CN115177152A

CN115177152A - Coffee extraction device and coffee extraction method

Info

Publication number: CN115177152A
Application number: CN202210913879.3A
Authority: CN
Inventors: 张文宇
Original assignee: Anhui Maker Food Co ltd
Current assignee: Anhui Maker Food Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-10-14
Anticipated expiration: 2042-08-01
Also published as: CN115177152B

Abstract

The invention discloses a coffee extraction device, which comprises a comprehensive plate, wherein a coffee placing cylinder and a supporting plate are embedded and installed on the front surface of the comprehensive plate, a top cover is placed on the top of the coffee placing cylinder, a controller is installed on the outer wall of one side of the comprehensive plate, a heating base plate is embedded and installed on the top of the supporting plate, a heat conduction container is movably installed on the top of the heating base plate, a limiting ring and an intercepting filter plate are installed on the inner wall of the coffee placing cylinder, a funnel air inlet pipeline is installed at the bottom of the coffee placing cylinder, and a transition pipe is installed at the top of the heat conduction container. The device can correspondingly drive the heat-conducting container to adjust the position up and down through the set electric telescopic rod so as to change the distance between the heat-conducting container and the coffee placing cylinder according to the use state of the heat-conducting container, when the distance between the heat-conducting container and the coffee placing cylinder is larger, the heat-conducting container can be conveniently taken out for cleaning, meanwhile, the device can effectively improve the extraction efficiency through a combined extraction mode of extrusion and siphon, and the heat-conducting container is convenient to inject water.

Description

Coffee extraction device and coffee extraction method

Technical Field

The invention relates to the technical field of coffee extraction, in particular to a coffee extraction device and a coffee extraction method.

Background

In the preparation process of coffee, extraction of coffee liquid is one of key factors determining taste of coffee, at present, the extraction process of coffee mainly comprises extraction of a coffee machine and extraction of hand brewing, wherein the extraction of the hand brewing mode is favored by more and more coffee enthusiasts due to flexibility of extraction parameter control, but each parameter of the extraction of the hand brewing mode is completely manually controlled, the requirement on the operating level of an operator is extremely high, and therefore an automatic extraction device convenient to control needs to be equipped.

The existing coffee extraction device has the defects that:

1. in the existing coffee extraction device, the extraction structure is mostly positioned in the space of the machine body, so that a container for storing coffee liquid is difficult to take out for cleaning, and after the container is used for a long time, the inner wall of the container is easy to have more residues, thereby influencing the taste of coffee extract liquid required later;

2. in the existing coffee extraction devices, the coffee liquid is extracted by adopting a mode of washing coffee powder with hot water, and in the mode, after the extraction of the coffee powder is finished, more effective components in the coffee powder still remain, and the overall extraction efficiency is low;

3. in the existing coffee extraction device, a water collecting tank body and the extraction device are mostly in an integrated assembly state, and after the water collecting tank body and the extraction device are combined, the whole structure of the extraction device is large, and meanwhile, the weight is heavy, so that the device is labor-consuming to carry, and is inconvenient to carry;

4. in the existing partial coffee extraction device, the user is required to manually inject purified water into the container, the outward spilling condition is easy to occur in the injection process, the integral cleanliness of the device is affected, and meanwhile, the operation steps of the user are increased, so that the operation is complicated.

Disclosure of Invention

The present invention is directed to a coffee extracting apparatus and a coffee extracting method, which solve the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the coffee extraction device comprises a comprehensive plate, wherein a coffee placing cylinder and a supporting plate are embedded in the front surface of the comprehensive plate, the supporting plate is positioned below the coffee placing cylinder, a top cover is placed at the top of the coffee placing cylinder, and a controller is installed on the outer wall of one side of the comprehensive plate;

heating pad is installed to the top gomphosis of layer board, heating pad's top movable mounting has the heat conduction container, coffee places the inner wall of a section of thick bamboo and installs spacing ring and interception filter plate, and the bottom of interception filter plate and the bottom laminating of spacing ring, coffee places the bottom of a section of thick bamboo and installs the funnel admission line, the transition pipe is installed at the top of heat conduction container, and the transition pipe is located the below of funnel admission line, the rubber ring is installed to the inner wall of transition pipe, coffee places the both sides of a section of thick bamboo and all installs the linkage plate, and is two sets of the top of linkage plate all runs through and installs electric telescopic handle, and the bottom of two sets of electric telescopic handle all laminates with the top of layer board.

As preferred, miniature servo motor is installed at the top of top cap, the threaded rod is installed to miniature servo motor's output, and the threaded rod is located inside the space that a coffee was placed to the section of thick bamboo, the stripper plate is installed through the screw gomphosis to the surface of threaded rod, the top of interception filter plate is run through and is installed linking sleeve, the block set dish is installed to the bottom of threaded rod, and the surface of block set dish and the laminating of linking telescopic inner wall.

As preferred, the back of combined plywood is provided with two sets of spacing grooves of arranging side by side, the back movable mounting of combined plywood has the header tank, two sets of T type card strips of arranging side by side are installed in the front of header tank, and the outer wall of two sets of T type card strips is laminated with the inner wall of two sets of spacing grooves respectively, the apron that turns over is installed through the hinge in the top of header tank, L type folded plate is installed to the bottom of header tank.

As preferred, miniature extraction pump and protection casing are installed to the top of L type folded plate, and inside miniature extraction pump was located the space of protection casing, inside miniature extraction pump's input extended the space that gets into the header tank, pipe is carried to miniature extraction pump's output installation, the shower nozzle is installed to pipe's tail end, the mouth of pipe of intaking is installed at the top of heat conduction container, and the mouth of pipe of intaking is located the below of shower nozzle, pipe's surface is carried and has been cup jointed the mounting that the multiunit was evenly arranged, and the outer wall laminating of the outer wall of mounting and one side outer wall of combined sheet.

Preferably, the top of the flip plate is provided with an N-shaped pull rod, the back of the water collecting tank is provided with an observation window and water level scale marks, and the observation window is positioned on one side of the water level scale marks.

Preferably, the cylinder is installed at the top of combined plywood, spacing plectane is installed at the cylindrical top, the locking long slab has been cup jointed in the activity of cylindrical surface, and the bottom of locking long slab and the top laminating of flip board.

As preferred, the front-mounted of combined plywood has the bottom plate, and the bottom plate is located the below of layer board, the arc limiting plate that two sets of mirror images were arranged is installed at the top of layer board, and two sets of arc limiting plates are located the both sides of heating backing plate respectively, outlet conduit is installed in the front of heat conduction container, control valve is installed at outlet conduit's top.

Preferably, the inner wall of the coffee placing cylinder is provided with a threaded ring, the bottom of the top cover is provided with a combined ring, and the combined ring is in threaded embedded connection with the threaded ring.

Preferably, the extraction method of the coffee extraction device comprises the following steps:

s1, a worker opens a top cover, then coffee powder to be extracted is flatly paved above an intercepting filter plate, then the top cover is combined with a coffee placing cylinder again, then an electric telescopic rod electrically connected with the electric telescopic rod is started through a controller to enable the electric telescopic rod to contract upwards, then upward pulling force is generated on a supporting plate to drive all parts at the top of the supporting plate to adjust the height position upwards along with the controller, so that a transition pipe is wrapped at the bottom of an air inlet pipeline of a funnel, and meanwhile, a nozzle extends into the interior of an inlet pipe orifice;

s2, a miniature extraction pump electrically connected with the miniature extraction pump is operated through a controller, purified water loaded in the space of a water collecting tank is led out outwards, then the purified water is transferred to the space of a heat conduction container through a conveying guide pipe and a spray head until a set time is reached, the extraction operation of the miniature extraction pump is stopped, a heating base plate is started at the moment to enable the miniature extraction pump to convert electric energy into heat energy, the heat energy is transferred upwards, the heat energy is transferred to the place where the purified water loaded in the space of the heat conduction container, the purified water is gradually heated to boiling, the purified water is sucked into a coffee placing cylinder after the water is boiled, the coffee extraction is indicated at the moment, the boiling water sucked into the space of the coffee placing cylinder gradually overflows and intercepts coffee powder on the coffee placing cylinder, the heating operation of the heating base plate is stopped after a certain time, the liquid on the intercepting filter plate instantly drops downwards, and then the coffee liquid and the powder can be separated;

and S3, in the process of extracting the coffee powder, starting the micro servo motor to drive the micro servo motor to rotate towards the set direction, driving the threaded rod to rotate by the output shaft of the micro servo motor, enabling the extrusion plate connected with the threaded rod through threaded embedding to move downwards correspondingly, and generating downward extrusion force on the coffee powder at the top of the extrusion plate when the top of the extrusion plate is gradually close to the intercepting filter plate to enable coffee liquid to pass through the intercepting filter plate.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the coffee machine, two groups of electric telescopic rods are operated to enable the two groups of electric telescopic rods to simultaneously contract upwards or extend downwards, then upward pulling force and downward pushing force are generated on the supporting plate correspondingly, so that the distance between the heat conduction container and the coffee placing cylinder can be adjusted conveniently, when the distance between the heat conduction container and the coffee placing cylinder is gradually reduced, the transition pipe and the funnel air inlet pipe can be conveniently in butt joint, otherwise, a certain distance is generated between the top of the transition pipe and the funnel air inlet pipe, the heat conduction container can be conveniently taken down from the heating base plate by a worker, and then residual coffee liquid in the space of the transition pipe and the funnel air inlet pipe can be conveniently cleaned.

2. According to the invention, the output shaft of the miniature servo motor is driven to drive the threaded rod to rotate towards the set direction by operating the miniature servo motor, the extrusion plate which is connected with the threaded rod in a threaded embedding manner can correspondingly move downwards, when the top of the extrusion plate is gradually close to the intercepting filter plate, downward extrusion force can be generated on coffee powder at the top of the extrusion plate, so that the coffee liquid passes through the intercepting filter plate, and meanwhile, the coffee powder is subjected to supplementary extraction by matching with a mode of additionally adding extrusion, so that the coffee extraction effect is further improved, and the time for separating the coffee liquid from the powder is shortened.

3. According to the extraction device, the limiting groove is set for clamping the T-shaped clamping strip, so that the connection firmness of the water collection tank and the comprehensive plate is improved, the T-shaped clamping strip and the limiting groove are in a non-fixed fit state, the water collection tank and the comprehensive plate can be disassembled, after the T-shaped clamping strip and the limiting groove are disassembled, the whole operation of the extraction device is not affected, purified water is manually injected into the space of the heat conduction container, the whole occupied volume and the weight of the extraction device can be effectively reduced, and the carrying convenience of the extraction device is improved.

4. According to the invention, the supporting plate is driven to ascend through the two groups of electric telescopic rods, then when the heat conduction container ascends to the set height position, the spray head can extend into the interior of the water inlet pipe orifice, then purified water in the space of the water collection tank can be transferred to the interior of the space of the conveying guide pipe by operating the miniature extraction pump, and then the purified water is sprayed out of the space of the heat conduction container through the spray head, so that the purpose of automatic water guiding is achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the installation structure of the composite board, the water collection tank and the T-shaped clamping strip;

FIG. 3 is a schematic view of the installation structure of the pallet and the heating mat according to the present invention;

FIG. 4 is a schematic cross-sectional view of the coffee dispensing cartridge of the present invention;

FIG. 5 is a schematic view of the installation structure of the intercepting filter plate, the engaging sleeve and the clamping sleeve disc of the present invention;

FIG. 6 is a schematic view of the installation structure of the coffee container, the top cover and the combination ring according to the present invention;

FIG. 7 is a schematic view of the L-shaped flap and the micro-pump of the present invention;

FIG. 8 is a schematic diagram of the position structure of the heat-conducting container, the nozzle and the water inlet pipe nozzle according to the present invention.

In the figure: 1. a composite board; 2. a coffee placement cylinder; 3. a support plate; 4. a top cover; 5. a controller; 6. heating the base plate; 7. a heat conductive container; 8. a limiting ring; 9. intercepting the filter plate; 10. a hopper air intake duct; 11. a transition duct; 12. a connector tile; 13. an electric telescopic rod; 14. a micro servo motor; 15. a threaded rod; 16. a pressing plate; 17. engaging the sleeve; 18. clamping a sleeve disc; 19. a limiting groove; 20. a water collection tank; 21. t-shaped clamping strips; 22. turning over a cover plate; 23. l-shaped folded plates; 24. a micro-pump; 25. a delivery catheter; 26. a spray head; 27. a water inlet pipe orifice; 28. a fixing member; 29. an N-type pull rod; 30. an observation window; 31. locking the long plate; 32. a base plate; 33. an arc limiting plate; 34. a water outlet pipeline; 35. the rings are combined.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-8, an embodiment of the present invention is shown:

the coffee extraction device comprises a comprehensive plate 1, wherein a coffee placing cylinder 2 and a supporting plate 3 are embedded in the front surface of the comprehensive plate 1, the supporting plate 3 is positioned below the coffee placing cylinder 2, a top cover 4 is placed at the top of the coffee placing cylinder 2, and a controller 5 is installed on the outer wall of one side of the comprehensive plate 1;

heating backing plate 6 is installed to the top gomphosis of layer board 3, heating backing plate 6's top movable mounting has heat conduction container 7, spacing ring 8 and interception filter plate 9 are installed to the inner wall that a section of thick bamboo 2 was placed to coffee, and the bottom of intercepting filter plate 9 and the bottom laminating of spacing ring 8, a funnel admission line 10 is installed to the bottom that a section of thick bamboo 2 was placed to coffee, transition pipe 11 is installed at heat conduction container 7's top, and transition pipe 11 is located the below of funnel admission line 10, the rubber ring is installed to the inner wall of transition pipe 11, a section of thick bamboo 2 is placed to coffee all installs linkage plate 12, the top of two sets of linkage plate 12 all runs through and installs electric telescopic handle 13, and the bottom of two sets of electric telescopic handle 13 all laminates with the top of layer board 3.

The pore grooves in the intercepting filter plate 9 are dense, and the pore diameter of the pore grooves is smaller than the particle diameter of the coffee powder, so that the subsequent coffee liquid filtering is convenient, during the actual operation, the coffee powder needs to be flatly laid on the top of the intercepting filter plate 9, then the top cover 4 is combined with the coffee placing cylinder 2, so that no gap exists between the two, then the two are driven to simultaneously shrink upwards or extend downwards by operating the two groups of electric telescopic rods 13, then the supporting plate 3 is correspondingly generated with upward pulling force and downward pushing force to drive each component on the top of the supporting plate to adjust the height position upwards or downwards, wherein when the electric telescopic rods 13 shrink upwards for a set length, the transition pipe 11 on the top of the heat conduction container 7 can be wrapped on the bottom of the funnel air inlet pipeline 10, then purified water with a set amount is injected into the heat conduction container 7, then the heating base plate 6 is started to drive the electric energy to be converted into heat energy, then the heat energy is transferred to the place where the pure water loaded in the space is located through the heat conduction container 7, the pure water is gradually heated to boiling, then the boiling pure water is sucked into the coffee placing cylinder 2 and gradually overflows the coffee powder on the intercepting filter plate 9, after a certain time, the heating operation of the heating backing plate 6 is stopped, at the moment, the liquid on the intercepting filter plate 9 instantly drops down to the space inside the heat conduction container 7, the separation of coffee liquid and powder can be completed, the coffee layer is rapidly penetrated by the mixture of high-pressure steam and water, the coffee is instantly extracted, the temperature of the coffee is very high, the content of impurities such as caffeine is very low, the taste is rich, the electric telescopic rod 13 extends downwards for a set distance, and a certain distance is generated between the top of the transition pipe 11 and the funnel air inlet pipe 10, the heat conducting container 7 is then conveniently taken off from the heating base plate 6 by a worker.

Miniature servo motor 14 is installed at the top of top cap 4, and threaded rod 15 is installed to miniature servo motor 14's output, and threaded rod 15 is located inside the space that a coffee was placed a section of thick bamboo 2, and stripper plate 16 is installed through the screw gomphosis to the surface of threaded rod 15, and the top of intercepting filter plate 9 is run through and is installed linking sleeve 17, and block set 18 is installed to the bottom of threaded rod 15, and the surface of block set 18 and the inner wall laminating that links up sleeve 17.

By operating the micro servo motor 14, the output shaft of the micro servo motor drives the threaded rod 15 to rotate towards the set direction, at the moment, the extrusion plate 16 connected with the threaded rod 15 through threaded embedding can move downwards correspondingly, when the top of the extrusion plate 16 is close to the intercepting filter plate 9 gradually, downward extrusion force can be generated on coffee powder at the top of the extrusion plate, coffee liquid in the coffee powder can pass through the intercepting filter plate 9, the crushing rate of a coffee layer is accelerated to be damaged, the coffee powder is subjected to supplementary extraction through an additional extrusion mode, the coffee extraction effect is further improved, the time of separating coffee liquid from powder is reduced, meanwhile, the clamping sleeve disc 18 and the connecting sleeve 17 are in a non-fixed joint state, the clamping sleeve disc 18 can rotate along with the inside of the connecting sleeve 17 when the threaded rod 15 rotates, at the moment, the connecting sleeve 17 and the intercepting filter plate 9 do not rotate, but when the top cover 4 drives the threaded rod 15 to move upwards, the connecting sleeve 17 and the intercepting filter plate 9 can be driven to move upwards correspondingly, and the coffee powder residues left on the connecting sleeve 17 can be conveniently processed after the intercepting filter plate 9 is separated from the inside of the coffee cylinder 2.

The back of combined sheet 1 is provided with two sets of spacing grooves 19 of arranging side by side, and the back movable mounting of combined sheet 1 has header tank 20, and two sets of T type card strips 21 of arranging side by side are installed in the front of header tank 20, and the outer wall of two sets of T type card strips 21 respectively with the inner wall laminating of two sets of spacing grooves 19, and flip board 22 is installed through the hinge in the top of header tank 20, and L type folded plate 23 is installed to the bottom of header tank 20.

The settlement of spacing groove 19 is used for block T type card strip 21, then increased the fastness that header tank 20 and combined board 1 linked up, and because be in the non-fixed laminating state between T type card strip 21 and the spacing groove 19, so can dismantle between header tank 20 and the combined board 1, the two is dismantled the back, do not influence the whole operation of this extraction device, it can through manual toward the inside pure water that injects into in space of heat conduction container 7, then can effectively reduce whole volume and the weight that occupies of this extraction device, then increased the convenience that this device carried.

Miniature extraction pump 24 and protection casing are installed at the top of L type folded plate 23, and inside miniature extraction pump 24 was located the space of protection casing, inside miniature extraction pump 24's input extended the space that gets into header tank 20, delivery conduit 25 is installed to miniature extraction pump 24's output, shower nozzle 26 is installed to delivery conduit 25's tail end, water inlet pipe 27 is installed at the top of heat conduction container 7, and water inlet pipe 27 is located shower nozzle 26's below, the surface of delivery conduit 25 has cup jointed the mounting 28 that the multiunit was evenly arranged, and the outer wall of mounting 28 and the laminating of one side outer wall of combined sheet 1.

When heat conduction container 7 rises to the set height position, shower nozzle 26 extensible gets into the inside of water inlet pipe mouth 27, then through operation miniature extraction pump 24, can be with the inside pure water of header tank 20 space toward the inside space of conveying pipe 25 transfer, then spout to heat conduction container 7's space inside through shower nozzle 26 to reach the purpose of independently guiding water, need not in addition to pour the liquid of making coffee to heat conduction container 7's space inside, then effectively save the operating procedure, and be in the removable assembly state between conveying pipe 25 and the miniature extraction pump 24.

An N-shaped pull rod 29 is installed at the top of the flip plate 22, an observation window 30 and water level scale marks are arranged on the back of the water collecting tank 20, and the observation window 30 is positioned on one side of the water level scale marks.

The setting of the N-shaped pull rod 29 increases the force application point for the worker to turn over the flip plate 22, and the setting of the observation window 30 and the water level scale mark is convenient for the worker to know the water level condition in the space of the water collecting tank 20 at any time.

The cylinder is installed at the top of combined sheet 1, and spacing plectane is installed at the cylindrical top, and cylindrical surface activity has cup jointed locking long plate 31, and the bottom of locking long plate 31 and the top laminating of flip board 22.

The locking long plate 31 and the cylinder are in a non-fixed attaching state, after the flip plate 22 is closed, the bottom of the locking long plate 31 can be made to be attached to the top of the flip plate 22 by applying a rotating force to the locking long plate 31, at the moment, the flip plate 22 cannot be easily opened, and then the firm effect of combining the flip plate 22 and the water collecting tank 20 is further improved.

Bottom plate 32 is installed on the front of combined panel 1, and bottom plate 32 is located the below of layer board 3, and the arc limiting plate 33 that two sets of mirror images were arranged is installed at the top of layer board 3, and two sets of arc limiting plates 33 are located the both sides of heating backing plate 6 respectively, and outlet conduit 34 is installed on the front of heat conduction container 7, and the control valve is installed at outlet conduit 34's top.

The bottom plate 32 has increased the counter weight of synthesizing board 1 the place ahead position, in order to avoid the situation that whole device appears toppling over backward, the inner circle diameter that two sets of arc limiting plates 33 enclosed and close the formation is the same with heat conduction container 7's outer lane diameter, then effectively avoid placing the phenomenon that position skew appears in heat conduction container 7 on heating backing plate 6, so that influence the combination of cup jointing between follow-up transition pipe 11 and the funnel inlet duct 10, and the corresponding position between inlet pipe 27 and the shower nozzle 26, the control valve is opened the back, outlet conduit 34 is in the mediation state, make things convenient for the coffee liquid of heat conduction container 7 space inside to discharge outward this moment.

The inner wall of the coffee placing cylinder 2 is provided with a thread ring, the bottom of the top cover 4 is provided with a combined ring 35, and the combined ring 35 is in embedded connection with the thread ring through threads.

The outer surface of the combined ring 35 is provided with a thread structure consistent with the thread ring, so that the detachable effect of the connection between the top cover 4 and the coffee placing cylinder 2 is increased.

The extraction method of the coffee extraction device comprises the following steps:

s1, a worker opens a top cover 4, coffee powder to be extracted is flatly laid above an intercepting filter plate 9, the top cover 4 is combined with a coffee placing cylinder 2 again, an electric telescopic rod 13 electrically connected with the controller 5 is started through the controller 5 to enable the electric telescopic rod to contract upwards, an upward pulling force is generated on a supporting plate 3 to drive all parts on the top of the supporting plate to adjust the height position upwards along with the controller, so that a transition pipe 11 is wrapped at the bottom of a funnel air inlet pipeline 10, and meanwhile, a spray head 26 extends into an water inlet pipe orifice 27;

s2, operating a micro extraction pump 24 electrically connected with the controller 5 through the controller, then guiding purified water loaded in the space of the water collecting tank 20 outwards, transferring the purified water to the space of the heat conducting container 7 through a conveying pipe 25 and a spray head 26 until a set time is reached, stopping the extraction operation of the micro extraction pump 24, starting the heating pad 6 at the moment to convert electric energy into heat energy, then transferring the heat energy upwards, transferring the heat energy to the position of the purified water loaded in the space of the heat conducting container 7 through the heat conducting container 7, gradually heating the purified water to boiling, sucking the boiled water into the coffee placing cylinder 2 after the water is boiled, indicating that coffee extraction starts, gradually overflowing the coffee powder on the filter plate 9 by the boiled water sucked into the space of the coffee placing cylinder 2, stopping the heating operation of the heating pad 6 after a certain time, instantly dropping the liquid on the filter plate 9, and further completing the separation of the coffee liquid and the powder;

s3, in the process of extracting the coffee powder, the micro servo motor 14 is started to drive the micro servo motor to rotate towards the set direction, then the output shaft of the micro servo motor drives the threaded rod 15 to rotate, the extrusion plate 16 connected with the threaded rod 15 in a threaded embedding mode can correspondingly move downwards, and when the top of the extrusion plate 16 is gradually close to the intercepting filter plate 9, downward extrusion force can be generated on the coffee powder on the top of the extrusion plate, so that the coffee liquid passes through the intercepting filter plate 9.

The working principle is as follows: the electric telescopic rod 13 is used for upwards extending operation, the heat conduction container 7 can be driven to ascend together, the transition pipe 11 is enabled to be sleeved at the bottom of the funnel air inlet pipeline 10, then purified water in the space of the water collection tank 20 is injected into the space of the heat conduction container 7 by operating the micro extraction pump 24, then the heating cushion plate 6 is started to convert electric energy into heat energy, the purified water in the space of the heat conduction container 7 is used for heating, after the purified water is boiled, the purified water is sucked into the coffee placing cylinder 2, the boiling water sucked into the space of the coffee placing cylinder 2 can gradually overflow coffee powder on the intercepting filter plate 9, meanwhile, the micro servo motor 14 is operated in a matching mode, an output shaft of the micro servo motor is enabled to drive the threaded rod 15 to rotate towards a set direction, so that the extruding plate 16 can correspondingly downwards move, when the top of the extruding plate 16 is gradually close to the intercepting filter plate 9, downward extruding force can be generated on the coffee powder on the top of the extruding plate, coffee liquid can pass through the intercepting filter plate 9, after a certain time, the heating operation of the cushion plate 6 is stopped, the liquid can instantly drop downwards, then the coffee powder can be separated, and the extracting efficiency can be effectively improved in a siphon extraction mode.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Coffee extraction device, including combined sheet (1), its characterized in that: a coffee placing cylinder (2) and a supporting plate (3) are embedded in the front of the comprehensive plate (1), the supporting plate (3) is located below the coffee placing cylinder (2), a top cover (4) is placed at the top of the coffee placing cylinder (2), and a controller (5) is installed on the outer wall of one side of the comprehensive plate (1);

heating backing plate (6) are installed to the top gomphosis of layer board (3), the top movable mounting of heating backing plate (6) has heat conduction container (7), spacing ring (8) and interception filter plate (9) are installed to the inner wall that a coffee placed a section of thick bamboo (2), and the bottom of interception filter plate (9) and the bottom laminating of spacing ring (8), funnel inlet duct way (10) are installed to the bottom that a coffee placed a section of thick bamboo (2), transition pipe (11) are installed at the top of heat conduction container (7), and transition pipe (11) are located the below of funnel inlet duct way (10), the rubber ring is installed to the inner wall of transition pipe (11), the both sides that a section of thick bamboo (2) were placed to coffee all install linkage plate (12), and are two sets of the top of linkage plate (12) all runs through and installs electric telescopic handle (13), and the bottom of two sets of electric telescopic handle (13) all laminates with the top of layer board (3).

2. A coffee extraction apparatus as claimed in claim 1, wherein: miniature servo motor (14) are installed at the top of top cap (4), threaded rod (15) are installed to the output of miniature servo motor (14), and threaded rod (15) are located inside the space that a coffee placed a section of thick bamboo (2), stripper plate (16) are installed through the screw gomphosis to the surface of threaded rod (15), the top of interception filter plate (9) is run through and is installed linking sleeve (17), block set (18) are installed to the bottom of threaded rod (15), and the surface of block set (18) and the inner wall laminating of linking sleeve (17).

3. A coffee extraction apparatus as claimed in claim 1, wherein: the back of combined plywood (1) is provided with two sets of spacing groove (19) of arranging side by side, the back movable mounting of combined plywood (1) has header tank (20), the front of header tank (20) is installed two sets of T type card strip (21) of arranging side by side, and the outer wall of two sets of T type card strip (21) laminate with the inner wall of two sets of spacing groove (19) respectively, flip board (22) is installed through the hinge at the top of header tank (20), L type folded plate (23) are installed to the bottom of header tank (20).

4. A coffee extraction apparatus as claimed in claim 3, wherein: miniature extraction pump (24) and protection casing are installed at the top of L type folded plate (23), and inside miniature extraction pump (24) was located the space of protection casing, inside the space of the input extension entering header tank (20) of miniature extraction pump (24), delivery conduit (25) were installed to the output of miniature extraction pump (24), shower nozzle (26) are installed to the tail end of delivery conduit (25), water inlet pipe mouth (27) are installed at the top of heat conduction container (7), and water inlet pipe mouth (27) are located the below of shower nozzle (26), the surface of delivery conduit (25) has cup jointed mounting (28) that the multiunit was evenly arranged, and the outer wall of mounting (28) and the laminating of one side outer wall of synthesizing board (1).

5. A coffee extraction apparatus as claimed in claim 3, wherein: an N-shaped pull rod (29) is installed at the top of the flip plate (22), an observation window (30) and water level scale marks are arranged on the back face of the water collecting tank (20), and the observation window (30) is located on one side of the water level scale marks.

6. A coffee extraction apparatus as claimed in claim 3, wherein: the cylinder is installed at the top of combined sheet (1), spacing plectane is installed at the cylindrical top, locking long slab (31) has been cup jointed in the activity of cylindrical surface, and the bottom of locking long slab (31) and the top laminating of flip board (22).

7. A coffee extraction apparatus as claimed in claim 1, wherein: bottom plate (32) are installed in the front of combined sheet (1), and bottom plate (32) are located the below of layer board (3), arc limiting plate (33) that two sets of mirror images were arranged are installed at the top of layer board (3), and just two sets of arc limiting plate (33) are located the both sides of heating pad (6) respectively, outlet conduit (34) are installed in the front of heat conduction container (7), the control valve is installed at the top of outlet conduit (34).

8. A coffee extraction apparatus as claimed in claim 1, wherein: the inner wall of the coffee placing cylinder (2) is provided with a thread ring, the bottom of the top cover (4) is provided with a combined ring (35), and the combined ring (35) is connected with the thread ring in a threaded embedded mode.

9. Coffee extraction device according to any of claims 1 to 8, characterized in that the extraction method of the coffee extraction device comprises the following steps:

s1, a worker opens a top cover (4), coffee powder to be extracted is flatly laid above an intercepting filter plate (9), the top cover (4) is combined with a coffee placing cylinder (2) again, an electric telescopic rod (13) electrically connected with the top cover is started through a controller (5) to enable the top cover to shrink upwards, upward pulling force is generated on a supporting plate (3) to drive all parts at the top of the supporting plate to adjust the height position upwards along with the parts, so that a transition pipe (11) is wrapped at the bottom of a funnel air inlet pipeline (10), and meanwhile a spray head (26) extends into the inner part of an air inlet pipe opening (27);

s2, a miniature extraction pump (24) electrically connected with the miniature extraction pump is operated through a controller (5), purified water loaded in the space of a water collecting tank (20) is led out outwards, then is transferred to the space of a heat conduction container (7) through a conveying pipe (25) and a spray head (26) until a set time is reached, the extraction operation of the miniature extraction pump (24) is stopped, at the moment, a heating backing plate (6) is started to convert electric energy into heat energy, the heat energy is transferred upwards, the purified water is gradually heated to boiling through the transfer of the heat conduction container (7) to the place of the purified water loaded in the space, the purified water is sucked into the coffee placing cylinder (2) after the water is boiled, the coffee extracting is indicated at the moment, the boiling water sucked into the space of the coffee placing cylinder (2) can gradually intercept coffee powder on a filter plate (9), after a certain time, the heating operation of the heating backing plate (6) is stopped, at the moment, the liquid intercepted on the filter plate (9) can instantly fall downwards, and then the separation of the coffee liquid and the coffee powder can be completed;

s3, in the process of extracting the coffee powder, the micro servo motor (14) is started to drive the coffee powder to rotate towards the set direction, then an output shaft of the micro servo motor drives the threaded rod (15) to rotate, the extrusion plate (16) connected with the threaded rod (15) in a threaded embedding mode can move downwards correspondingly, and when the top of the extrusion plate (16) is gradually close to the intercepting filter plate (9), downward extrusion force can be generated on the coffee powder on the top of the extrusion plate, so that coffee liquid passes through the intercepting filter plate (9).