RU2783205C1 - Brewing chamber and coffee machine with a brewing chamber - Google Patents

Abstract

FIELD: preparation of coffee.

SUBSTANCE: brewing chamber includes a brewing chamber body and a brewing chamber. The bottom of the brewing chamber is provided with a groove with an inner diameter smaller than the inner diameter of the brewing chamber; the side wall of the groove is provided with a coffee outlet, wherein said coffee outlet has a through connection with the exterior; the bottom of the groove is provided with a through hole, a sealing ring for coffee is located in the through hole, a sealed water outlet is rigidly installed at the upper end of the groove, and a filtering part for filtering coffee is located above the sealed water outlet; the first sliding hole on the filtering part, the second sealing sliding hole on the sealed water outlet, and the third sealing sliding hole on the sealing ring for coffee are provided with an outlet part capable of sliding in the axial direction along the through hole. The through hole in the lower part of the groove is blocked in order to prevent liquid leakage when brewing coffee; a sealed water outlet is also rigidly installed at the upper end of the groove, thereby preventing the wear of the sealed water outlet and thus increasing the internal pressure in the brewing chamber when brewing coffee. The invention also discloses a coffee machine containing the above brewing chamber.

EFFECT: creation of a functional brewing chamber for a coffee machine.

16 cl, 13 dwg

Description

This application claims the priority of the Chinese patent application with the application number 201910958683.4 and the invention title "Brew chamber and coffee maker with brew chamber" submitted to the China Patent Office on October 10, 2019, all contents are incorporated into this application by reference.

Technical field

The invention relates to the field of coffee preparation, namely to the brewing chamber. In addition, the present invention also relates to a coffee machine containing the aforementioned brewing chamber.

State of the art

To prepare coffee, people applied electronic technology, automatically controlling the entire process of making coffee, including grinding, pressing, filling, brewing and removing residues - this is how coffee machines were created.

In existing coffee machines, coffee powder pressing and coffee grounds unloading is carried out by a piston system, which includes a left and right bracket, a cleaning nozzle, a piston assembly, a piston sleeve, a front cover assembly, a gear, an auger, an auger drive gear, piston sleeve travel switches, a switch piston jacket stroke and other structural components.

However, the pressure in the brewing chamber of existing coffee machines will be reduced during brewing, the brewing effect will be poor. In addition, due to poor sealing of the brew chamber, liquid may leak out during the brewing process, so that the coffee in the brew chamber cannot be completely discharged from the coffee outlet.

In summary, pressurizing the brew chamber and preventing liquid leakage during coffee brewing is a topical issue for those skilled in the art.

Content of the invention

In view of this, it is an object of the present invention to provide a brewing chamber that can generate more pressure when brewing coffee with the chamber, has good sealing properties, and does not leak liquid when brewing coffee.

Another object of the present invention is to provide a coffee machine including the aforementioned brewing chamber.

To achieve the above objectives, the present invention provides the following technical solutions:

a brewing chamber comprising a brewing chamber body rotatably disposed under the brewing component, wherein the brewing chamber body is provided with a brewing chamber for brewing coffee, the brewing chamber body is provided with a brewing chamber opening allowing the brewing element to enter the brewing chamber to press the coffee powder in the brewing chamber chamber and pressurizing the brewing coffee, the bottom of the brewing chamber is provided with a groove with an inner diameter smaller than the inner diameter of the brewing chamber, the coffee outlet is made on the side wall of the groove, while the coffee outlet has a through connection with the outside;

there is a through hole at the bottom of the groove, the axis of which coincides with the axis of the brewing chamber, the inner wall of the through hole is provided with a coffee sealing ring, and a sealed water outlet is rigidly installed on the upper end surface of the groove, which is equipped with a coffee outlet that communicates with the coffee outlet , and the filter part for filtering coffee is located above the sealed water outlet;

the filter part is provided with a first sealing hole, and the sealed water outlet is provided with a second sealing sliding hole, the coffee sealing ring is provided with a third sealing sliding hole, the first sliding hole, the second sealing sliding hole and the third sealing sliding hole are provided with an outlet part that can slide into axial direction along the through hole; the outlet part is at least slidably connected to the third sealed sliding hole.

Preferably, the opening of the brewing chamber is located in the upper part of the brewing chamber body, the inner wall of the through hole is provided with a second sealing member fixing position radially protruding inwards, the coffee sealing ring is an I-shaped sealing ring, the I-shaped sealing ring is clamped on the upper surface and the bottom surface of the locking position of the second sealing element.

Preferably, the filter portion is provided with a first threaded hole, the sealed water outlet is provided with a second threaded hole, the upper end surface of the groove is provided with a third threaded hole, the filter portion and the sealed water outlet are fixed to the upper end surface of the groove with bolts passing through the first threaded hole, a second threaded hole, and a third threaded hole.

Preferably, the outlet portion includes an exhaust plunger, and an exhaust member disposed at an upper end of the exhaust plunger, wherein the exhaust plunger is at least in seal sliding engagement with the second seal slide hole and the third seal slide hole.

Preferably, the filter part is a metal filter mesh or a plastic filter mesh, the sealed water outlet is a silica gel element or a rubber element, and the coffee sealing ring is a silica gel element or a rubber element.

Preferably, the coffee outlet is located on one side of the second seal slide or the coffee outlet is located on the second seal slide.

The invention relates to a coffee machine which includes a housing and any of the aforementioned brewing chambers located in the housing.

Preferably, the brewing unit includes a brewing head that can move up and down and be housed in a housing, wherein the brewing chamber housing is rotatably positioned under the brewing head, and the diameter of the brewing head corresponds to the diameter of the opening of the brewing chamber;

the brewing head is connected to the first power part for driving the brewing head, and the brewing chamber body is connected to the second power part for driving the brewing chamber body;

during coffee brewing, the second power part drives the brew chamber body to rotate so that the opening of the brew chamber is opposite the brew head, while the brew head is driven by the first power part to move down and advance into the brew chamber body to ensure sealing to press the coffee powder in the body of the brewing chamber and create coffee brewing pressure;

when discharging the coffee residues, the second power part drives the brew chamber body in the reverse direction, so that the outlet is opposite the brew head, and the brew head moves down, driven by the first power part, to push the outlet to move down, thereby the outlet part pushes the coffee residues in the brewing chamber out through the openings in the brewing chamber.

Preferably, the pressure plate is rigidly connected to the lower part of the outlet pusher of the outlet part, the pressure plate is connected to the outer wall of the brewing chamber body by means of an elastic element, one end of the elastic element abuts against the bottom end surface of the through hole, and the other end abuts against the pressure plate, the outlet element is attached to the top of the filter part through the elastic element, the brew head pushes the pressure plate down, moving the outlet downward to discharge the coffee grounds, and the elastic element is used to actuate the pressure plate after the end of the discharge of the residue to return to its original position.

Preferably, the resilient element is a return spring, and the lower end of the exhaust pusher passes through the middle hole of the return spring and is connected to the pressure plate.

Preferably, the first power part includes a first motor and a convex drive crank connected to the rotating shaft of the first motor, the oscillating part at the top of the drive crank is rotatably connected to the top of the brew head through the rocking link so that the brew head moves along a linear channel, located in the body;

or the rotating shaft of the first motor and the top of the brew head are driven by the screw rotating so that the brew head moves along a linear channel located in the body, while the brew head is driven by a micro switch to control the up and down movement distance of the brew head, and the brew head the head is provided with a water inlet or lug, the brewing bracket is provided with a sliding groove that matches the length of the screw and matches the water inlet or lug for sliding.

Preferably, the body is provided with a stop block to limit the rotation of the drive crank, the stop block is located on the rotation track of one side of the drive crank to prevent the brew head from moving or swinging under the action of hot water in the brew chamber body when water enters.

Preferably, the width of the bent portion of the locking rod on the stop block for contact with the oscillating part is at least half the width of the oscillating part.

Preferably, the brew head is provided with a purge tube which extends in the axial direction of the brew head, and below the purge tube is a buoyancy steam valve which can float with the hot water in the brew chamber body. When the water vapor in the brew chamber body exits the purge tube, the steam buoyancy valve can float with the hot water in the brew chamber body, blocking the purge tube.

Preferably, the pressure plate is an arcuate pressure plate with an opening facing the direction of the outlet plunger, and the surface of the arcuate pressure plate is provided with a plurality of rotating pressure plate shafts for contact with the brew head.

Preferably, the filtering part is rigidly connected to the lower part of the brewing chamber body by means of buckles, screws or strong pressure.

Preferably, the second power section comprises a second motor located on a fixing support, and a liquid outlet tube connected to the rotating shaft of the second motor through a toothed part, and the liquid outlet tube is rigidly connected to the brewing chamber body and is located on the axis of the brewing chamber body.

The invention represents a brewing chamber, which includes a brewing chamber body rotatably located under the brewing unit, the brewing chamber body is equipped with a brewing chamber for brewing coffee, the brewing chamber body is provided with a brewing chamber opening for entering the brewing unit into the brewing chamber for pressing coffee powder into the brewing chamber and pressurizing the coffee brewing, the bottom of the brewing chamber is provided with a groove, the inner diameter of which is smaller than the diameter of the brewing chamber, and the side wall of the groove is provided with a coffee outlet, which is connected to the outside by a through hole;

a through hole is made at the bottom of the groove, the axis of which coincides with the axis of the brewing chamber, a sealing ring for coffee is provided on the inner wall of the through hole, and a sealed water outlet is rigidly installed on the upper end surface of the groove, which is equipped with a coffee outlet that communicates with the hole for coffee, and the filter part for filtering coffee is located above the sealed water outlet;

the filter part is provided with a first sliding hole, the sealed water outlet is provided with a second sealing sliding hole, the coffee sealing ring is provided with a third sealing sliding hole, the first sliding hole, the second sealing sliding hole and the third sealing sliding hole are provided with an outlet part that can be axially slidable direction along the through hole; the outlet part is at least slidably connected to the third sealed sliding hole.

The brew chamber is used to brew coffee. When coffee is brewed, the brewing unit enters the brewing chamber through the opening of the brewing chamber to press the coffee powder in the brewing chamber and pressurize the coffee brewing, thereby completing the brewing. During the brewing process, the pressure in the brew chamber will increase and the brewed coffee will drain down the filter section through the coffee outlet on the airtight seal.

The lower part of the brewing chamber body according to the invention is provided with a groove, the lower part of the groove is provided with a through hole, and the coffee sealing ring is placed in the through hole. The coffee sealing ring is hermetically sealed and connected to the outlet portion, which can be slidable in the axial direction of the through hole. If the through hole coincides with the axis of the brewing chamber, the outlet part can move along the axis of the brewing chamber. After brewing, the outlet can remove the remaining coffee grounds in the brew chamber in preparation for the next brew.

The first sliding hole, the second sealing sliding hole and the third sealing sliding hole are provided with an outlet part that can slide in the axial direction of the through hole, while the outlet part passes through the first sliding hole, the second sealing sliding hole and the third sealing sliding hole at the same time, while making coffee. only the coffee outlet in the brewing chamber is connected to the coffee outlet while the coffee outlet is connected to the outside, when the outlet is connected to at least the third seal sliding hole, the through hole at the bottom of the groove is blocked to prevent leakage of liquid during coffee brewing; furthermore, since the sealed water outlet is fixed on the upper end surface of the groove, it will not move when the outlet portion is moved, thereby preventing wear of the sealed water outlet, which increases the internal pressure in the brewing chamber when brewing coffee.

The present invention also provides a coffee machine, the body of which is provided with the aforementioned brewing chamber, which can pressurize the brewing chamber during the brewing process and does not leak liquid during the brewing process.

Description of drawings

In order to more clearly illustrate the embodiments of the invention or the prior art, the following will briefly present the drawings to be used in describing the embodiments or the prior art. Obviously, the drawings in the following description are only embodiments of the invention. For those skilled in the art, other drawings may be obtained from the drawings provided without any non-creative work.

Fig. 1 - Three-dimensional detail drawing of a coffee machine according to the present invention;

Rice. 2 is a schematic representation of the construction of the brewing head and brewing bracket according to the present invention;

Rice. 3 - Schematic representation of the design of the brewing unit according to the present invention;

Rice. 4 is a schematic representation of the structure of the residue discharge section according to the present invention;

Rice. 5 is a schematic representation of the structure of the brewing chamber as it rotates according to the present invention;

Rice. 6 is a schematic representation of the structure of the brew head during the process of pressing and discharging residues according to the present invention;

Rice. 7 - Schematic representation of the construction of the brew head after pressing and discharging residues according to the present invention;

Rice. 8 is a front view of the brew head after completion of the brew press according to the present invention;

Rice. 9 is a side view of the brew head after completion of the brew pressing according to the present invention;

Rice. 10 is a front view of the brew head in upward movement according to the present invention;

Rice. 11 is a side view of the brewing chamber according to the present invention;

Rice. 12 is a sectional view of the first motor driving the brew head in an upward direction through the screw according to the present invention;

Rice. 13 is a sectional view of the first motor driving the brew head in a downward direction through the screw according to the present invention;

On fig. 1-13:

1 First motor

1.1 Adapter

1.11 Microswitch actuator position

1.2 First bearing

1.3 Drive crank

1.33 Swinging part

1.4 The upper part of the swing rocker

1.5 Stop block

1.51 Curved part of the rod lock

1.6 Second bearing

1.7 Rocking rocker

1.8 First shaft

1.9 Brew head

1.91 Water inlet

1.10 O-ring

1.20 Purge tube

1.30 Steam buoyancy valve

2 Brewing bracket

2.9 Camera

2.10 Downward outlet

2.11 Microswitch for the first movement of the brew head

2.12 Microswitch for the second movement of the brew head

2.13 First nest

2.14 Buckle

2.2 Brewing chamber position switch assembly

2.3 Gear tube

2.30 Transfer gear

2.31 Internal gauge tooth

2.4 Fixing support

2.41 Second slot

2.42 Third nest

2.5 Motor gear

2.6 Line channel

2.7 Feed opening

2.8 Positioning rotary hole

3 Exhaust pusher

3.1 Exhaust plate

3.2 Filter part

3.3 Sealed water outlet

3.4 First sealing sliding hole

3.5 Filter opening

301 Second sealing sliding hole

302 Coffee hole

4 Brewing chamber body

4.1 Support cover

401 Brewing chamber

402 Brewing chamber opening

403 Middle hole

4.2 Handle

4.3 Pressure plate

4.4 Return spring

4.5 Axis of rotation of the pressure plate

4.6 O-ring for coffee

4.7 Fluid outlet tube

4.71 External teeth

4.72 Coffee outlet

460 Through hole

470 Third sealing sliding hole

490 Groove

6 Second motor

901 Screw

902 Screw hole

903 Water inlet

904 Sliding groove.

Specific Implementation Methods

The technical solutions in the embodiments of the present invention will be clearly and completely described below, together with the accompanying drawings, in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present invention.

The essence of the present invention is to provide a brewing chamber which allows a relatively large pressure to be generated in the brewing chamber when brewing coffee, with good sealing to avoid leakage during coffee brewing. .

Please see pic. 1-13,

Fig. 1 - Three-dimensional detail drawing of a coffee machine according to the present invention;

rice. 2 is a schematic representation of the construction of the brewing head and brewing bracket according to the present invention;

rice. 3 - Schematic representation of the design of the brewing unit according to the present invention;

rice. 4 is a schematic representation of the structure of the residue discharge section according to the present invention;

rice. 5 is a schematic representation of the structure of the brewing chamber as it rotates according to the present invention;

rice. 6 is a schematic representation of the structure of the brew head during the process of pressing and discharging residues according to the present invention;

rice. 7 - Schematic representation of the construction of the brew head after pressing and discharging residues according to the present invention;

rice. 8 is a front view of the brew head after completion of the brew press according to the present invention;

rice. 9 is a side view of the brew head after completion of the brew pressing according to the present invention;

rice. 10 is a front view of the brew head in upward movement according to the present invention;

rice. 11 is a side view of the brewing chamber according to the present invention;

rice. 12 is a sectional view of the first motor driving the brew head in an upward direction through the screw according to the present invention;

rice. 13 is a sectional view of the first motor driving the brew head in a downward direction through the screw according to the present invention;

the brewing chamber provided by the present invention includes a brewing chamber body 4 rotatably disposed under the brewing unit, and the brewing chamber body 4 is provided with a brewing chamber 401 for brewing coffee. The brewing chamber body 4 is provided with a brewing chamber opening 402 for entering the brewing unit into the brewing chamber 401 for pressing the coffee powder in the brewing chamber 401 and pressuring the coffee brewing. The bottom of the brewing chamber 401 is provided with a groove 490 with an inner diameter smaller than the inner diameter of the brewing chamber 401, a coffee outlet 4.72 is provided on the side wall of the groove 490, and the coffee outlet 4.72 is connected to the outside by a through hole;

the bottom of the groove 490 is provided with a through hole 460, the axis of which coincides with the axis of the brewing chamber 401, the inner wall of the through hole 460 is provided with a coffee sealing ring 4.6, the upper end surface of the groove 490 is fixedly provided with a sealed water outlet 3.3, while the sealed water outlet 3.3 is provided with a coffee outlet 302 in communication with the coffee outlet 4.72, the filter portion 3.2 for filtering the coffee is located above the sealed water outlet 3.3;

the filter part 3.2 is provided with the first sliding hole 3.4, the sealed water outlet 3.3 is provided with the second sealing sliding hole 301, the coffee sealing ring 4.6 is provided with the third sealing sliding hole 470, the first sliding hole 3.4, the second sealing sliding hole 301 and the third sealing sliding hole 470 provided with an outlet that can slide in the axial direction along the through hole 460; the outlet is at least in sealing and sliding connection with the third sealing sliding hole 470.

Among them, the outlet part can slide up and down in the first sliding hole 3.4, the second sealing sliding hole 301, and the third sealing sliding hole 470 to perform operations such as coffee powder pressing and residue discharge, and the outlet part is at least connected to the third sealing sliding hole 470 in a sliding manner, which can prevent leakage of coffee powder or coffee liquid, the first sliding hole 3.4, the second sealing sliding hole 301 and the third sealing sliding hole 470 can be located on the same longitudinal axis, which can facilitate the sliding of the outlet part, which ensures its stability when sliding, as well as the absence of displacement. Coffee liquid can flow out through the coffee outlet 4.72 connected to the outside for drinking by users.

The brew chamber 401 is used to brew coffee. When coffee is brewed, the brew unit enters the brew chamber 401 through the brew chamber opening 402 to compress the coffee powder in the brew chamber 401 and apply brew pressure to the coffee to complete the brew. During the brewing process, the pressure in the brew chamber 401 will increase and the brewed coffee will drain down into the filter portion 3.2 through the coffee outlet 302 on the sealed water outlet 3.3.

The bottom of the body of the brewing chamber 4 provided by the present invention is provided with a groove 490, the bottom of the groove 490 is provided with a through hole 460, the through hole 460 is provided with a coffee sealing ring 4.6, the coffee sealing ring 4.6 has an internal sealing sliding joint. There is an outlet that can slide in the axial direction along the through hole 460, while the through hole 460 coincides with the axis of the brew chamber 401, and the outlet can move along the axis of the brew chamber 401, after brewing is completed, the outlet can discharge the coffee grounds remaining in brewing chamber 401, in preparation for the next brewing.

The brew chamber opening 402 is located at the top of the brew chamber body 4. Since the brew chamber body 4 can be rotated when coffee is to be brewed, it rotates until the brew chamber opening 402 aligns with the brewing unit for brewing, after brewing, the opening 402 rotates towards the outlet to align with the brewer, and the brewer pushes the outlet to discharge coffee residues.

The first sliding hole 3.4, the second sealing sliding hole 301 and the third sealing sliding hole 470 are provided with an outlet part that can slide in the axial direction along the through hole 460, and the outlet part passes through the first sliding hole 3.4, the second sealing sliding hole 301 and the third sealing sliding opening 470, when brewing coffee, only the coffee outlet 302 in the brewing chamber 401 communicates with the coffee outlet 4.72, while the coffee outlet 4.72 communicates with the outside when the outlet is in a sealed sliding connection with at least a third seal sliding hole 470, the through hole 460 at the bottom of the groove 490 is blocked, thereby preventing liquid from leaking during coffee brewing; in addition, since the sealed water outlet 3.3 is fixedly located on the upper end surface of the groove 490, it will not move when the outlet is moved, thereby preventing the sealed water outlet 3.3 from wearing out and increasing the internal pressure in the brewing chamber 401 when coffee is brewed.

Based on the above specific embodiment, the inner wall of the through hole 460 is provided with a radially inward convex fixed position seal, the coffee seal ring 4.6 is an I-shaped seal ring, and the I-shaped seal ring is clamped on the upper and lower surfaces of the fixed position seal. . It should be noted that the locking position of the second seal is annular and extends radially inward along the inner wall of the through hole 460 to form a locking ring. The I-ring seal includes an upper ring, a lower ring, and an intermediate cylinder connected to the upper ring and the lower ring. The inner diameters of the upper and lower rings are the same and correspond to the diameter of the intermediate cylinder. The middle through hole of the intermediate cylinder is the third seal sliding hole 470. The upper ring is located on the upper end surface of the intermediate cylinder, and the lower ring is located on the lower surface of the intermediate cylinder and has an I-shape on the side surface. The outer diameter of the intermediate cylinder corresponds to the inner diameter of the fixed place of the second seal. After the intermediate cylinder is installed in the fixed seal position, the upper ring is attached to the upper surface of the fixed seal position, and the lower ring is attached to the lower surface of the fixed seal position. The I-ring provided in this embodiment has better sealing performance and further prevents coffee from leaking out of the through hole 460.

Based on the above specific embodiment, the outlet part comprises an exhaust plunger 3 and an exhaust member located at the upper end of the exhaust plunger 3, the exhaust plunger 3 being at least connected to the third seal sliding hole 470 with a slide seal. It should be noted that the outlet element may be an outlet plate 3.1 or a bracket or screw post, the outlet plate 3.1 may be a diaphragm with a through hole on the surface of the plate, a predetermined distance can be set between the outlet element and the inner wall of the brewing chamber 401, which allows prevent wear of the outlet member against the inner wall of the brewing chamber 401 during unloading. The outlet element is located next to the top of the filter part 3.2 to accommodate the coffee grounds.

Based on the above specific embodiments, the filter part 3.2 is a metal or plastic filter, the sealed water outlet 3.3 is made of silicone or rubber, and the coffee sealing ring 4.6 is a silicone or rubber part. It should be noted that the first sliding hole 3.4 does not need to be sealed, so metal parts with higher hardness and longer service life or plastic parts with lower cost and lower quality can be used, while the second sealing sliding hole 301 and the third sealing sliding hole 470 must be sealed, so it is necessary to choose silicone or rubber parts with a certain elasticity. In addition, the 3.3 airtight water outlet can be made of silica gel or rubber, which has good sealing performance, stable performance, and no corrosion.

Based on the above specific embodiments, the coffee outlet 302 is located on one side of the second seal slide hole 301, or the coffee outlet 302 is located on the second seal slide hole 301. It should be noted that when the coffee outlet 302 is located on one side of the second seal slide sliding hole 301, the sealed water outlet 3.3 is provided with two holes, the second sealing sliding hole 301 is a shaft hole machined in the axial direction of the sealed water outlet 3.3, the coffee outlet 302 is located in other parts of the sealed water outlet 3.3 and does not overlap with the second seal slide hole 301. When the coffee outlet 302 is located on the second seal slide hole 301, the coffee outlet 302 and the second seal slide hole 301 are are placed in the axial direction of the sealed water outlet 3.3, and the two holes are aligned.

The present invention also provides a coffee machine that includes a housing in which the brewing chamber is located in accordance with any of the above embodiments. When the brew chamber of any of the aforementioned embodiments is provided in the housing, sealing during coffee brewing can be improved, and leakage of liquid during coffee brewing can be prevented.

Since the structure for discharging residues in the coffee powder dispensing system in the prior art is too complicated, it is not suitable for use in conventional coffee machines, and the coffee machine is expensive, which is not conducive to popularization. In addition, in other types of coffee machines for removing coffee grounds, a device for hanging coffee plates or a device for spraying water is additionally provided, which is also complicated and expensive.

Based on the above drawbacks and based on the above embodiment, as a further optimization, the brewing unit includes a brewing head 1.9 which can move up and down in the body, the brewing chamber body 4 is rotatably located under the brewing head 1.9, and the upper part the brewing chamber body 4 is provided with a brewing chamber opening 402, the diameter of which corresponds to the diameter of the brewing head 1.9, the lower part of the brewing chamber body 4 is provided with an outlet part, which is in close contact with the side wall of the brewing chamber body 4 and can move along the brewing chamber body 4; the brewing head 1.9 is connected to the first power section to drive the brewing head 1.9, and the brewing chamber body 4 is connected to the second power section to drive the brewing chamber body 4; when coffee is brewed, the second power section rotates the brewing chamber body 4 so that the opening of the brewing chamber 402 is opposite the brewing head 1.9, and the brewing head 1.9 moves down under the drive of the first power section and extends into the brewing chamber body 4 to provide sealing for pressing coffee powder and creating pressure when brewing coffee in the body of the brewing chamber 4; when discharging the coffee residues, the second power part drives the brew chamber body 4 in the opposite direction, so that the outlet is opposite the brew head 1.9, while the brew head 1.9 moves down, driven by the first power part, pushing the outlet down, thus , the outlet part pushes the coffee grounds in the brew chamber body 4 to be discharged from the opening of the brew chamber 402.

Among them, the case is a holder used to attach the brew head 1.9, the brew chamber body 4 and other components of the coffee machine. The specific shape and size must be selected according to the size of each installed part, the 1.9 brew head can move up and down driven by the first power part, both can be directly connected by bolts and other components, or indirectly connected by cranks and other components, as long as the brew head 1.9 can move up and down, the brew head 1.9 needs to go into the opening of the brew chamber 402 to pierce the coffee in the body of the brew chamber 4, so the brew head 1.9 is usually compatible with the brew chamber. A cylindrical brew head that matches the opening diameter of the brew chamber 402 may be made from materials such as plastic.

It should be noted that the body of the brewing chamber 4 can be driven and rotated by the second power section. In particular, the brewing chamber body 4 can be turned upside down, that is, the opening of the brewing chamber 402 in the upper part of the brewing chamber body 4 can be rotated from top to bottom, and the outlet part located in the lower part of the brewing chamber body 4 can be rotated from bottom to top, purpose This design is to make it easier for the brew head 1.9 to directly push the coffee grounds discharge outlet into the brew chamber body 4.

The coffee machine according to the present invention is provided with a brew head 1.9 which can move up and down under the action of the first power part, and a rotating brew chamber body 4, the diameter of the brew head 1.9 corresponds to the diameter of the opening of the brew chamber 402 of the body of the brew chamber 4, which can pass into the opening 402 of the brew chamber chamber and is in close contact with the side wall of the brew chamber body 4, to create brewing pressure on the coffee in the brew chamber body 4, so that the coffee powder is completely mixed with hot water. At the same time, after the completion of coffee brewing, a certain amount of coffee residue remains in the body of the brewing chamber 4. At this time, the second power part simply needs to actuate the body of the brewing chamber 4 in the opposite direction. The outlet part in the lower part of the body of the brewing chamber 4 rotates from the lower part of the body to the upper part, opposite the position of the head 1.9. Since the outlet part is in close contact with the side wall of the brewing chamber body 4, the outlet part can be considered as the bottom plate of the brewing chamber body 4, so an additional bottom plate is not required, which reduces the cost, while the outlet part can move along the brewing chamber body 4. The brew head 1.9 moves down to press the outlet part, and the outlet pushes down the coffee grounds remaining on the side wall of the brew chamber body 4 and other positions, and discharges it from the opening of the brew chamber 402 located under the body at this time.

The coffee machine provided by the present invention realizes the closed coffee brewing and residue discharging operation by installing the brew head 1.9 and the brewing chamber rotating body 4 with the outlet at the bottom, the brewing and remaining discharging switching operation only requires the rotation of the brewing chamber body 4. The operation is simple and convenient. , the overall structure is simple, the production cost is low, and no additional components are required to discharge the residue.

The outlet part includes an outlet pusher 3 and an outlet element located at the upper end of the outlet pusher 3. The lower part of the outlet pusher 3 is rigidly connected to the pressure plate 4.3, and the pressure plate 4.3 is connected to the outer wall of the body of the brewing chamber 4 through the connected elastic element, one the end of the elastic element rests against the lower end surface of the through hole 460, the other end rests against the pressure plate 4.3, the outlet element is attached to the upper part of the filter part 3.2 by means of the elastic element, the brewing head 1.9 pushes the pressure plate 4.3 down, setting it in motion. The outlet element moves down to remove the coffee grounds, and the elastic element is used to actuate the pressure plate 4.3 to return to its original position after the residue has been discharged.

It should be noted that the outlet part includes the outlet plunger 3 and the outlet element, which is located on top of the outlet plunger 3 and corresponds to the diameter of the brewing chamber body 4. The lower part of the outlet plunger 3 is connected to the pressure plate 4.3, which is used to contact the brew head 1.9. The brew head 1.9 pushes the pressure plate 4.3 down to push the outlet down to release the coffee grounds.

It is clear that some of the coffee residues may remain on the side wall of the brew chamber body 4, so the outlet element is installed in accordance with the diameter of the brew chamber body 4, usually a round plastic plate. As the outlet moves down, coffee residue on the side wall of the brew chamber body 4 can be scraped off to cause it to pour down through the brew chamber opening 402. The bottom of the outlet pusher 3 is connected to the pressure plate 4.3. The area of the pressure plate 4.3 is larger than that of the outlet pusher 3. The purpose of installing the pressure plate 4.3 is to improve the contact area between the brew head 1.9 and the outlet, in order to ensure that the brew head 1.9 moves smoothly for smooth movement of the outlet. it is also possible to use an exhaust rack and other structures to replace the exhaust part. The specific shape of the structure of the outlet part is not limited to the above method, and the user can flexibly adjust it according to the actual situation.

In particular, the brewing unit includes a brewing chamber body 4, a support cover 4.1, a handle 4.2, and a slag discharge portion 55. The brewing unit is provided with at least a brewing chamber body 4, a slag discharge portion 55. On the longitudinal axis K of the brewing chamber body 4, a brew chamber 401 is provided, the brew chamber 401 is provided with a brew chamber opening 402, the bottom of the brew chamber 401 is provided with a through hole 460, and the bottom is provided with a coffee outlet 4.72, the coffee outlet 4.72 is provided with a liquid outlet pipe 4.7 extending from the outside. The bottom of the brew chamber body 4 is provided with a downward outlet 2.10, a first brew head movement micro switch 2.11 and a second brew head movement micro switch 2.12 to control the up and down movement of the brew head 1.9.

The elastic part is a return spring 4.4, and the lower end of the exhaust pusher 3 is connected to the pressure plate 4.3 through the middle hole 403 of the return spring 4.4. The return spring 4.4 is a coil spring. The spring with this design has a lower cost and is easy to disassemble.

In a specific embodiment of the first power section, the first power section includes a first motor 1 and a convex drive crank 1.3 connected to the rotating shaft of the first motor 1. The oscillating part 1.33 on the top of the drive crank 1.3 is rotatably connected to the top of the brew head 1.9 via rocking link 1.7, so that the brew head 1.9 moves along a linear channel 2.6 located in the body.

Among them, the first motor 1 may be a DC motor, an asynchronous motor, a synchronous motor, etc. commonly used in the prior art. The shaft of the first motor 1 is connected to one end of the driving crank 1.3 with bolts and other parts to drive the swinging part 1.33 on the top of the driving crank 1.3, that is, with the rod body on the convex top, the distance between the turning part 1.33 and the highest and the most the low point is the distance that the brew head 1.9 can move up and down. Because the rocker 1.33 has a rotational transverse offset to ensure that the movement of the brew head 1.9 is linear, the rocker 1.33 is connected to the top of the brew head 1.9 through the rocker 1.7, while the rocker 1.7 rotates together with the rocker 1.33, however, the movement brew head 1.9 through the linear channel 2.6 located in the body will not be affected.

Specifically, the first motor 1 is rotatably connected to the driving crank 1.3, and the first bearing 1.2 and the second bearing 1.6 are respectively provided at both ends of the driving crank 1.3 to be rotatably connected to the brewing bracket 2, and the first motor 1 is connected to the driving crank through adapter 1.1. One end of the driving crank 1.3 is driven, and the drive position of the microswitch 1.11 is designed to control the first motor 1. The other end of the driving crank 1.3 is fixed and connected to the brewing bracket 2 through the locking block 1.5, while the swing position in the middle of the driving crank 1.3 is rotated to connect the swing link 1.7, the upper part of the swing link 1.4 connects the driving crank 1.3 to the top part of the swing link 1.7 for positioning and rotating and driving the driving crank 1.3. The first rotary shaft 1.8 is connected to the brew head 1.9 in rotation, and the rocking link 1.7 makes the brew head 1.9 move up and down in the brew chamber 401, and controls the outlet pusher 3 to expand and contract to remove residues.

Or, as a second preferred solution, the rotation shaft of the first motor 1 and the top of the brew head 1.9 are connected and driven by the screw 901, so that the brew head 1.9 moves along a linear channel 2.6 located in the housing provided, while the brew head is provided with an inlet and the brewing bracket 2 is provided with a sliding groove 904 that matches the length of the screw 901 and coincides with the water inlet 903 or slide protrusion.

It should be noted that the sliding groove 904 is located on the outer wall of the brewing bracket 2, the opening direction of the sliding groove 904 corresponds to the opening direction of the brewing chamber 402, and the water inlet 903 for water or the protrusion on the brew head 1.9 can be slidably positioned in the sliding groove 904 along the longitudinal direction of the sliding groove 904. When the screw 901 is rotated to drive the brew head 1.9, the brew head 1.9 easily rotates together with the screw 901. The brew head 1.9 is provided with a water inlet 903 or a protrusion to prevent displacement of the brew head 1.9. in the brew chamber 401, so that the brew head 1.9 is driven by the screw 901 and only moves in a straight line.

The drive position of the micro switch 1.11 is set on both sides of the rotating shaft of the first motor 1 to control the left and right angle of rotation of the rotating shaft of the first motor 1. The brew head 1.9 moves the position 1.11 through the micro switch to control the distance of movement of the brew head up and down 1.9. In particular, the brew head 1.9 is provided with a screw hole 902 in the direction of the linear channel 2.6, and the screw 901 is screwed into the screw hole 902. move along the linear channel 2.6.

The bottom of the brewing chamber 401 is provided with a feed opening 2.7, the longitudinal axis M is set vertically or obliquely, the brewing bracket 2 is provided with a positioning rotary hole 2.8 on the transverse axis H, and the transverse axis H is installed horizontally or obliquely. The slag discharge part 55 is provided with at least an exhaust pusher 3, and the exhaust pusher 3 is provided with an exhaust element, a filter part 3.2, an exhaust element, a sealed water outlet 3.3, a coffee sealing ring 4.6, a return spring 4.4 and a pressure plate 4.3. The slag discharge part 55 is located on both sides of the through hole 460 of the brewing chamber 401 of the brewing chamber body 4, the outlet plunger 3 is slidably connected in the through hole 460 or the coffee sealing ring 4.6, and the outlet member on the outlet plunger 3 is clamped and connected to the pressing plate 4.3, filter part 3.2, sealed water outlet 3.3, coffee sealing ring 4.6 and return spring 4.4; alternatively, the outlet on the outlet pusher 3 and the pressure plate 4.3 clamp and connect the filter part 3.2, the sealed water outlet 3.3 and the return spring 4.4; the outlet member is fixed on the top of the outlet plunger 3, and the outlet plunger 3 passes successively through the first sliding hole 3.4 on the inner filter portion 3.2 of the brewing chamber 401, the second sealing sliding hole 301 on the sealed water outlet 3.3, and the through hole 460 on the bottom of the brewing chamber 401. The return spring 4.4 is rigidly connected to the pressure plate 4.3; the filter part 3.2 is installed at the top of the sealed water outlet 3.3, and its upper part is screwed and rigidly fixed at the bottom of the brewing chamber 401, which is located on the coffee outlet 4.72 and the coffee sealing ring 4.6 at the top of the bottom of the brewing chamber 401 The filter part 3.2 is sealed and connected to the brewing chamber 401 through the side or bottom of the sealed water outlet 3.3, and the through hole 460 is combined with or separated from the coffee sealing ring 4.6. The middle through hole passes through the outlet pusher 3, the outer teeth 4.71, the coffee outlet 4.72 and the liquid outlet tube 4.7 are installed on the transverse axis H, for rotation and connection with the brewing bracket 2. The support cover 4.1 rotates and locks the infuser in the chamber 2.9 , turns the liquid outlet tube 4.7 of the brewing unit into the first socket 2.13, the second socket 2.41 and the third socket 2.42, in succession, the body of the brewing chamber 4 enters the inside of the chamber 2.9, the support cover 4.1 is enclosed in the first socket 2.13, the support cover 4.1 is fixedly equipped with a handle 4.2, the drive and buckle 2.14, locking connection and connection for concentric positioning; the support cover 4.1 is fixed and rotatably connected to the body of the brewing chamber 4; the housing is provided with a brewing chamber position switch assembly 2.2 for positioning the brewing chamber body 4.

Preferably, the filter part 3.2 has a filter hole 3.5, the first sliding hole 3.4 and a fixed position, the first filter hole 3.4 is located in the middle, the filter hole 3.5 is located on the periphery of the first sliding hole 3.4, and the filter hole 3.5 is flared around the periphery to prevent deformation; the sealed water outlet 3.3 is provided with a second seal sliding hole 301 and the coffee outlet 302, and the sealed water outlet 3.3 is provided with at least a coffee outlet 302, the coffee outlet 302 being a pressure maintaining device with pin hole. The filter part 3.2 and the sealed water outlet 3.3 are aligned and hermetically sealed. A gap is provided between the filter part 3.2 and the sealed water outlet 3.3 to facilitate the flow of coffee liquid, and a gap is provided between the coffee outlet 302 and the bottom of the brewing chamber 401 to facilitate the flow of coffee liquid, the second sealing sliding hole 301 is connected to the upper and lower sliding exhaust pusher seal 3; the pressure plate 4.3 is installed on the surface of the arc, which corresponds to the outer surface of the arc of the horizontal axis H of the body of the brewing chamber 4. The pressure plate 4.3 is equipped with the axis of rotation of the pressure plate 4.5 and the return spring 4.4. installed in the form of a tower to reduce the distance in the compression space. The pressure plate 4.3 is provided with a pressure plate rotation shaft 4.5, as a result, the brew head 1.9 can push out the coffee grounds when the pressure plate 4.3 rotates, and the pressure plate rotation shaft 4.5 is connected to the brew head 1.9 to reduce friction.

Preferably, the water inlet 1.91 is fully connected to the brewing chamber 401 through the shunt cover, the water inlet 1.91 is fully connected to the ventilation tube 1.20, the bottom of the brewing chamber 401 is provided with a coffee outlet 4.72, the coffee outlet 4.72 passes through the liquid outlet pipe 4.7, and the liquid outlet tube 4.7 passes through the outer part.

To ensure that the brew head 1.9 does not move when brewing coffee, in a specific embodiment, the housing is provided with a stop block 1.5 to limit the rotation of the drive crank 1.3, while the stop block 1.5 is installed on the rotation path of one side of the drive crank 1.3 to prevent movement of the brew head 1.9 up or swing under the action of hot water in the body of the brewing chamber 4 when water enters.

Among them, the locking block 1.5 is generally provided with only one part, and the rotation path of one side of the driving crank 1.3 is set to ensure that when the brew head 1.9 is to be moved up, the driving crank 1.3 can rotate the other way to the highest point. In particular, the turning distance 1.33 of the crank 1.3 is the distance that the brew head 1.9 moves up and down, that is, the coffee powder moves down to be pressed, so that the resistance of the water flow barrier created when the coffee powder is brewed is converted into water pressure. An oscillating link 1.7 is installed between the drive crank 1.3 and the brew head 1.9 to control the brew head 1.9 for linear movement limited in the linear channel 2.6, reducing the turning distance and opening the brew chamber 402 for precise seat positioning. The lower rotation guide of the oscillating part 1.33 is provided with a bent rod blocking part 1.51, and the bent rod blocking part 1.51 is located on the axis B to block the oscillating part 1.33, thereby causing the brewing chamber 401 to generate a brewing pressure that is not less than ten atmospheres or ten pascals. The B-axis is set in the forward rotation direction of the driving crank 1.3, and the A-axis is pressed by the center of the driving crank 1.3, forming an adjacent angle C. Among them, the A-axis is the concentric axis between the head 1.9 and the driving crank 1.3, the B-axis is the axis of the blocking position of the driving crank , and the angle c is the angle between axis A and axis B, which regulates the generated water pressure through the water inlet 1.91 to avoid rebound, and pushes the brew head 1.9 to move upwards to ensure constant positioning and holding pressure of the brew head 1.9, which solves the problem that the central axis of the driving crank 1.3 does not oscillate about the A-axis or is pushed up due to the rebound water pressure on the A-axis, the brewing chamber 401 cannot be sealed, and the bent part of the crank rod 1.51 lock is, at least half the length of the oscillating part 1.33, or these two and the sizes are the same.

To ensure that the locking block 1.5 can play a blocking role, in this particular embodiment, the width of the bent portion of the locking rod 1.51 on the locking block 1.5 to contact the oscillating part 1.33 is at least half the width of the oscillating part 1.33.

It is clear that the larger the width of the bent part of the locking rod 1.51 on the locking block 1.5, the larger the contact area with the oscillating part 1.33 and the greater the blocking force on the oscillating part 1.33 to ensure that the brewing head 1.9 is positioned stably and does not move upward under the action of water pressure. .

In order to reduce the amount of bubbles generated during coffee brewing and improve the taste of the coffee, in this particular embodiment, the brew head 1.9 is provided with a purge tube 1.20 that extends in the axial direction of the brew head 1.9, and a buoyancy steam valve 1.30 is located below the purge tube 1.20, which can float with the hot water in the brew chamber body 4. When the water vapor in the brew chamber body 4 is vented from the purge tube 1.20, the buoyancy steam valve 1.30 floats with the hot water in the brew chamber body 4, blocking the purge tube 1.20.

In particular, the brew head 1.9 moves down and connects with the brew chamber 401 through the movable sealing ring 1.10, the water inlet 1.91 is filled with water and steam, part of the steam is released through the vent tube 1.20, after the steam is released, the hot water pushes the steam buoyancy valve 1.30 up, f the front inlet of the purge tube 1.20 is closed, while the purge tube 1.20 has an outlet and a drain function. Hot water enters the brewing chamber 401 through the coffee powder brewing shunt cover, the coffee solution flows out through the coffee outlet 302 on the sealed water outlet 3.3 for water, and the coffee sealing ring 4.6 on the body of the brewing chamber 4 is hermetically connected to the outlet pusher 3. Coffee outlet 4.72 is the only outlet for coffee liquid; the brew head 1.9 moves up and the brew chamber 401 releases the sealed connection, and at the same time the buoyancy steam valve 1.30 moves down to let air in. The brew head 1.9 will not create suction and negative pressure to move up and separate from the opening of the brew chamber 402. Based on the above specific embodiments, the pressure plate 4.3 is an arc pressure plate with the hole facing the direction of the outlet pusher 3, and on the surface of the arc pressure plate, several rotation shafts of the pressure plate 4.5 are provided for contact with the brewing head 1.9.

It is understood that the curved pressure plate used in the pressure plate 4.3, on the one hand, conforms to the structural shape of the brewing chamber body 4 and is convenient for placement. On the other hand, it is also convenient that the arcuate pressure plate is in contact with the brew head 1.9 when it rotates to different positions, and several rotation shafts of the pressure plate 4.5 are arranged on the arcuate pressure surface. The rotating shaft 4.5 of the pressure plate can rotate in contact with the brew head 1.9 to reduce the friction between the pressure plate 4.3 and the brew head 1.9 and prolong the service life. In addition to the rotating pressure plate shaft 4.5, a rotating wheel design can also be used.

In this particular embodiment, the filter portion 3.2 is firmly connected to the upper end surface of the groove 490 with a first buckle, screw, or strong pressure. The filter part 3.2 is fixed to filter the coffee grounds to prevent the filter part 3.2 from being shaken or dropped by the water flow.

It will be understood that due to the lack of a fixed connection between the outlet and the brew head 1.9, the brew head 1.9 can only push the outlet down and cannot move it up to return to its original position. To solve this problem, in this particular embodiment, the pressure plate 4.3 is connected to the outer wall of the body of the brewing chamber 4 through an elastic member to actuate the pressure plate 4.3 after the completion of the slag discharge to return to the original position.

When the brew head 1.9 pushes the outlet element down, the elastic element is stretched. When the brew head 1.9 moves upward and releases contact with the pressure plate 4.3, the elastic member drives the pressure plate 4.3 to return to its original position under its own position of elastic restoring force, that is, the outlet member returns to the upper end surface of the groove 490. The elastic the part can be a 4.4 recoil spring or a Z-shaped shrapnel.

When the filter portion 3.2 is bolted to the upper end face of the groove 490, the filter portion 3.2 is provided with a first threaded hole, the pressurized water outlet 3.3 is provided with a second threaded hole, and the upper end face of the groove 490 is provided with a third threaded hole. The threaded holes, the filter part 3.2 and the sealed water outlet 3.3 are fixed on the upper end surface of the groove 490 through the first threaded hole, the second threaded hole and the third threaded hole with bolts. It should be noted that the filter part 3.2 is used to isolate the remaining coffee grounds after dissolving the filtered coffee powder. The filter part 3.2 is pressed with bolts to press the sealed water outlet 3.3 on the upper end surface of the groove 490, if the filter portion 3.2 or the sealed water outlet 3.3 needs to be replaced, it can be easily disassembled

In a specific embodiment of the second power section, the second power section includes a second motor 6 located on a fixing support 2.4 and a liquid outlet tube 4.7 connected to the rotating shaft of the second motor 6 through a toothed part. The liquid outlet tube 4.7 is rigidly connected to the body of the brewing chamber 4 and is located on the axis of the body of the brewing chamber 4.

In particular, the brew head 1.9 is provided with a purge tube 1.20, an O-ring 1.10 and a shunt cap. The brewing bracket 2 is provided with an upwardly directed linear channel 2.6 on the longitudinal axis M, the linear channel 2.6 is provided with a delivery port 2.7 on the side, the longitudinal axis M is set vertically or obliquely, the horizontal axis H of the brewing bracket 2 is provided with a positioning rotary hole 2.8, the transverse axis H is horizontal or oblique, the gear tube 2.3 and the positioning rotary hole 2.8 are coaxial and concentric. The liquid outlet pipe 4.7 enters the first socket 2.13, the second socket 2.41, the third socket 2.42, the fixing support 2.4 and the brewing bracket 2 connect the clamping tube of the transmission gear 2.3 with the positioning rotary hole 2.8 of the brewing bracket 2 and the third socket 2.42 of the fixing support 2.4 for rotation and connections, the outer teeth 4.71 on the outlet tube of the liquid outlet 4.7 are connected to the inner gauge teeth 2.31 on the transmission gear 2.30 for rotation, and the transmission gear 2.30 is connected to the gear 2.5 of the second motor 6.

Preferably, the outlet pusher 3 and the main body pressure plate 4.3 are rigidly connected, and the brewing chamber body 4 is rotated through the outer teeth 4.71 or the liquid outlet tube 4.7 to realize the opening of the opening of the brewing chamber 402 opening up or down. When the opening 402 of the brewing chamber is opened down and the pressure plate 4.3 is directed upwards, the brewing head 1.9 pushes the pressing plate 4.3 to move down, the outlet pusher 3 moves down, and the coffee powder is pushed out of the brewing chamber 401. The brewing head 1.9 is lifted out of the brewing chamber 401 , and the return spring 4.4 automatically resets the exhaust pusher 3 and the exhaust element to the lower position of the brewing chamber 401.

Each embodiment in this description is described step by step, and each embodiment focuses on differences from other embodiments. The same and like parts of each embodiment may be related to each other.

The coffee machine and its brewing chamber provided by the present invention have been described in detail above. Specific examples are used in this article to illustrate the principles and implementation of the present invention. The description of the above examples is used only to help understand the method and the main ideas of the present invention. It should be noted that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications may be made to the present invention, and such improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (16)

1. A brewing chamber comprising a brewing chamber body (4) rotatably located below the brewing unit, provided with a brewing chamber (401) and a brewing unit for entering the brewing chamber (401) to press the coffee powder in the brewing chamber (401) and create brewing pressure for coffee, wherein the bottom of the brewing chamber (401) is provided with a groove (490) with an inner diameter smaller than the inner diameter of the brewing chamber (401), and on the side wall of the groove (490) there is a coffee outlet (4.72) , connected to the outer side by a through hole, characterized in that at the bottom of the groove (490) there is a through hole (460), the axis of which coincides with the axis of the brewing chamber (401), the inner wall of the through hole (460) is provided with a coffee sealing ring (4.6) , on the upper end surface of the groove (490) a sealed water outlet (3.3) is rigidly mounted, while the sealed water outlet (3.3) is equipped with a coffee hole (302) communicating with the coffee hole (4.72) and a filtering part (3.2) for filtering the coffee above the sealed water outlet (3.3); the filter part (3.2) is provided with a first sliding hole (3.4) and the sealed water outlet (3.3) is provided with a second sealing sliding hole (301), the coffee sealing ring (4.6) is provided with a third sealing sliding hole, the first sliding hole (3.4) , the second seal sliding hole (301) and the third seal sliding hole (470) are provided with an outlet part that can slide in the axial direction along the through hole (460); the outlet part is in tight sliding connection with the third sealing sliding hole (470). 2. The brewing chamber according to claim 1, characterized in that the inner wall of the through hole (460) is provided with a radially inwardly protruding sealing position for fixing the sealing element, and the coffee sealing ring (4.6) is made in the form of an I-shaped sealing ring on the top and the bottom surfaces of the seal for fixation. 3. The brewing chamber according to claim. 2, characterized in that the outlet part includes an outlet plunger (3) and an outlet element located at the upper end of the outlet plunger (3), the outlet plunger (3) is in a tight sliding connection with the third sealing sliding hole (470). 4. Brewing chamber according to claim 3, characterized in that the filter part (3.2) is a metal or plastic filter, the sealed water outlet (3.3) is made of silica gel or rubber, and the coffee o-ring (4.6) is made of silicone or rubber. 5. Brewing chamber according to claim 4, characterized in that the coffee outlet (302) is located on one side of the second sealing slide (301) and does not overlap with it, or the coffee outlet (302) is located on the second sealing slide hole (301) and aligned with it. 6. A coffee machine, including a housing, characterized in that it contains a brewing chamber placed in the housing according to any one of paragraphs. 1-5. 7. The coffee machine according to claim 6, characterized in that the brewing unit comprises a brewing head (1.9) located in the housing, which can move up and down, and the brewing chamber housing (4) is located rotatably under the brewing head (1.9), wherein the diameter of the brewing head (1.9) corresponds to the diameter of the opening (402) of the brewing chamber; the brewing head (1.9) is connected to the first power section to drive the brewing head (1.9), and the brewing chamber body (4) is connected to the second power section to drive the brewing chamber body (4); when coffee is brewed, the second power section rotates the brewing chamber body (4) so that the opening of the brewing chamber (402) is opposite the brewing head (1.9) and the brewing head (1.9) moves down and slides out into the brewing chamber body (4), actuated by the first power part, for pressing the coffee powder in the body of the brewing chamber (4) and creating pressure for brewing coffee; when the coffee grounds are discharged, the second power section drives the brew chamber body (4) in the opposite direction so that the outlet is opposite the brew head (1.9) and the brew head (1.9) moves down driven by the first power section so that push the outlet down so that the outlet pushes the coffee residues in the brew chamber (401) to be discharged through the opening of the brew chamber (402). 8. The coffee machine according to claim 7, characterized in that the outlet part contains an outlet pusher (3) and an outlet element located at the upper end of the outlet pusher (3), while the pressure plate (4.3) is rigidly connected to the lower part of the outlet pusher (3) ). The pressure plate (4.3) is connected to the outer wall of the brewing chamber body (4) through an elastic element, one end of the elastic element abuts against the lower end surface of the through hole, and the other end abuts against the pressure plate (4.3), the outlet element is attached to the filter part (3.2 ) through the elastic element at the top, the brew head (1.9) pushes the pressure plate (4.3) down, so that the outlet element moves down to discharge the coffee grounds, the elastic element is used to actuate the pressure plate (4.3) after the completion of the slag discharge to return to starting position. 9. Coffee machine according to claim 8, characterized in that the elastic element is a return spring (4.4), and the lower end of the outlet pusher (3) passes through the middle hole (403) of the return spring (4.4) and is connected to the pressure plate (4.3) . 10. The coffee machine according to claim 9, characterized in that the first power part contains the first motor (1) and a convex drive crank (1.3) connected to the rotating shaft of the first motor (1), the oscillating part (1.33) in the upper part of the drive crank ( 1.3) is rotatably connected to the top of the brew head (1.9) via a rocking link (1.7), so that the brew head (1.9) moves along a linear channel (2.6) provided in the body; or the rotating shaft of the first motor (1) and the top of the brew head (1.9) are driven by a screw (901) rotating so that the brew head (1.9) moves along a linear channel (2.6) located in the body, while the brew head ( 1.9) is actuated by a microswitch (1.11) to control the up and down movement distance of the brew head, and the brew head is provided with a water inlet or lip, the brewing bracket (2) is provided with a sliding groove (904) that matches the length of the screw (901) and matches the water inlet (903) or the sliding lug. 11. The coffee machine according to claim 10, characterized in that the body is equipped with a locking block (1.5) to limit the rotation of the drive crank (1.3), the locking block (1.5) is located on the rotation track of one side of the drive crank (1.3) to prevent movement or rocking brewing head (1.9) under the action of hot water in the brewing chamber body (4) when water enters. 12. The coffee machine according to claim 11, characterized in that the width of the bent part of the blocking of the rod (1.51) on the locking block (1.5) for contact with the oscillating part (1.33) is at least half the width of the oscillating part (1.33). 13. The coffee machine according to claim 12, characterized in that the brew head (1.9) is equipped with a purge tube (1.20) which extends in the axial direction of the brew head (1.9), and under the purge tube (1.20) there is a buoyancy steam valve (1.30), which can float together with the hot water in the brewing chamber body (4), when the water vapor in the brewing chamber body (4) exits the purge pipe (1.20), the buoyancy steam valve (1.30) floats together with the hot water in the brewing chamber body (4 ) blocking the purge tube (1.20). 14. Coffee machine according to claim 13, characterized in that the pressure plate (4.3) is an arcuate pressure plate with an opening facing towards the outlet pusher (3), and the surface of the arcuate pressure plate (4.5) is provided with a plurality of rotating shafts of the pressure plate for contact with brew head (1.9). 15. Coffee machine according to claim 14, characterized in that the filter part (3.2) is rigidly connected to the upper end surface of the groove (490) by means of a first buckle, screw or strong pressure. 16. The coffee machine according to claim 15, characterized in that the second power part contains a second motor (6) located on a fixing support (2.4) and a liquid outlet tube (4.7) connected to the rotating shaft of the second motor (6) through the toothed part , and the liquid outlet tube (4.7) is rigidly connected to the body of the brewing chamber (4) and is located on the axis of the body of the brewing chamber (4).

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