of the seat in Fig. 4, wherein the cover is in a locked state;

Fig. 13 is a three-dimensional exploded view of the end cap in Fig. 4;

Figure 14 is a perspective view of the base in Figure 4;

Fig. 15 is a perspective sectional view of the end cap in Fig. 4;

Fig. 16 is a partial cross-sectional view of the third boss of the cover in Fig. 3 when it cooperates with the slope of the seat;

Figure 17 is a perspective view of the seal in Figure 13;

Fig. 18 is a partial cross-sectional view when the third boss of the cover in Fig. 3 faces the first recess of the seat;

Fig. 19 is a partial cross-sectional view when the third boss of the cover in Fig. 3 is inserted into the first recess of the seat;

Figure 20 is a perspective view of the torsion spring in Figure 13;

Fig. 21 is a partial perspective cross-sectional view of the cooperation between the second coupling part of the cover and the first coupling part of the seat in Fig. 15, wherein the cover is in an unlocked state;

Fig. 22 is a partial perspective cross-sectional view of the cooperation between the second coupling part of the cover and the first coupling part of the seat in Fig. 15, wherein the cover is in an open state;

Fig. 23 is a perspective view of the filter cover in Fig. 9;

Fig. 24 is a perspective view of another viewing angle of the filter cover in Fig. 23;

Figure 25 is a perspective view of the cover in Figure 13;

Fig. 26 is a perspective view of another viewing angle of the cover in Fig. 25;

Fig. 27 is a perspective view of another viewing angle of the cover in Fig. 25;

Figure 28 is a perspective view of the seat in Figure 13;

Fig. 29 is a perspective view of another angle of view of the seat body in Fig. 28;

Figure 30 is a schematic diagram of putting an appropriate amount of boiling water into the cup body, wherein the lid has not been connected with the cup body, and the water cup is placed upright;

Figure 31 is a schematic diagram of connecting the lid and the cup body on the basis of Figure 30, where the water cup is upright;

Figure 32 is a schematic diagram of the water cup inverted on the basis of Figure 31;

Fig. 33 is a schematic diagram of an appropriate amount of boiling water entering the tea compartment on the basis of Fig. 32;

Figure 34 is a schematic diagram of placing the water cup upright on the basis of Figure 33;

Fig. 35 is a schematic diagram after opening the cover on the basis of Fig. 34;

Fig. 36 is a perspective cross-sectional view of a compartment cover and a filter cover disclosed in another embodiment, wherein the compartment cover seals the filter cover;

Fig. 37 is a perspective cross-sectional view of a compartment cover and a filter cover disclosed in another embodiment, wherein the compartment cover is detached from the filter cover;

FIG. 38 is an exploded perspective view of FIG. 36 .

Explanation of reference signs

1. Base; 2. First sealing ring; 3. Second sealing ring;

4. End cover; 5. Tea compartment; 6. Gasket;

7. Cup body; 8. Lid; 11. Second groove;

12. The first groove; 13. The second flange; 14. The fourth boss;

15. The fifth cylinder; 16. The third thread; 41. Torsion spring;

42. Shaft; 43. Plastic parts; 44. Cover plate;

45. Seal; 46. Second magnet; 47. Cover;

48. Seat body; 49. First magnet; 51. Canopy cover;

52. Cartridge body; 421. First end; 422. Second end;

423. Shaft; 451. First part; 452. Second part;

471. The eighth through hole; 472. The third boss; 473. The second connecting part;

474. The sixth through hole; 475. The second cavity; 476. The oblong hole;

477. The fourth groove; 478. The second blind hole; 479. The second pit;

470. The third pit; 4710. The second boss; 481. The third groove;

482. First locking portion; 483. First dimple; 484. Inclined surface;

485. The first coupling part; 486. The sixth groove; 487. The seventh through hole;

488. First cavity; 489. Third flange; 480. First blind hole;

4810. The fifth through hole; 4811. The sixth cylinder; 511. The pressure plate;

512. Seal sleeve; 521. Filter cover; 522. Filter element;

5211. The first end surface; 5212. The first through hole; 5213. The first cylindrical surface;

5214. First thread; 5215. First flange; 5216. Third through hole;

5217. The fifth groove; 5221. The second end surface; 5222. The second through hole;

5223. The second cylindrical surface; 5224. The second thread; 5111. The third end surface;

5112. The third cylindrical surface; 5113. The first boss; 5121. The fourth end surface;

5122. The fourth cylindrical surface; 5123. The fifth end surface; 5124. The fourth through hole.

detailed description

The term "upright" in this application should be understood as placing the top of the item facing the sky and placing the bottom of the item facing the ground. "Inverted" shall be understood as placing the top of the item towards the ground and the bottom of the item towards the sky. The "top" mentioned in this application should be understood as the end close to the "cover", and the "bottom" should be understood as the end away from the "cover".

Referring to Fig. 1 and Fig. 3, the present embodiment shows a water cup, which includes a cup body 7, a cover 8 and a sealing gasket 6, the mouth of the cup body 7 is provided with threads, the cover 8 is detachably connected to the threads, and the sealing gasket 6 is arranged between the lid 8 and the cup body 7 to realize the airtight connection between the lid 8 and the cup body 7 .

Referring to Fig. 4, the cover 8 includes a base 1, a tea compartment 5, and an end cover 4, the base 1 is used to cooperate with the screw on the mouth of the water cup to fasten the cover 8 to the water cup, and the tea compartment 5 is used to accommodate an appropriate amount of tea leaves to Soak the tea leaves and separate the tea leaves from the tea water at an appropriate time. The end cover 4 is used to open or close the water outlet at an appropriate time. When the tea leaves need to be steeped, the end cover 4 is closed; 4 on. The top of the tea bin 5 is inserted into the base 1, and the end cover 4 is plugged into the base 1. The base 1 and the end cover 4 clamp the top of the tea bin 5. In order to prevent the water in the cup from passing through the base 1, the tea bin The gap between 5 and end cover 4 leaks out of the water cup, the part where the top of the tea compartment 5 is connected to the base 1 is provided with a first sealing ring 2, and the part where the end cover 4 is connected to the base 1 is provided with a second sealing ring 3.

Referring to Fig. 5 and Fig. 7, the tea bin 5 includes a bin body 52 and a bin cover 51. When the tea bin 5 is soaking tea leaves, the bin cover 51 and the bin body 52 are airtightly matched, as shown in Fig. 7; , the bin cover 51 is separated from the bin body 52, and a gap is formed between the bin cover 51 and the top of the bin body 52, and the air outside the bin body 52 enters the bin body 52 through the gap, as shown in FIG. 5 . The soaking and filtering functions of the tea compartment 5 are realized through the staged airtight cooperation of the compartment body 52 and the compartment cover 51 .

Referring to Fig. 9 and Fig. 11, the bin body 52 includes a filter element 522 and a filter cover 521, the filter element 522 and the filter cover 521 are screwed together to realize a detachable airtight connection, the filter cover 521 is screwed on the top of the filter element 522, and the filter element 522 and the filter cover 521 The formed cavity is used to accommodate tea leaves. The detachable threaded connection can facilitate the placement of tea leaves and clean up tea residues. The airtight connection can realize the isolation of the top of the bin body 52 from the outside air.

23 and 24, the filter cover 521 includes a first end surface 5211, a first cylindrical surface 5213 and a first flange 5215, the first end surface 5211 is provided with a plurality of first through holes 5212, and the first cylindrical surface 5213 is perpendicular to the first The end surface 5211 extends, the first flange 5215 is perpendicular to the first cylindrical surface 5213 and extends radially outward, the first cylindrical surface 5213 is located between the first flange 5215 and the first end surface 5211, and the first flange 5215 is provided with multiple The third through hole 5216, the first cylindrical surface 5213 is provided with a first thread 5214, the first thread 5214 extends coaxially with the first cylindrical surface 5213, and the first cylindrical surface 5213 is a thin-walled structure.

Referring to Figure 10, the filter element 522 includes a second end surface 5221 and a second cylindrical surface 5223, the second cylindrical surface 5223 is perpendicular to the second end surface 5221, the second end surface 5221 is provided with a plurality of second through holes 5222, and the second cylindrical surface 5223 isolates the filter element 522 inside and outside the gas, the second cylindrical surface 5223 away from the end of the second end surface 5221 is provided with a second thread 5224, the second thread 5224 extends coaxially with the second cylindrical surface 5223, the second thread 5224 and the first filter cover 521 A thread 5214 cooperates to realize the threaded connection between the filter element 522 and the filter cover 521, and the second cylindrical surface 5223 is a thin-walled structure.

6 and 8, the pressure plate 511 includes a third end surface 5111, a third cylindrical surface 5112 and a first boss 5113, the third cylindrical surface 5112 is perpendicular to the third end surface 5111, and the first boss 5113 is perpendicular to the third end surface 5111 And it extends away from the third cylindrical surface 5112, and the third cylindrical surface 5112 is a thin-walled structure. The cover 51 includes a pressing plate 511 and a sealing sleeve 512 , and the sealing sleeve 512 is partially hermetically sleeved on the pressing plate 511 . The sealing sleeve 512 is made of elastic material. The sealing sleeve 512 includes a fourth end surface 5121, a fourth cylindrical surface 5122, a fifth end surface 5123 and a fourth through hole 5124. The fourth cylindrical surface 5122 is perpendicular to the fourth end surface 5121, and the fifth end surface 5123 is perpendicular to the fourth cylindrical surface 5122, the fourth through hole 5124 runs through the fifth end surface 5123, the fourth cylindrical surface 5122 is located between the fourth end surface 5121 and the fifth end surface 5123, and the fourth cylindrical surface 5122 is a thin-walled structure. The pressure plate 511 and the sealing sleeve 512 realize airtight socketing through the interference fit between the third cylindrical surface 5112 and the fourth cylindrical surface 5122, the outer surface of the third cylindrical surface 5112 cooperates with the inner surface of the fourth cylindrical surface 5122, and the third end surface 5111 contact with the fourth end face 5121 .

Referring to FIG. 1 , the pressure plate 511 squeezes the sealing sleeve 512 under the action of the end cover 4 so that the fourth end surface 5121 of the sealing sleeve 512 abuts against the first flange 5215 of the filter cover 521 while the fifth end surface 5123 of the sealing sleeve 512 abuts The first end surface 5211 and the fourth end surface 5121 of the filter cover 521 cover the third through hole 5216 of the first flange 5215, the fourth cylindrical surface 5122 of the sealing sleeve 512 produces elastic deformation, and the sealing sleeve 512 and the first protrusion of the filter cover 521 The lip 5215 forms a tight fit.

Referring to Fig. 2, the sealing sleeve 512 elastically resets after the end cover 4 is separated from the pressure plate 511 so that the fourth end surface 5121 of the sealing sleeve 512 is separated from the first flange 5215 of the filter cover 521, and the first through hole 5212 passes through the first flange 5215 and the sealing The gap between the sleeves 512 communicates the cavity of the filter element 522 with the outside world.

13 and 15, the end cover 4 includes a base 48, a cover 47 and a rotating shaft 42, the end cover 4 is plugged into the base 1, and the cover 47 is rotationally coupled with the base 48 through the rotating shaft 42, so that the cover 47 can Rotate around the rotating shaft 42 relative to the base 48 to realize the opening and closing of the cover 47 . The seat body 48 includes a fifth through hole 4810, as shown in Figure 28 and Figure 29, the fifth through hole 4810 is used to sleeve the first boss 5113 of the pressure plate 511, when the first boss 5113 is inserted into the fifth through hole 4810 , the first boss 5113 slides axially in the fifth through hole 4810, as shown in FIG. 1 and FIG. 2 . The cover body 47 includes a second protrusion 4710 protruding from the cover body 47 , as shown in FIG. 26 . The second boss 4710 cooperates with the first boss 5113 of the pressure plate 511 in stages. When the cover 47 is closed, the second boss 4710 abuts against the first boss 5113. When the cover 47 is opened, the second boss 4710 The first boss 5113 is released, and the first boss 5113 slides axially in the fifth through hole 4810 .

When the cover 47 is closed, the second boss 4710 of the cover 47 is inserted into the fifth through hole 4810 of the base 48, and squeezes the first boss 5113 in the fifth through hole 4810, and the first boss 5113 drives the pressure plate 511 squeezes the sealing sleeve 512, the fifth end surface 5123 of the sealing sleeve 512 abuts against the first end surface 5211 of the filter cover 521, the fourth cylindrical surface 5122 of the sealing sleeve 512 elastically deforms and stores elastic potential energy, and the fourth end surface of the sealing sleeve 512 5121 and the first flange 5215 of the filter cover 521 are tightly fitted, while the fourth end surface 5121 of the sealing sleeve 512 covers the third through hole 5216 on the first flange 5215, so the compartment cover 51 and the compartment body 52 form an effective Closed connection. Because the surrounding wall of the tea bin 5 has no openings, only the top and the bottom have holes, therefore, the top of the tea bin 5 is in an airtight state, and the bottom of the tea bin 5 communicates with the outside through the second through hole 5222 .

Figures 30-34 show the process of separating tea and water in the water cup disclosed in this embodiment. The shaded area in the figure represents the position of boiling water distribution. The total amount of water in each figure remains the same, and the position of the liquid level in each figure is based on the actual situation. Isometric drawing. Referring to Figure 30, after opening the lid 8, put an appropriate amount of boiling water into the cup body 7, and then tighten the lid 8 to the cup body 7, as shown in Figure 31, the liquid level is lower than the bottom of the tea compartment 5. Turn the water cup upside down so that the lid of the cup faces down and the bottom of the cup faces up. The boiled water in the cup body 7 wraps the tea compartment 5, and the cup body 7 forms an air layer and a boiled water layer from top to bottom, and the boiled water layer wraps the tea compartment 5, and the tea compartment 5 Located inside the boiling water layer, as shown in Figure 32. The air in the tea compartment 5 can only enter the boiling water through the second through hole 5222, and finally merge with the air layer. After the air leaves the tea compartment 5, the air pressure in the tea compartment 5 will decrease. After the air enters the air layer, the air pressure will be reduced. become larger, the boiled water above the tea compartment 5 enters the tea compartment 5 through the second through hole 5222 under the combined action of gravity and the air pressure of the air layer, until the tea compartment 5 is filled with boiling water, as shown in Figure 33. After the tea bin 5 is full of boiling water, put the water cup upright, with the cup lid up and the bottom of the cup down. Since there is no air or only a small amount of air in the tea bin 5 filled with boiling water, the air pressure in the tea bin 5 will be far away. less than the air pressure inside the cup body 7, and a standard atmospheric pressure can support a water column about 10 meters high. Therefore, the surface tension of the water on the second through hole 5222 at the bottom of the tea compartment 5 is not destroyed. The boiling water in the tea compartment 5 will not flow out of the tea compartment 5 through the second through hole 5222, that is, the boiling water in the tea compartment 5 is restricted inside the tea compartment 5 by the air pressure outside the tea compartment 5, as shown in Figure 34. In order to keep the second through hole 5222 from destroying the surface tension of the water, the aperture of the second through hole 5222 is suitable to be within 8 millimeters. Since the filter element 522 is used as filtering tea and tea leaves in this application, the aperture of the second through hole 5222 is preferably 1 mm. mm, so the surface tension of the boiling water near the second through hole 5222 is not destroyed, and the boiling water in the tea compartment 5 remains in the tea compartment 5 to soak the tea leaves.

When the cover 47 is opened, the second boss 4710 of the cover 47 withdraws from the fifth through hole 4810 of the seat 48, the second boss 4710 releases the first boss 5113 in the fifth through hole 4810, and the sealing sleeve 512 The elastically deformed fourth cylindrical surface 5122 resets under the action of the elastic force and makes the fourth end surface 5121 of the sealing sleeve 512 separate from the first flange 5215 of the filter cover 521, the first flange 5215 forms a gap with the fourth end surface 5121, and the second The four end surfaces 5121 no longer cover the third through hole 5216 on the first flange 5215, and the air in the cup body 7 enters the gap formed by the first flange 5215 and the fourth end surface 5121 through the third through hole 5216, thereby making the The air at the top and bottom of the bin body 52 communicates, the air pressure between the top and the bottom of the bin body 52 is balanced, the surface tension of the water on the second through hole 5222 is not enough to offset the gravity of the tea, the tea brewed in the bin body 52 Under the action of gravity, it is discharged through the second through hole 5222 at the bottom of the bin body 52, and the brewed tea enters the cup body 7 from the tea bin 5, as shown in FIG. 35 .

Referring to FIG. 14 , the base 1 includes a fifth cylinder 15 , a second flange 13 , a first groove 12 , a third boss 472 , a second groove 11 and a third thread 16 , and the second flange 13 radially The fifth cylindrical surface 15 is arranged inwardly, the first groove 12 is arranged radially inwardly on the fifth cylindrical surface 15, the third boss 472 is arranged radially inwardly on the fifth cylindrical surface 15, and the second groove 11 is arranged On the end surface of the fifth cylindrical surface 15 , the first groove 12 is located between the second flange 13 and the second groove 11 , and the third thread 16 is disposed on a side away from the second groove 11 . The fifth cylindrical surface 15 is used to partially wrap the seat body 48, the second flange 13 is used to cooperate with the first flange 5215 of the filter cover 521, and a first sealing ring is arranged between the first flange 5215 and the second flange 13 2 to realize the airtight connection between the filter cover 521 and the base 1, the first groove 12 is used to clamp the seat body 48, the third boss 472 is used to limit the rotation of the seat body 48, and the second groove 11 is used to The second sealing ring 3 is received to realize the airtight connection between the base 1 and the seat body 48 , and the third thread 16 cooperates with the thread on the mouth of the water cup.

28 and 29, the base 48 also includes a sixth cylinder 4811, a third flange 489 and a third groove 481, the third flange 489 is arranged radially outward on the sixth cylinder 4811, the sixth cylinder The surface 4811 is used to cooperate with the fifth cylindrical surface 15 of the base 1, the third flange 489 is used to insert into the first groove 12 of the base 1 to limit the axial movement between the base 1 and the seat body 48, the second The three grooves 481 cooperate with the third boss 472 of the base 1 to limit the rotation between the base 1 and the base 48 . The base 1 and the seat body 48 realize axial clamping through the cooperation of the third flange 489 and the first groove 12 , and realize relative static coupling through the cooperation of the third groove 481 and the third flange 489 .

Referring to FIG. 15 , the seat body 48 is provided with a first locking portion 482 and a first coupling portion 485 coupled with the cover 47 is provided on the opposite side of the first locking portion 482 , and the cover 47 is provided with a stepwise cooperation with the first locking portion 482 The second locking portion and the second coupling portion 473 rotatably coupled to the first coupling portion 485 are disposed on the opposite side of the second locking portion, and the rotating shaft 42 passes through the first coupling portion 485 and the second coupling portion 473 . When the cover body 47 is in the closed state, the locking of the closed state of the cover body 47 is realized through the cooperation of the first locking portion 482 and the second locking portion. When the cover 47 is in the open state, the first locking part 482 and the second locking part are disengaged and are in a non-cooperating state, and the first locking part 482 and the second locking part are realized through the rotational coupling of the first coupling part 485 and the second coupling part 473. The phased cooperation of the department. The second coupling part 473 of the cover body 47 is provided with an oblong hole 476, and the dimension of the length direction of the oblong hole 476 is larger than the outer diameter of the rotating shaft 42 so that the cover body 47 can move along the length direction of the oblong hole 476, and the axial direction of the oblong hole 476 is along the The axial direction of the rotating shaft 42 is set, and the first coupling part 485 of the seat body 48 realizes the fixed connection with the rotating shaft 42 through an interference fit. Therefore, under the cooperation of the rotating shaft 42 and the oblong hole 476, the Pushing the cover body 47 back and forth can make the cover body 47 have a certain degree of displacement relative to the seat body 48, that is, while forming a rotational connection between the second coupling part 473 of the cover body 47 and the first coupling part 485 of the seat body 48. Form a mobile connection. The second locking part of the cover body 47 is provided with a third boss 472 that cooperates with the first locking part 482 of the seat body 48 , and the first locking part 482 of the seat body 48 is provided with a slope that cooperates with the third boss 472 of the cover body 47 484 , the inclined surface 484 is provided with a first recess 483 , and the third boss 472 slides along the inclined surface 484 and enters the first recess 483 . When the cover body 47 and the seat body 48 slide relatively, the third protrusion 472 either breaks away from the first recess 483 or enters the first recess 483 , that is, the first recess 483 receives the third protrusion 472 in stages. When the cover 47 is closed, the third boss 472 contacts the slope 484 and slides along the slope 484 toward the first recess 483; when the cover 47 is opened, the third boss 472 breaks away from the first recess 483 The back does not touch the inclined surface 484 , that is, a staged sliding fit is formed between the boss and the inclined surface 484 .

Referring to FIG. 13 , the cover body 47 is further provided with a torsion spring 41 , and the rotating shaft 42 axially passes through the torsion spring 41 . The torsion spring 41 includes a first end 421, a second end 422 and a shaft 423 between the first end 421 and the second end 422, the first end 421 and the second end 422 are perpendicular to the shaft 423, as shown in Figure 20.

Referring to FIG. 28 , the first coupling portion 485 of the seat body 48 is set to partially receive the first cavity 488 of the torsion spring 41 , and the first cavity 488 has a shape adapted to the shape of the first end portion 421 and the shaft portion 423 of the torsion spring 41 . The first cavity 488 is also provided with a sixth groove 486, the first cavity 488 receives the shaft portion 423 of the torsion spring 41, the sixth groove 486 receives the first end 421 of the torsion spring 41, and the first coupling portion 485 is also provided with a seventh through hole 487. The diameter of the seventh through hole 487 is slightly smaller than the outer diameter of the rotating shaft 42 to achieve the interference fit between the rotating shaft 42 and the seventh through hole 487, thereby realizing the fixed connection between the rotating shaft 42 and the base 48.

Referring to FIG. 27 , the second coupling portion 473 of the cover body 47 is set to partially receive the second cavity 475 of the torsion spring 41 . The second cavity 475 is also provided with a fourth groove 477, the second cavity 475 receives the shaft portion 423 of the torsion spring 41, the fourth groove 477 receives the second end 422 of the torsion spring 41, and the oblong hole 476 is located An end of the second cavity 475 passes through the second coupling portion 473 .

Since the first end 421 of the torsion spring 41 is embedded in the sixth groove 486 of the first cavity 488 of the seat body 48, the second end 422 of the torsion spring 41 is embedded in the fourth cavity of the second cavity 475 of the cover 47. slot 477, the cover 47 slides with the rotating shaft 42 through the oblong hole 476 and moves relative to the radial direction of the rotating shaft 42. Therefore, during the rotation of the cover 47 relative to the base 48, the first end 421 of the torsion spring 41 Relative to the seat body 48 is fixed, and the second end 422 of the torsion spring 41 is driven by the cover 47 to store energy in the torsion spring 41, or the second end 422 of the torsion spring 41 drives the cover 47 to rotate to achieve The release of the elastic potential energy of the torsion spring 41.

In order to prevent the torsion spring 41 from driving the cover 47 to rotate too fast, a buffer structure is provided on the first coupling portion 485 of the seat 48 and the second coupling portion 473 of the cover 47 to reduce the rotation speed of the cover 47 . Referring to FIG. 26, the second coupling portion 473 of the cover body 47 is also provided with a sixth through hole 474, the sixth through hole 474 communicates with the oblong hole 476, the sixth through hole 474 is used to receive the plastic part 43, and the sixth through hole 474 communicates with the oblong hole 476. The plastic part 43 is interference fit, the plastic part 43 abuts against the rotating shaft 42 located in the oblong hole 476, and is slidably fitted with the cylindrical surface of the rotating shaft 42, the plastic part 43 is a columnar structure, and the end of the plastic part 43 that matches the rotating shaft 42 is set The tapered surface is in contact with the cylindrical surface of the rotating shaft 42 to increase the contact area and thus increase the resistance when the cover 47 rotates, as shown in FIG. 12 , FIG. 21 and FIG. 22 . Since the second connecting portion 473 of the cover 47 is embedded with the plastic part 43, the plastic part 43 is slidingly fitted with the rotating shaft 42, so when the cover 47 drives the plastic part 43 to rotate, the plastic part 43 slides against the rotating shaft 42 to buffer the rotation The effect of avoiding because of the hot water on the lid body 47 throws out the bowl lid and causes the danger of scalding when the bowl lid rotates rapidly.

Because the first coupling portion 485 of the seat body 48 is fixedly coupled with the rotating shaft 42, the second coupling portion 473 of the cover body 47 is connected with the rotating shaft 42 at the same time, and the oblong hole 476 of the cover body 47 can be connected with respect to the rotating shaft simultaneously. The radial direction of 42 moves or rotates around rotating shaft 42. Hold the cup body 7 with one hand, push the second coupling part 473 of the cover body 47 with the thumb to make the cover body 47 slide relative to the seat body 48, and the third boss 472 of the second locking part of the cover body 47 is disengaged from the seat body 48 The first recess 483 of the first locking portion 482 realizes the unlocking of the cover body 47 and the seat body 48 . Due to the action of the torsion spring 41, when the third boss 472 of the second locking portion of the cover 47 is disengaged from the first recess 483 of the first locking portion 482 of the seat 48, the cover 47 rotates around the shaft 42 to realize the cover. The automatic opening of body 47, as shown in Figure 2 and Figure 22.

Referring to Fig. 29 , the seat body 48 is provided with a first blind hole 480, and the first blind hole 480 is arranged toward the cover body 47 from the side of the seat body 48 meeting the cup, and the cover body 47 is provided with a second blind hole 478, and the second blind hole 478 It is arranged from the side away from the seat body 48 to the side close to the seat body 48, as shown in FIG. 25 . The first blind hole 480 accommodates the first magnet 49 , and the first magnet 49 is interference fit with the first blind hole 480 . The second blind hole 478 accommodates the second magnet 46, and the second magnet 46 is interference fit with the second blind hole 478. When the cover 47 is closed, the first magnet 49 and the second magnet 46 have opposite magnetic poles and opposite magnetism. When the third boss 472 of the cover body 47 has not been inserted into the first recess 483 of the seat body 48, the first magnet 49 is not coaxial with the second magnet 46. When the recess 483 is formed, the first magnet 49 and the second magnet 46 are coaxial.

Since the first magnet 49 and the second magnet 46 are provided, and the magnetic poles of the first magnet 49 and the second magnet 46 are opposite and the magnetic poles are opposite, when the cover 47 is pressed down, the second locking part of the cover 47 The third protrusion 472 of the seat body 48 is in contact with the inclined surface 484 of the first locking portion 482 and slides along the inclined surface 484, as shown in FIG. 16 . When the cover 47 abuts against the seat 48 , the third boss 472 of the cover 47 faces the first recess 483 of the seat 48 , as shown in FIG. 18 . At this time, the first magnet 49 and the second magnet 46 have opposite magnetic poles and opposite magnetic poles, the first magnet 49 and the second magnet 46 are partially misaligned, and the second magnet 46 drives the cover body 47 to slide under the action of the magnetic force until the second magnet 46 and the second magnet 46 are aligned with each other. The first magnet 49 is coaxial, as shown in FIG. 1 . During the movement of the cover body 47, the third boss 472 of the second locking part of the cover body 47 is inserted into the first recess 483 of the slope 484 of the first locking part 482 of the seat body 48. At this time, the cover body 47 In the locked state, as shown in Figure 15 and Figure 19.

Referring to FIG. 2 , the first locking portion 482 of the seat 48 is provided with a water outlet, and when the cover 47 is in an open state, the water outlet is used to discharge the liquid in the cup. Referring to FIG. 19 , the second locking part of the cover body 47 is provided with a seal 45 and a cover plate 44. The seal 45 includes a first part 451 and a second part 452. The first part 451 passes through the second locking part and when the cover 8 is closed The second portion 452 is disposed between the cover body 47 and the cover plate 44 when abutting against the water outlet, and the cover body 47 and the cover plate 44 clamp the second portion 452 . 17, the first part 451 protrudes from the second part 452 in the thickness direction, the edge of the second part 452 protrudes from the first part 451, and the cover 47 and the cover plate 44 clamp the second part 452 to protrude from the first part. 451, the cover plate 44 is fixedly connected to the cover body 47. As an exemplary embodiment, the cover plate 44 can be fixedly connected to the cover body 47 by ultrasonic welding. In order to make the cover plate 44 and the upper surface of the cover body 47 flush Flat, a second recess 479 is set on the side of the cover body 47 receiving the cover plate 44, the second recess 479 has a shape adapted to the shape of the cover plate 44, and the depth of the second recess 479 is slightly greater than that of the cover plate 44 thickness. The cover plate 44 is also provided with a third recess 470 on the side where the second recess 479 receives the sealing member 45. The third recess 470 has a shape adapted to the shape of the second portion 452 of the sealing member 45. The third recess The depth of 470 is slightly greater than the thickness of the edge of the second portion 452 . The cover plate 44 is also provided with an eighth through hole 471 on the side where the third recess 470 receives the sealing member 45. The eighth through hole 471 has a shape adapted to the shape of the first portion 451 of the first sealing member 45. The through hole 471 receives the first portion 451 of the seal 45 .

1 and 23, the cover 47 has an open state and a closed state. When the cover 47 is in the open state, the liquid in the cup can be discharged through the water outlet. When the cover 47 is in the closed state, the liquid in the cup is drained. Sealed in a cup.

15, the end cap 4 includes a cover plate 44, a seal 45, a second magnet 46, a cover body 47, a torsion spring 41, a rotating shaft 42, a plastic part 43, a seat body 48 and a first magnet 49, the cover plate 44 and the seat The body 48 clamps the sealing member 45 and the second magnet 46. The rotating shaft 42 runs through the torsion spring 41 and is tightly connected with the seat body 48. The torsion spring 41 and the rotating shaft 42 are accommodated in the cavity formed by the cover body 47 and the seat body 48. The torsion force Both ends of the spring 41 are respectively embedded in the base 48 and the cover 47 to realize the torque transmission between the cover 47 and the base 48 .

The opening process of the cover 47 is as follows, the tiger's mouth of the palm blocks the cover 8, the index finger is located at the junction of the cover 47 and the seat 48, the thumb is located at the locking part of the seat 48 and the cover 47, and the index finger pushes the first part of the cover 47. At the two joints, the cover body 47 is moved toward the direction of the thumb, and the third boss 472 of the second locking part of the cover body 47 disengages from the first recess 483 of the first locking part 482 of the seat body 48, as shown in FIG. 18 . The cover body 47 rotates around the rotating shaft 42 under the action of the torsion spring 41 to realize the opening of the cover body 47 , as shown in FIG. 2 . Because the cover 47 rotates with the plastic part 43 at the same time, the plastic part 43 slides along the surface of the rotating shaft 42 to increase the resistance of the cover 47 to rotate, thereby realizing the slow opening of the cover 47 to avoid the liquid on the cover 47 from being thrown occurrence of the phenomenon. After the lid body 47 is opened, the bin cover 51 of the tea bin 5 is separated from the bin body 52, the top of the tea bin 5 is in a non-airtight state, and the top of the tea bin 5 communicates with the outside world. The third through hole 5216 of the cover 521 enters into the cavity formed by the first flange 5215 of the filter cover 521 and the base 48, and then flows out through the water outlet, as shown in FIG. 2 .

When the cover body 47 is in the open state, in order to prevent people from seeing the third through hole 5216 of the filter cover 521 from the water outlet, a plurality of third through holes 5216 on the first flange 5215 of the filter cover 521 are distributed on the first flange 5216 of the water outlet. In addition to the projection area on the first flange 5215, the first flange 5215 is also provided with a fifth groove 5217. The fifth groove 5217 is matched with the fourth boss 14 of the base 1, and the fourth boss 14 snaps into the fifth groove. The groove 5217 limits the rotation of the filter cover 521 relative to the base 1 , so that the third through hole 5216 on the filter cover 521 is located outside the projected area of the water outlet on the first flange 5215 .

The closing process of the cover 47 is as follows. The tiger's mouth of the palm clamps the cover 8. The index finger is located at the joint between the cover 47 and the seat 48. The thumb is located at the locking part of the seat 48 and the cover 47. Lift the index finger to drive the cover 47. Rotate toward the direction of the thumb, when the third boss 472 of the second locking part of the cover body 47 is in contact with the slope 484 of the first locking part 482 of the seat body 48, the index finger buckles the cover body 47, and the third boss 472 moves along the The inclined surface 484 slides, as shown in Figure 16, when the seal 45 of the cover body 47 abuts against the water outlet of the seat body 48, the third boss 472 faces the first recess 483, and the first magnet 49 of the seat body 48 The magnetic poles of the second magnet 46 of the cover 47 are opposite and partially overlapped. Under the attraction of the magnetic force, the second magnet 46 drives the cover 47 to slide until the second magnet 46 is coaxial with the first magnet 49. At this time, the cover 47 The boss is inserted into the first recess 483 of the seat body 48 to realize the locking of the closed state of the cover body 47 , as shown in FIG. 19 .

Implementation mode two

Referring to Fig. 36, Fig. 37 and Fig. 38, the matching structure of the tank cover 51 and the filter cover 521 disclosed in this embodiment is improved on the basis of the first embodiment, and the sealing sleeve 512 in the first embodiment is replaced with a sealing ring. The sealing ring is fixedly connected to the third end surface 5111 of the pressure plate 511, and the fixed connection between the sealing ring and the pressure plate 511 can be realized by ultrasonic welding, and the cylindrical helical compression spring is arranged between the pressure plate 511 and the first end surface 5211 of the filter cover 521. When the cover body 47 squeezes the pressure plate 511, the pressure plate 511 drives the sealing ring to squeeze the first flange 5215 of the filter cover 521 to realize the airtight connection between the bin cover 51 and the filter cover 521, and the cylindrical helical compression spring is squeezed by the pressure plate 511 to shrink Store elastic potential energy, as shown in Figure 36. When the cover 47 releases the pressure plate 511, the cylindrical helical compression spring releases the elastic potential energy, and the pressure plate 511 drives the sealing ring to break away from the first flange 5215 of the filter cover 521 under the action of the elastic force, as shown in FIG. 37 .

Claims (10)

1. A tea cabin comprises a cabin body (52) and a cabin cover (51), wherein a second through hole (5222) is formed in the bottom of the cabin body (52), the tea cabin is characterized in that the cabin cover (51) is in stage closed fit with the cabin body (52), the cabin body (52) comprises a filter element (522) and a filter cover (521) detachably and hermetically connected with the filter element (522), a cavity formed by the filter element (522) and the filter cover (521) is used for containing tea, the filter cover (521) comprises a first end face (5211) provided with a first through hole (5212), a first cylindrical surface (5213) extending perpendicular to the first end face (5211) and a first flange (5215) which is perpendicular to the first cylindrical surface (5213) and protrudes outwards in the radial direction, the filter element comprises a filter element (522), a first cylindrical surface (5213) and a second cylindrical surface (5223), wherein the first cylindrical surface (5213) is positioned between a first flange (5215) and a first end surface (5211), the filter element (522) comprises a second end surface (5221) provided with a second through hole (5222) and the second cylindrical surface (5223) which is perpendicular to the second end surface (5221) and extends towards the filter cover (521), the second cylindrical surface (5223) isolates gas inside and outside the filter element (522), the bin cover (51) comprises a pressing plate (511) and a sealing sleeve (512) which is partially hermetically sleeved with the pressing plate (511), and the pressing plate (511) presses the sealing sleeve (512) under the action of the end cover (4) to enable the sealing sleeve (512) and the first flange ((5213)) of the filter cover (521) of the bin body (52) 5215 The sealing sleeve (512) is in close fit, the matched part of the sealing sleeve (512) and the first end face (5211) of the filter cover (521) is elastically deformed, the sealing sleeve (512) is elastically reset after the end cover (4) is separated from the pressing plate (511) so that the sealing sleeve (512) is separated from the first flange (5215), and the first through hole (5212) is communicated with the cavity of the filter element (522) with the outside through a gap between the first flange (5215) and the sealing sleeve (512).

2. The tea caddy of claim 1, wherein the filter cap (521) further comprises a first thread (5214) disposed on the first cylindrical surface (5213) and extending coaxially with the first cylindrical surface (5213), and wherein the filter cartridge (522) further comprises a second thread (5224) removably engaged with the first thread (5214), the second thread (5224) being disposed on the second cylindrical surface (5223) at an end distal from the second end surface (5221), the second thread (5224) extending coaxially with the second cylindrical surface (5223).

3. The tea leaf bin according to claim 1, wherein the filter cover (521) further comprises a third through hole (5216) penetrating through the first flange (5215), the pressure plate (511) comprises a third end surface (5111), a third cylindrical surface (5112) extending perpendicularly to the third end surface (5111) and a first boss (5113) extending perpendicularly to the third end surface (5111) and facing away from the third cylindrical surface (5112), the seal cover (512) comprises a fourth end surface (5121), a fourth cylindrical surface (5122) extending perpendicularly to the fourth end surface (5121), a fifth end surface (5123) perpendicular to the fourth cylindrical surface (5122) and a fourth through hole (5124) penetrating through the fifth end surface (5123), the fourth cylindrical surface (5122) is located between the fourth end surface (5121) and the fifth end surface (5123), the pressure plate (511) and the seal cover (512) are abutted against each other by the third end surface (5112) and the fourth cylindrical surface (5122), the seal cover (5121) is sleeved with the fourth end surface (5123) by the third end surface (5112), the seal cover (521) is elastically abutted against the outer surface of the fourth end surface (5121), the seal cover (5121) is matched with the fourth end surface of the fourth end surface (5122), the seal cover (5121) is matched with the fourth end surface of the fourth end surface, the seal cover (5121) and the fourth end surface (5122), the seal cover (5121) in a stage, the elastic material is matched with the filter cover (5121), the elastic material, the seal cover (5121) and the elastic material, the fourth end surface (5121) is matched with the seal cover (5121) in the fourth end surface, the fourth end surface (5121) and the elastic material, the elastic sealing cover (5121) in the fourth end surface is matched with the fourth end surface (5121), when the fourth end face (5121) is matched with the first flange (5215), the fourth end face (5121) covers the third through hole (5216) of the first flange (5215), the fourth cylindrical surface (5122) of the sealing sleeve (512) generates elastic deformation, and the first cylindrical surface (5213), the second cylindrical surface (5223), the third cylindrical surface (5112) and the fourth cylindrical surface (5122) are all thin-walled structures.

4. A lid comprising a base (1) for screw-fitting with the mouth of a water cup, a tea leaf cartridge (5) for containing tea leaves and an end cap (4) for opening or closing a water outlet, characterised in that the tea leaf cartridge (5) is in accordance with any one of claims 1 to 3.

5. A lid according to claim 4, wherein the end cap (4) comprises a base body (48) inserted into the base (1), a lid body (47) rotatably coupled to the base body (48), and a rotating shaft (42) coupling the base body (48) and the lid body (47), the base body (48) comprises a fifth through hole (4810) sleeved with a first boss (5113) of the pressure plate (511), the first boss (5113) is inserted into the fifth through hole (4810), the first boss (5113) is slidably fitted with the fifth through hole (4810), the lid body (47) comprises a second boss (4710) protruding out of the base body (48), the second boss (4710) is stepwise fitted with the first boss (5113) of the pressure plate (511), the base (1) and the base body (48) are axially coupled by means of a snap-fit, the base body (48) is partially inserted into the base (1), the base (1) comprises a fifth boss (15) partially wrapping the base body (48), the fifth boss (15) is provided with a second flange (13) radially inwardly disposed, a second flange (13) is disposed on the fifth boss (15), a sealing ring (15) is disposed between the second flange (13) and a radial inner side of the first cylindrical surface (521), and a sealing ring (15) disposed on the first flange (521), the first groove (12) is used for being clamped with the base body (48), the fifth cylindrical surface (15) is further provided with a third boss (472) which is inward in the radial direction, the third boss (472) is used for limiting the rotation of the base body (48), the end face of the fifth cylindrical surface (15) is provided with a second groove (11), the second groove (11) is used for receiving a second sealing ring (3) to achieve the airtight connection of the base (1) and the base body (48), the fifth cylindrical surface (15) is further provided with a third thread (16) which is matched with the thread of the opening of the water cup, the base body (48) comprises a sixth cylindrical surface (4811) which is matched with the fifth cylindrical surface (15) of the base (1), the sixth cylindrical surface (4811) is provided with a third flange (489) which is outward in the radial direction, the third flange (489) is used for being inserted into the first groove (12) of the base (1) to limit the axial movement between the base (1) and the base body (48), the sixth cylindrical surface (4811) is further provided with a third groove (481), and the third groove (481) and the third boss (481) of the base (1) is matched with the base body (472) to limit the rotation of the base body (48).

6. A lid as claimed in claim 5, wherein said seat (48) further comprises a first locking portion (482) and a first coupling portion (485) coupled to the lid (47), the lid (47) further comprises a second locking portion engaged with the first locking portion (482) in stages, a second coupling portion (473) rotatably coupled to the first coupling portion (485), and a torsion spring (41) accommodated between the first locking portion (482) and the second locking portion, and the rotation shaft (42) passes through the first coupling portion (485), the second coupling portion (473), and the torsion spring (41).

7. A lid according to claim 6, wherein the first coupling portion (485) of the seat body (48) is fixedly coupled to the rotary shaft (42), the first coupling portion (485) of the seat body (48) is provided with a first cavity (488) partially receiving the torsion spring (41), the first cavity (488) has a shape adapted to the outer shapes of the first end portion (421) and the shaft portion (423) of the torsion spring (41), a movable coupling is further provided between the second coupling portion (473) of the lid body (47) and the first coupling portion (485) of the seat body (48), the second coupling portion (473) is provided with an oblong hole (476) and a second cavity (475) partially receiving the torsion spring (41), the lengthwise direction of the oblong hole (476) is provided along the moving direction of the lid body (47), the axial direction of the oblong hole (476) is provided along the axial direction of the rotary shaft (42), the second cavity (476) has a shape adapted to the outer shapes of the second end portion (422) and the shaft portion (423) of the torsion spring (41), the oblong hole (476) is slidably fitted with the rotary shaft (47) in the radial direction of the rotary shaft (42), and the locking portion (472) of the lid body (47) is provided with the locking portion (472) slidably fitted with the second locking portion (41), the first locking part (482) of the seat body (48) is provided with a slope (484) which is in sliding fit with the third boss (472) of the cover body (47) in a staged mode, the slope (484) is provided with a first concave pit (483), and the first concave pit (483) is used for receiving the third boss (472) in a staged mode.

8. A lid as claimed in claim 7, characterised in that the first locking portion (482) of the body (48) is provided with a water outlet, the second locking portion of the lid (47) is provided with a seal (45) and a lid plate (44), the seal (45) comprising a first portion (451) and a second portion (452), the first portion (451) extending through the second locking portion and abutting against the water outlet when the lid (8) is closed, the second portion (452) being provided between the lid (47) and the lid plate (44), the lid (47) and the lid plate (44) sandwiching the second portion (452).

9. Lid as in claim 8, characterized in that said cover (47) further comprises a plastic member (43), said plastic member (43) is embedded in said second coupling portion (473) of said cover (47) and is slidably engaged with said rotating shaft (42), said base (48) further comprises a first magnet (49), said first magnet (49) is embedded in said base (48), said cover (47) further comprises a second magnet (46), said second magnet (46) is embedded in said cover (47), said first magnet (49) and said second magnet (46) have opposite magnetic poles and opposite magnetic poles when said cover (47) is closed.

10. A drinking cup comprising a cup body (7), a lid (8) screw-fitted to the cup body (7), a gasket (6) between the lid (8) and the cup body (7), characterized in that the lid (8) is a lid according to any one of claims 4 to 9.

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