CN114098394A

CN114098394A - Tea leaf bin, cover and water cup

Info

Publication number: CN114098394A
Application number: CN202111390565.1A
Authority: CN
Inventors: 吕国彬
Original assignee: Yongkang Zhentang Industry And Trade Co ltd
Current assignee: Yongkang Zhentang Industry And Trade Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-23
Publication date: 2022-03-01
Anticipated expiration: 2041-11-23
Also published as: CN114098394B; WO2023056988A1

Abstract

The invention belongs to the field of drinking water cups, and particularly relates to a tea leaf bin which comprises a bin body and a bin cover, wherein the bin body comprises a filter element and a filter cover, the filter cover comprises a first end surface and a first cylindrical surface, the tea leaf bin comprises a first flange, a filter element and a bin cover, wherein the filter element comprises a second end face and a second end face, the bin cover comprises a pressing plate and a sealing sleeve, the pressing plate extrudes the sealing sleeve under the action of an end cover to enable the sealing sleeve to be in airtight fit with the first flange of a filter cover of the bin body, the matched part of the sealing sleeve and the first end face of the filter cover generates elastic deformation, the sealing sleeve is elastically reset after the end cover is separated from the pressing plate to enable the sealing sleeve to be separated from the first flange, and a first through hole communicates a cavity of the filter element with the outside through a gap between the first flange and the sealing sleeve. The invention also discloses a cover containing the tea leaf bin and a water cup containing the cover.

Description

Tea leaf bin, cover and water cup

Technical Field

The invention belongs to the field of drinking cups of drinking machines, and particularly relates to a tea bin for a tea-water separation cup.

Background

In the field of drinking vessels, particularly cups for making tea, such as business thermos cups, the cup generally has a cup body, a filter cartridge housed inside the cup body, and a cup cover, the bottom surface and the periphery of the filter cartridge are provided with meshes for separating tea leaves from tea water when making tea. When tea is brewed, tea leaves are placed in the filter cylinder, boiled water is poured into the filter cylinder until the whole cup body is full of the tea leaves, the filter cylinder is lifted out of the cup body through a handle of the filter cylinder after the tea leaves are soaked for a proper time, tea water in the filter cylinder flows into the cup body through meshes arranged at the bottom and around the filter cylinder under the action of gravity, and the tea leaves are kept inside the filter cylinder. Because the filter cartridge and the cup cover are separated, after the filter cartridge is lifted out of the cup body, the filter cartridge needs to be lifted in the air or placed in a specific place, such as a cup mat or a tea tray, so that cross contamination is avoided, or residual tea water in the filter cartridge drops on the ground or a table top. When making tea, the filter cylinder is firstly screwed off from the bottom of the cup cover, a proper amount of tea leaves are filled into the filter cylinder, the filter cylinder is screwed on the bottom of the cup cover, a proper amount of boiled water is poured into the cup body, the cup cover is screwed on the cup body and then the cup is inverted, the cup cover faces downwards, the cup bottom faces upwards, the boiled water in the cup body enters the interior of the filter cylinder through meshes on the periphery and the bottom of the filter cylinder, and then the tea leaves are soaked, after the tea leaves are soaked for a proper time, the cup cover is unscrewed, the cup cover is inverted on a desktop or on the hand, the filter cylinder faces upwards, and the residual tea water in the filter cylinder is dripped into the interior of the cup cover along the wall of the filter cylinder.

Disclosure of Invention

It is an object of the present invention to provide a tea leaf bin for separating tea from water to overcome the above problems, and to separate tea from water by the combined action of the equilibrium air pressure and the surface tension of the liquid.

The invention provides a tea leaf bin, which comprises a bin body and a bin cover, wherein a second through hole is formed in the bottom of the bin body, the bin cover is in stage closed fit with the bin body, the bin body comprises a filter element and a filter cover detachably and hermetically connected with the filter element, a cavity formed by the filter element and the filter cover is used for containing tea leaves, the filter cover comprises a first end face provided with a first through hole, a first cylindrical surface extending perpendicular to the first end face and a first flange protruding outwards in the radial direction and perpendicular to the first cylindrical surface, the first cylindrical surface is positioned between the first flange and the first end face, the filter element comprises a second end face provided with a second through hole and a second cylindrical surface extending towards the filter cover and perpendicular to the second end face, the second cylindrical surface isolates gas inside and outside the filter element, the bin cover comprises a pressing plate and a sealing sleeve partially sleeved and hermetically with the pressing plate, and the pressing plate presses the sealing sleeve under the action of the end cover to enable the sealing sleeve to be in closed fit with the first flange of the filter cover of the bin body and to be elastically deformed with the first end face of the filter cover And after the end cover is separated from the pressure plate, the sealing sleeve is elastically reset to separate the sealing sleeve from the first flange, and the first through hole communicates the cavity of the filter element with the outside through a gap between the first flange and the sealing sleeve.

The present invention also provides a tea water separation cap to overcome the above problems, and to separate tea water by the combined action of the equilibrium gas pressure and the surface tension of the liquid.

The invention provides a cover, which comprises a base in threaded fit with the mouth of a water cup, a tea leaf bin for containing tea leaves and an end cover for opening or closing a water outlet, wherein the tea leaf bin comprises a bin body and a bin cover in staged closed fit with the bin body, the bin body comprises a filter element and a filter cover detachably and hermetically connected with the filter element, a cavity formed by the filter element and the filter cover is used for containing the tea leaves, the filter cover comprises a first end face provided with a first through hole, a first cylindrical surface extending perpendicular to the first end face and a first flange protruding outwards in the radial direction and perpendicular to the first cylindrical surface, the first cylindrical surface is positioned between the first flange and the first end face, the filter element comprises a second end face provided with a second through hole and a second cylindrical surface extending towards the filter cover and perpendicular to the second end face, the second cylindrical surface isolates the gas inside and the outside of the filter element, the bin cover comprises a pressure plate and a sealing sleeve for partially hermetically sleeving the pressure plate, the pressing plate extrudes the sealing sleeve under the action of the end cover to enable the sealing sleeve to be in airtight fit with a first flange of a filter cover of the bin body, the sealing sleeve is elastically deformed with a first end face fit part of the filter cover, the sealing sleeve is elastically reset after the end cover is separated from the pressing plate to enable the sealing sleeve to be separated from the first flange, and the first through hole is communicated with the cavity of the filter element with the outside through a gap between the first flange and the sealing sleeve.

The invention also aims to provide a tea-water separation cup to overcome the problems and separate tea and water through the combined action of balanced air pressure and liquid surface tension.

Therefore, the invention provides a water cup, which comprises a cup body, a cover in threaded fit with the cup body, and a sealing gasket positioned between the cover and the cup body, wherein the cover comprises a base in threaded fit with the mouth part of the water cup, a tea bin for containing tea leaves, and an end cover for opening or closing a water outlet, the tea bin comprises a bin body and a bin cover in staged closed fit with the bin body, the bin body comprises a filter element and a filter cover detachably and hermetically connected with the filter element, a cavity formed by the filter element and the filter cover is used for containing the tea leaves, the filter cover comprises 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 protruding outwards in a radial direction and perpendicular to the first cylindrical surface, the first cylindrical surface is positioned between the first flange and the first end surface, the filter element comprises a second end surface provided with a second through hole, and a second cylindrical surface extending towards the filter cover and perpendicular to the second end surface, the second column surface isolates gas inside and outside the filter element, the bin cover comprises a pressing plate and a sealing sleeve, the pressing plate is partially sealed and sleeved with the pressing plate, the pressing plate extrudes the sealing sleeve under the action of the end cover to enable the sealing sleeve to be in sealed fit with a first flange of a filter cover of the bin body, the sealing sleeve is elastically deformed with a first end face matching part of the filter cover, the sealing sleeve is elastically reset after the end cover is separated from the pressing plate to enable the sealing sleeve to be separated from the first flange, and the first through hole is communicated with the cavity of the filter element and the outside through a gap between the first flange and the sealing sleeve.

Advantageous effects

1. Because the stage airtight cooperation in storehouse body and cang gai, the perisporium in tealeaves storehouse does not have the trompil, only top and bottom trompil, consequently, when the airtight storehouse body in cang gai, the top in tealeaves storehouse is in airtight state, and the bottom in tealeaves storehouse is through second through-hole and external UNICOM. When the bin cover is separated from the bin body, the top of the tea leaf bin is in a non-closed state, the top of the tea leaf bin is communicated with the outside, and the bottom of the tea leaf bin is communicated with the outside through the second through hole. When the water cup is inverted, the cup cover faces downwards, the cup bottom faces upwards, the tea leaf bin is wrapped by boiled water in the cup body, an air layer and a boiled water layer are formed in the cup body from top to bottom, the boiled water layer wraps the tea leaf bin, the tea leaf bin is located inside the boiled water layer, air in the tea leaf bin can only enter the boiled water through the second through hole and finally converges with the air layer, air pressure in the tea leaf bin is reduced after the air is evacuated from the tea leaf bin, air pressure of the air layer is increased after the air converges into the air layer, boiled water above the tea leaf bin enters the tea leaf bin through the second through hole under the combined action of gravity and the air pressure of the air layer until the tea leaf bin is filled with the boiled water. After the tea cabin is filled with boiled water, the water cup is placed right, the cup cover faces upwards, the cup bottom faces downwards, no air or a small amount of air exists in the tea cabin filled with the boiled water, namely, the phenomenon that the air pressure in the tea cabin is far smaller than the air pressure in the cup body is formed, and a standard atmospheric pressure can support a water column with the height of about 10 meters, so that the boiled water in the tea cabin cannot flow out of the tea cabin through the second through hole under the condition that the surface tension of the water on the second through hole at the bottom of the tea cabin is not damaged, namely, the boiled water in the tea cabin is limited in the tea cabin by the air pressure outside the tea cabin, in order to keep the surface tension of the water not damaged by the second through hole, the aperture of the second through hole is suitable within 8 millimeters, and because the filter element is used for filtering tea water and tea leaves in the application, the aperture of the second through hole is preferably within 1 millimeter, so that the surface tension of the boiled water near the second through hole is not damaged, the boiled water in the tea bin is kept in the tea bin and used for soaking the tea. Because the cup body and the filter element are made of transparent glass, the tea cabin with the filter holes at the bottom can not only leak water but also suspend in the air to hold boiled water and soak tea leaves, and the phenomenon of the tea cabin is intuitively displayed in front of people. After the cover body is opened, tea water in the transparent tea bin is discharged out of the tea bin through the through hole at the bottom and enters the cup body at the moment until the tea water in the tea bin is completely discharged. The cup is just put again after the drinking cup is invertd once more to closed lid, and the phenomenon of the unsettled pocket in transparent tealeaves storehouse living tea appears once more, opens the lid after, and tea is discharged in the twinkling of an eye once more, and such phenomenon can manifold cycles, improves the interactive nature between people and the drinking cup.

2. The end cover applies pressure to the pressure plate to enable the pressure plate to extrude the sealing sleeve, the fourth end face of the sealing sleeve is tightly attached to the first flange of the filter cover, and meanwhile, the fourth end face of the sealing sleeve covers the third through hole in the first flange, so that the bin cover and the bin body form effective closed connection.

3. When the end cover extrudes the bin cover, the fifth end surface of the sealing sleeve of the bin cover is abutted against the first end surface of the filter cover, and the fourth cylindrical surface of the sealing sleeve generates elastic deformation and stores elastic potential energy. After the end cover withdraws from the bin cover, the fourth cylindrical surface which is elastically deformed resets under the action of elastic force and enables the fourth end surface of the sealing sleeve to separate from the first flange of the filter cover, a gap is formed between the first flange and the fourth end surface, meanwhile, the fourth end surface does not cover the third through hole on the first flange any more, air in the cup body enters the gap formed by the first flange and the fourth end surface through the third through hole, further, the top of the bin body is communicated with the air at the bottom, the air pressure between the top and the bottom of the bin body is balanced, the surface tension of water on the second through hole is not enough to offset the gravity of tea, the well-brewed tea in the bin body is discharged through the second through hole at the bottom of the bin body under the action of gravity, and the well-brewed tea enters the cup body from the tea bin.

4. The lid upset is in order to open the outlet, slope drinking cup, and the tea that steeps in the cup enters into the cavity of constituteing by the first flange of straining the lid and pedestal through the third through-hole in, and the rethread delivery port flows out.

Drawings

The invention and its advantages will be better understood in the following description of embodiments given as non-limiting examples with reference to the accompanying drawings, in which:

FIG. 1 is a perspective cross-sectional view of a water cup disclosed in accordance with an exemplary embodiment of the present application, with the cover in a closed position;

FIG. 2 is a perspective cross-sectional view of a cup disclosed in accordance with an exemplary embodiment of the present application, with the cover in an open position;

FIG. 3 is an exploded perspective view of the cup of FIG. 1;

FIG. 4 is an exploded perspective view of the cover of FIG. 3;

fig. 5 is a perspective view of the tea caddy of fig. 4, with the caddy cover in an open position;

FIG. 6 is a perspective view of the lid of FIG. 5;

fig. 7 is a perspective view of the tea caddy of fig. 4 with the lid in a closed position

FIG. 8 is an exploded perspective view of the lid of FIG. 6;

fig. 9 is a perspective view of the cartridge body of fig. 5;

fig. 10 is a perspective view of the cartridge of fig. 9;

fig. 11 is an exploded perspective view of the cartridge body of fig. 9;

fig. 12 is a partial perspective cross-sectional view of the second coupling portion of the cover and the first coupling portion of the housing of fig. 4, with the cover in a locked state;

FIG. 13 is an exploded perspective view of the end cap of FIG. 4;

FIG. 14 is a perspective view of the base of FIG. 4;

FIG. 15 is a perspective cross-sectional view of the end cap of FIG. 4;

FIG. 16 is a partial cross-sectional view of the third boss of the cover of FIG. 3 engaging the ramp of the seat;

FIG. 17 is a perspective view of the seal of FIG. 13;

FIG. 18 is a partial cross-sectional view of the cover of FIG. 3 with the third boss facing the first recess of the housing;

fig. 19 is a partial cross-sectional view of the cover of fig. 3 with the third boss inserted into the first recess of the housing;

fig. 20 is a perspective view of the torsion spring of fig. 13;

fig. 21 is a partial perspective cross-sectional view of the second coupling portion of the cover and the first coupling portion of the base of fig. 15 mated together with the cover in an unlocked state;

fig. 22 is a partial perspective cross-sectional view of the second coupling portion of the cover and the first coupling portion of the base of fig. 15, with the cover in an open position;

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

FIG. 24 is a perspective view from another perspective of the filter cover of FIG. 23;

FIG. 25 is a perspective view of the cover of FIG. 13;

FIG. 26 is a perspective view of the cover of FIG. 25 from another perspective;

FIG. 27 is a perspective view of the cover of FIG. 25 from another perspective;

fig. 28 is a perspective view of the housing of fig. 13;

fig. 29 is a perspective view of the base of fig. 28 from another perspective;

FIG. 30 is a schematic view after a suitable amount of boiling water has been placed in the cup, with the lid not yet attached to the cup and the cup facing up;

FIG. 31 is a schematic view of the lid coupled to the cup body in accordance with FIG. 30, with the cup in place;

FIG. 32 is a schematic view of the cup in FIG. 31 after being inverted;

FIG. 33 is a schematic view of a quantity of boiled water after entering the tea caddy based on FIG. 32;

FIG. 34 is a schematic view of the cup in FIG. 33 after being positioned;

FIG. 35 is a schematic view of FIG. 34 with the cover opened;

FIG. 36 is a cross-sectional perspective view of a mating lid and filter lid of another embodiment of the disclosed cartridge with the lid closing the filter lid;

FIG. 37 is a cross-sectional perspective view of a mating of a lid and a lid with the lid removed from the lid in accordance with another embodiment of the disclosure;

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

Description of the reference numerals

1. A base; a first seal ring; 3, a second sealing ring;

4. an end cap; 5, a tea leaf bin; 6, sealing gaskets;

7. a cup body; a lid; a second groove;

12. a first groove; a second flange; a fourth boss;

15. a fifth cylindrical surface; a third thread; a torsion spring;

42. a rotating shaft; 43. plastic parts; a cover plate;

45. a seal member; a second magnet; a lid;

48. a base body; a first magnet; a bin cover;

52. a bin body; a first end portion 421; a second end portion;

423. a shaft portion; 451, a first portion; a second portion 452;

471. an eighth through hole; 472. a third boss; 473. a second coupling;

474. a sixth through hole; 475. a second chamber; a slotted hole 476;

477. a fourth groove; 478. a second blind hole; 479. a second dimple;

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

482. a first locking section; 483. a first recess; 484. a ramp;

485. a first coupling portion; 486, a sixth groove; 487. seventh via;

488. a first cavity; 489. third flange; 480, a first blind hole;

4810. a fifth through hole; 4811. sixth cylinder; 511, pressing a plate;

512. sealing sleeves; 521, a filter cover; a filter element 522;

5211. a first end face; 5212. a first via; 5213. a first cylindrical surface;

5214. a first thread; 5215. a first flange; 5216. a third via;

5217. a fifth groove; 5221. a second end face; 5222. a second via;

5223. a second column surface; 5224. a second thread; 5111. a third end face;

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

5122. a fourth cylindrical surface; 5123. fifth end face; 5124. fourth via.

Detailed Description

In this application "upright" is to be understood as placing the top of the article towards the sky and the bottom of the article towards the ground. "inverted" is understood to mean that the top of the article is placed towards the ground and the bottom of the article is placed towards the sky. In the present application, the term "top" is to be understood as the end closer to the "lid" and the term "bottom" is to be understood as the end further away from the "lid".

Referring to fig. 1 and 3, the present embodiment shows a cup, which includes a cup body 7, a lid 8 and a gasket 6, wherein the mouth of the cup body 7 is provided with a screw thread, the lid 8 is detachably coupled with the screw thread, and the gasket 6 is disposed between the lid 8 and the cup body 7 to realize the airtight coupling of the lid 8 and the cup body 7.

Referring to fig. 4, the lid 8 comprises a base 1, a tea leaf bin 5, an end cap 4, the base 1 is used for matching with the thread of the mouth of the water cup to fasten the lid 8 to the water cup, the tea leaf bin 5 is used for containing a proper amount of tea leaves to soak the tea leaves and separate the tea leaves from the tea water when appropriate, the end cap 4 is used for opening or closing the water outlet when appropriate, and the end cap 4 is closed when the tea leaves need to be soaked; when drinking tea is required, the end cap 4 is opened. The top in tealeaves storehouse 5 is pegged graft in base 1, and end cover 4 is pegged graft in base 1, the top in tealeaves storehouse 5 of base 1 and 4 centre gripping of end cover, in order to avoid the water in the drinking cup to spill the drinking cup through the clearance between base 1, tealeaves storehouse 5 and the 4 three of end cover, the position that 5 tops in tealeaves storehouse and base 1 were pegged graft sets up first sealing washer 2, and the position that end cover 4 and base 1 were pegged graft sets up second sealing washer 3.

Referring to fig. 5 and 7, the tea leaf bin 5 includes a bin body 52 and a bin cover 51, and when the tea leaf bin 5 is used for soaking tea leaves, the bin cover 51 is hermetically matched with the bin body 52, as shown in fig. 7; when the tea leaf bin 5 filters tea water, the bin cover 51 is separated from the bin body 52, a gap is formed between the bin cover 51 and the top of the bin body 52, and air outside the bin body 52 enters the bin body 52 through the gap, as shown in fig. 5. The steeping function and the filtering function of the tea leaf bin 5 are realized through the staged sealing matching of the bin body 52 and the bin cover 51.

Referring to fig. 9 and 11, storehouse body 52 includes filter core 522 and strains lid 521, and filter core 522 and strain lid 521 and realize dismantling airtight hookup through screw-thread fit, strain lid 521 and connect in the top of filter core 522 soon, and the cavity that filter core 522 and strain lid 521 are constituteed is used for holding tealeaves, and detachable threaded connection can conveniently place tealeaves and clear up the tealeaves residue, and airtight hookup can realize storehouse body 52 top and outside air isolation.

Referring to fig. 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, the first cylindrical surface 5213 extends perpendicularly to the first end surface 5211, 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, the first flange 5215 is provided with a plurality of third through holes 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 of a thin-wall structure.

Referring to fig. 10, the filter element 522 includes a second end surface 5221 and a second column surface 5223, the second column 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, the second column surface 5223 isolates gas inside and outside the filter element 522, the end portion of the second column surface 5223 away from the second end surface 5221 is provided with a second thread 5224, the second thread 5224 and the second column surface 5223 extend coaxially, the second thread 5224 is matched with the first thread 5214 of the filter cover 521 to realize threaded coupling of the filter element 522 and the filter cover 521, and the second column surface 5223 is a thin-wall structure.

Referring to fig. 6 and 8, the pressure plate 511 includes a third end face 5111, a third cylindrical face 5112, and a first boss 5113, wherein the third cylindrical face 5112 is perpendicular to the third end face 5111, the first boss 5113 is perpendicular to the third end face 5111 and extends away from the third cylindrical face 5112, and the third cylindrical face 5112 is a thin-walled structure. The cover 51 comprises a pressure plate 511 and a sealing sleeve 512, and the sealing sleeve 512 is partially hermetically sleeved on the pressure plate 511. The sealing sleeve 512 is made of an elastic material, the sealing sleeve 512 includes a fourth end face 5121, a fourth cylindrical face 5122, a fifth end face 5123 and a fourth through hole 5124, the fourth cylindrical face 5122 is perpendicular to the fourth end face 5121, the fifth end face 5123 is perpendicular to the fourth cylindrical face 5122, the fourth through hole 5124 penetrates through the fifth end face 5123, the fourth cylindrical face 5122 is located between the fourth end face 5121 and the fifth end face 5123, and the fourth cylindrical face 5122 is of a thin-wall structure. The pressure plate 511 and the sealing sleeve 512 are hermetically sleeved by interference fit of the third cylindrical surface 5112 and the fourth cylindrical surface 5122, the outer surface of the third cylindrical surface 5112 is matched with the inner surface of the fourth cylindrical surface 5122, and the third end surface 5111 is abutted to the fourth end surface 5121.

Referring to fig. 1, the pressure plate 511 presses the sealing sleeve 512 under the action of the end cap 4, so that the fourth end face 5121 of the sealing sleeve 512 abuts against the first flange 5215 of the filter cover 521, the fifth end face 5123 of the sealing sleeve 512 abuts against the first end face 5211 of the filter cover 521, the fourth end face 5121 covers the third through hole 5216 of the first flange 5215, the fourth cylindrical face 5122 of the sealing sleeve 512 elastically deforms, and the sealing sleeve 512 and the first flange 5215 of the filter cover 521 form a sealing fit.

Referring to fig. 2, the sealing sleeve 512 is elastically restored after the end cap 4 is separated from the pressure plate 511, so that the fourth end face 5121 of the sealing sleeve 512 is separated from the first flange 5215 of the filter cover 521, and the first through hole 5212 communicates the cavity of the filter element 522 with the outside through a gap between the first flange 5215 and the sealing sleeve 512.

Referring to fig. 13 and 15, the end cap 4 includes a base 48, a cover 47 and a rotating shaft 42, the end cap 4 is inserted into the base 1, the cover 47 is rotatably coupled to the base 48 through the rotating shaft 42, so that the cover 47 can rotate relative to the base 48 around the rotating shaft 42, and the cover 47 is opened and closed. The holder body 48 includes a fifth through hole 4810, as shown in fig. 28 and 29, the fifth through hole 4810 is adapted to be sleeved with the first boss 5113 of the pressure plate 511, and 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 2. The cover 47 includes a second boss 4710, the second boss 4710 protruding the cover 47, as shown in fig. 26. The second projection 4710 is engaged with the first projection 5113 of the pressure plate 511 in a stepwise manner, when the lid body 47 is closed, the second projection 4710 abuts against the first projection 5113, and when the lid body 47 is opened, the second projection 4710 releases the first projection 5113, and the first projection 5113 axially slides in the fifth through hole 4810.

When the cover body 47 is closed, the second boss 4710 of the cover body 47 is inserted into the fifth through hole 4810 of the base body 48, and presses the first boss 5113 in the fifth through hole 4810, the first boss 5113 drives the pressing plate 511 to press the sealing sleeve 512, the fifth end face 5123 of the sealing sleeve 512 abuts against the first end face 5211 of the filter cover 521, the fourth cylindrical face 5122 of the sealing sleeve 512 is elastically deformed and stores elastic potential energy, the fourth end face 5121 of the sealing sleeve 512 is tightly attached to the first flange 5215 of the filter cover 521, and the fourth end face 5121 of the sealing sleeve 512 covers the third through hole 5216 on the first flange 5215, so that the bin cover 51 and the bin body 52 form effective sealing connection. Since the circumferential wall of the tea leaf compartment 5 has no opening, only the top and the bottom are opened, the top of the tea leaf compartment 5 is in a closed state, and the bottom of the tea leaf compartment 5 is communicated with the outside through the second through hole 5222.

30-34 show the process of tea-water separation in the cup disclosed in this embodiment, the shaded area in the figure represents the distribution position of boiled water, the total amount of water in each figure is kept consistent, and the positions of liquid levels in each figure are drawn in equal proportion according to actual conditions. Referring to fig. 30, after the lid 8 is opened, a proper amount of boiled water is filled in the cup body 7, and then the lid 8 is screwed on the cup body 7, as shown in fig. 31, the liquid level is lower than the bottom of the tea leaf bin 5. The cup is inverted, the cup cover faces downwards, the cup bottom faces upwards, the tea leaf bin 5 is wrapped by boiled water in the cup body 7, an air layer and a boiled water layer are formed in the cup body 7 from top to bottom, the boiled water layer wraps the tea leaf bin 5, and the tea leaf bin 5 is located inside the boiled water layer as shown in fig. 32. The air in the tea leaf bin 5 can only enter the boiled water through the second through hole 5222 and finally joins with the air layer, the air pressure in the tea leaf bin 5 is reduced after the air is evacuated from the tea leaf bin 5, the air pressure in the air layer is increased after the air joins the air layer, the boiled water above the tea leaf bin 5 enters the tea leaf bin 5 through the second through hole 5222 under the combined action of gravity and the air pressure in the air layer until the tea leaf bin 5 is filled with the boiled water, as shown in fig. 33. After the tea leaf bin 5 is filled with boiled water, the water cup is placed right, the cup cover faces upwards, the cup bottom faces downwards, and no air or only a small amount of air exists in the tea leaf bin 5 filled with the boiled water, so that the phenomenon that the air pressure in the tea leaf bin 5 is far smaller than the air pressure in the cup body 7 is formed, and a water column with the height of about 10 meters can be supported by one standard atmosphere, therefore, the surface tension of the water in the second through hole 5222 at the bottom of the tea leaf bin 5 is not damaged, the boiled water in the tea leaf bin 5 cannot flow out of the tea leaf bin 5 through the second through hole 5222, namely the boiled water in the tea leaf bin 5 is limited inside the tea leaf bin 5 by the air pressure outside the tea leaf bin 5, as shown in fig. 34. In order to keep the second through holes 5222 from damaging the surface tension of water, the diameter of the second through holes 5222 is preferably within 8 mm, and since the filter element 522 is used for filtering tea water and tea leaves in this application, the diameter of the second through holes 5222 is preferably within 1 mm, so that the surface tension of the boiled water near the second through holes 5222 is not damaged, and the boiled water in the tea leaf compartment 5 is kept in the tea leaf compartment 5 and soaks the tea leaves.

When the cover body 47 is opened, the second boss 4710 of the cover body 47 is removed from the fifth through hole 4810 of the seat body 48, the second boss 4710 releases the first boss 5113 in the fifth through hole 4810, the elastically deformed fourth cylindrical surface 5122 of the sealing sleeve 512 is reset under the action of elastic force, so that the fourth end face 5121 of the sealing sleeve 512 is separated from the first flange 5215 of the filter cover 521, a gap is formed between the first flange 5215 and the fourth end face 5121, meanwhile, the fourth end face 5121 no longer covers the third through hole 5216 on the first flange 5215, air in the cup body 7 enters the gap formed by the first flange 5215 and the fourth end face 5121 through the third through hole 5216, so that the top and the bottom of the cartridge body 52 are communicated with air, air pressure between the top and the bottom of the cartridge body 52 is equalized, surface tension of water in the second through hole 5222 is insufficient to counteract gravity of tea water, and tea water in the cartridge body 52 is discharged through the second through hole 5222 at the bottom of the cartridge body 52 under the action of gravity, the brewed tea water enters the cup body 7 from the tea leaf bin 5 as shown in fig. 35.

Referring to fig. 14, the base 1 includes a fifth cylindrical surface 15, a second flange 13, a first groove 12, a third boss 472, a second groove 11, and a third thread 16, the second flange 13 is disposed radially inward on the fifth cylindrical surface 15, the first groove 12 is disposed radially inward on the fifth cylindrical surface 15, the third boss 472 is disposed radially inward on the fifth cylindrical surface 15, the second groove 11 is disposed on an 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 for partially wrapping the base body 48, the second flange 13 is used for matching with the first flange 5215 of the filter cover 521, the first sealing ring 2 is arranged between the first flange 5215 and the second flange 13 to realize the airtight connection between the filter cover 521 and the base 1, the first groove 12 is used for clamping the base body 48, the third boss 472 is used for limiting the rotation of the base body 48, the second groove 11 is used for receiving the second sealing ring 3 to realize the airtight connection between the base 1 and the base body 48, and the third thread 16 is matched with the thread of the mouth of the water cup.

Referring to fig. 28 and 29, the seat body 48 further includes a sixth cylindrical surface 4811, a third flange 489 and a third groove 481, the third flange 489 is disposed radially outward on the sixth cylindrical surface 4811, the sixth cylindrical surface 4811 is configured to cooperate with the fifth cylindrical surface 15 of the base 1, the third flange 489 is configured to be inserted into the first groove 12 of the base 1 to limit the axial movement between the base 1 and the seat body 48, and the third groove 481 cooperates with the third projection 472 of the base 1 to limit the rotation between the base 1 and the seat body 48. The base 1 and the seat body 48 are axially clamped through the matching of the third flange 489 and the first groove 12, and are relatively statically connected through the matching of the third groove 481 and the third flange 489.

Referring to fig. 15, the holder body 48 is provided with a first locking portion 482 and a first coupling portion 485 coupled with the cover body 47 at an opposite side of the first locking portion 482, the cover body 47 is provided with a second locking portion stage-wise fitted with the first locking portion 482 and a second coupling portion 473 rotatably coupled with the first coupling portion 485 at an opposite side of the second locking portion, and the rotation shaft 42 penetrates the first coupling portion 485 and the second coupling portion 473. When the cover 47 is in the closed state, the locking of the closed state of the cover 47 is achieved by 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 portion 482 and the second locking portion are disengaged in the non-engaged state, and the stepwise engagement of the first locking portion 482 and the second locking portion is achieved by the rotational coupling of the first coupling portion 485 and the second coupling portion 473. The second coupling portion 473 of the cover 47 is provided with an oblong hole 476, the dimension of the oblong hole 476 in the length direction is larger than the outer diameter of the rotating shaft 42, so that the cover 47 can move along the length direction of the oblong hole 476, the axial direction of the oblong hole 476 is arranged along the axial direction of the rotating shaft 42, and the first coupling portion 485 of the seat body 48 is fixedly coupled with the rotating shaft 42 in an interference fit manner, so that under the matching of the rotating shaft 42 and the oblong hole 476, the cover 47 is pushed back and forth along the length direction of the oblong hole 476, so that the cover 47 has a certain displacement relative to the seat body 48, that is, the second coupling portion 473 of the cover 47 and the first coupling portion 485 of the seat body 48 form a rotational coupling and a moving coupling. The second locking portion of the cover body 47 is provided with a third boss 472 which is engaged with the first locking portion 482 of the seat body 48, the first locking portion 482 of the seat body 48 is provided with a slope surface 484 which is engaged with the third boss 472 of the cover body 47, the slope surface 484 is provided with a first recess 483, and the third boss 472 slides along the slope surface 484 and enters the first recess 483. When the cover 47 and the seat 48 slide relatively, the third bosses 472 either disengage from the first recesses 483 or enter the first recesses 483, i.e., the first recesses 483 receive the third bosses 472 periodically. During closure of cover 47, third boss 472 contacts ramp 484 and slides along ramp 484 toward first dimple 483; during the opening process of the cover 47, the third protrusions 472 disengage from the first recesses 483 and do not contact the inclined surface 484, i.e., the protrusions form a step-wise sliding fit with the inclined surface 484.

Referring to fig. 13, the cover 47 is further provided with a torsion spring 41, and the rotation shaft 42 axially penetrates the torsion spring 41. The torsion spring 41 includes a first end 421, a second end 422, and a shaft portion 423 between the first end 421 and the second end 422, the first end 421 and the second end 422 being perpendicular to the shaft portion 423, as shown in fig. 20.

Referring to fig. 28, the first coupling portion 485 of the seat body 48 is partially provided with a first cavity 488 receiving the torsion spring 41, the first cavity 488 has a shape adapted to the shapes of the first end 421 and the shaft portion 423 of the torsion spring 41, the first cavity 488 is further 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, the first coupling portion 485 is further 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 so as to realize the interference fit between the rotating shaft 42 and the seventh through hole 487, and further realize the fixed coupling between the rotating shaft 42 and the seat body 48.

Referring to fig. 27, the second coupling part 473 of the cover 47 is provided with a second cavity 475 partially receiving the torsion spring 41, the second cavity 475 has a shape corresponding to the outer shapes of the second end 422 and the shaft part 423 of the torsion spring 41, the second cavity 475 is further provided with a fourth groove 477, the second cavity 475 receives the shaft part 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 at an end of the second cavity 475 and penetrates through the second coupling part 473.

Because the first end 421 of the torsion spring 41 is inserted into the sixth groove 486 of the first cavity 488 of the seat 48, the second end 422 of the torsion spring 41 is inserted into the fourth groove 477 of the second cavity 475 of the cover 47, and the cover 47 is slidably engaged with the rotating shaft 42 through the oblong hole 476 and moves in the radial direction relative to the rotating shaft 42, during the rotation process of the cover 47 relative to the seat 48, the first end 421 of the torsion spring 41 is fixed relative to the seat 48, and the second end 422 of the torsion spring 41 stores energy under the driving of the cover 47, or the second end 422 of the torsion spring 41 drives the cover 47 to rotate, thereby releasing the elastic potential energy of the torsion spring 41.

In order to prevent the torsion spring 41 from rotating the cover 47 too fast, a buffer structure is provided at 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 47 further includes a sixth through hole 474, the sixth through hole 474 is communicated with the oblong hole 476, the sixth through hole 474 is used for receiving the plastic piece 43, the sixth through hole 474 is in interference fit with the plastic piece 43, the plastic piece 43 abuts against the rotating shaft 42 located in the oblong hole 476 and is in sliding fit with the cylindrical surface of the rotating shaft 42, the plastic piece 43 is in a cylindrical structure, the end of the plastic piece 43 that is fitted with the rotating shaft 42 is provided with a tapered surface, and the tapered surface contacts with the cylindrical surface of the rotating shaft 42 to increase the contact area and further increase the resistance when the cover 47 rotates, as shown in fig. 12, 21, and 22. Because the second coupling part 473 of the cover body 47 is embedded into the plastic part 43, and the plastic part 43 is in sliding fit with the rotating shaft 42, when the cover body 47 drives the plastic part 43 to rotate, the plastic part 43 is attached to the rotating shaft 42 to slide to play a role in buffering rotation, so that the danger of scalding due to the fact that hot water on the cover body 47 is thrown out of the cover body when the cover body rotates fast is avoided.

Since the first coupling portion 485 of the holder body 48 is fixedly coupled to the rotation shaft 42 and the second coupling portion 473 of the cover 47 is coupled to the rotation shaft 42 in a rotating and moving manner, the oblong hole 476 of the cover 47 can move in a radial direction relative to the rotation shaft 42 or rotate around the rotation shaft 42 at the same time. When the cup 7 is held by one hand, the thumb pushes the second coupling portion 473 of the cover 47 to slide the cover 47 relative to the seat 48, and the third boss 472 of the second locking portion 472 of the cover 47 is disengaged from the first recess 483 of the first locking portion 482 of the seat 48, so as to unlock the cover 47 and the seat 48. Due to the action of the torsion spring 41, when the third boss 472 of the second locking portion of the cover body 47 is disengaged from the first recess 483 of the first locking portion 482 of the seat body 48, the cover body 47 rotates about the rotating shaft 42 to realize automatic opening of the cover body 47, as shown in fig. 2 and 22.

Referring to fig. 29, the base 48 is provided with a first blind hole 480, the first blind hole 480 is disposed from a side of the base 48 facing the cup to a side of the cover 47, the cover 47 is provided with a second blind hole 478, and the second blind hole 478 is disposed from a side far from the base 48 to a side close to the base 48, as shown in fig. 25. The first blind hole 480 accommodates the first magnet 49, and the first magnet 49 is in interference fit with the first blind hole 480. The second blind hole 478 accommodates the second magnet 46, the second magnet 46 and the second blind hole 478 are in interference fit, when the cover 47 is closed, the magnetic poles of the first magnet 49 and the second magnet 46 are opposite and have opposite polarities, when the third projection 472 of the cover 47 is not inserted into the first recess 483 of the seat 48, the first magnet 49 and the second magnet 46 are not coaxial, and when the third projection 472 of the cover 47 is completely inserted into the first recess 483 of the seat 48, 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, the third projection 472 of the second locking portion of the cover 47 contacts the inclined surface 484 of the first locking portion 482 of the holder body 48 and slides along the inclined surface 484 as shown in fig. 16, when the cover 47 is pressed down. When the cover 47 abuts against the seat 48, the third projection 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 magnetism, the first magnet 49 and the second magnet 46 are partially displaced, and the second magnet 46 drives the cover 47 to slide under the action of the magnetic force until the second magnet 46 is coaxial with the first magnet 49, as shown in fig. 1. During the movement of the cover 47, the third bosses 472 of the second locking portion of the cover 47 are inserted into the first recesses 483 of the inclined surfaces 484 of the first locking portion 482 of the seat body 48, and at this time, the cover 47 is in a locked state, as shown in fig. 15 and 19.

Referring to fig. 2, the first locking portion 482 of the seat 48 is provided with a water outlet for discharging liquid in the cup when the cover 47 is in an open state. Referring to fig. 19, the seal 45 and the cover 44 are provided in the second locking portion of the lid 47, the seal 45 includes a first portion 451 and a second portion 452, the first portion 451 penetrates the second locking portion and abuts the water outlet when the lid 8 is closed, the second portion 452 is provided between the lid 47 and the cover 44, and the lid 47 and the cover 44 sandwich the second portion 452. Referring to fig. 17, the first portion 451 protrudes from the second portion 452 in the thickness direction, the edge of the second portion 452 protrudes from the first portion 451, the cover 47 and the cover 44 clamp the edge of the second portion 452 protruding from the first portion 451, the cover 44 is fixedly coupled to the cover 47, as an exemplary embodiment, the cover 44 may be fixedly coupled to the cover 47 by ultrasonic welding, in order to make the cover 44 flush with the upper surface of the cover 47, a second concave recess 479 is provided on the side of the cover 47 receiving the cover 44, the second concave recess 479 has a shape corresponding to the outer shape of the cover 44, and the depth of the second concave recess 479 is slightly greater than the thickness of the cover 44. Cover plate 44 is further provided with a third pocket 470 at the side of second pocket 479 that receives seal 45, third pocket 470 having a shape that conforms to the profile of second portion 452 of seal 45, and third pocket 470 having a depth that is slightly greater than the thickness of the edge of second portion 452. The cover plate 44 is further provided with an eighth through hole 471 at a side of the third recess 470 receiving the sealing member 45, the eighth through hole 471 having a shape corresponding to the outer shape of the first portion 451 of the first sealing member 45, the eighth through hole 471 receiving the first portion 451 of the sealing member 45.

Referring to fig. 1 and 23, the cover 47 has an open state in which the liquid in the cup can be discharged through the water outlet and a closed state in which the liquid in the cup is sealed in the cup when the cover 47 is in the open state.

Referring to fig. 15, the end cap 4 includes a cover plate 44, a sealing member 45, a second magnet 46, a cover 47, a torsion spring 41, a rotating shaft 42, a plastic member 43, a base 48 and a first magnet 49, the cover plate 44 and the base 48 clamp the sealing member 45 and the second magnet 46, the rotating shaft 42 penetrates through the torsion spring 41 and is fastened to the base 48, the torsion spring 41 and the rotating shaft 42 are accommodated in a cavity formed by the cover 47 and the base 48, two ends of the torsion spring 41 are respectively embedded into the base 48 and the cover 47 to realize torsion transmission between the cover 47 and the base 48, and the plastic member 43 is embedded into the base 48 and is in sliding fit with the rotating shaft 42 to buffer the rotating speed of the cover 47.

The opening process of the cover 47 is as follows, the tiger mouth of the palm catches the cover 8, the index finger is located at the joint of the cover 47 and the seat body 48, the thumb is located at the locking part of the seat body 48 and the cover 47, the index finger pushes the second joint of the cover 47 to move the cover 47 towards the thumb, and the third boss 472 of the second locking part of the cover 47 is disengaged from the first recess 483 of the first locking part 482 of the seat body 48, as shown in fig. 18. The cover 47 is rotated around the rotation shaft 42 by the torsion spring 41, and the cover 47 is opened, as shown in fig. 2. Because the cover 47 drives the plastic part 43 to rotate 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 and avoiding the liquid on the cover 47 from being thrown out. After the cover body 47 is opened, the bin cover 51 of the tea leaf bin 5 is separated from the bin body 52, the top of the tea leaf bin 5 is in an unsealed state, the top of the tea leaf bin 5 is communicated with the outside, the cup is tilted, and tea water brewed in the cup body 7 enters a cavity formed by the first flange 5215 of the filter cover 521 and the base body 48 through the third through hole 5216 of the filter cover 521 and then flows out through a water outlet, as shown in fig. 2.

When the cover 47 is in an open state, in order to avoid people from seeing the third through hole 5216 of the filter cover 521 from the water outlet, the plurality of third through holes 5216 on the first flange 5215 of the filter cover 521 are distributed outside the projection area of the water outlet on the first flange 5215, the first flange 5215 is further 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 is clamped into the fifth groove 5217 to limit 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 projection area of the water outlet on the first flange 5215.

The closing process of the cover 47 is as follows, the tiger mouth of the palm catches the cover 8, the index finger is located at the joint of the cover 47 and the seat body 48, the thumb is located at the locking part of the seat body 48 and the cover 47, the index finger is lifted to drive the cover 47 to rotate towards the direction of the thumb, when the third boss 472 of the second locking part of the cover 47 contacts with the inclined surface 484 of the first locking part 482 of the seat body 48, the index finger buckles the cover 47, the third boss 472 slides along the inclined surface 484, as shown in fig. 16, when the sealing member 45 of the cover 47 abuts against the water outlet of the seat body 48, the third boss 472 faces the first recess 483, the first magnet 49 of the seat body 48 is opposite to the second magnet 46 of the cover 47, the magnetic poles are 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 boss of the cover 47 is inserted into the first recess 483 of the seat body 48, to realize the locking of the closed state of the cover 47, as shown in fig. 19.

Second embodiment

Referring to fig. 36, 37 and 38, the matching structure of the bin cover 51 and the filter cover 521 disclosed in this embodiment is improved on the basis of the first embodiment, the sealing sleeve 512 in the first embodiment is replaced by a sealing ring, the sealing ring is fixedly coupled with the third end face 5111 of the pressure plate 511, the sealing ring is fixedly coupled with the pressure plate 511 by ultrasonic welding, and a cylindrical helical compression spring is arranged between the pressure plate 511 and the first end face 5211 of the filter cover 521. When the cover 47 presses the pressing plate 511, the pressing plate 511 drives the sealing ring to press the first flange 5215 of the filter cover 521 to realize the sealing connection between the bin cover 51 and the filter cover 521, and the cylindrical helical compression spring is compressed by the pressing plate 511 to store elastic potential energy, as shown in fig. 36. When the cover 47 releases the pressing plate 511, the cylindrical helical compression spring releases the elastic potential energy, and the pressing plate 511 drives the sealing ring to disengage from the first flange 5215 of the filter cover 521 under the action of the elastic force, as shown in fig. 37.

Claims

1. A tea leaf bin comprises a bin body (52) and a bin cover (51), wherein a second through hole (5222) is formed in the bottom of the bin body (52), the tea leaf bin is characterized in that the bin cover (51) is in sealing fit with the bin body (52) in a staged mode, the bin body (52) comprises a filter element (522) and a filter cover (521) detachably connected with the filter element (522) in a sealing mode, a cavity formed by the filter element (522) and the filter cover (521) is used for containing tea leaves, 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) perpendicular to the first cylindrical surface (5213) and protruding outwards in the radial direction, the first cylindrical surface (5213) is located between the first flange (5215) and the first end face (5211), the filter element (522) comprises a second end face (5221) provided with a second through hole (5222) and a second post (5223) perpendicular to the second end face (5221) and extending towards the filter cover (521), the second column surface (5223) isolates gas inside and outside the filter element (522), the bin cover (51) comprises a pressure plate (511) and a sealing sleeve (512) partially and hermetically sleeved with the pressure plate (511), the pressure plate (511) presses the sealing sleeve (512) under the action of the end cover (4) to enable the sealing sleeve (512) to be hermetically matched with a first flange (5215) of a filter cover (521) of the bin body (52), the matching part of the sealing sleeve (512) and a first end surface (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 pressure plate (511) to enable the sealing sleeve (512) to be separated from the first flange (5215), and the first through hole (5212) communicates 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. A tea leaf cartridge according to claim 1, wherein the filter cover (521) further comprises a third through hole (5216) penetrating 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 away from the third cylindrical surface (5112), the sealing sleeve (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 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 pressure plates (511) and the sealing sleeve (512) are engaged with the fourth cylindrical surface (5122) through the third end surface (5112), the outer surface of the third cylindrical surface (5112) is matched with the inner surface of the fourth cylindrical surface (5122), the third end surface (5111) is abutted against the fourth end surface (5121), the fifth end surface (5123) is abutted against the first end surface (5211) of the filter cover (521), the seal cover (512) is made of an elastic material, the fourth end surface (5121) of the seal cover (512) is matched with the first flange (5215) of the filter cover (521) in a staged mode, when the fourth end surface (5121) is matched with the first flange (5215), the fourth end surface (5121) covers the third through hole (5216) of the first flange (5215), the fourth cylindrical surface (5122) of the seal cover (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) screw-fitted to the mouth of a cup, a tea leaf chamber (5) for containing tea leaves and an end cap (4) for opening or closing a water outlet, characterised in that the tea leaf chamber (5) is a tea leaf chamber (5) according to 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) is axially coupled to the base body (48) by a snap, the base body (48) is partially inserted into the base (1), the base body (1) comprises a fifth cylindrical surface (15) partially wrapping the base body (48), a second flange (13) is arranged radially inwards on a fifth cylindrical surface (15), the second flange (13) is used for being matched with a first flange (5215) of the filter cover (521), a first sealing ring (2) for sealing connection is arranged between the first flange (5215) and the second flange (13), a first groove (12) which is radially outwards is further arranged on the fifth cylindrical surface (15), the first groove (12) is used for being clamped with the base body (48), a third boss (472) which is radially inwards is further arranged on the fifth cylindrical surface (15), the third boss (472) is used for limiting the rotation of the base body (48), a second groove (11) is arranged on the end surface of the fifth cylindrical surface (15), the second groove (11) is used for receiving the second sealing ring (3) to realize the sealing connection between the base (1) and the base body (48), a third thread (16) which is matched with the thread of the mouth of the water cup is further arranged on the fifth cylindrical surface (15), and the sixth cylindrical surface (4811) which is matched with the fifth cylindrical surface (15) of the base body (1) is further arranged on the base body, the sixth cylindrical surface (4811) is provided with a third flange (489) facing radially outwards, the third flange (489) is used for being inserted into the first groove (12) of the base (1) to limit axial movement between the base (1) and the seat body (48), the sixth cylindrical surface (4811) is further provided with a third groove (481), and the third groove (481) is matched with the third boss (472) of the base (1) to limit rotation between the base (1) and the seat 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 as claimed in 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 elongated hole (476) and a second cavity (475) partially receiving the torsion spring (41), the length direction of the elongated hole (476) is arranged along the moving direction of the lid body (47), the axial direction of the elongated hole (476) is arranged along the axial direction of the rotary shaft (42), and the second cavity (475) has an outer shape adapted to the outer shapes of the second end portion (422) and the shaft portion (423) of the torsion spring (41) According to the shape, the long round hole (476) is in sliding fit with the rotating shaft (42) and moves relative to the radial direction of the rotating shaft (42), the rotating shaft (42) axially penetrates through the torsion spring (41), the second locking part of the cover body (47) is provided with a third boss (472) matched with the first locking part (482) of the seat body (48), the first locking part (482) of the seat body (48) is provided with an inclined surface (484) in periodic sliding fit with the third boss (472) of the cover body (47), the inclined surface (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 periodic manner.

8. A lid according to claim 7, characterized in that the first locking portion (482) of the seat (48) is provided with a water outlet, the second locking portion of the lid (47) is provided with a sealing member (45) and a lid plate (44), the sealing member (45) comprises a first portion (451) and a second portion (452), the first portion (451) penetrates the second locking portion and abuts against the water outlet when the lid (8) is closed, the second portion (452) is provided between the lid (47) and the lid plate (44), and the lid (47) and the lid plate (44) clamp the second portion (452).

9. The lid for a tea water separating cup according to claim 8, wherein the cover (47) further comprises a plastic member (43), the plastic member (43) is embedded in the second coupling portion (473) of the cover (47) and slidably engaged with the rotating shaft (42), the base (48) further comprises a first magnet (49), the first magnet (49) is embedded in the base (48), the cover (47) further comprises a second magnet (46), the second magnet (46) is embedded in the cover (47), and the first magnet (49) and the second magnet (46) have opposite magnetic poles and opposite magnetic polarities when the 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 (8) according to any one of claims 4 to 9.