CN219594346U - Tea and coffee brewing device - Google Patents

Abstract

The utility model discloses a tea and coffee brewing device which comprises a device body, a support, a tray and a liquid discharge switch, wherein the device body is arranged at the upper end of the support, the tray is arranged at the lower part of the support, the tray is provided with a cup position which is opposite to the lower end of the device body up and down, the liquid discharge switch comprises an upper valve body fixedly connected with the lower end of the device body and a lower valve body fixedly connected with the upper end of the support, the upper valve body and the lower valve body are matched in a horizontal rotation mode, an upper liquid passing channel is arranged in the upper valve body in an axial direction, a lower liquid passing channel is arranged in the lower valve body in an axial direction, when the rotating device body drives the upper valve body to rotate to be communicated with the upper liquid passing channel and the lower liquid passing channel, the liquid discharge switch is opened, and when the rotating device body drives the upper valve body to rotate to be staggered up and down, the liquid discharge switch is closed.

Description

Tea and coffee brewing device

Technical Field

The utility model relates to the technical field of articles for daily use, in particular to a tea and coffee brewing device.

Background

Coffee, cocoa and tea are the main beverages popular in the world, and in the prior art, when multiple cups of coffee or tea are brewed at the same time, the coffee, cocoa and tea are usually brewed in a larger-capacity brewing device and then poured into a plurality of cups, and when the brewing device is used, a coffer or a tea master needs to hold the brewing device to pour the finished coffee or tea, so that the use is inconvenient.

In this way, part of the coffers and the teams begin to use the brewing device with the tapping switch to brew coffee or tea, the brewing device comprises a device body and the tapping switch arranged at the lower end of the device body, when the tapping switch is started, coffee or tea water in the device body flows out through a liquid outlet at the lower end, the brewing container solves the problem that the coffers or the teams hold the brewing device to pour the coffee or the tea, but when the existing tapping switch is used, the tapping switch is required to be rotated or a control key of the tapping switch is pressed, inconvenience still exists, and meanwhile, the control key of the tapping switch is exposed, impurities are easy to be stained, and the cleaning workload is increased.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model provides a tea and coffee brewing device which solves the problem that a liquid discharge switch control key is exposed through arranging a built-in valve body so as to be convenient to clean.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tea and coffee brewing device, includes utensil body, support, tray and weeping switch, the upper end of support is located to the utensil body, the lower part of support is located to the tray, the tray has the cup position just right from top to bottom with utensil body lower extreme, the weeping switch includes the last valve body of being connected with utensil body lower extreme fixed and the lower valve body of being connected with support upper end fixed, but go up the valve body and the cooperation of lower valve body in horizontal rotation's mode, the axial in the last valve body has the upper and crosses the liquid passageway, the axial in the lower valve body has the lower liquid passageway that crosses, when rotatory utensil body drive upper valve body rotatory upper and cross the liquid passageway intercommunication down, the weeping switch is opened, when rotatory utensil body drive upper valve body rotatory upper and cross the liquid passageway dislocation from top to bottom, the weeping switch is closed.

In addition, the tea and coffee brewing device can also have the following additional technical characteristics:

according to one example of the utility model, the upper valve body comprises a valve rod, an upper valve plate and an outer valve sleeve, wherein a through hole is formed from the upper end to the lower end of the valve rod, the inner annular wall at the upper part of the outer valve sleeve is fixedly connected with the outer annular wall at the upper part of the valve rod, the upper outer wall of the outer valve sleeve is fixedly connected with the inner wall of the lower port of the appliance body, the upper valve plate is clamped at the lower end of the valve rod, the upper valve plate is provided with a side notch communicated with the through hole, and the through hole and the side notch form an upper liquid passing channel;

the lower valve body comprises a lower valve plate and an inner valve sleeve, the lower valve plate is fixedly sleeved in the inner valve sleeve, the outer annular wall of the lower valve plate is in sealing connection with the inner annular wall of the inner valve sleeve, the upper end of the inner valve sleeve stretches into the lower end of the outer valve sleeve, the outer annular wall of the upper end of the inner valve sleeve is in rotatable sealing fit with the inner annular wall of the lower end of the outer valve sleeve, the lower end of the inner valve sleeve is fixedly and hermetically connected with the inner wall of the upper end of the support, and the lower end of the valve rod and the upper valve plate are rotatably arranged in the inner valve sleeve.

According to one example of the utility model, the lower end of the valve rod is provided with the clamping parts which extend downwards symmetrically by taking the central axis of the valve rod as a symmetry axis, the upper end surface of the upper valve plate is provided with the clamping grooves matched with the clamping parts, and the clamping parts of the valve rod are in tight plug-in fit with the clamping grooves of the upper valve plate.

According to one example of the utility model, the lower inner annular wall of the inner valve sleeve is provided with a screwing part which is positioned in the side notch, the tapping switch is completely opened when the screwing part is abutted against one side wall of the side notch, the tapping switch is completely closed when the screwing part is abutted against the other side wall of the side notch, and the tapping switch is in a half-open and half-closed state when the screwing part is positioned between the two side walls of the side notch.

According to one example of the present utility model, the number of the rotation stopping parts is two, the rotation stopping parts are symmetrically arranged by taking the central axis of the inner valve sleeve as a symmetry axis, and the side notch is arranged corresponding to the rotation stopping parts.

According to an example of the utility model, the central angle formed by the side notch and the center of the upper valve plate is 100-150 degrees, and the maximum rotation angle of the upper valve plate is 90 degrees.

According to one example of the utility model, the upper valve body further comprises a liquid outlet nozzle, the liquid outlet nozzle comprises an upper annular part and a lower conical part integrated with the upper annular part, a liquid outlet hole is formed in the central shaft of the lower conical part, a threaded counter bore is formed in the upper end of the support, the upper annular part is propped against the lower end face of the large-diameter section of the threaded counter bore, the lower part of the lower conical part extends out of the small-diameter section of the threaded counter bore, a second external thread in threaded connection with the threaded counter bore is formed in the outer annular wall of the inner valve sleeve, and a fifth sealing ring is arranged between the lower valve plate and the upper annular part.

According to one example of the utility model, the outer wall of the upper part of the outer valve sleeve is a polygonal ring part, the lower end of the appliance body is provided with a connecting sleeve which extends downwards, the connecting sleeve is provided with a polygonal counter bore which is circumferentially fixed with the polygonal ring part and is in sealing connection, the upper end of the valve rod is also provided with a compression pattern, the upper end of the valve rod is sleeved with a gland nut matched with the compression pattern, the gland nut is in tight sealing connection with the connecting sleeve, and the gland nut is provided with a liquid through hole communicated with the through hole.

According to one example of the utility model, the outer wall of the valve rod is provided with a plurality of convex rings at intervals from top to bottom, and a ring groove for placing a fourth sealing ring is formed between two upper and lower adjacent convex rings.

According to an example of the present utility model, the upper valve plate and the lower valve plate are both ceramic plates.

The utility model has the beneficial effects that:

compared with the tea and coffee brewing device in the prior art, the tea and coffee brewing device provided by the utility model has the advantages that the liquid passing size of the liquid discharging switch is controllable, only part of the outer valve sleeve structure is exposed in the liquid passing switch, and other structures are positioned in the outer valve, the connecting sleeve and the threaded counter bore, so that the increased cleaning amount caused by setting the control key is avoided, and the use convenience and the cleaning performance of the tea and coffee brewing device are improved.

Drawings

Fig. 1 is a schematic perspective view of a tea and coffee brewing apparatus according to embodiment 1 of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is an exploded view of the tapping switch of FIG. 2;

FIG. 4 is a schematic perspective view of a portion of the components of FIG. 3;

fig. 5 is a schematic view showing the internal structure of a tea-coffee brewing apparatus according to embodiment 1 of the present utility model;

FIG. 6 is an enlarged view at A in FIG. 5;

in the reference numerals:

an instrument body 10 and a connecting sleeve 11;

a bracket 20 and a threaded counter bore 21;

a tray 30 and a cup position 31;

the liquid discharge switch 40, the valve rod 41, the through hole 411, the first external thread 412, the pressing thread 413, the clamping part 414, the convex ring 415, the easy rotating ring 416, the upper valve plate 42, the clamping groove 421, the side notch 422, the outer valve sleeve 43, the polygonal ring 431, the gland nut 44, the liquid through hole 441, the lower valve plate 45, the clamping strip 451, the inner valve sleeve 46, the clamping groove 461, the second external thread 462, the rotation stopping part 463, the clamping ring 464, the liquid outlet nozzle 47, the upper annular part 471, the lower conical part 472, the liquid outlet hole 473, the first sealing ring 481, the second sealing ring 482, the third sealing ring 483, the fourth sealing ring 484 and the fifth sealing ring 485.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1 to 6, an embodiment of the present utility model discloses a tea and coffee brewing apparatus, which comprises an apparatus body 10, a bracket 20, a tray 30 and a tapping switch 40, wherein the apparatus body 10 is used for brewing coffee or tea, the bracket 20 is used for supporting the apparatus body 10, the tray 30 is used for placing a coffee cup or teacup, and the tapping switch 40 is used for controlling whether the coffee or tea in the key body 10 flows out.

As shown in fig. 1 and 2, the support 20 is in a seven-shaped structure, a n-shaped structure or a tripod structure, the device body 10 is arranged at the upper end of the support 20, the device body 10 is located above the support 20, the tray 30 is arranged at the lower part of the support 20, the tray 30 is provided with a cup position 31 which is opposite to the lower end of the device body 10 up and down, the liquid discharge switch 40 comprises an upper valve body fixedly connected with the lower end of the device body 10 and a lower valve body fixedly connected with the upper end of the support 20, the upper valve body and the lower valve body are matched in a horizontal rotation mode, an upper liquid passing channel is arranged in the upper valve body in the axial direction, a lower liquid passing channel is arranged in the lower valve body in the axial direction, when the device body 10 is rotated to drive the upper valve body to rotate to be communicated with the upper liquid passing channel, the liquid discharge switch 40 is opened, and when the upper valve body is rotated to drive the upper liquid passing channel to be staggered up and down.

According to the tea and coffee brewing device disclosed by the utility model, the upper valve body is fixedly connected with the device body 10, the lower valve body is fixedly connected with the bracket 20, the upper valve body is matched with the lower valve body in a horizontally rotatable mode, and the upper valve body can be driven to rotate through rotating the device body 10, so that the upper liquid passing channel and the lower liquid passing channel are communicated in an up-down aligned manner or are disconnected in an up-down staggered manner, the switch of the liquid discharging switch 40 is realized, the device body 10 is utilized to replace a control key in the prior art, the structure of the liquid discharging switch 40 is simplified, the setting of the control key is avoided, the cleaning workload is increased, and the convenience and the cleaning performance of the tea and coffee brewing device are improved.

As shown in fig. 2 and 3, the upper valve body comprises a valve rod 41, an upper valve plate 42 and an outer valve sleeve 43, a through hole 411 is arranged from the upper end to the lower end of the valve rod 41, the inner annular wall of the upper part of the outer valve sleeve 43 is fixedly connected with the outer annular wall of the upper part of the valve rod 41, the upper outer wall of the outer valve sleeve 43 is fixedly connected with the inner wall of the lower port of the appliance body 10,

specifically, the outer wall of the upper part of the outer valve sleeve 43 is a polygonal ring portion 431, the inner wall of the polygonal ring portion 431 is provided with an internal thread, the outer ring wall of the upper part of the valve rod 41 is provided with a first external thread 412, the internal thread is in threaded connection with the first external thread 412, the outer valve sleeve 43 is fixedly sleeved and hermetically connected with the valve rod 41, the lower end of the tool body 10 is provided with a connecting sleeve 11 extending downwards, and the connecting sleeve 11 is provided with a polygonal counter bore circumferentially fixed and hermetically connected with the polygonal ring portion 431.

In an alternative embodiment of the present application, the polygonal ring portion 431 is preferably an outer hexagonal nut structure, and the hexagonal nut structure is used to connect the outer valve sleeve 43 and the valve stem 41, which is convenient to connect and stable in structure.

In an alternative embodiment of the application, the upper end of the valve rod 41 is further provided with a pressing line 413 located above the first external thread 412, the upper end of the valve rod 41 is sleeved with a gland nut 44 matched with the pressing line 413, the gland nut 44 is tightly sealed and connected with the connecting sleeve 11, the gland nut 44 is provided with a liquid through hole 441 communicated with the through hole 41, the polygonal ring portion 431 is matched with the polygonal counter bore to fix the outer valve sleeve 43 and the connecting sleeve 11 circumferentially, and the connecting sleeve 11 is fixedly connected with the outer valve sleeve 43 through the cooperation of the gland nut 44 and the pressing line 413.

In an alternative embodiment, a first sealing ring 481 is clamped between the gland nut 44 and the connecting sleeve 11, a second sealing ring 482 is clamped between the upper end surface of the valve rod 41 and the inner step surface of the gland nut 44, and the tightness of the joint between the gland nut 44 and the connecting sleeve 11 and between the gland nut 44 and the valve rod 41 can be increased by arranging the first sealing ring 481 and the second sealing ring 482.

As shown in fig. 3 and 6, the upper valve plate 42 is clamped at the lower end of the valve rod 41, specifically, the lower end of the valve rod 41 extends downward and symmetrically with the central axis of the valve rod 41 as a symmetry axis to form a clamping portion 414, a clamping groove 421 matched with the clamping portion 414 is formed in the upper end surface of the upper valve plate 42, and the clamping portion 414 of the valve rod 41 is in tight plug-in fit with the clamping groove 421 of the upper valve plate 42.

The upper valve plate 42 has a side notch 422 communicating with the through hole 411, and the through hole 441, the through hole 411, and the side notch 422 together form an upper liquid passage, that is, the coffee or tea in the container body sequentially passes through the upper liquid passage formed by the through hole 441, the through hole 411, and the side notch 422 and then enters the lower liquid passage.

As shown in fig. 3, 4 and 6, the lower valve body includes a lower valve plate 45, an inner valve sleeve 46 and a liquid outlet 47, the lower valve plate 45 is fixedly sleeved in the inner valve sleeve 46, the outer annular wall of the lower valve plate 45 is in sealing connection with the inner annular wall of the inner valve sleeve 46, specifically, two clamping strips 451 extending axially along the lower valve plate 45 are circumferentially and alternately arranged on the outer annular wall of the lower valve plate 45, clamping grooves 461 in one-to-one inserting fit with the clamping strips 451 are arranged on the inner annular wall of the inner valve sleeve 46, and the clamping strips 451 are tightly inserted and matched with the clamping grooves 461 to realize that the lower valve plate 45 is fixedly sleeved in the inner valve sleeve 46.

As shown in fig. 3 and 6, the upper end of the inner valve sleeve 46 extends into the lower end of the outer valve sleeve 43, and the outer annular wall at the upper end of the inner valve sleeve 46 is in rotatable sealing fit with the inner annular wall at the lower end of the outer valve sleeve 43, specifically, two clamping rings 464 are arranged at intervals up and down on the outer wall of the inner valve sleeve 46, a third sealing ring 483 for enabling the outer annular wall at the upper end of the inner valve sleeve 46 to be in sealing connection with the inner annular wall at the lower end of the outer valve sleeve 43 is clamped between the two clamping rings 464, and the lower end of the valve rod 41 and the upper valve plate 42 are rotatably arranged in the inner valve sleeve 46;

in the embodiment of the utility model, the upper valve plate 42 and the lower valve plate 45 are both ceramic plates, and the valve plates of the ceramic plates have stable structure and small influence from heat.

As shown in fig. 3 and 6, the liquid outlet nozzle 47 includes an upper annular portion 471 and a lower conical portion 472 integrated with the upper annular portion 471, a liquid outlet hole 473 is formed in a central shaft of the lower conical portion 472, a threaded counter bore 21 is formed at an upper end of the support 20, the upper annular portion 471 is pressed against a lower end face of a large diameter section of the threaded counter bore 21, a lower portion of the lower conical portion 472 extends out of a small diameter section of the threaded counter bore 21, a second external thread 462 in threaded connection with the threaded counter bore 21 is formed on an outer annular wall of the inner valve sleeve 46, the second external thread 462 is in threaded connection with the threaded counter bore 21 to realize fixed sleeving and sealing connection between a lower end of the inner valve sleeve 46 and an inner wall of the upper end of the support 20, and a fifth sealing ring 485 is arranged between the lower valve plate 45 and the upper annular portion 471.

As shown in fig. 4, the lower inner annular wall of the inner valve sleeve 46 is provided with a rotation stop portion 463, the rotation stop portion 463 is located in the side gap 422, when the rotation stop portion 463 abuts against one side wall of the side gap 422, the tapping switch 40 is fully opened, when the rotation stop portion 463 abuts against the other side wall of the side gap 422, the tapping switch 40 is fully closed, and when the rotation stop portion 463 is located between two side walls of the side gap 422, the tapping switch 40 is in a half-open and half-closed state.

In the embodiment of the utility model, the number of the rotation stopping parts 463 is two, the central shaft of the inner valve sleeve 46 is used as the symmetry axis, the side notch 422 is arranged corresponding to the rotation stopping part 463, the central angle formed by the center of the side notch 422 and the center of the upper valve plate 42 is 100-150 degrees, the maximum rotation angle of the upper valve plate 42 is 90 degrees, namely, when the appliance body 10 is at the initial angle, the upper liquid passing channel and the lower liquid passing channel are staggered up and down, the liquid discharging switch 40 is closed, when the appliance body 10 is rotated 90 degrees horizontally, the upper liquid passing channel and the lower liquid passing channel are aligned up and down, the liquid discharging switch 40 is opened, and the liquid passing size of the liquid discharging switch 40 is controllable.

In the embodiment of the present utility model, the outer wall of the valve rod 41 is provided with a plurality of convex rings 415 from top to bottom at intervals, a ring groove is formed between two adjacent convex rings 415 from top to bottom, a fourth sealing ring 484 is clamped in the ring groove, and the tightness of the joint between the valve rod 41 and the inner valve sleeve 46 can be increased by arranging the fourth sealing ring 484.

In embodiments of the present utility model, the stem 41 is fixedly sleeved with a rotatable collar 416 on the mating surface with the inner valve sleeve 46, and the provision of the rotatable collar 416 helps to reduce the resistance to rotation of the stem 41.

In the embodiments of the present utility model, it should be noted that: when the tea and coffee brewing device is used, filter paper is required to be attached to the inner wall of the device body 10 or a filter screen is required to be placed at the liquid inlet of the connecting sleeve 11, so that the upper valve body or the lower valve body is prevented from being blocked by tea or unmelted coffee.

Compared with the tea and coffee brewing device in the prior art, the tea and coffee brewing device disclosed by the embodiment of the utility model has the advantages that the liquid passing size of the liquid discharging switch 40 is controllable, only part of the structure of the outer valve sleeve 43 is exposed in the liquid passing switch, and other structures are positioned in the outer valve sleeve 43, the connecting sleeve 11 and the threaded counter bore 21, so that the increased cleaning amount caused by setting the control key is avoided, and the use convenience and the cleaning performance of the tea and coffee brewing device are improved.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A tea and coffee brewing device which is characterized in that: including utensil body (10), support (20), tray (30) and weeping switch (40), the upper end of support (20) is located to utensil body (10), the lower part of support (20) is located to tray (30), tray (30) have with utensil body (10) lower extreme about just cup position (31), weeping switch (40) include with utensil body (10) lower extreme fixed connection's last valve body and with support (20) upper end fixed connection's lower valve body, but go up valve body and lower valve body cooperation with horizontal rotation's mode, the axial in the last valve body has the upper and crosses the liquid passageway, the axial in the lower valve body has the lower liquid passageway that crosses, when rotatory utensil body (10) drive upper valve body rotatory upper and cross the liquid passageway intercommunication down, weeping switch (40) are opened, when rotatory utensil body (10) drive upper valve body rotatory upper liquid passageway and cross the liquid passageway down dislocation from top to bottom, weeping switch (40) is closed.

2. A tea and coffee brewing apparatus as claimed in claim 1 wherein: the upper valve body comprises a valve rod (41), an upper valve plate (42) and an outer valve sleeve (43), a through hole (411) is formed in the upper end to the lower end of the valve rod (41), an inner annular wall at the upper part of the outer valve sleeve (43) is fixedly connected with an outer annular wall at the upper part of the valve rod (41), an upper outer wall of the outer valve sleeve (43) is fixedly connected with the inner wall of a lower port of the appliance body (10), the upper valve plate (42) is clamped at the lower end of the valve rod (41), the upper valve plate (42) is provided with a side notch (422) communicated with the through hole (411), and the through hole (411) and the side notch (422) form an upper liquid passing channel;

the lower valve body comprises a lower valve plate (45) and an inner valve sleeve (46), the lower valve plate (45) is fixedly sleeved in the inner valve sleeve (46), the outer annular wall of the lower valve plate (45) is in sealing connection with the inner annular wall of the inner valve sleeve (46), the upper end of the inner valve sleeve (46) stretches into the lower end of the outer valve sleeve (43), the outer annular wall of the upper end of the inner valve sleeve (46) is in rotatable sealing fit with the inner annular wall of the lower end of the outer valve sleeve (43), the lower end of the inner valve sleeve (46) is fixedly and hermetically connected with the inner wall of the upper end of the support (20), and the lower end of the valve rod (41) and the upper valve plate (42) are rotatably arranged in the inner valve sleeve (46).

3. A tea and coffee brewing apparatus as claimed in claim 2 wherein: the lower extreme of valve rod (41) uses the center pin of valve rod (41) as symmetry axis downwardly symmetry and extends there is joint portion (414), joint portion (414) assorted joint groove (421) are seted up to the up end of upper valve block (42), joint portion (414) of valve rod (41) and joint groove (421) of upper valve block (42) are closely pegged graft and are cooperated.

4. A tea and coffee brewing apparatus as claimed in claim 3 wherein: the lower part inner ring wall of interior valve cover (46) is equipped with and revolves and ends portion (463), revolve and end portion (463) and be located side breach (422), when revolve and end portion (463) support and lean on one lateral wall of side breach (422), liquid release switch (40) are opened completely, when the other lateral wall of leaning on side breach (422) is supported to end portion (463), liquid release switch (40) are closed completely, when revolve and end portion (463) are located between two lateral walls of side breach (422), liquid release switch (40) are in half-open half-close state.

5. A tea and coffee brewing apparatus as recited in claim 4 wherein: the number of the rotation stop parts (463) is two, the rotation stop parts are symmetrically arranged by taking the central axis of the inner valve sleeve (46) as a symmetrical axis, and the side notch (422) is correspondingly arranged with the rotation stop parts (463).

6. A tea and coffee brewing apparatus as recited in claim 5, wherein: the central angle formed by the side notch (422) and the center of the upper valve plate (42) is 100-150 degrees, and the maximum rotation angle of the upper valve plate (42) is 90 degrees.

7. A tea and coffee brewing apparatus as recited in claim 6 wherein: the upper valve body further comprises a liquid outlet nozzle (47), the liquid outlet nozzle (47) comprises an upper annular portion (471) and a lower conical portion (472) integrated with the upper annular portion (471), a liquid outlet hole (473) is formed in a central shaft of the lower conical portion (472), a threaded counter bore (21) is formed in the upper end of the support (20), the upper annular portion (471) abuts against the lower end face of a large-diameter section of the threaded counter bore (21), the lower portion of the lower conical portion (472) extends out of a small-diameter section of the threaded counter bore (21), a second external thread (462) in threaded connection with the threaded counter bore (21) is arranged on the outer annular wall of the inner valve sleeve (46), and a fifth sealing ring (485) is arranged between the lower valve plate (45) and the upper annular portion (471).

8. A tea and coffee brewing apparatus as recited in claim 7 wherein: the upper outer wall of the outer valve sleeve (43) is a polygonal ring part (431), the lower end of the appliance body (10) is provided with a connecting sleeve (11) extending downwards, the connecting sleeve (11) is provided with a polygonal counter bore which is circumferentially fixed with the polygonal ring part (431) and is in sealing connection, the upper end of the valve rod (41) is also provided with a compression pattern (413), the upper end of the valve rod (41) is sleeved with a gland nut (44) matched with the compression pattern (413), the gland nut (44) is in tight sealing fit connection with the connecting sleeve (11), and the gland nut (44) is provided with a liquid through hole (441) communicated with the through hole (411).

9. A tea and coffee brewing apparatus as recited in claim 8 wherein: the outer wall of the valve rod (41) is provided with a plurality of convex rings (415) from top to bottom at intervals, and a ring groove for placing a fourth sealing ring (484) is formed between two upper and lower adjacent convex rings (415).

10. A tea and coffee brewing apparatus as claimed in claim 2 wherein: the upper valve plate (42) and the lower valve plate (45) are ceramic plates.