CN111938429A - Extraction device of coffee machine - Google Patents
Extraction device of coffee machine Download PDFInfo
- Publication number
- CN111938429A CN111938429A CN202010721410.0A CN202010721410A CN111938429A CN 111938429 A CN111938429 A CN 111938429A CN 202010721410 A CN202010721410 A CN 202010721410A CN 111938429 A CN111938429 A CN 111938429A
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- extraction
- needle
- coffee machine
- base
- machine according
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/06—Filters or strainers for coffee or tea makers ; Holders therefor
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/4403—Constructional details
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
The invention relates to an extraction device of a coffee machine, which comprises a fixed base, a bracket, a slide rail, an extraction chamber, a needle base, a plurality of extraction needles, a transmission unit, a water tank, a conduit and a temperature control unit. The coffee extracting and filtering mechanism has the advantages that a simple and quick coffee extracting and filtering mechanism is formed by utilizing the matching action of the extracting needle and the extracting chamber; in the extraction process, under the dual actions of the gravity of the extraction liquid and the continuously increased pressure in the extraction chamber, the extraction liquid flows out through the liquid outlet holes, and the quality is uniform; through the temperature control unit, hot extraction or cold extraction can be carried out, and different use requirements are met.
Description
Technical Field
The invention relates to the technical field of coffee machines, in particular to an extraction device of a coffee machine.
Background
In the case of manually brewing coffee, a general procedure is to grind coffee beans to obtain coffee powder, place the coffee powder on a filter paper, place the filter paper in a coffee cup or a coffee pot, and then slowly extract the coffee powder with hot water. The process is not only complicated, but also the coffee tastes different.
Therefore, there is a need for an extraction device that simplifies the process of making coffee by hand and improves the uniformity of coffee taste.
Disclosure of Invention
The invention aims to provide an extraction device of a coffee machine, aiming at the defects in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
an extraction device of a coffee machine, comprising:
a fixed base;
the bracket is fixedly connected with the fixed base, and the bracket and the fixed base are L-shaped;
a slide rail, the slide rail with the leg joint, the slide rail is parallel to the leg joint sets up
The extraction chamber is connected with the bracket and is positioned below the slide rail, and a plurality of liquid discharge holes are formed in the bottom of the extraction chamber;
the needle base is connected with the sliding rail in a sliding mode and located above the extraction chamber, the needle base comprises a cavity and an inlet hole, the cavity is arranged inside the needle base, and the inlet hole is communicated with the cavity;
the extraction needles correspond to the liquid discharge holes one by one, the first end of each extraction needle is connected with the needle base and communicated with the cavity, the second end of each extraction needle is aligned with the extraction chamber, each extraction needle comprises a plurality of discharge holes, and the discharge holes are arranged along the axial direction of the extraction needle;
the transmission unit is arranged on the bracket, is connected with the needle base and controls the needle base to slide in a reciprocating manner on the sliding rail, so that the second ends of the extraction needles are respectively contacted with the corresponding liquid discharge holes;
the water tank is arranged at the top of the bracket;
a conduit having a first end connected to the water tank and a second end connected to the inlet hole;
and the temperature control unit is connected with the water tank and used for heating or refrigerating the liquid in the water tank.
In one embodiment, the method further comprises:
a pressure control valve disposed at a first end of the conduit.
In one embodiment thereof, the extraction needle further comprises:
and the filter screen is arranged outside each discharge hole.
In one embodiment thereof, the extraction needle further comprises:
the flow guide channels are arranged at the second end of the extraction needle, and each flow guide channel is in a direction from the first end of the extraction needle to the second end of the extraction needle.
In one embodiment, the method further comprises:
a first sealing gasket disposed on a side of the needle base proximate the extraction chamber.
In one embodiment thereof, the extraction needle comprises:
the pipe body is of a hollow structure, and a plurality of discharge holes are formed in the pipe body;
the syringe needle, the syringe needle is solid construction, the syringe needle setting is in the second end of body.
In one embodiment, the method further comprises:
and the joint of each extraction needle and the needle base is provided with one second sealing washer.
In one embodiment thereof, the transmission unit comprises:
the working rod is rotatably connected with the top end of the bracket;
the first end of connecting rod with the working lever rotates to be connected, the second end of connecting rod with the top of needle base is connected.
In one embodiment, the length of the extraction needle is greater than or equal to the height of the extraction chamber.
In one embodiment, the discharge hole has an inner diameter larger than that of the extraction needle.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
according to the extraction device of the coffee machine, a simple and quick coffee extraction and filtering mechanism is formed by utilizing the matching effect of the extraction needle and the extraction chamber; in the extraction process, under the dual actions of the gravity of the extraction liquid and the continuously increased pressure in the extraction chamber, the extraction liquid flows out through the liquid outlet holes, and the quality is uniform; through the temperature control unit, hot extraction or cold extraction can be carried out, and different use requirements are met.
Drawings
FIG. 1 is a schematic diagram of an exemplary embodiment of the present invention.
FIG. 2 is a cross-sectional view of a needle base of an exemplary embodiment of the invention.
Fig. 3 is a schematic view of an extraction needle of an exemplary embodiment of the present invention.
Wherein the reference numerals are: the device comprises a fixed base 1, a support 2, a slide rail 3, an extraction chamber 4, a needle base 5, an extraction needle 6, a transmission unit 7, a water tank 8, a guide pipe 9, a temperature control unit 10, a pressure control valve 11, a first sealing washer 12, a second sealing washer 13, a liquid discharge hole 14, a cavity 15, an inlet hole 16, a pipe body 17, a needle head 18, a discharge hole 19, a filter screen 20, a flow guide channel 21, a working rod 22 and a connecting rod 23.
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.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
An exemplary embodiment of the present invention, as shown in fig. 1, an extraction apparatus of a coffee machine includes a fixed base 1, a bracket 2, a slide rail 3, an extraction chamber 4, a needle base 5, a plurality of extraction needles 6, a transmission unit 7, a water tank 8, a guide tube 9, and a temperature control unit 10.
The bottom of the bracket 2 is fixedly connected with the fixed base 1 and is L-shaped.
The slide rail 3 is arranged on the upper part of the bracket 2, is fixedly connected with the bracket 2 and is arranged in parallel to the bracket 2.
The extraction chamber 4 is fixedly connected with the bracket 2 and is positioned at the upper part of the fixed base 1 and the lower part of the slide rail 3. The extraction chamber 4 comprises a plurality of drainage holes 14, and the plurality of drainage holes 14 are arranged at the bottom of the extraction chamber 4 and used for discharging coffee extract in the extraction chamber 4.
The needle base 5 is slidably connected to the slide rail 3 and is located at the upper part of the extraction chamber 4. Wherein the outer diameter of the bottom of the needle base 5 is smaller than or equal to the inner diameter of the top of the extraction chamber 4. As shown in fig. 2, the needle base 5 includes a cavity 15, an inlet hole 16, the cavity 15 is disposed inside the needle base 5, the inlet hole 16 is disposed at a side portion of the needle base 5 and communicates with the cavity 15, and a through hole communicating with the plurality of extraction needles 6 is disposed at a bottom portion of the cavity 15.
The extraction needles 6 are arranged at the lower part of the needle base 5 and are fixedly connected or detachably connected with the needle base 5. The purpose of the detachable connection is to enable maintenance or replacement of the extraction needle 6 in order to prolong the service life of the extraction device of the coffee machine.
As shown in fig. 3, the extraction needle 6 includes a tube 17, a needle 18, a plurality of discharge holes 19, a plurality of filter screens 20, and a plurality of guide channels 21.
The tube 17 is a hollow structure, and a first end of the tube is connected to the needle base 5 for allowing the liquid inside the cavity 15 of the needle base 5 to enter the tube 17.
The needle 18 is a cone of solid construction, and has a first end connected to the second end of the tube 17, and a second end aligned with the drain hole 14 of the extraction chamber 4.
A plurality of discharge holes 19 are provided in the wall of the tubular body 17 in the axial direction of the tubular body 17 for allowing the liquid inside the tubular body 17 to enter the inside of the extraction chamber 4 through the discharge holes 19. Further, the inner diameter of the discharge hole 19 is larger than that of the pipe body 17.
The plurality of filter screens 20 correspond to the plurality of discharge holes 19 one by one, and a filter screen 20 is disposed outside each discharge hole 19 for preventing the coffee powder inside the extracting chamber 4 from entering the inside of the tube body 17 through the discharge hole 19.
The plurality of flow guide channels 21 are arranged on the outer wall of the needle 18, a first end of each flow guide channel 21 is positioned at the joint of the needle 18 and the tube body 17, and a second end of each flow guide channel 21 is positioned at the second end of the needle 18, so that the coffee extract in the extraction chamber 4 flows out to the outer side of the liquid discharge hole 14 along the flow guide channels 21.
Further, the length of the extraction needle 6 is greater than or equal to the height of the extraction chamber 4. During the extraction process, the second end of the extraction needle 6 is allowed to pass through the drain hole 14 of the extraction chamber 4.
The transmission unit 7 is rotatably connected with the support 2 and fixedly connected with the needle base 5, and is used for enabling the needle base 5 to reciprocate along the slide rail 3. The transmission unit 7 comprises a working rod 22 and a connecting rod 23, the first end of the working rod 22 is rotatably connected with the top of the bracket 2, the first end of the connecting rod 23 is rotatably connected with the middle part of the working rod 22, and the second end of the connecting rod 23 is fixedly connected with the top of the needle base 5. When the working rod 22 rotates at the joint with the support 2, the working rod 22 drives the connecting rod 23 to perform a vertical linear reciprocating motion, so that the needle base 5 performs a vertical reciprocating motion on the slide rail 3. In the case of extraction, a number of extraction needles 6 move downwards into the interior of the extraction chamber 4; in the case of extraction completion, several extraction needles 6 are moved upwards out of the extraction chamber 4.
Further, an anti-slip grip is arranged at the second end of the working rod 22 for improving the friction force of the working rod 22 and avoiding the hand of the worker from being separated from the working rod in the operation process.
The water tank 8 is fixedly connected with the bracket 2 and is used for providing liquid for extraction for the needle base 5.
A first end of the conduit 9 is connected to the water reservoir 8 and a second end of the conduit 9 is connected to an access hole 16 of the needle base 5 for allowing liquid inside the water reservoir 8 to pass through the conduit 9 into the cavity 15 of the needle base 5.
A temperature control unit 10 is provided inside the water tank 8 for controlling the temperature of the liquid inside the water tank 8, including heating and cooling. Specifically, the temperature control unit 10 is a semiconductor heating structure, and can perform heating operation or cooling operation on the liquid inside the water tank 8 according to a control signal, so as to meet the requirements of hot extraction and cold extraction.
Furthermore, a pressure control valve 11 is further arranged at the first end of the conduit 9 and used for conveying the liquid in the water tank 8 outwards after the liquid reaches a certain pressure, so that the requirement of high-pressure extraction in the extraction process is met, the extraction efficiency is improved, and the uniform quality of the extraction liquid is ensured.
Further, a first sealing washer 12 is disposed at the lower portion of the needle base 5, and the outer diameter of the first sealing washer 12 is greater than or equal to the outer diameter of the bottom of the needle base 5. During the extraction process, the bottom of the needle base 5 is pressed against the top of the extraction chamber 4, and the gap between the needle base 5 and the extraction chamber 4 is filled with the first sealing gasket 12, so that the extraction chamber 4 is better sealed, and the pressure requirement during the extraction process is met.
Further, a second sealing gasket 13 is disposed at the first end of each extraction needle 6 for sealing the through hole of the extraction needle 6 left at the top of the extraction chamber 4 during the extraction process, so as to prevent the liquid inside the extraction chamber 4 from overflowing from the through hole under the action of pressure.
The using method of the invention is as follows: placing the coffee to be extracted into the extraction chamber 4; the operating lever 22 is operated to rotate clockwise, so that the needle base 5 moves downwards on the slide rail 3; the extraction needle 6 enters the extraction chamber 4 and is inserted between the coffee substances to be extracted; according to the extraction requirement, the liquid in the water tank 8 is heated or refrigerated by using the temperature control unit 10; then the heated or cooled liquid enters the cavity 15 through the inlet hole 16 along the conduit 9 and is injected into the coffee to be extracted from the outlet hole 19 of the extraction needle 6 to perform extraction operation to obtain extraction liquid; the extraction liquid flows out from the liquid discharge hole 14 along a plurality of flow guide channels 21 to finish the extraction operation.
Compared with the prior art, the extraction device of the coffee machine has the advantages that the extraction needle is inserted into the coffee to be extracted, so that the liquid with a certain temperature is fully fused with the coffee to be extracted, the extraction operation is carried out at a certain temperature and under a certain pressure, the extraction efficiency is improved, and the quality uniformity of the extraction liquid is ensured.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. An extraction device of a coffee machine, characterized in that it comprises:
a fixed base;
the bracket is fixedly connected with the fixed base, and the bracket and the fixed base are L-shaped;
a slide rail, the slide rail with the leg joint, the slide rail is parallel to the leg joint sets up
The extraction chamber is connected with the bracket and is positioned below the slide rail, and a plurality of liquid discharge holes are formed in the bottom of the extraction chamber;
the needle base is connected with the sliding rail in a sliding mode and located above the extraction chamber, the needle base comprises a cavity and an inlet hole, the cavity is arranged inside the needle base, and the inlet hole is communicated with the cavity;
the extraction needles correspond to the liquid discharge holes one by one, the first end of each extraction needle is connected with the needle base and communicated with the cavity, the second end of each extraction needle is aligned with the extraction chamber, each extraction needle comprises a plurality of discharge holes, and the discharge holes are arranged along the axial direction of the extraction needle;
the transmission unit is arranged on the bracket, is connected with the needle base and controls the needle base to slide in a reciprocating manner on the sliding rail, so that the second ends of the extraction needles are respectively contacted with the corresponding liquid discharge holes;
the water tank is arranged at the top of the bracket;
a conduit having a first end connected to the water tank and a second end connected to the inlet hole;
and the temperature control unit is connected with the water tank and used for heating or refrigerating the liquid in the water tank.
2. The extraction apparatus of a coffee machine according to claim 1, further comprising:
a pressure control valve disposed at a first end of the conduit.
3. The extraction device of a coffee machine according to claim 1, characterized in that said extraction needle further comprises:
and the filter screen is arranged outside each discharge hole.
4. The extraction device of a coffee machine according to claim 1, characterized in that said extraction needle further comprises:
the flow guide channels are arranged at the second end of the extraction needle, and each flow guide channel is in a direction from the first end of the extraction needle to the second end of the extraction needle.
5. The extraction apparatus of a coffee machine according to claim 1, further comprising:
a first sealing gasket disposed on a side of the needle base proximate the extraction chamber.
6. Extraction device of a coffee machine according to claim 1, characterized in that said extraction needle comprises:
the pipe body is of a hollow structure, and a plurality of discharge holes are formed in the pipe body;
the syringe needle, the syringe needle is solid construction, the syringe needle setting is in the second end of body.
7. The extraction apparatus of a coffee machine according to claim 1, further comprising:
and the joint of each extraction needle and the needle base is provided with one second sealing washer.
8. Extraction device of a coffee machine according to claim 1, characterized in that said transmission unit comprises:
the working rod is rotatably connected with the top end of the bracket;
the first end of connecting rod with the working lever rotates to be connected, the second end of connecting rod with the top of needle base is connected.
9. Extraction device of a coffee machine according to claim 1, characterized in that the length of the extraction needle is greater than or equal to the height of the extraction chamber.
10. The extraction apparatus of a coffee machine according to claim 1, wherein the inner diameter of the discharge hole is larger than the inner diameter of the extraction needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010721410.0A CN111938429A (en) | 2020-07-24 | 2020-07-24 | Extraction device of coffee machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010721410.0A CN111938429A (en) | 2020-07-24 | 2020-07-24 | Extraction device of coffee machine |
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| Publication Number | Publication Date |
|---|---|
| CN111938429A true CN111938429A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010721410.0A Pending CN111938429A (en) | 2020-07-24 | 2020-07-24 | Extraction device of coffee machine |
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| CN (1) | CN111938429A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648679A (en) * | 2021-08-16 | 2021-11-16 | 湖南和广生物科技有限公司 | Material basket for supercritical fluid extraction and extraction device composed of material basket |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1775234A1 (en) * | 2005-10-14 | 2007-04-18 | Nestec S.A. | Capsule for the preparation of a beverage |
| CN101254067A (en) * | 2007-02-27 | 2008-09-03 | 李文庆 | Automatic coffee making apparatus |
| CN102397010A (en) * | 2011-11-24 | 2012-04-04 | 广东新宝电器股份有限公司 | Multi-functional coffee machine |
| CN202341798U (en) * | 2011-12-19 | 2012-07-25 | 广东新宝电器股份有限公司 | Multifunction coffee maker |
| CN106724835A (en) * | 2016-11-29 | 2017-05-31 | 宁波夏纳电器有限公司 | A kind of multistage pressure extracting process of coffee |
| CN108041992A (en) * | 2018-01-12 | 2018-05-18 | 中山市众智电器有限公司 | A kind of coffee machine |
| CN109452864A (en) * | 2019-01-24 | 2019-03-12 | 广州煌牌自动设备有限公司 | A kind of steam is infused coffee device and method |
| CN209172018U (en) * | 2018-09-03 | 2019-07-30 | 主力智业（深圳）电器实业有限公司 | Cold extraction coffee machine |
| CN209678244U (en) * | 2019-01-24 | 2019-11-26 | 广州煌牌自动设备有限公司 | A kind of steam extraction mechanism and coffee machine |
| CN209678231U (en) * | 2019-01-24 | 2019-11-26 | 广州煌牌自动设备有限公司 | A kind of extraction mechanism, coffee machine |
-
2020
- 2020-07-24 CN CN202010721410.0A patent/CN111938429A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1775234A1 (en) * | 2005-10-14 | 2007-04-18 | Nestec S.A. | Capsule for the preparation of a beverage |
| CN101254067A (en) * | 2007-02-27 | 2008-09-03 | 李文庆 | Automatic coffee making apparatus |
| CN102397010A (en) * | 2011-11-24 | 2012-04-04 | 广东新宝电器股份有限公司 | Multi-functional coffee machine |
| CN202341798U (en) * | 2011-12-19 | 2012-07-25 | 广东新宝电器股份有限公司 | Multifunction coffee maker |
| CN106724835A (en) * | 2016-11-29 | 2017-05-31 | 宁波夏纳电器有限公司 | A kind of multistage pressure extracting process of coffee |
| CN108041992A (en) * | 2018-01-12 | 2018-05-18 | 中山市众智电器有限公司 | A kind of coffee machine |
| CN209172018U (en) * | 2018-09-03 | 2019-07-30 | 主力智业（深圳）电器实业有限公司 | Cold extraction coffee machine |
| CN109452864A (en) * | 2019-01-24 | 2019-03-12 | 广州煌牌自动设备有限公司 | A kind of steam is infused coffee device and method |
| CN209678244U (en) * | 2019-01-24 | 2019-11-26 | 广州煌牌自动设备有限公司 | A kind of steam extraction mechanism and coffee machine |
| CN209678231U (en) * | 2019-01-24 | 2019-11-26 | 广州煌牌自动设备有限公司 | A kind of extraction mechanism, coffee machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648679A (en) * | 2021-08-16 | 2021-11-16 | 湖南和广生物科技有限公司 | Material basket for supercritical fluid extraction and extraction device composed of material basket |
| CN113648679B (en) * | 2021-08-16 | 2022-09-30 | 湖南和广生物科技有限公司 | Material basket for supercritical fluid extraction and extraction device composed of material basket |
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Application publication date: 20201117 |