TWI659720B - Drink extraction apparatus - Google Patents

Abstract

A beverage extraction device includes a filter cup assembly and a brewing mechanism. The filter cup combination includes an outer filter cup and an inner filter cup. The bottom of the outer cup body of the outer filter cup has an outlet, and a check valve is provided at the outlet. The bottom of the inner cup body of the inner filter cup is provided with a filter screen and an inner cup. The top of the body is provided with a steam inlet, the inner cup of the inner filter cup is placed in the outer cup of the outer filter cup, a gap is formed between the inner cup and the outer cup, and a gap is provided between the inner cup and the outer cup. Vapor diffusion outlet. The brewing mechanism includes a cup holder, a panel holder and a control mechanism. The filter cup combination can be placed in the cup holder. The panel holder is disposed above the cup holder. The panel holder is provided with a soup steam inlet and a stirring steam inlet. And an exhaust outlet, a control mechanism is connected to the cup holder, which is used to control the cup holder to move up and down, so that the top of the filter cup combination can be sealed and opened. As a result, the beverage extraction effect is better, the beverage is more concentrated, the operation is simple, and the price is low.

Description

Beverage extraction device

The present invention relates to a beverage extraction device, and more particularly to a beverage extraction device suitable for infusion extraction of various food materials.

The traditional siphon coffee maker uses the water in the flask below to heat, and uses the boiling water vapor pressure to press the boiling water through the glass tube into the upper layer to make coffee. After the temperature is lowered, the lower layer has a similar vacuum state and can absorb the coffee brewed in the upper layer. The coffee grounds are filtered by the middle filter cloth, so the coffee brewed by the siphon coffee pot is generally incomparable with ground coffee brewed by machines. However, the traditional siphon coffee pot has the disadvantages of troublesome operation and requires experience to make good coffee.

Another type of semi-automatic siphon coffee machine uses the machine to enter the water, and the machine sends steam, pressurizes the water to the above brewing pot, and then manually places it into the coffee powder holder to start the brewing operation. Then release the pressure, the bottom pot will lose pressure and draw back the liquid from the upper pot. This completes the standard siphon cooking method, and the coffee can be taken off the valve of the lower pot. This kind of semi-automatic siphon coffee machine has the disadvantages of high price and troublesome operation.

In summary, the inventor feels that the above-mentioned defects can be improved. However, with intensive research and the application of scientific theory, he finally proposed a present invention with a reasonable design and effective improvement of the above-mentioned defects.

The technical problem to be solved by the present invention is to provide a beverage extraction device which can perform brewing, reheating and stirring. The beverage extraction effect is better and the beverage is more concentrated. And the operation is simple and the price is low.

In order to solve the above technical problems, the present invention provides a beverage extraction device, including: a filter cup assembly, the filter cup assembly includes an outer filter cup and an inner filter cup, the outer filter cup has an outer cup body, the outer cup The top of the body forms a first upper edge. The bottom of the outer cup body has an outlet. The outlet is provided with a check valve. When the inside of the filter cup assembly reaches a predetermined vapor pressure, the check valve can be opened. The filter cup has an inner cup body. The top of the inner cup body forms a second upper edge. The bottom of the inner cup body is provided with a filter screen. The top of the inner cup body is provided with a steam inlet. The inner cup of the inner filter cup The body is placed in the outer cup of the outer filter cup, the second upper edge is stacked on the first upper edge, a gap is formed between the inner cup and the outer cup, and the inner cup and the outer cup There is a vapor diffusion outlet between the bodies, the vapor diffusion outlet is in communication with the vapor inlet; and a brewing mechanism, the brewing mechanism includes a cup holder, a panel seat and a control mechanism, and the filter cup combination can be placed Into the cup holder, the first upper edge of the outer filter cup is placed on the cup holder, A panel seat is disposed above the cup holder. The panel seat is provided with a soup steam inlet, a stirring steam inlet, and an exhaust outlet, and the soup steam inlet, the stirring steam inlet, and the exhaust outlet are combined with the filter cup. The inside of the filter cup is connected to the steam inlet of the inner filter cup, and the control mechanism is connected to the cup holder to control the cup holder to rise and fall, so that the top of the filter cup assembly can be sealed and opened. Actions.

The beneficial effects of the present invention:

The beverage extraction device of the present invention includes a filter cup assembly and a brewing mechanism. The filter cup assembly is provided with a steam inlet, a steam diffusion outlet, and a filter screen. The outlet of the filter cup assembly is provided with a check valve. In this way, the steam exit of the brewing mechanism can spray a certain amount of hot water on the beverage ingredients in the filter cup assembly. The steam can be moved down through the steam inlet and the steam inlet through the steam diffusion outlet, and then enter the cup through the strainer. The steam can enter the cup with the effect of secondary heating and stirring, and the beverage extraction effect is better. Multiple brewing and soaking procedures to make the beverage richer. The steam can be input into the filter cup combination through the steam outlet of the soup. When the steam pressure inside the filter cup combination is greater than a predetermined value, the check valve is opened to output the soup. Therefore, it is not necessary to set a complicated soup control mechanism. The structure makes the operation simple and cheaper. In addition, the present invention uses a control mechanism to control the raising and lowering of the cup holder. The cup holder can drive the filter cup combination to rise, so that the top of the filter cup combination is closely attached to the panel seat to achieve the sealing effect. Therefore, it is not necessary to provide an upper cover to seal the filter cup combination. At the top, the structure can also be simplified.

In order to further understand the technology, methods and effects adopted by the present invention to achieve the intended purpose, please refer to the following detailed description and drawings of the present invention. It is believed that the purpose, features and characteristics of the present invention can be deepened and specific It is understood, however, that the drawings and attachments are provided for reference and description only, and are not intended to limit the present invention.

1‧‧‧ outer filter cup

11‧‧‧ Outer cup body

12‧‧‧ first top edge

13‧‧‧ exit

14‧‧‧Check valve

141‧‧‧Valve body

142‧‧‧Elastic piece

143‧‧‧ Closure

144‧‧‧channel

2‧‧‧Inner filter cup

21‧‧‧Inner cup

211‧‧‧Second card connection section

22‧‧‧ Second top edge

23‧‧‧ Filter

231‧‧‧Filter bezel

232‧‧‧The first card connection department

25‧‧‧Steam Import

26‧‧‧Vapor diffusion outlet

27‧‧‧ Clearance

28‧‧‧The first airtight rubber ring

29‧‧‧The second airtight rubber ring

3‧‧‧ cup holder

4‧‧‧ panel base

41‧‧‧outlet steam inlet

42‧‧‧ stirred steam inlet

43‧‧‧Exhaust outlet

44‧‧‧Hot water solenoid valve

45‧‧‧Outlet steam solenoid valve

46‧‧‧Stirred Steam Solenoid Valve

47‧‧‧Exhaust Solenoid Valve

5‧‧‧Control agency

51‧‧‧Support

511‧‧‧Side panel

52‧‧‧ connecting rod set

521‧‧‧Front Link

522‧‧‧Medium Link

523‧‧‧Rear Link

524‧‧‧Front shaft

525‧‧‧ rear hinge

53‧‧‧ Joystick

54‧‧‧ cam

55‧‧‧Guiding mechanism

551‧‧‧Guide Post

552‧‧‧Guide

100‧‧‧ filter cup combination

200‧‧‧ brewing mechanism

FIG. 1 is a perspective view of a beverage extraction device of the present invention.

FIG. 2 is a perspective view of the beverage extraction device of the present invention from another angle.

FIG. 3 is a perspective view of a filter cup assembly according to the present invention.

FIG. 4 is a perspective view of the filter cup assembly according to another aspect of the present invention.

Fig. 5 is a sectional view of a filter cup assembly according to the present invention.

FIG. 6 is a perspective view of a cup holder and a control mechanism according to the present invention.

Fig. 7 is a side view of a partial structure of a brewing mechanism according to the present invention.

FIG. 8 is a side view of another state of a partial structure of the brewing mechanism of the present invention.

FIG. 9 is a schematic view (1) of the use state of the beverage extraction device of the present invention.

FIG. 10 is a schematic diagram (2) of the use state of the beverage extraction device of the present invention.

FIG. 11 is a schematic view (3) of the use state of the beverage extraction device of the present invention.

FIG. 12 is a perspective view of another embodiment of a filter cup assembly according to the present invention.

[First embodiment]

Please refer to FIG. 1 and FIG. 2. The present invention provides a beverage extraction device, which includes a filter cup assembly 100 and a brewing mechanism 200. The filter cup assembly 100 includes an outer filter cup 1. And an inner filter cup 2 (as shown in Figs. 3 to 5).

The outer filter cup 1 has an outer cup body 11 with an open top. The outer cup body 11 is preferably but not limited to a circular shape. The top of the outer cup body 11 forms a first upper edge 12. The rim 12 may protrude from the outer edge of the outer cup body 11, and the first upper rim 12 may be horizontally arranged on the top of the outer cup body 11, and the first upper rim 12 may also be conical. The bottom of the outer cup body 11 has an outlet 13 provided with a check valve 14 which is closed under normal pressure. When the inside of the filter cup assembly 100 reaches a predetermined vapor pressure, the The check valve 14 can be opened to produce soup.

The structure of the check valve 14 is not limited. In this embodiment, the check valve 14 includes a valve body 141, an elastic member 142, and a closing member 143 (as shown in FIG. 5). A passage 144 is provided. The passage 144 can pass from the top to the bottom of the valve body 141, and the passage 144 can be used for discharging tea soup or coffee liquid. The elastic member 142 and the closing member 143 are disposed in the channel 144, and the elastic member 142 abuts the closing member 143, so that the closing member 143 elastically closes the channel 144. In this embodiment, the upper half and the lower half of the channel 144 form different inner diameters. The inner diameter of the upper half of the channel 144 is smaller than the inner diameter of the lower half of the channel 144. The elastic member 142 and the closing member 143 are disposed on In the lower half of the channel 144, the elastic member 142 abuts the closing member 143, so that the closing member 143 elastically closes the bottom of the upper half of the channel 144. When the predetermined steam pressure inside the filter cup assembly 100 is greater than the elastic force of the elastic member 142, the steam pressure can push the closing member 143 to move downward, and the channel 144 can be opened, so that the check valve 14 is opened for soup.

The inner filter cup 2 has an inner cup body 21 with an open top and a bottom. The inner cup body 21 is preferably but not limited to a circular shape. The top of the inner cup body 21 forms a second upper edge 22. The second upper edge 22 may protrude from the outer edge of the inner cup 21, and the second upper edge 22 may be horizontally arranged on the top of the inner cup 21, and the second upper edge 22 may also correspond to the first The upper edge 12 is of a conical shape, and the corresponding mating parts of the cup holder 3 and the panel base 4 also correspond to a conical shape. A filter screen 23 is disposed on the bottom of the inner cup body 21.

A steam inlet 25 is provided on the top of the inner cup 21, and a steam diffusion outlet 26 is provided on the outer edge of the inner cup 21. The steam diffusion outlet 26 may be recessed in the inner cup. On the outer edge of 21, the vapor diffusion outlet 26 is in communication with the vapor inlet 25, so that the vapor input from the vapor inlet 25 can be delivered to the vapor diffusion outlet 26. The vapor diffusion outlet 26 may extend to a position close to the bottom of the inner cup 21.

The inner filter cup 2 can be sleeved into the outer filter cup 1, and the inner cup body 21 of the inner filter cup 2 is placed in the outer cup body 11 of the outer filter cup 1. A gap 27 is formed between the inner cup 21 and the outer cup 11, and the vapor diffusion outlet 26 is also located between the inner cup 21 and the outer cup 11. The second upper edge 22 is stacked on the first upper edge 12, and a bottom of the second upper edge 22 of the inner filter cup 2 may be provided with a first airtight rubber ring 28, which is located on the second The upper edge 22 and the first upper edge 12 are used to increase air tightness.

With this, the steam can be diffused from the steam hole inlet 25 of the inner filter cup 2 to the surroundings through the steam diffusion outlet 26, and moved downward along the gap 27, and then enters the inner filter cup 2 through the screen 23 upward, and the steam enters the inner filter cup. 2 can have the effect of secondary heating and stirring. In another embodiment of the present invention, the vapor diffusion outlet 26 may be recessed on the inner edge of the outer cup 11 (not shown), so that the vapor diffusion outlet 26 is located between the inner cup 21 and the outer cup 11 , Also has the effect of secondary heating and stirring. The steam inlet 25 and the steam diffusion outlet 26 can also input hot water, and can also have the effects of secondary heating and stirring.

Please refer to FIGS. 1, 2, 5 to 8 together. The brewing mechanism 200 includes a cup holder 3, a panel base 4 and a control mechanism 5. The cup holder 3 can be used to carry the filter cup assembly 100. In this embodiment, the cup holder 3 is a U-shaped frame body, but the shape and structure of the cup holder 3 are not limited. When the filter cup assembly 100 is placed in the cup holder 3, the first upper edge 12 of the outer filter cup 1 can be placed on the cup holder 3, and the shape of the cup holder 3 can correspond to the size of the outer filter cup 1, so that the cup can be set. The rack 3 can bear the filter cup combination 100 tightly.

The panel seat 4 is disposed above the cup holder 3 for selective cover placement on the filter cup assembly 100, and a second airtight rubber ring 29 can be provided on the top of the second upper edge 22 of the inner filter cup 2. The second airtight rubber ring 29 is located between the second upper edge 22 and the panel base 4 (as shown in FIG. 5) to increase airtightness.

The panel base 4 is provided with a soup steam inlet 41, a stirring steam inlet 42 and an exhaust outlet 43, and the soup outlet steam inlet 41, the stirring steam inlet 42 and an exhaust gas The outlet 43 communicates with the inside of the filter cup assembly 100. The soup outlet steam inlet 41 is connected to a hot water solenoid valve 44 and a soup outlet steam solenoid valve 45. The soup outlet steam inlet 41 is also a brewing hot water inlet. The soup outlet steam inlet 41 can be connected to the boiler through a hot water solenoid valve 44. A water pipe is used to convey hot water to the steam exit 41 for soup. The soup outlet steam inlet 41 can be connected to the boiler steam pipe through the soup outlet steam solenoid valve 45 to transfer steam to the soup outlet steam inlet 41. The stirring steam inlet 42 is connected to a stirring steam solenoid valve 46. The stirring steam inlet 42 can be connected to a boiler steam pipe through the stirring steam solenoid valve 46, and is used to transfer stirring steam to the stirring steam inlet 42. The stirring steam inlet 42 corresponds to The steam inlet 25 of the inner filter cup 2. The exhaust outlet 43 is connected to an exhaust solenoid valve 47. When the exhaust solenoid valve 47 is opened, exhaust can be performed through the exhaust outlet 43.

The control mechanism 5 is connected to the cup holder 3 and is used to control the cup holder 3 to move up and down, so that the top of the filter cup assembly 100 can be sealed and opened. The structure of the control mechanism 5 is not limited. In this embodiment, the control mechanism 5 may include a support frame 51, two link groups 52, a control rod 53, and a plurality of cams 54. The cup holder 3 can be raised and lowered. On the support frame 51, two link groups 52 are disposed between the control lever 53 and the cams 54, and the cams 54 abut against the cup holder 3. Therefore, the two link groups 52 can be driven by the control lever 53 to transmit these The cams 54 are rotated, so that the cup holders 3 are pushed up by the cams 54, so that the top of the filter cup assembly 100 is in close contact with the panel base 4.

In this embodiment, the support frame 51 has two side plates 511. The two side plates 511 are spaced apart. The two side plates 511 can be fixed at a proper position, for example, can be fixed to the bottom of the panel base 4, and the cup holder 3 is provided on the support frame. A guide mechanism 55 is provided between the two side plates 511 of the 51 and between the cup holder 3 and the support frame 51 to guide the cup holder 3 to rise and fall stably. In this embodiment, the guide mechanism 55 includes multiple guide posts 551 and guide grooves 552. The guide posts 551 are provided on both sides of the cup holder 3, and the guide grooves 552 are provided on two sides of the support frame 51. On the side plate 511, the guide grooves 552 extend along the raising and lowering direction of the cup holder 3, and the guide posts 551 are slidably fitted in the guide grooves 552, which can be used to guide the stable raising and lowering of the cup holder 3.

The two link groups 52 are respectively disposed on both side plates 511 of the support frame 51. The link group 52 includes a front link 521, a middle link 522, and a rear link 523, and the front link 521 and the rear link The upper end of 523 is pivotally connected to the side plate 511 by a front rotating shaft 524 and a rear rotating shaft 525, respectively, so that the front link 521 and the rear link 523 can swing the front rotating shaft 524 and the rear rotating shaft 525 as the rotation axis, respectively. Both ends of 522 are pivotally connected to the lower ends of the front link 521 and the rear link 523, respectively. The control lever 53 is connected to the two link groups 52, that is, the control lever 53 can be connected to the front link 521 of the two link groups 52 so as to drive the two link groups 52 to move through the control lever 53.

The cams 54 are respectively connected to the front rotary shafts 524 and the rear rotary shafts 525, and the cams 54 can rotate synchronously with the front rotary shafts 524 and the rear rotary shafts 525. The cams 54 abut on the near sides of the bottom of the cup holder 3. When the user pulls the control lever 53 downward, it can drive the two link groups 52 to swing the front link 521 and the rear link 523 of the two link groups 52, and then drive the cams 54 to rotate in order to use the cams. 54 pushes the cup holder 3 to rise (as shown in FIG. 8), so that the top of the filter cup assembly 100 is in close contact with the panel seat 4 to achieve a sealing effect.

When the beverage extraction device of the present invention is in use, an appropriate amount of ingredients (such as coffee powder, tea, etc.) can be placed in the inner filter cup 2, and then the inner filter cup 2 is put into the outer filter cup 1, and the filter cup assembly 100 is placed in Place the cup holder 3, after confirming the positioning of the filter cup assembly 100, use the control mechanism 5 to control the cup holder 3 to rise, so that the filter cup assembly 100 is close to the panel holder 4, and the cover of the panel holder 4 is placed on the filter cup assembly 100 to make it airtight. . Next, by pressing the operation key of the beverage extraction device, the automatic control system opens the hot water solenoid valve 44, inputs a certain amount of hot water through the soup steam inlet 41 (as shown in FIG. 9), and then closes the hot water solenoid valve 44. When hot water is fed, the air squeezed out of the inner filter cup 2 can be exhausted by the exhaust outlet 43 and the opened exhaust solenoid valve 47, so that the filter cup assembly 100 is in a non-pressure or micro-pressure state, and the check valve 14 enables hot water Leave in the cup for the soaking procedure. Then, open the stirring steam solenoid valve 46, so that the steam enters from the stirring steam inlet 42 and the steam inlet 25 of the inner filter cup 2 (as shown in FIG. 10) and diffuses to the surroundings through the steam diffusion outlet 26, between the inner and outer filter cups. The gap 27 flows downward, and then flows upward through the filter screen 23 into the inner filter cup 2. The air in the squeezed cup is The opened exhaust solenoid valve 47 is discharged, and the steam enters the inner filter cup 2 with the effects of secondary heating and stirring, which makes the extraction of the ingredients easier, and the concentration and taste better.

Each brewing process of the beverage can be carried out by the automatic control system for multiple times of hot water feeding, stirring, soaking, and soup making, such as brewing 300cc tea, first 100cc hot water, soaking for 30 seconds, and then steaming for 10 seconds, Soak for another 20 seconds, make tea soup, and then add 100cc of hot water for a second time, soak for 20 seconds, stir for 10 seconds, soak for 20 seconds, immerse tea soup, enter 100cc of hot water for a third time, soak for 20 seconds, stir for 10 seconds, soak for 20 seconds Seconds, the tea soup to complete the tea brewing process.

The soup steam solenoid valve 45 and the stirring steam solenoid valve 46 can also be replaced by air solenoid valves. The air solenoid valve is connected to the air compressor to input high-pressure air for stirring or output tea soup.

The automatic control system outputs the appropriate amount of steam and closes the stirring steam solenoid valve 46. It can be set to continue soaking, or to drink tea, close the exhaust solenoid valve 47, open the soup steam solenoid 45, and input steam through the soup steam inlet 41. The pressure pushes the check valve 14 to open for soup discharge (as shown in FIG. 11). The invention can further connect the ordering machine (POS) in a wireless or wired manner, and the mobile phone, tablet or computer can be used to input operation procedures and the remote chain store headquarters or those who need to receive execution information.

[Second embodiment]

Please refer to FIG. 12. In this embodiment, the filter 23 is arranged on the bottom of the inner cup 21 in a combined manner. For example, a filter baffle 231 can be provided below the inner cup 21. 231 is in a ring shape. The filter baffle plate 231 is provided with a plurality of first engaging portions 232. The bottom of the inner cup body 21 is provided with a plurality of second engaging portions 211. The filter plate baffle 231 may be opposite to the inner cup body. The bottom of 21 is rotated, so that the first latching portions 232 and the second latching portions 211 are latched to each other, the filter baffle plate 231 is latched and fixed to the bottom of the inner cup 21, and the filter 23 is clamped. It is placed between the filter baffle plate 231 and the inner cup body 21, so that the filter screen 23 is combined and disposed on the bottom of the inner cup body 21. When it is necessary to remove the filter 23, the filter baffle 231 may be rotated in the opposite direction to separate the first clamping portions 232 and the second clamping portions 211, and the filter baffle 231 and the filter 23 may be Remove.

The features and functions of the present invention are:

The beverage extraction device of the present invention includes a filter cup assembly and a brewing mechanism. The filter cup assembly is provided with a steam inlet, a steam diffusion outlet, and a filter screen. The outlet of the filter cup assembly is provided with a check valve. In this way, the steam exit of the brewing mechanism can spray a certain amount of hot water on the beverage ingredients in the filter cup assembly. The steam can be moved down through the steam inlet and the steam inlet through the steam diffusion outlet, and then enter the cup through the strainer. The steam can enter the cup with the effect of secondary heating and stirring, and the beverage extraction effect is better. Multiple brewing and soaking procedures to make the beverage richer. The steam can be input into the filter cup combination through the steam exit steam inlet. When the steam pressure inside the filter cup combination is greater than a predetermined value, the check valve is opened to output the soup. Therefore, it is not necessary to set a complex soup control mechanism, which can simplify the structure and make Simple operation and lower price. In addition, the present invention uses a control mechanism to control the raising and lowering of the cup holder. The cup holder can drive the filter cup combination to rise, so that the top of the filter cup combination is closely attached to the panel seat to achieve the sealing effect. Therefore, it is not necessary to provide an upper cover to seal the filter cup combination. At the top, the structure can also be simplified.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of patent protection of the present invention. Therefore, any equivalent changes made using the description and drawings of the present invention are also included in the scope of protection of the present invention. Inside.

Claims (10)

A beverage extraction device includes a filter cup assembly including an outer filter cup and an inner filter cup. The outer filter cup has an outer cup body, and a top of the outer cup body forms a first upper edge. The bottom of the outer cup body has an outlet provided with a check valve. When the inside of the filter cup assembly reaches a predetermined vapor pressure, the check valve can be opened. The inner filter cup has an inner cup body. The top of the cup body forms a second upper edge. The bottom of the inner cup body is provided with a filter screen. The top of the inner cup body is provided with a steam inlet. The inner cup body of the inner filter cup is placed in the outer cup of the outer filter cup. In the body, the second upper edge is stacked on the first upper edge, a gap is formed between the inner cup body and the outer cup body, and a vapor diffusion outlet is provided between the inner cup body and the outer cup body, The steam diffusion outlet is in communication with the steam inlet; and a brewing mechanism, the brewing mechanism includes a cup holder, a panel seat and a control mechanism, the filter cup combination can be placed in the cup holder, and the external filter The first upper edge of the cup is placed on the cup holder, and the panel seat is disposed above the cup holder. The plate base is provided with a soup steam inlet, a stirring steam inlet, and an exhaust outlet, and the soup steam inlet, the stirring steam inlet, and the exhaust outlet communicate with the interior of the filter cup assembly, and the stirring steam inlet corresponds to The steam inlet of the inner filter cup is connected to the cup holder to control the cup holder to rise and fall, so that the top of the filter cup assembly can be sealed and opened. The beverage extraction device according to claim 1, wherein the first upper edge protrudes from the outer edge of the outer cup body, the first upper edge is arranged in a horizontal ring on the top of the outer cup body, and the second The upper edge protrudes from the outer edge of the inner cup body, and the second upper edge has a horizontal ring disposed on the top of the inner cup body. The beverage extraction device according to claim 1, wherein the check valve comprises a valve body, an elastic member and a closure member, a passage is passed through the valve body, and the elastic member and the closure member are disposed in the passage, The elastic member abuts the closure member, so that the closure member elastically closes the channel. The beverage extraction device according to claim 3, wherein the upper half and the lower half of the channel have different inner diameters, the inner diameter of the upper half of the channel is smaller than the inner diameter of the lower half of the channel, and the elastic member And the closing member is disposed on the lower half of the channel, the elastic member abuts against the closing member, so that the closing member elastically closes the bottom of the upper half of the channel. The beverage extraction device according to claim 1, wherein a bottom of the second upper edge of the inner filter cup is provided with a first airtight rubber ring, the first airtight rubber ring is located on the second upper edge and the first upper Between the edges, a second air-tight rubber ring is provided on the top of the second upper edge of the inner filter cup, and the second air-tight rubber ring is located between the second upper edge and the panel seat. The beverage extraction device according to claim 1, wherein the soup steam inlet is connected to a hot water solenoid valve and a soup steam solenoid valve, and the soup steam inlet can be connected to a boiler hot water pipe through the hot water solenoid valve for transportation Hot water to the soup steam inlet, the soup steam inlet can be connected to the boiler steam pipe through the soup steam solenoid valve, used to transport steam to the soup steam inlet, the stirring steam inlet is connected to a stirring steam solenoid valve, the stirring steam The inlet can be connected to the boiler steam pipe through the stirring steam solenoid valve to convey the stirring steam to the stirring steam inlet. The exhaust outlet is connected to an exhaust solenoid valve. When the exhaust solenoid valve is opened, it can pass through the exhaust gas. The outlet is vented. The beverage extraction device according to claim 1, wherein the control mechanism includes a support frame, two link groups, a control rod, and a plurality of cams, and the cup holder is arranged on the support frame to be raised and lowered. A lever set is disposed between the control lever and the cams, the cams abut against the cup holder, and the lever set can be used to drive the two link groups to drive the cams to rotate, and the cams are used to push the cup holder Raise it so that the top of the filter cup assembly is close to the panel base. The beverage extraction device according to claim 7, wherein the support frame has two side plates, the two side plates are spaced apart, the cup holder is disposed between the two side plates of the support frame, the cup holder and the support frame There is a guiding mechanism for guiding the cup holder to rise and fall. The beverage extraction device according to claim 8, wherein the two link groups are respectively disposed on both side plates of the support frame, and the link group includes a front link, a middle link, and a rear link. The upper ends of the connecting rod and the rear connecting rod are pivotally connected to the side plate with a front rotating shaft and a rear rotating shaft, respectively, and both ends of the middle connecting rod are pivotally connected to the lower ends of the front connecting rod and the rear connecting rod, respectively. A lever is connected to the two link groups, the cams are respectively connected to the front rotation shafts and the rear rotation shafts, and the cams can rotate synchronously with the front rotation shafts and the rear rotation shafts. The beverage extraction device according to claim 1, wherein the filter assembly is disposed on the bottom of the inner cup body.